LOCAL CLIMATOLOGICAL DATA Monthly Summary
April 2018
Station: Blue Hill Meteorological Observatory Latitude: 42° 12' 44" N Longitude: 71° 06' 53" W Elevation (ground): 635 feet Time Zone: Eastern +--+-------------------------------+----+---------+---------+--+-----------+--------------------+-----------------------------+------+ | | Temperature | |Deg. Days|Precip Ty| | Precip | Pressure | Wind |Solar | | +------+------+------+------+---+ Hu-+----+----+1 fog | S+-----+-----+ Adj. to Sea Level +----+----+---+-------+-------+------+ | | M | M | A | | |mid-| H | C |2 hvy fog| n| | Ice +------+------+------+ Avg| Res|Res| Peak |2Minute| Mean | | | a | i | v | | D | ity| e | o |3 thunder| o|Water| plts| | | | | | +---+---+---+---+ W | | | x | n | e | | e | | a | o |4 ice plt| w| | | | | | S | S | | S | | S | | a | | D| i | i | r | M | w | M | t | l |5 hail | | E | S | | | M | p | p | | p | | p | | t | | a| m | m | a | e | | e | i | i |6 glaze | C| q | n | M | M | e | e | e | D | e | D | e | D | t | | t| u | u | g | a | P | a | n | n |7 duststm| v| u | o | a | i | a | e | e | i | e | i | e | i | s | | e| m | m | e | n | t | n | g | g |8 smk, hz| r| v | w | x | n | n | d | d | r | d | r | d | r | m² | | | | | | | | | | |9 blw snw| | | | | | | | | | | | | | | | 1| 2 | 3 | 4A | 4B | 5 | 6 | 7 | 8 | 9 |10| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18| 19| 20| 21| 22| 23 | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |01| 58.0 | 32.6 | 45.3 | 44.4 | 28| 55| 19| 0|.........| 0| 0.00| 0.0| 30.08| 29.83|29.942|17.5|14.6|162| 43| S| 30|171| 164 | |02| 38.4 | 29.0 | 33.7 | 32.8 | 25| 74| 31| 0|.........| 0| 0.15| 0.0| 30.20| 30.06|30.106| 5.2| 2.7|147| 17|ENE| 13| 76| 74 | |03| 46.8 | 30.1 | 38.5 | 36.1 | 32| 85| 26| 0|.........| 0| 0.48| 0.0| 30.24| 29.84|30.116| 9.4| 3.0|280| 24| NW| 19|297| 128 | |04| 54.4 | 35.6 | 45.0 | 43.5 | 40| 90| 20| 0|.........| 0| 0.20| 0.0| 29.84| 29.31|29.548|14.3| 7.2|201| 49|ESE| 34|104| 39 | |05| 40.3 | 26.4 | 33.3 | 32.8 | 13| 45| 32| 0|.........| 0| 0.00| 0.0| 30.09| 29.63|29.880|20.1| 4.9|239| 51|WSW| 35|249| 268 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 40.6 | 25.3 | 32.9 | 32.8 | 26| 77| 32| 0|.........| 0| 0.20| 0.0| 30.16| 29.70|29.942|11.3| 4.8|144| 34|ESE| 23|133| 89 | |07| 45.4 | 30.8 | 38.1 | 37.2 | 26| 68| 27| 0|.........| 0| 0.01| 0.0| 29.89| 29.68|29.786|10.0| 8.7|192| 32|SSE| 22|160| 181 | |08| 41.7 | 28.5 | 35.1 | 33.8 | 18| 54| 29| 0|.........| 0| 0.00| 0.0| 29.94| 29.72|29.825| 9.8| 9.0|224| 31| S| 22|198| 166 | |09| 44.8 | 24.3*| 34.5 | 34.5 | 16| 49| 30| 0|.........| 0| 0.00| 0.0| 30.19| 29.94|30.106| 8.7| 3.8|184| 29|SSE| 21|160| 266 | |10| 38.8 | 30.5 | 34.7 | 35.0 | 28| 75| 30| 0|.........| 0| 0.01| 0.0| 30.20| 30.14|30.174| 2.8| 2.6|208| 12|SSW| 9|213| 60 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 47.3 | 28.9 | 38.1 | 36.6 | 30| 80| 27| 0|.........| 0| 0.00| 0.0| 30.23| 30.06|30.141| 7.7| 0.7|157| 24|NNE| 19| 13| 203 | |12| 60.9 | 32.8 | 46.8 | 44.8 | 35| 71| 18| 0|.........| 0| 0.06| 0.0| 30.13| 29.75|30.007|12.9| 9.0| 89| 41|NNW| 30|349| 210 | |13| 65.0*| 46.1 | 55.5*| 56.3 | 46| 69| 9| 0|.........| 0| 0.01| 0.0| 29.94| 29.73|29.873|11.6| 9.7|134| 40| S| 31|178| 95 | |14| 50.9 | 35.4 | 43.2 | 43.8 | 37| 77| 22| 0|.........| 0| 0.00| 0.0| 30.36| 29.86|30.097|12.7| 4.2| 53| 32|NNE| 23| 25| 203 | |15| 35.6 | 30.0 | 32.8*| 32.1 | 27| 83| 32| 0|.........| 0| 0.10| 0.0| 30.50| 30.34|30.430|12.8|12.7| 30| 38|NNE| 26| 31| 39 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 55.0 | 32.2 | 43.6 | 42.5 | 42| 98| 21| 0|.........| 0| 2.24| 0.0| 30.36| 29.52|29.903|17.2|16.8|322| 40| NW| 30|317| 25 | |17| 47.9 | 35.2 | 41.6 | 42.1 | 34| 75| 23| 0|.........| 0| 0.00| 0.0| 29.63| 29.47|29.535|14.7| 8.3|229| 36|ESE| 26|285| 139 | |18| 52.3 | 31.6 | 42.0 | 40.9 | 29| 64| 23| 0|.........| 0| 0.00| 0.0| 29.78| 29.62|29.686|13.5| 9.0|215| 36| S| 25|228| 229 | |19| 40.4 | 33.7 | 37.1 | 37.0 | 34| 88| 28| 0|.........| 0| 0.30| 0.0| 29.85| 29.66|29.744| 7.4| 6.4|250| 25| S| 17|169| 43 | |20| 51.9 | 31.1 | 41.5 | 40.5 | 29| 66| 23| 0|.........| 0| 0.00| 0.0| 30.27| 29.85|30.051|15.6| 6.0| 81| 36| NE| 27| 47| 255 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 59.0 | 32.4 | 45.7 | 46.1 | 26| 48| 19| 0|.........| 0| 0.00| 0.0| 30.33| 30.20|30.269|10.7| 9.0|257| 30| W| 20|266| 296 | |22| | | | | | | | | | | | | | | | | | | | | | | | |23| | | | | | | | | | | | | | | | | | | | | | | | |24| | | | | | | | | | | | | | | | | | | | | | | | |25| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |26| | | | | | | | | | | | | | | | | | | | | | | | |27| | | | | | | | | | | | | | | | | | | | | | | | |28| | | | | | | | | | | | | | | | | | | | | | | | |29| | | | | | | | | | | | | | | | | | | | | | | | |30| | | | | | | | | | | | | | | | | | | | | | | | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |1015.4| 662.5|------|------|---|----| 521| 0| Days | 3.76| 0.0| 30.50| 29.31|29.977|11.5| 2.3|197| 51|WSW| 35|249| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 48.4| 31.5| 40.0 | 39.5 | 29|69.4|----|----|≥.01 Inch 11|15.62| 0.0| 15 | 4 |------|----|----|---| 5 | 5 | 144| +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | Season |Snow, Ice | | | | Number of Days | to Date |≥1.0 Inch 0| Greatest in 24 Hours and Dates | Greatest Depth on Ground | +------------------+-----------------+----+----+------------+--------------+-----------------+ of Snow, Ice Pellets or Ice | | Max Temperature | Min Temperature |5608| 0|Thunder 0|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 0| 2.34| 15-16| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 14 | 0 |----|----| Clear 0 Partly Cloudy 0 Cloudy 0 | +--------+---------+--------+--------+----+----+------------------------------------------+ NOTES: Data in column 4A are (MAX+MIN) / 2, whereas data in columns 4B, 5, 6, 15, 16, 23 are means via continuous observations Units: Temperature=°F, Wind=mph, Pressure=Inches Hg, Precipitation=inches. for 24 hours. Column 5: Dew point is calculated from temperature and humidity and is continuously averaged for 24 hours. Columns 7, 8: Degree Days heating base is 65°F, cooling base is 65°F. Data in columns 9, 10, 12 are entered manually by the station observer. Columns 17-18: Resultant wind is calculated by the vector sum of continuous wind observations. Column 23: Solar Radiation is measured in Watts/m² and is continuously averaged for 24 hours. Data in columns 4B, 5, 6, 15, 16, 23 are updated continuously, there by achieving a "true" mean.
OBSERVATIONS AT 3-HOUR INTERVALS
April 2018: Blue Hill Meteorological Observatory
+--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 1 | APR 2 | APR 3 | | | | | |00| 0|30.08| 0.00| 38| 30| 73|03| 17| 23| 0|30.06| 0.00| 33| 17| 52|16| 10| 20| 0|30.20| 0.00| 32| 27| 84|02| 11| 14| |03| 0|29.98| 0.00| 40| 31| 69|20| 24| 34| 0|30.09| 0.00| 32| 17| 53|16| 6| 9| 0|30.18| 0.00| 31| 27| 86|10| 10| 12| |06| 18|29.92| 0.00| 44| 33| 66|19| 25| 33| 25|30.10| 0.00| 33| 18| 55|02| 3| 5| 28|30.23| 0.00| 32| 28| 85|20| 9| 10| |09| 327|29.87| 0.00| 49| 38| 67|15| 18| 30| 32|30.13| 0.00| 29| 26| 90|31| 2| 5| 580|30.22| 0.00| 42| 33| 70|34| 8| 14| |12| 487|29.85| 0.00| 56| 37| 49|14| 15| 26| 320|30.10| 0.10| 32| 30| 90|33| 4| 6| 311|30.15| 0.00| 44| 32| 62|32| 12| 22| |15| 204|29.85| 0.00| 50| 35| 55|16| 13| 26| 148|30.07| 0.00| 35| 30| 82|07| 7| 11| 44|30.10| 0.07| 36| 34| 92|31| 7| 11| |18| 19|29.94| 0.00| 44| 14| 30|14| 20| 34| 7|30.09| 0.00| 35| 27| 73|17| 6| 8| 0|30.08| 0.17| 35| 34| 95|18| 7| 12| |21| 0|30.06| 0.00| 36| 17| 45|15| 13| 20| 0|30.13| 0.00| 32| 27| 81|17| 8| 11| 0|29.96| 0.00| 36| 34| 96|19| 8| 16| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 4 | APR 5 | APR 6 | | | | | |00| 0|29.84| 0.00| 37| 36| 97|08| 11| 16| 0|29.64| 0.00| 36| 22| 56|09| 29| 49| 0|30.09| 0.00| 28| 12| 51|23| 8| 12| |03| 0|29.75| 0.00| 37| 37| 97|16| 5| 10| 0|29.74| 0.00| 30| 16| 56|28| 28| 40| 0|30.12| 0.00| 26| 14| 59|22| 9| 16| |06| 14|29.67| 0.00| 38| 37| 97|23| 6| 10| 30|29.83| 0.00| 27| 13| 57|21| 24| 40| 30|30.16| 0.00| 26| 15| 64|20| 10| 13| |09| 97|29.58| 0.00| 42| 42| 98|29| 12| 16| 617|29.87| 0.00| 32| 11| 42|25| 15| 35| 538|30.12| 0.00| 35| 19| 51|13| 11| 20| |12| 98|29.41| 0.00| 53| 53| 99|34| 18| 30| 833|29.88| 0.00| 37| 13| 37|17| 12| 34| 142|30.01| 0.00| 32| 29| 89|13| 15| 25| |15| 5|29.31| 0.16| 54| 54| 98|19| 18| 25| 563|29.86| 0.00| 40| 13| 33|01| 21| 38| 56|29.82| 0.00| 32| 30| 95|12| 16| 23| |18| 16|29.41| 0.00| 45| 41| 86|19| 11| 24| 12|29.93| 0.00| 34| 11| 37|15| 21| 33| 21|29.73| 0.08| 38| 37| 96|05| 16| 23| |21| 0|29.52| 0.00| 42| 26| 54|18| 24| 46| 0|30.04| 0.00| 30| 11| 45|29| 14| 24| 0|29.73| 0.00| 38| 37| 96|33| 8| 11| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 7 | APR 8 | APR 9 | | | | | |00| 0|29.70| 0.00| 37| 36| 97|21| 6| 8| 0|29.89| 0.00| 31| 19| 60|24| 8| 13| 0|29.94| 0.00| 29| 20| 69|23| 12| 20| |03| 0|29.70| 0.00| 37| 35| 93|14| 10| 18| 0|29.86| 0.00| 29| 18| 62|24| 8| 14| 0|30.00| 0.00| 28| 20| 71|19| 14| 22| |06| 0|29.74| 0.00| 34| 33| 95|15| 8| 20| 23|29.83| 0.00| 29| 17| 62|25| 9| 18| 37|30.07| 0.00| 25| 16| 69|20| 8| 14| |09| 114|29.79| 0.00| 33| 25| 74|16| 18| 26| 441|29.82| 0.00| 36| 22| 57|22| 10| 18| 643|30.11| 0.00| 33| 12| 41|14| 17| 25| |12| 844|29.80| 0.00| 42| 26| 53|18| 7| 19| 550|29.77| 0.00| 39| 21| 47|20| 11| 17| 840|30.13| 0.00| 38| 12| 33|08| 14| 21| |15| 554|29.76| 0.00| 45| 23| 42|23| 9| 20| 188|29.72| 0.00| 41| 20| 43|19| 5| 9| 571|30.11| 0.00| 44| 13| 28|35| 7| 14| |18| 11|29.83| 0.00| 40| 20| 45|20| 9| 17| 11|29.78| 0.00| 37| 16| 42|18| 13| 31| 14|30.15| 0.00| 39| 12| 32|25| 9| 12| |21| 0|29.88| 0.00| 35| 19| 53|23| 13| 22| 0|29.89| 0.00| 33| 17| 51|21| 11| 19| 0|30.18| 0.00| 35| 22| 59|25| 5| 9| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 10 | APR 11 | APR 12 | | | | | |00| 0|30.19| 0.00| 35| 19| 53|22| 0| 2| 0|30.18| 0.00| 31| 28| 92|19| 8| 10| 0|30.10| 0.00| 33| 29| 85|16| 11| 18| |03| 0|30.18| 0.00| 34| 20| 57|23| 2| 3| 0|30.17| 0.00| 30| 29| 95|20| 7| 9| 0|30.08| 0.00| 35| 30| 81|13| 12| 15| |06| 25|30.19| 0.00| 33| 25| 70|23| 5| 7| 30|30.19| 0.00| 29| 28| 96|19| 0| 0| 51|30.11| 0.00| 35| 31| 85|12| 9| 11| |09| 190|30.20| 0.00| 38| 28| 65|20| 6| 9| 657|30.22| 0.00| 38| 35| 87|19| 4| 5| 633|30.12| 0.00| 47| 36| 65|14| 1| 4| |12| 163|30.18| 0.00| 37| 30| 74|19| 4| 6| 930|30.14| 0.00| 45| 27| 49|15| 5| 12| 703|30.07| 0.00| 55| 29| 37|11| 11| 22| |15| 58|30.14| 0.00| 37| 31| 80|19| 2| 4| 107|30.09| 0.00| 42| 31| 65|09| 9| 15| 420|29.98| 0.00| 56| 37| 48|07| 14| 23| |18| 16|30.14| 0.00| 36| 32| 85|18| 0| 2| 14|30.07| 0.00| 41| 30| 65|02| 14| 22| 0|29.92| 0.00| 46| 38| 72|07| 15| 23| |21| 0|30.18| 0.00| 33| 30| 87|18| 2| 3| 0|30.10| 0.00| 35| 31| 84|29| 13| 18| 0|29.85| 0.00| 43| 42| 94|07| 20| 28| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 13 | APR 14 | APR 15 | | | | | |00| 0|29.76| 0.00| 48| 41| 78|29| 21| 33| 0|29.87| 0.00| 46| 43| 88|15| 9| 14| 0|30.36| 0.00| 36| 27| 70|03| 13| 28| |03| 0|29.76| 0.00| 52| 43| 71|11| 22| 32| 0|29.87| 0.00| 44| 42| 92|19| 5| 6| 0|30.36| 0.00| 34| 25| 71|03| 16| 27| |06| 53|29.84| 0.00| 52| 43| 73|16| 17| 26| 42|29.95| 0.00| 45| 43| 91|19| 12| 13| 14|30.43| 0.00| 34| 23| 65|03| 14| 31| |09| 109|29.92| 0.00| 57| 46| 67|11| 10| 15| 613|30.04| 0.00| 51| 43| 75|15| 16| 22| 107|30.46| 0.00| 32| 26| 77|03| 20| 32| |12| 206|29.92| 0.00| 63| 48| 58|11| 10| 14| 684|30.09| 0.00| 51| 41| 70|00| 12| 23| 146|30.49| 0.00| 31| 28| 89|03| 21| 29| |15| 97|29.91| 0.00| 64| 49| 59|10| 4| 8| 213|30.16| 0.00| 45| 37| 73|02| 15| 23| 105|30.46| 0.00| 31| 29| 93|02| 15| 24| |18| 21|29.92| 0.00| 61| 50| 67|09| 9| 12| 7|30.26| 0.00| 38| 30| 73|02| 12| 30| 0|30.46| 0.00| 30| 29| 95|03| 10| 20| |21| 0|29.91| 0.00| 52| 46| 80|11| 9| 11| 0|30.32| 0.00| 38| 27| 65|02| 15| 25| 0|30.42| 0.00| 31| 30| 96|35| 3| 5| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 16 | APR 17 | APR 18 | | | | | |00| 0|30.36| 0.00| 32| 31| 96|33| 3| 4| 0|29.52| 0.00| 45| 44| 97|32| 15| 19| 0|29.63| 0.00| 35| 29| 77|12| 16| 23| |03| 0|30.28| 0.00| 33| 32| 97|34| 23| 35| 0|29.48| 0.00| 43| 42| 97|23| 14| 20| 0|29.63| 0.00| 32| 26| 78|10| 12| 19| |06| 9|30.19| 0.07| 36| 35| 97|33| 22| 34| 30|29.51| 0.00| 38| 36| 90|16| 13| 19| 51|29.65| 0.00| 32| 23| 68|22| 13| 19| |09| 46|30.07| 0.06| 38| 38| 97|32| 26| 37| 251|29.53| 0.00| 42| 35| 75|26| 18| 27| 622|29.66| 0.00| 41| 29| 60|23| 16| 25| |12| 102|29.91| 0.10| 43| 42| 98|31| 17| 26| 431|29.52| 0.00| 44| 34| 68|24| 16| 29| 979|29.68| 0.00| 49| 33| 54|20| 14| 24| |15| 21|29.70| 0.78| 50| 49| 98|31| 23| 39| 420|29.50| 0.00| 47| 33| 58|25| 16| 27| 269|29.69| 0.00| 51| 33| 49|23| 20| 30| |18| 0|29.59| 0.05| 55| 54| 99|30| 15| 25| 9|29.53| 0.00| 42| 31| 64|23| 10| 20| 18|29.72| 0.00| 46| 32| 59|23| 12| 23| |21| 0|29.58| 0.00| 49| 48| 98|32| 14| 22| 0|29.60| 0.00| 39| 26| 61|14| 17| 21| 0|29.76| 0.00| 41| 31| 66|26| 11| 17| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.13 | 0.20 | 0.27 | 0.32 | 0.40 | 0.49 | 0.55 | 0.59 | 0.62 | 0.66 | 0.83 | 0.97 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1706 | 1706 | 1710 | 1708 | 1710 | 1713 | 1723 | 1723 | 1747 | 1817 | 1710 | 1720 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ The precipitation amounts for the indicated time intervals may occur at any time during the month. The time indicated is the ending time of the interval. Date and time are not entered for trace amounts.
OBSERVATIONS AT 3-HOUR INTERVALS
April 2018: Blue Hill Meteorological Observatory
+--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 19 | APR 20 | APR 21 | | | | | |00| 0|29.78| 0.00| 38| 30| 73|28| 10| 14| 0|29.85| 0.00| 35| 31| 84|19| 13| 22| 0|30.26| 0.00| 35| 27| 74|27| 9| 15| |03| 0|29.73| 0.00| 38| 31| 75|25| 11| 16| 0|29.88| 0.00| 33| 28| 85|17| 14| 25| 0|30.27| 0.00| 33| 27| 77|23| 10| 17| |06| 7|29.74| 0.00| 37| 32| 81|24| 6| 15| 135|29.95| 0.00| 32| 28| 83|18| 15| 23| 135|30.31| 0.00| 34| 27| 77|23| 9| 16| |09| 58|29.71| 0.00| 34| 32| 94|24| 2| 4| 712|30.00| 0.00| 41| 31| 65|05| 20| 35| 682|30.30| 0.00| 47| 27| 46|27| 12| 30| |12| 160|29.69| 0.00| 37| 36| 95|25| 3| 8| 359|30.03| 0.00| 47| 31| 53|04| 22| 30| 933|30.26| 0.00| 53| 28| 37|26| 14| 25| |15| 56|29.70| 0.00| 38| 36| 93|25| 7| 11| 250|30.07| 0.00| 49| 30| 48|04| 15| 26| 617|30.20| 0.00| 58| 25| 28|20| 12| 19| |18| 23|29.75| 0.00| 39| 36| 92|27| 9| 17| 26|30.16| 0.00| 44| 29| 54|04| 18| 29| 35|30.22| 0.00| 54| 23| 29|27| 12| 17| |21| 0|29.82| 0.00| 37| 35| 92|28| 11| 18| 0|30.25| 0.00| 39| 28| 64|17| 14| 25| 0|30.29| 0.00| 48| 22| 35|32| 10| 16| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 22 | APR 23 | APR 24 | | | | | |00| 0|30.33| 0.00| 44| 21| 40|30| 9| 11| | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 25 | APR 26 | APR 27 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 28 | APR 29 | APR 30 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------------------------------------------+---------------------------------------+---------------------------------------+
WEATHER NOTES SUMMARY BY HOURS
+--+-----------------------------+---------+ Wind Direction: Directions are those from which the wind is blowing, | | Averages | | indicated in tens of degrees from true North: i.e., 09 for East, 18 for | +----+------+---+---+---+-----+Resultant| South, 27 for West, and 00 or 36 for North. | | | | | | | | | Wind Speed: The observed one-minute average speed in miles-per-hour. | | | | T | | | | Wind | Wind Gust: The maximum instantaneous wind speed for the ten minute-period | | | | e | | % | W +----+----+ preceding the observation. | | | | m | D | | i | D | | Rainfall Rate: The instantaneous rainfall rate at time of observation, | | S | P | p | e | H | n | i | | calculated by timing consecutive 0.01" pulses from the electronic rain | | u | r | e | w | u | d | r | | gauge and interpolating this rate for one hour. | | n | e | r | | m | | e | | | | s | s | a | P | i | S | c | S | | H| h | s | t | o | d | p | t | p | | o| i | u | u | i | i | e | i | e | | u| n | r | r | n | t | e | o | e | | r| e | e | e | t | y | d | n | d | +--+----+------+---+---+---+-----+----+----+ |00| 0|29.984| 36| 28| 75| 11.3| 20 | 0.6| |03| 0|29.958| 35| 28| 77| 12.4| 20 | 4.3| |06| 37|29.981| 34| 28| 77| 11.3| 20 | 6.6| |09| 384|29.989| 40| 30| 70| 12.6| 22 | 2.4| |12| 487|29.956| 44| 31| 64| 12.3| 10 | 0.7| |15| 236|29.915| 45| 32| 65| 12.2| 34 | 0.4| |18| 13|29.937| 42| 30| 66| 11.8| 14 | 1.8| |21| 0|29.975| 38| 29| 72| 11.6| 22 | 2.6| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
April 2018: Blue Hill Meteorological Observatory
---+-----------------------------------------------------------+-----------------------------------------------------------+--- | | | D| A.M. Hour Ending at | P.M. Hour Ending at |D a| | |a t+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+t e| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |e ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- 01| | | | | | | | | | | | | | | | | | | | | | | | |01 02| | | | | | | | | | | |0.07|0.06|0.02| | | | | | | | | | |02 03| | | | | | | | | | | | | |0.02|0.11|0.06|0.07|0.11|0.02|0.05|0.02|0.01| |0.01|03 04| | | | | |0.01| | | | | | | | |0.08|0.10| |0.01| | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | |0.10|0.05|0.04| | |0.01| |06 07| | | | | | | |0.01| | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | |0.01| | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | |0.06| | | | |12 13|0.01| | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | |0.01|0.07| |0.02|15 | | | | | | | | | | | | | | | | | | | | | | | | | 16|0.01|0.02|0.03|0.02|0.05|0.10|0.11|0.12|0.05|0.04|0.08|0.12|0.12|0.24|0.26|0.18|0.32|0.30|0.07| | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | |0.01|0.06|0.05|0.02|0.03|0.04|0.04|0.01| |0.02| |0.01| | | | |0.01| |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.02|0.02|0.03|0.02|0.05|0.11|0.12|0.19|0.10|0.06|0.11|0.23|0.22|0.29|0.45|0.37|0.39|0.53|0.14|0.15|0.03|0.08|0.02|0.03|Sum ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- During a frozen precipitation event, hourly precipitation totals may not be recorded. In this case, daily amounts are typically entered in the last column (hour ending at 12 A.M.)