BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, FEBRUARY 24, 2008  
ALL TIMES ARE IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M.
Weather: Scattered stratocumulus
Temperature: 16F, Dew point: 11F, Wind: WNW at 8 kt 
Sea-level pressure: 30.08 inches Hg, rising
Visibility: 45 miles
6-hour min temp: 15F
BHO SA 1155 E30 SCT 45 186/16/11/2908/008/ CLR S-NW HAZY/ 8/400 4/006 53015 
10021 20015
 
10 A.M.
Weather: Clear
Temperature: 28F, Dew point: 14F, Wind: WNW at 10G14 kt 
Sea-level pressure: 30.10 inches Hg, rising
Visibility: 35 miles
BHO SA 1455 CLR 35 194/28/14/2910G14/010/ FEW CI DSNT E-SE HAZY/ 8/001 51008
 
1 P.M.  
Weather: Clear
Temperature: 35F, Dew point: 14F, Wind: W at 12G17 kt 
Sea-level pressure: 30.05 inches Hg, falling
Visibility: 40 miles
6-hour max. temp: 35F
BHO SA 1755 CLR 40 176/35/14/2812G17/005/ 8/000 58018 10035 20016
 
WEATHER SUMMARY FOR SATURDAY, FEBRUARY 23
 
TEMPERATURE (DEGREES F)
MAX.....31    NORMAL.....38
MIN.....21    NORMAL.....22
MEAN....26    NORMAL.....30
DEPARTURE FROM 30-YEAR NORMAL...........-4 
TOTAL DEPARTURE FOR THE MONTH..........+75 [+3.1 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............39  DEPARTURE.......+4
TOTAL HEATING UNITS FOR THE MONTH...........782  DEPARTURE......-80 
TOTAL HEATING UNITS FOR THE SEASON.........4019  DEPARTURE.....-379 
TOTAL HEATING UNITS LAST SEASON TO DATE....3918  DIFFERENCE....+101  
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............21 NNW AT 12:12 A.M. 
                   AEROVANE.............21 NNW AT 12:15 A.M.      
                   ASOS.................20 NNW AT 12:18 A.M.  
                   DAVIS................19 NW  AT 12:11 A.M.           
FASTEST MILE FOR YESTERDAY..............15 NNW AT 12:13 A.M. 
MAXIMUM 2-MINUTE ASOS AVERAGE...........16 NNW AT 12:18 A.M.   
MAXIMUM 2-MINUTE DAVIS AVERAGE..........15 NNW AT 12:17 A.M.     
AVERAGE WIND SPEED AND DIRECTION.......7.5 NW   
                   ASOS................7.2  
                   DAVIS...............7.2 NW [309 DEG] 
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M...TRACE   DEPARTURE......-0.15   
                         ASOS..............0.00 
TOTAL PRECIPITATION FOR THE MONTH..........7.76   DEPARTURE......+4.45 
                         ASOS..............N/A #  
TOTAL PRECIPITATION FOR THE YEAR..........11.63   DEPARTURE......+3.54 
                         ASOS..............N/A #
 
# ASOS PRECIPITATION DATA ERROR ON 2/13/08
  MONTHLY AND 2008 ASOS TOTAL NOT AVAILABLE
 
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M........TRACE  DEPARTURE.....-0.5
TOTAL SNOWFALL FOR THE MONTH...............15.1  DEPARTURE.....+1.6 
TOTAL SNOWFALL FOR THE SEASON..............59.2  DEPARTURE....+16.3 
 
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, records not finalized
 
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/+13/0.88/0/000/00    36 NE   Aero 33 MPH NE  TSTM
2/7  34/26/30/+3/0.59/1.9/000/00   40 NE   Aero 40 MPH NE  TSTM
2/8  28/24/26/-1/0.08/0.5/000/00   21 W
2/9  36/21/29/+2/0.09/1.0/118/19   30 ESE
2/10 40/11/26/-1/0.08/0.9/068/11   56 W    Aero 61 MPH W  
2/11 22/7/15/-12/0/0/612/98        56 W    Aero 60 MPH W
2/12 26/9/18/-10/0.27/2.0/351/56   25 W  
2/13 53/22/38/+10/2.80/1.0/000/00  52 S    Aero 54 MPH S 
2/14 36/26/31/+3/0/0/517/82        39 WNW
2/15 46/24/35/+7/0/0/406/64        47 W    Aero 50 MPH W   
2/16 29/16/23/-5/0/0/586/92        32 W
2/17 44/18/31/+2/0.02//0/415/65    43 SSE  Aero 43 MPH SSE  
2/18 59/37/48/+19/0.55/0/006/01    69 S    Aero 70 MPH S  
2/19 43/22/33/+4/0.02/0.2/600/93   44 SSW  Aero 46 MPH SSW
2/20 28/18/23/-6/0/0/.../..        36 W
2/21 29/14/22/-7/0/0/650/100       28 W 
2/22 29/18/24/-6/.../../000/00     28 N    
2/23 31/21/26/-4/.../../.../..     21 NNW
 
NEW DAILY RECORDS FOR FEBRUARY 2008:
 
2/13 - New record daily precipitation 2.80 inches; 
surpasses previous record of 1.90 inches in 1966
 
2/18 - New record peak wind gust of 69 MPH S; 
surpasses 65 MPH (estimated) NNW in 1952
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR FEBRUARY 24
HIGH 68F IN 1985 [RECORD FOR MONTH]
LOW -11F IN 1894
PRECIP 3.10 INCHES IN 1969
SNOWFALL 27.4 INCHES IN 1969 [HIGHEST CALENDAR DAY AMOUNT ON RECORD]
PEAK GUST 63 MPH NE IN 1998
 
RECORDS FOR FEBRUARY 25
HIGH 67F IN 1976
LOW -10F IN 1894
PRECIP 2.40 INCHES IN 1981
SNOWFALL 13.6 INCHES IN 1966
PEAK GUST 75 MPH S IN 1965

TODAY'S REPORT PREPARED By: Andrew Hoell