BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, FEBRUARY 8, 2008
ALL TIMES ARE IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M. 
Weather: Obscurement with fog 
Temperature: 26F, Dew point: 26F, Wind: NW at 04 kts
Sea-level pressure: 30.01 inches Hg, falling
Visibility: 1 mile
6-hour min temp: 25F 
6-hour snowfall: 0.1 in.
24-hour precipitation: 0.17 in.
24-hour snowfall: 1.8 in. 
BHO SA 1155 W2 X 1F 163/26/26/3204/001/ TOTAL NEW SNW 
PST 24 HRS 1.8 INS/ 8//// 4/002 55004 MANUAL 600X/ ASOS 60002 
MANUAL 70017 ASOS 70016 10027 20025
 
10 A.M.
Weather: Obscurement with fog, light snow
Temperature: 27F, Dew point: 27F, Wind: NNW at 07 kts 
Sea-level pressure: 30.02 inches Hg, rising
Visibility: 1 1/2 miles  
3-hour precipitation: 0.02 in. 
3-hour snowfall: 0.2 in.
BHO SA 1455 W2 X 11/2S-F 166/27/27/3307/002/ TOTAL NEW SNW 
3 HRS 0.2 INS/ 8//// 50003 MANUAL 6002/ ASOS 60002
 
1 P.M.
Weather: Obscurement with fog, light snow
Temperature: 27F, Dew point: 27F, Wind: NW at 07 kts
Sea-level pressure: 29.94 inches Hg, falling
Visibility: 2 miles  
6-hour max. temp. 27F
6-hour precipitation: 0.04 in.
6-hour snowfall: 0.3 in. 
BHO SA 1755 W3 X 2S-F 139/27/27/3207/994/ TOTAL NEW SNW 
6 HRS 0.3 INS/ 8//// 58027 MANUAL 6004/ ASOS 60005 10027 20025
 
WEATHER SUMMARY FOR THURSDAY, FEBRUARY 7
 
TEMPERATURE (DEGREES F)
MAX.....34    NORMAL.....35
MIN.....26    NORMAL.....19
MEAN....30    NORMAL.....27
DEPARTURE FROM 30-YEAR NORMAL...........+3 
TOTAL DEPARTURE FOR THE MONTH..........+80 [+11.2 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............35  DEPARTURE.......-3
TOTAL HEATING UNITS FOR THE MONTH...........190  DEPARTURE......-82 
TOTAL HEATING UNITS FOR THE SEASON.........3427  DEPARTURE.....-381 
TOTAL HEATING UNITS LAST SEASON TO DATE....3254  DIFFERENCE....+173  
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............40 NE  AT  2:43 A.M.  
                   AEROVANE............ 37 NE  AT  2:43 A.M. *  
                   ASOS.................39 ENE AT  2:44 A.M.    
                   DAVIS................39 NE  AT  2:43 A.M.    
FASTEST MILE FOR YESTERDAY..............33 NE  AT  2:44 A.M.  
MAXIMUM 2-MINUTE ASOS AVERAGE...........31 ENE AT  2:45 A.M.   
MAXIMUM 2-MINUTE DAVIS AVERAGE..........32 ENE AT  2:45 A.M.    
AVERAGE WIND SPEED AND DIRECTION......11.8 N
                   ASOS...............11.7   
                   DAVIS..............11.2 NNE [033 deg]    
 
* last of several occurrences
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.17  DEPARTURE.....+0.02    
                         ASOS..............0.16 
TOTAL PRECIPITATION FOR THE MONTH..........3.07  DEPARTURE.....+2.02
                         ASOS..............3.03  
TOTAL PRECIPITATION FOR THE YEAR...........6.94  DEPARTURE.....+1.11
                         ASOS..............6.99 
  
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........1.8  DEPARTURE.....+1.1
TOTAL SNOWFALL FOR THE MONTH..............  2.1  DEPARTURE.....-2.5 
TOTAL SNOWFALL FOR THE SEASON..............46.2  DEPARTURE....+12.2 
 
PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 2008 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane recording wind system when significant
TSTM: Thunderstorm day
....: Data not yet available
 
2/1   53/26/40/+14/1.16/0.1/000/00  54 SSE  Aero 59 MPH SSE TSTM 
2/2   51/34/43/+17/T/0/391/65       52 SW   Aero 52 MPH SW 
2/3   45/33/39/+13/0/0/381/63       21 SW 
2/4   38/29/34/+8/0/0/006/01        18 SE  
2/5   45/33/39/+12/0.42/0/000/00    36 SE   Aero 37 MPH SE  
2/6   46/34/40/+13/0.88/../000/00   36 NE   Aero 33 MPH NE  TSTM
2/7   34/26/30/+3/.../1.9/000/00    40 NE   Aero 37 MPH NE  TSTM
 
2/8   morning low temp. 25F; our normal low is now 19F
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR FEBRUARY 8
HIGH 60F IN 1933
LOW -9F IN 1934
PRECIP 2.50 INS. IN 1945
SNOWFALL 11.0 INS. IN 1891
PEAK GUST 63e MPH NE IN 1945
 
RECORDS FOR FEBRUARY 9
HIGH 58F IN 1990
LOW -21F IN 1934 [LOWEST TEMPERATURE ON RECORD]
PRECIP 2.12 INS. IN 1969
SNOWFALL 13.0 INS. IN 1969
PEAK GUST 89 MPH NE IN 1969
 
TODAY'S REPORT PREPARED By: Stephanie Radner