BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, MARCH 3, 2007  
ALL TIMES ARE IN EASTERN STANDARD TIME

WARM AND SUNNY TODAY...FEBRUARY FINISHES COLDER AND
DRIER THAN AVERAGE...WINTER 2006-07 8TH DRIEST ON RECORD...
Warm air has rushed into the area after Friday's storm
brought 1.74 inches of precipitation and 0.4 inch of snow.
The temperature has climbed as high as 57 degrees through
2 PM, which is the highest temperature since 66 and Jan
6th.  Only a trace of old snow and ice remains on the 
summit this morning.  

February 2007 
Temp Max 31.4 deg F (-4.9)
Temp Min 16.1 deg F (-4.2)
Temp Mean 23.8 deg F (-4.5)
HDD: 1147 (+113)
Precipitation: 2.78 inches (-1.28)
Snowfall: 7.3 inches (-8.7)
Mean Wind Speed: 15.4 mph, W
Peak Gust: 61 mph W on 5th

Winter 2006-2007
Temp Max 38.2 deg F (+2.0)
Temp Min 23.4 deg F (+2.7)
Temp Mean 30.8 deg F (+2.3)
Precipitation: 7.96 inches (-5.44), 8th driest on record
Snowfall: 13.9 inches (-28.6), 5th lowest on record


Today's observations:

7 A.M.   
Weather: Scattered cirrus 
Temperature: 40F, Dew point: 27F, Wind: SSW at 13 kts 
Sea-level pressure: 29.72 inches Hg, rising
Visibility: 35 miles 
6-hourly min. temp. 33 deg.
24-hourly precip:  1.36 ins. 
Snow depth: Trace
BHO SA 1155 200 SCT 35 063/40/27/2113/972/ FEW AC W-N THN K LYR 
ALNG HZN SSE-SW FEW PTCHS GF E-S/ 8/071 53014 70136 10040 20033

10 A.M.    
Weather: Scattered altocumulus
Temperature: 49F, Dew point: 30, Wind: S at 8 kts  
Sea-level pressure: 29.70 inches Hg, falling
Visibility: 55 miles
BHO SA 1455 140 SCT 55 056/49/30/1708/970/ FEW CI DSNT ESE-S 
THN K LYR ALNG HZN SSE-NE WND LGT/ 8/071 56007 

1 P.M.    
Weather: Broken altocumulus and cirrus 
Temperature: 54F, Dew point: 25F, Wind: SE at 12G22 kts  
Sea-level pressure: 29.56 inches Hg, falling rapidly
Visibility: 70 miles  
6-hourly max temp: 54 deg.
BHO SA 1755 100 BKN 200 BKN 70 009/54/25/1512G22/956/ FEW LWR 
AC WSW-WNW FEW HIR CI PRESFR WND 12V18/ 8/036 58047 10055 20040

  
WEATHER SUMMARY FOR FRIDAY, MARCH 2

TEMPERATURE (DEGREES F)
MAX.....49    NORMAL.....40 
MIN.....28    NORMAL.....24
MEAN....39    NORMAL.....32																					

DEPARTURE FROM 30-YEAR NORMAL..........+7
TOTAL DEPARTURE FOR THE MONTH..........+6 (+2.8 DEGREES/DAY) 
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY..........26   DEPARTURE........-7
TOTAL HEATING UNITS FOR THE MONTH..........60   DEPARTURE........-7 
TOTAL HEATING UNITS FOR THE SEASON.......4151   DEPARTURE......-486
TOTAL HEATING UNITS LAST SEASON TO DATE..4175   DIFFERENCE......-24
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............48 E  AT 11:58 A.M.      
                   AEROVANE.............45 E  AT 12:12 P.M.      
                   ASOS.................47 E  AT 12:16 P.M.       
                   DAVIS................45 E  AT 11:46 A.M.        
FASTEST MILE FOR YESTERDAY..............37 E  AT 11:52 A.M.     
MAXIMUM 2-MINUTE ASOS AVERAGE...........39 E  AT 11:53 A.M.       
MAXIMUM 2-MINUTE DAVIS AVERAGE..........35 E  AT 11:53 A.M.      
AVERAGE WIND SPEED AND DIRECTION......18.4 ENE  
                    ASOS..............18.1      
                    DAVIS.............16.7 E [102 deg]  

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....1.36  DEPARTURE....+1.21
                         ASOS..............1.40
TOTAL PRECIPITATION FOR THE MONTH..........1.74  DEPARTURE....+1.29  
                         ASOS..............1.75    
TOTAL PRECIPITATION FOR THE YEAR...........7.46  DEPARTURE....-1.83  
                         ASOS..............7.38 

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0  DEPARTURE......-0.5
TOTAL SNOWFALL FOR THE MONTH................0.4  DEPARTURE......-0.6  
TOTAL SNOWFALL FOR THE SEASON..............14.3  DEPARTURE.....-32.1  

    
PRELIMINARY CLIMATE SUMMARY FOR MARCH 2007......CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOWFALL/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST

AERO: Aerovane recording wind system when significant
TSTM: Thunderstorm day
....: Data not yet available

3/1  40/22/31/-1/0/0/.../..          24 NW   Aero 23 MPH NW
3/2  49/28/39/+7/1.74/0.4/0/0        48 E    Aero 45 MPH E

3/3 morning low temp. 33 deg; normal now 24 deg. 
   
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR MARCH 3
HIGH 64 IN 1991
LOW  -1 IN 1950
PRECIP 2.36 INS. IN 1972
SNOWFALL 12.8 INS. IN 1960
PEAK GUST 78e MPH E IN 1942

RECORDS FOR MARCH 4
HIGH 69 IN 1974
LOW  -5 IN 1950  [RECORD LOW FOR MONTH]
PRECIP 1.80 INS. IN 1960
SNOWFALL 17.3 INS. IN 1960
PEAK GUST 81e MPH SSW IN 1971

TODAY'S REPORT By: Mike Iacono

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