BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, OCTOBER 19, 2008
ALL TIMES ARE IN EASTERN STANDARD TIME UNLESS NOTED
Today's observations:
8 A.M. EDT
Weather: Scattered stratocumulus, broken altostratus, broken cirrus
Temperature: 38F, Dew point: 32F, Wind: NNW at 15G18 kt
Sea-level pressure: 30.34 inches Hg, rising
Visibility: 90 miles
6-hourly minimum temperature: 37F
24-hourly rainfall: 0.00
BHO SA 1155 30 SCT E100 BKN 200 BKN 90 274/38/32/3515G18/034/
CLR DSNT W-NW/ 8/575 53003 10039 20037
11 A.M. EDT
Weather: Broken stratocumulus, broken stratocumulus, broken cirrus
Temperature: 45F, Dew point: 32F, Wind: N at 18G28 kt
Sea-level pressure: 30.38 inches Hg, rising
Visibility: 80 miles
BHO SA 1455 E30 BKN 100 BKN 200 BKN 80 287/45/32/0118G28/038/
CLR DSNT SW-NW PK WND 0128/1454/ 8/475 51013
2 P.M. EDT
Weather: Broken stratocumulus, broken cirrus
Temperature: 45F, Dew point: 32F, Wind: N at 17G25 kt
Sea-level pressure: 30.37 inches Hg, falling
Visibility: 80 miles
6-hourly maximum temperature: 46F
BHO SA 1755 E30 BKN 200 BKN 80 284/45/32/0117G25/037/
CLR DSNT W-NW PK WND 0128/1734/ 8/405 58003 10046 20038
WEATHER SUMMARY FOR SATURDAY, OCTOBER 18
TEMPERATURE (DEGREES F)
MAX.....51 NORMAL.....60
MIN.....37 NORMAL.....42
MEAN....44 NORMAL.....51
DEPARTURE FROM 30-YEAR NORMAL.............-7
TOTAL DEPARTURE FOR THE MONTH............+27 (+1.3 DEGREES/DAY)
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............25 N AT 10:45 A.M.
AEROVANE.............25 N AT 10:41 A.M.
ASOS.................20 NNE AT 10:49 A.M.
DAVIS................23 N AT 10:09 A.M.
FASTEST MILE FOR YESTERDAY..............18 N AT 10:46 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE...........16 ENE AT 12:03 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE..........17 NE AT 1:03 P.M.
AVERAGE............10.9 NNW
ASOS...............10.9
DAVIS..............11.0 N [9 deg]
* Last of several occurrences
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00 DEPARTURE.......-0.14
ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........0.62 DEPARTURE.......-1.90
ASOS..............0.63
TOTAL PRECIPITATION FOR THE YEAR..........43.52 DEPARTURE.......+3.40
ASOS.............46.11 #
# Includes erroneous ASOS precipitation data on 2/13/08.
PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 2008 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane recording wind system gust when significant
TSTM: Thunderstorm day (thunder heard some time during day)
....: Data not yet available, records not finalized
10/1 68/58/63/+6/0.49/120/17 38 SW TSTM #
10/2 62/46/54/-2/0.12/455/65 45 W
10/3 62/45/54/-2/T/376/54 44 SSW Aero 43 MPH SSW
10/4 61/40/51/-5/0.00/612/88 32 WSW
10/5 53/45/49/-6/T/000/00 18 WNW
10/6 58/39/49/-6/0.00/303/44 28 WNW
10/7 64/37/51/-4/0.00/687/100 23 WNW
10/8 69/43/56/+2/0.00/581/85 32 S Aero 30 MPH S
10/9 72/55/64/+10/0.02/510/75 33 WSW
10/10 69/53/61/+7/0.00/664/98 29 W
10/11 68/49/59/+6/0.00/668/99 20 NNW
10/12 67/47/57/+4/0.00/625/93 21 W
10/13 62/50/56/+4/0.00/308/46 20 NE
10/14 65/50/58/+6/0.00/.../.. 30 SSE
10/15 64/52/58/+6/0.00/.../.. 21 ENE Aero 17 MPH WNW
10/16 67/51/59/+8/T/.../.. 35 NW
10/17 59/42/51/0/0.00/.../.. 26 NW
10/18 51/37/44/-7/0.00/.../.. 25 N
# Thunderstorm gust
NEW DAILY RECORDS FOR OCTOBER
None...
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR OCTOBER 19
HIGH 81F IN 1945
LOW 21F IN 1922
PRECIP 3.64 INCHES IN 1932
SNOWFALL 1.0 INCHES IN 1972
PEAK GUST 66 MPH SSW IN 1967
RECORDS FOR OCTOBER 20
HIGH 78 IN 1965,1984
LOW 24 IN 1972
PRECIP 7.10 INCHES IN 1996 (RECORD FOR MONTH)
SNOWFALL TRACE IN 1934,1943
PEAK GUST 63 MPH W IN 1966
TODAY'S REPORT PREPARED By: Andrew Hoell