BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, MARCH 6, 2008
ALL TIMES ARE IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M.
Weather: Thin broken cirrus
Temperature: 29F, Dew point: 23F, Wind: WNW at 12 kts
Sea-level pressure: 30.13 inches Hg, rising
Visibility: 60 miles
6-hour min temp: 27F  
24-hour rainfall: 0.21 inch
BHO SA 1155 250 –BKN 60 202/29/23/3012/013/ PTCHS DENS CI/ 
8/002 51019 MANUAL 70021 ASOS 70025 10031 20027
 
10 A.M.
Weather: Scattered cirrostratus, thin broken cirrus
Temperature: 38F, Dew point: 21F, Wind: NW at 4 kts
Wind: Light and variable
Sea-level pressure: 30.21 inches Hg, rising
Visibility: 70 miles 
BHO SA 1455 220 SCT 250 -BKN 300 –BKN 70 230/38/21/3204/021/ 
WND LGT AND VRB/ 8/006 51028
 
1 P.M.  
Weather: Thin broken cirrus 
Temperature: 45F, Dew point: 24F, Wind: ESE at 4 kts 
Wind: Light and variable
Sea-level pressure: 30.21 inches Hg, rising
Visibility: 70 miles
6-hour max. temp: 45F
BHO SA 1755 250 SCT 300 –BKN 70 231/45/24/1104/021/ 
WND LGT AND VRB/ 8/001 53001 10045 20029
 
 
WEATHER SUMMARY FOR WEDNESDAY, MARCH 5
 
TEMPERATURE (DEGREES F)
MAX.....57    NORMAL.....41
MIN.....33    NORMAL.....25
MEAN....45    NORMAL.....33
DEPARTURE FROM 30-YEAR NORMAL..........+12 
TOTAL DEPARTURE FOR THE MONTH..........+24 [+4.6 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............20  DEPARTURE.......-12
TOTAL HEATING UNITS FOR THE MONTH...........139  DEPARTURE.......-26 
TOTAL HEATING UNITS FOR THE SEASON.........4387  DEPARTURE......-348 
TOTAL HEATING UNITS LAST SEASON TO DATE....4239  DIFFERENCE.....+148  
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............45  S  AT 11:29 A.M.   
                   AEROVANE.............47  S  AT 11:11 A.M.  
                   ASOS.................46  S  AT 11:30 A.M.   
                   DAVIS................49  S  AT 11:11 A.M.     
FASTEST MILE FOR YESTERDAY..............36  S  AT 11:10 A.M.   
MAXIMUM 2-MINUTE ASOS AVERAGE...........33 SSW AT 12:16 P.M.   
MAXIMUM 2-MINUTE DAVIS AVERAGE..........34 SSW AT  2:03 P.M.   
AVERAGE WIND SPEED AND DIRECTION......22.5 WSW
                   ASOS...............21.2    
                   DAVIS..............21.6 SSW [202 deg]  
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.21   DEPARTURE......+0.06  
                         ASOS..............0.25 
TOTAL PRECIPITATION FOR THE MONTH..........1.06   DEPARTURE......+0.31 
                         ASOS..............1.04  
TOTAL PRECIPITATION FOR THE YEAR..........13.10   DEPARTURE......+3.51
                         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.....+0.7 
TOTAL SNOWFALL FOR THE SEASON..............63.3   DEPARTURE....+15.4 
 
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  morning low temp. 27F; 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 6
HIGH 66 IN 1894
LOW 3 IN 1948, 2007
PRECIP 1.85 INS. IN 2001
SNOWFALL 15.5 INS. IN 2001
PEAK GUST 82 MPH S IN 1959
 
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
 
TODAY'S REPORT PREPARED By: Stephanie Radner