BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, FEBRUARY 22, 2009
ALL TIMES ARE IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M.
Weather: Overcast altocumulus
Temperature: 28F, Dew point: 26F, Wind: ESE at 14 kt
Sea-level pressure: 30.19 inches Hg, falling
Visibility: 8 miles, hazy
6-hour minimum temperature: 28F
Snow depth on ground: Trace
BHO SA 1155 150 OVC 8 223/28/26/1214/019/
FEW THN SPTS IVOC ALQDS HAZY/ 8/01/ 58014 10030 20028
 
10 A.M.
Weather: Overcast altocumulus; few stratocumulus forming
Temperature: 37F, Dew point: 32F, Wind: ESE at 16G23 kt
Sea-level pressure: 30.11 inches Hg, falling
Visibility: 15 miles, hazy
BHO SA 1455 150 OVC 15 196/37/32/1116G23/011/
FEW SC FRMG ALQDS HAZY/ 8/41/ 58027
 
1 P.M.  
Weather: Overcast with light rain and fog
Temperature: 39F, Dew point: 35F, Wind: E at 12 kt
Sea-level pressure: 29.97 inches Hg, falling
Visibility: 3 miles
6-hour maximum temperature: 41F
6-hour precipitation: Trace
BHO SA 1755 E20 OVC 3RW-F 149/39/35/0812/997/ RB1153/
8/6// 56047 6000/ 10041 20028
 
 
WEATHER SUMMARY FOR SATURDAY, FEBRUARY 21
 
TEMPERATURE (DEGREES F)
MAX.....37    NORMAL.....38
MIN.....23    NORMAL.....21
MEAN....30    NORMAL.....29
 
DEPARTURE FROM 30-YEAR NORMAL.................+1
TOTAL DEPARTURE FOR THE MONTH................+49 [+2.1 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY.............35  DEPARTURE.........-1
TOTAL HEATING UNITS FOR THE MONTH............738  DEPARTURE........-53
TOTAL HEATING UNITS FOR THE SEASON..........4306  DEPARTURE........-21
TOTAL HEATING UNITS LAST SEASON TO DATE.....3939  DIFFERENCE......+367
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............42 W AT 8:10 A.M.
                   AEROVANE.............37 W AT 8:29 A.M.
                   ASOS.................39 W AT 8:10 A.M.
                   DAVIS................36 W AT 8:29 A.M.
FASTEST MILE FOR YESTERDAY..............27 W AT 8:30 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE...........26 W AT 8:30 A.M.      
MAXIMUM 2-MINUTE DAVIS AVERAGE..........26 W AT 8:30 A.M.     
                   AVERAGE............17.1 WSW
                   ASOS...............16.9
                   DAVIS..............15.0 WSW [247 DEGREES]
 
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...........1.34  DEPARTURE.........-1.67
                         ASOS...............1.28
TOTAL PRECIPITATION FOR THE YEAR............5.50  DEPARTURE.........-2.29
                         ASOS...............6.48 #
# Includes erroneous ASOS precipitation data on 1/1/09 and 1/2/09
 
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0   DEPARTURE.........-0.5
TOTAL SNOWFALL FOR THE MONTH................8.5   DEPARTURE.........-4.0
TOTAL SNOWFALL FOR THE SEASON..............63.6   DEPARTURE........+21.7
 
PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 2009 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/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
 
2/1  45/15/30/+4/0/0/402/67          35 SW
2/2  50/32/41/+15/0/0/568/94         29 NNW
2/3  33/22/28/+2/0.44/5.6/000/00     39 N    AERO 38 MPH N 
2/4  24/10/17/-9/0.05/0.9/572/94     37 WNW
2/5  17/3/10/-17/0/0/538/88          33 W
2/6  26/4/15/-12/0/0/509/83          26 W
2/7  42/16/29/+2/0/0/314/51          45 S    AERO 44 MPH S
2/8  49/30/40/+13/0/0/433/70         54 W    AERO 54 MPH W
2/9  37/21/29/+2/0/0/621/100         38 WNW  AERO 38 MPH WNW
2/10 36/22/29/+2/0/0/006/01          21 SSE
2/11 59/34/47/+20/0/0/482/77         29 SSE  AERO 24 MPH SSE
2/12 51/37/44/+16/0.13/0/063/10      54 WSW  AERO 54 MPH WSW
2/13 38/24/31/+3/0/429/68            47 W    AERO 47 MPH W
2/14 39/20/30/+2/0/0/595/94          42 W    AERO 40 MPH W
2/15 39/23/31/+3/0/0/637/100         30 NW   AERO 28 MPH NW
2/16 35/21/28/0/0/0/633/99           23 NW   
2/17 35/19/27/-2/0/0/641/100         21 NW 
2/18 41/24/33/+4/0.25/1.6/.../..     33 E    AERO 33 MPH E
2/19 46/24/35/+6/0.34/0.4/.../..     43 W    AERO 44 MPH W
2/20 27/18/23/-6/T/T/.../..          50 W    AERO 48 MPH W
2/21 37/23/30/+1/0/0/.../..          42 W    AERO 37 MPH W
 
NEW DAILY RECORDS FOR FEBRUARY 2009...
 
None to date
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR FEBRUARY 22
HIGH 63F IN 1997
LOW -1F IN 1918
PRECIP 1.38 INCHES IN 1900
SNOWFALL 8.0 INCHES IN 1893
PEAK GUST 74 MPH S IN 1974
 
RECORDS FOR FEBRUARY 23
HIGH 62F IN 1990
LOW -8F IN 1907
PRECIP 1.48 INCHES IN 1967
SNOWFALL 10.6 INCHES IN 1967
PEAK GUST 73 MPH WNW IN 1974
 
TODAY'S REPORT PREPARED By: Andrew Hoell