BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, MARCH 7, 2008
ALL TIMES ARE IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M.
Weather: Thin broken cirrus
Temperature: 33F, Dew point: 32F, Wind: NNW at 6 kts
Sea-level pressure: 30.29 inches Hg, falling
Visibility: 12 miles, 10 miles N, 15 miles NE
6-hour min temp: 32F  
BHO SA 1155 250 –BKN 12 259/33/32/3306/029/ PTCHS DENS CI 
PTCHS GF ALQDS DRK K LYR ALQDS XCPT NE-SE INVSN PRSNT 
VSBY N 10 NE 15/ 8/002 55001 10033 20032
 
10 A.M.
Weather: Scattered stratocumulus, thin overcast cirrus
Temperature: 40F, Dew point: 32F, Wind: NE at 9 kts
Wind: Variable direction NNW-E
Sea-level pressure: 30.33 inches Hg, rising
Visibility: 18 miles 
BHO SA 1455 10 SCT 250 –OVC 18 272/40/32/0409/033/ 
WND 34V10/ 8/501 53013
 
1 P.M.  
Weather: Scattered stratocumulus, overcast cirrostratus
Temperature: 43F, Dew point: 34F, Wind: NE at 10 kts 
Sea-level pressure: 30.26 inches Hg, falling
Visibility: 20 miles
6-hour max. temp: 44F
BHO SA 1755 10 SCT E220 OVC 20 246/43/34/0410/026/ 
FEW LWR CUFRA DRFTG OVR SMT OVC PTLY THN/ 8/507 58026 
10044 20033 
 
WEATHER SUMMARY FOR THURSDAY, MARCH 6
 
TEMPERATURE (DEGREES F)
MAX.....46    NORMAL.....42
MIN.....27    NORMAL.....25
MEAN....37    NORMAL.....33
DEPARTURE FROM 30-YEAR NORMAL...........+4 
TOTAL DEPARTURE FOR THE MONTH..........+28 [+4.5 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............28  DEPARTURE........-4
TOTAL HEATING UNITS FOR THE MONTH...........167  DEPARTURE.......-22 
TOTAL HEATING UNITS FOR THE SEASON.........4415  DEPARTURE......-352 
TOTAL HEATING UNITS LAST SEASON TO DATE....4293  DIFFERENCE.....+122  
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............27 WSW AT 12:05 A.M.   
                   AEROVANE.............24 WSW AT 12:58 A.M. *  
                   ASOS.................25 W   AT 12:05 A.M.   
                   DAVIS................25 W   AT 12:07 A.M.     
FASTEST MILE FOR YESTERDAY..............19 WSW AT 12:20 A.M. *   
MAXIMUM 2-MINUTE ASOS AVERAGE...........20 W   AT  1:35 A.M.   
MAXIMUM 2-MINUTE DAVIS AVERAGE..........18 W   AT  1:35 A.M.   
AVERAGE WIND SPEED AND DIRECTION.......9.1 SSE
                   ASOS................8.8    
                   DAVIS...............9.2 WSW [249 deg]  
* last of several occurrences
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00   DEPARTURE......-0.15  
                         ASOS..............0.00 
TOTAL PRECIPITATION FOR THE MONTH..........1.06   DEPARTURE......+0.16 
                         ASOS..............1.04  
TOTAL PRECIPITATION FOR THE YEAR..........13.10   DEPARTURE......+3.36
                         ASOS.............15.35 #
# Includes erroneous ASOS precipitation data on 2/13/08.
 
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0   DEPARTURE.....-0.5
TOTAL SNOWFALL FOR THE MONTH................3.2   DEPARTURE.....+0.2 
TOTAL SNOWFALL FOR THE SEASON..............63.3   DEPARTURE....+14.9 
 
PRELIMINARY CLIMATE SUMMARY FOR MARCH 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, records not finalized
 
3/1  37/20/29/-3/0.34/3.2/034/05   38 W     Aero 40 MPH W
3/2  37/23/30/-2/0/0/.../..        40 WNW 
3/3  46/24/35/+3/0/0/.../..        42 S     Aero 43 MPH S 
3/4  58/36/47/+14/0.41/0/089/13    42 S     Aero 43 MPH S
3/5  57/33/45/+12/0.31/0/.../..    45 S
3/6  46/27/37/+4/0/0/.../..        27 WSW   Aero 24 MPH WSW
 
3/7  morning low temp. 31F; our normal low is now 25F
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR MARCH 7
HIGH 66 IN 1946
LOW -1 IN 1890
PRECIP 2.05 INS. IN 1967
SNOWFALL 11.1 INS. IN 1967
PEAK GUST 66 MPH NE IN 1962
 
RECORDS FOR MARCH 8
HIGH 63 IN 1942, 1995
LOW 2 IN 1986
PRECIP 1.73 INS. IN 1933
SNOWFALL 8.3 INS. IN 1941
PEAK GUST 68e MPH NE IN 1941
 
TODAY'S REPORT PREPARED By: Stephanie Radner