BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, NOVEMBER 8, 2009  
ALL DATA IN EASTERN STANDARD TIME
 
Today's observations:
 
7 A.M.
Weather: Clear, few cirrus NE-SE
Temperature: 47F, Dew point: 43F, Wind: SSW at 14G18 kt
Sea-level pressure: 30.14 inches Hg, rising
Visibility: 30 miles
6-hour minimum temp: 43F
24-hourly precipitation: 0.00 in
BHO SA 1155 CLR 30 207/47/43/2014G18/014/
FEW CI NE-SE/ 8/003 53013 10047 20043
 
10 A.M.
Weather: Clear, few cirrus all quadrants
Temperature: 56F, Dew point: 41F, Wind: SW at 9 kt
Sea-level pressure: 30.18 inches Hg, rising
Visibility: 30 miles
BHO SA 1455 CLR 30 221/56/41/2209/018/
FEW CI ALQDS/ 8/003 51014
 
1 P.M. 
Weather: Clear
Temperature: 64F, Dew point: 41F, Wind: W at 10 kt
Sea-level pressure: 30.19 inches Hg, rising
Visibility: 35 miles  
6-hourly max. temp: 64F 
BHO SA 1755 CLR 35 225/64/41/2810/019/
8/000 53004 10064 20047
 
WEATHER SUMMARY FOR SATURDAY, NOVEMBER 7
 
TEMPERATURE (DEGREES F)
MAX.....49     NORMAL.....52
MIN.....29     NORMAL.....37
MEAN....39     NORMAL.....45
 
DEPARTURE FROM 30-YEAR AVERAGE........... -6
TOTAL DEPARTURE FOR THE MONTH............-15 [-2.1 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............26    DEPARTURE........+6
TOTAL HEATING UNITS FOR THE MONTH...........150    DEPARTURE.......+14
TOTAL HEATING UNITS FOR THE SEASON..........771    DEPARTURE.......+44
TOTAL HEATING UNITS LAST SEASON TO DATE.....650    DIFFERENCE.....+121
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY.............33 S   AT  11:03 P.M.
                   AEROVANE..............33 S   AT  11:03 P.M.
                   ASOS..................33 SSW AT  11:03 P.M.
                   DAVIS.................32 S   AT  10:48 P.M.
FASTEST MILE FOR YESTERDAY...............28 S   AT  10:56 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE............25 SSW AT  10:58 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE...........26 S   AT  10:57 P.M.
AVERAGE WIND SPEED AND DIRECTION.......11.3 S
                   ASOS................11.3
                   DAVIS...............10.7 SSW [215 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 MONTH  ............0.06   DEPARTURE....-0.99
                         ASOS..............0.04
TOTAL PRECIPITATION FOR THE YEAR..........45.17   DEPARTURE....+2.10
                         ASOS.............46.35
                 
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0  DEPARTURE.....-0.1
TOTAL SNOWFALL FOR THE MONTH................0.0  DEPARTURE.....-0.4
TOTAL SNOWFALL FOR THE SEASON...............3.0  DEPARTURE.....+2.4
                                               
PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 2009 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system gust when significant
TSTM: Thunderstorm day (thunder heard some time during day)
....: Data not yet available, records not finalized
 
11/1  58/44/51/+4/0.05/.../.. 22 WNW  
11/2  49/42/46/0/T/.../..     29 NE
11/3  57/36/47/+1/0/.../..    32 W    AERO 32 MPH W    
11/4  49/34/42/-4/0/.../..    24 W
11/5  46/36/41/-4/0.01/.../.. 21 N
11/6  47/31/39/-6/0/.../..    38 WNW  AERO 38 MPH WNW
11/7  49/29/39/-6/0/..../..   33 S
 
NEW DAILY RECORD FOR NOVEMBER 2009
None      
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR NOVEMBER 8
HIGH 72 IN 1938
LOW 20 IN 1921
PRECIP 2.24 INCHES IN 1972
SNOWFALL 4.0 IN 1894
PEAK GUST 72e SE IN 1947
 
RECORDS FOR NOVEMBER 9
HIGH 72 IN 1975
LOW 17 IN 1971
PRECIP 1.37 INCHES IN 1969
SNOWFALL 0.2 IN 1921,1923
PEAK GUST 73e S IN 1943
 
TODAY'S REPORT PREPARED BY: Andrew Hoell