BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, AUGUST 16, 2009
ALL TIMES ARE IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M.  
Weather: Clear with haze
Temperature: 72F, Dew point: 68F, Wind: SW at 9 kt
Sea-level pressure: 30.18 inches Hg, rising
Visibility: 7 milez
6-hour minimum temp: 68F
BHO SA 1155 CLR 7H 221/72/68/2209/018/
8/000 51010 10072 20068
 
10 A.M.
Weather: Clear
Temperature: 83F, Dew point: 70F, Wind: Light and variable
Sea-level pressure:  30.19 inches Hg, steady
Visibility: 15 miles, hazy
BHO SA 1455 CLR 15 223/83/70/2204/019/
HAZY WND L/V/ 8/000 50002
 
1 P.M.
Weather: Scattered cumulus congestus with towering cumulus
Temperature: 87F, Dew point: 64F, Wind: Light and variable
Sea-level pressure: 30.17 inches Hg, falling
Visibility: 20 miles, hazy
6-hourly max. temp: 88F
BHO SA 1755 50 SCT 20 216/87/64/1206/017/
HAZY TCU NE/ 8/200 58007 10088 20072
 
 
WEATHER SUMMARY FOR SATURDAY, AUGUST 15
 
TEMPERATURE (DEGREES F)
MAX.....88    NORMAL.....79
MIN.....66    NORMAL.....61
MEAN....77    NORMAL.....70
 
DEPARTURE FROM 30-YEAR AVERAGE..........+7
TOTAL DEPARTURE FOR THE MONTH...........+2  [~0 DEGREES/DAY]
 
HEATING DEGREE DATA WILL RESUME IN SEPTEMBER
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY.............18 S   AT  6:47 P.M.
                   AEROVANE..............18 S   AT  6:47 P.M.
                   ASOS..................17 SSW AT  6:47 P.M.     
                   DAVIS.................17 S   AT  6:43 P.M. 
FASTEST MILE FOR YESTERDAY...............14 S   AT  9:57 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE............13 SW  AT 11:45 P.M.      
MAXIMUM 2-MINUTE DAVIS AVERAGE...........13 SSW AT 10:00 P.M.  
AVERAGE WIND SPEED AND DIRECTION........7.9 SW
                   ASOS.................8.0
                   DAVIS................7.3 SW  [219 DEG]
* last of several occurrences
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00   DEPARTURE....-0.13
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........0.84   DEPARTURE....-1.08
                         ASOS..............0.84
TOTAL PRECIPITATION FOR THE YEAR..........32.10   DEPARTURE....+0.77
                         ASOS.............33.22
 
PRELIMINARY CLIMATE SUMMARY FOR AUGUST 2009 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system gust when significant
TSTM: Thunderstorm day (thunder heard some time during day)
....: Data not yet available, records not finalized
 
8/1  83/63/73/+1/0/823/95    18 SSE
8/2  77/64/71/-1/T/104/12    25 SSE
8/3  84/67/76/+4/0/638/74    17 SW
8/4  83/66/75/+3/0/714/83    23 S
8/5  86/67/77/+5/T/378/44    27 SSW  TSTM
8/6  76/61/69/-3/0/564/66    18 SSE
8/7  79/58/69/-2/0/836/98    32 W
8/8  74/55/65/-6/0/791/93    21 WNW
8/9  76/59/68/-3/T/178/21    25 SSE 
8/10 87/66/77/+6/0.12/584/69 27 W    TSTM 
8/11 84/66/75/+4/0.54/684/81 25 NE   TSTM 
8/12 67/63/65/-6/T/000/00    18 N
8/13 66/60/63/-8/0.18/042/05 23 NNE
8/14 83/58/71/+1/0/.../..    16 S
8/15 88/66/77/+7/0/.../..    18 S
 
NEW DAILY RECORDS FOR AUGUST 2009 TO DATE...
NONE
 
DAILY EXTREMES
 
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR AUGUST 16
HIGH 95F IN 1944
LOW 50F IN 1927
PRECIP 1.47 INCHES IN 1926
PEAK GUST 45e MPH N IN 1951
 
RECORDS FOR AUGUST 17
HIGH 97F IN 1944
LOW 48F IN 1902
PRECIP 2.17 INCHES IN 1998
PEAK GUST 50e MPH SSW IN 1952, 50 MPH WNW IN 1962
 
TODAY'S REPORT PREPARED BY: Andrew Hoell