BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, MARCH 14, 2007  
ALL TIMES ARE IN EASTERN STANDARD TIME
 
ANOTHER VERY MILD DAY TODAY WITH HIGH TEMPERATURES 
INTO THE MID 60'S
 
The high temperature so far today is 66 degrees.  
After today's warm temperatures and yesterday's 
high of 60 degrees, the month will average only 
about 1 degree colder than normal.
 
Today's observations:
 
7 A.M.   
Weather: Scattered cirrus   
Temperature: 44F, Dew point: 40F, Wind: S at 15 kts 
Sea-level pressure: 30.02 inches Hg, falling 
Visibility: 9 miles, thin fog 
6-hour min. temp. 42 deg. 
BHO SA 1155 250 SCT 9 166/44/40/1715/002/ THN F/ 
8/001 56005 10044 20042
 
10 A.M.   
Weather: Overcast high clouds
Temperature: 58F, Dew point: 43F, Wind: S at 12 kts 
Sea-level pressure: 30.01 inches Hg, falling
Visibility: 10 miles, hazy  
BHO SA 1455 E220 BKN 250 OVC 10 163/58/43/1812/001/ 
DENSE CI PRSNT FEW CUFRA OVHD HAZY/ 8/107 58003
 
1 P.M.   
Weather: Overcast high clouds, halo  
Temperature: 66F, Dew point: 45F, Wind: S at 19G28 kts
Peak wind: S @ 30 kts at 38 past the hour 
Wind: variability ESE to SSW 
Sea-level pressure: 29.93 inches Hg, falling
Visibility: 12 miles, hazy
BHO SA 1755 E220 BKN 250 OVC 12 136/66/45/1719G28/993/ 
THN SPTS IOVC HALO HAZY PK WND 1730/38 WND 12V21/ 
8/007 56027 10066 20044
 
WEATHER SUMMARY FOR TUESDAY, MARCH 13
 
TEMPERATURE (DEGREES F)
MAX.....60    NORMAL.....44 
MIN.....36    NORMAL.....27
MEAN....48    NORMAL.....35
 
DEPARTURE FROM 30-YEAR NORMAL.........+13
TOTAL DEPARTURE FOR THE MONTH.........-33 (-2.3 DEGREES/DAY) 
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY..........17   DEPARTURE.......-13
TOTAL HEATING UNITS FOR THE MONTH.........443   DEPARTURE.......+31 
TOTAL HEATING UNITS FOR THE SEASON.......4534   DEPARTURE......-448
TOTAL HEATING UNITS LAST SEASON TO DATE..4477   DIFFERENCE......+57
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............35 S   AT  6:44 P.M.        
                   AEROVANE.............33 S   AT  2:13 P.M.       
                   ASOS.................32 S   AT  6:45 P.M.       
                   DAVIS................40 S   AT  2:14 P.M.          
FASTEST MILE FOR YESTERDAY..............26 S   AT  7:17 P.M. 
MAXIMUM 2-MINUTE ASOS AVERAGE...........26 S   AT  7:05 P.M.    
MAXIMUM 2-MINUTE DAVIS AVERAGE..........27 S   AT  2:15 P.M.    
AVERAGE WIND SPEED AND DIRECTION........15.8 S 
                    ASOS................15.9     
                    DAVIS.............  14.7 S   [183 deg]  
 
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..........2.00  DEPARTURE.....-0.10  
                         ASOS..............2.01    
TOTAL PRECIPITATION FOR THE YEAR...........7.72  DEPARTURE.....-3.22 
                         ASOS..............7.64  
 
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0  DEPARTURE......-0.4
TOTAL SNOWFALL FOR THE MONTH................0.4  DEPARTURE......-5.4  
TOTAL SNOWFALL FOR THE SEASON..............14.3  DEPARTURE.....-36.9 
 
    
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/-1/0/0/512/76          24 NW   Aero 23 MPH NW
3/2  49/28/39/+7/1.74/0.4/000/00     48 E    Aero 45 MPH E
3/3  58/33/46/+14/0/0/489/72         44 WNW  Aero 43 MPH WNW
3/4  40/26/33/0/0/0/471/69           37 W
3/5  37/19/28/-5/T/T/198/29          58 W    Aero 57 MPH W 
3/6  19/3/11/-22/0/0/667/97 *        57 W    Aero 61 MPH W
3/7  22/2/12/-21/0/0/504/73          28 SW    
3/8  25/5/15/-19/T/T/471/68          51 WNW  Aero 54 MPH WNW
3/9  34/1/18/-16/0/0/668/96 *        25 S     
3/10 49/22/36/+2/0/0/322/46          39 S    Aero 39 MPH S 
3/11 51/33/42/+7/0.26/0/513/73       32 W 
3/12 55/31/43/+8/0/0/423/60          24 SSW 
3/13 60/36/48/+13/0/0/319/45         35 S    Aero 33 MPH S
 
3/14 morning low temp. 42 deg; normal now 27 deg.  
 
* Record low maximum temperature of 19 on the 6th surpasses previous 21 set
  in 1916.
* Record low minimum temperature of 3 on the 6th ties previous 3 set in 1948.
* Record low minimum temperature of 1 on the 9th breaks previous 5 set in
  1885, 1943, and 1996.
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR MARCH 14
HIGH 74 IN 1946
LOW 8 IN 1926
PRECIP 1.72 INS. IN 1984
SNOWFALL 6.7 INS. IN 1958
PEAK GUST 66 MPH WNW IN 1982
 
RECORDS FOR MARCH 15
HIGH 80 IN 1990
LOW 6 IN 1993
PRE 1.33 INS. IN 1972
SNOW 12.0 INS. 1967
WIND 73e MPH ESE IN 1940
 
TODAY'S REPORT By: Stephanie Radner