BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, NOVEMBER 14, 2007 
ALL TIMES ARE IN EASTERN STANDARD TIME
 
TEMPERATURES REACH UPPER 50'S WITH INCREASING SOUTH WINDS
 
Increasing south winds were gusting just over 35 MPH by
early this afternoon and temperatures had risen to the
upper 50's under bright sunshine through just some high thin 
cloudiness. The early morning low temperature of 41 degrees
was above a temperature inversion which featured sub-freezing
20's and low 30's in the surrounding lowland areas. 
 
Today's observations:
 
7 A.M.   
Weather: High thin cirrus cloudiness, some in dense patches
Patches of thin ground fog below inversion, few distant dense patches  
Temperature: 44F, Dew point: 32F, Wind: S at 14 kts 
Sea-level pressure: 29.99 inches Hg, steady
Visibility: 30 miles, 45 miles above inversion WNW  
6-hour min temp: 41F
24-hour rainfall: 0.06 inch
BHO SA 1155 200 SCT 250 –SCT 300 –BKN 30 157/44/32/1814/999/ 
FEW ACSL PTCHS DNS CI W-NNE PTCHS THN GF BLO SMT/INVSN 
FEW DSNT DNS PTCHS VSBY WNW 45 ABV INVSN/ 8/042 50005 70006 
10044 20041 
  
10 A.M.   
Weather: Thin broken cirrus  
Temperature: 52F, Dew point: 43F, Wind: S at 18G24 kts
Sea-level pressure: 29.96 inches Hg, falling   
Visibility: 30 miles, hazy  
BHO SA 1455 250 –SCT 300 –BKN 30 147/52/43/1818G24/996/ 
PTCHS LWR DNS CI/CC THN K ALG HRZN SW-N HAZY/ 8/002 56010
 
1 P.M.   
Weather: Thin broken cirrus 
Temperature: 57F, Dew point: 44F, Wind: S at 21G31 kts
Wind: Peak wind 31 kts S at 48 past the hour 
Sea-level pressure: 29.88 inches Hg, falling 
Visibility: 25 miles, hazy
6-hour max. temp. 57F 
BHO SA 1755 300 –BKN 25 120/57/44/1721G31/988/ FEW CUFRA/CU SE-W 
FEW AC DSNT NW-N NMRS CNTRLS HAZY PK WND 1831/48/ 8/141 56027 10057 
20044 
 
WEATHER SUMMARY FOR TUESDAY, NOVEMBER 13
 
TEMPERATURE (DEGREES F)
MAX.....55    NORMAL.....50 
MIN.....42    NORMAL.....35
MEAN....49    NORMAL.....43
DEPARTURE FROM 30-YEAR NORMAL..........+ 6 
TOTAL DEPARTURE FOR THE MONTH..........-35 [-2.9 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............16  DEPARTURE......- 6
TOTAL HEATING UNITS FOR THE MONTH...........299  DEPARTURE......+34 [corrected] 
TOTAL HEATING UNITS FOR THE SEASON..........645  DEPARTURE.....-211
TOTAL HEATING UNITS LAST SEASON TO DATE.....747  DIFFERENCE....-102
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............28 S   AT  2:59 A.M.   
                   AEROVANE.............28 S   AT  2:59 A.M.  
                   ASOS.................26 S   AT  2:59 A.M.   
                   DAVIS................32 S   AT  2:58 A.M.   
FASTEST MILE FOR YESTERDAY..............20 SSE AT  1:20 A.M.      
MAXIMUM 2-MINUTE ASOS AVERAGE...........20 S   AT  2:39 A.M.   
MAXIMUM 2-MINUTE DAVIS AVERAGE..........22 S   AT  3:01 A.M.   
AVERAGE WIND SPEED AND DIRECTION...... 11.8 W  
                   ASOS................11.6 
                   DAVIS...............12.1 WSW [240 deg]    
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.06  DEPARTURE....-0.10
                         ASOS..............0.06 
TOTAL PRECIPITATION FOR THE MONTH..........2.19  DEPARTURE....+0.19 
                         ASOS..............2.20  [corrected]   
TOTAL PRECIPITATION FOR THE YEAR..........37.73  DEPARTURE....-6.29
                         ASOS.............37.03  
 
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.....-1.0
TOTAL SNOWFALL FOR THE SEASON...............0.0  DEPARTURE.....-1.2
 
PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 2007...CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
 
AERO: Aerovane recording wind system when significant
TSTM: Thunderstorm day
....: Data not yet available
 
11/1  66/42/54/+7/0/050/08     37 S
11/2  50/37/44/-2/0/446/73     29 NE
11/3  46/40/43/-3/0.95/000/00  51 N   Aero 50 MPH NNW  
11/4  54/37/46/0/0/503/82      33 W   Aero 33 MPH W    
11/5  56/40/48/+3/0/483/79     29 SE
11/6  53/37/45/0/0.75/000/00   35 SSE Aero 35 MPH SSE  
11/7  50/32/41/-4/0/551/91     30 W 
11/8  43/28/36/-8/0/494/82     22 W
11/9  44/32/38/-6/N/A/331/55   21 NNE
11/10 39/28/34/-10/N/A/383/64  32 N
11/11 42/24/33/-10/0/590/99    23 WNW
11/12 42/27/35/-8/0.02/024/04  25 SSE
11/13 55/42/49/+6/0.33/308/52  28 S
 
11/14 morning low temp. 41F; normal low is now 35F
 
       
NEW DAILY RECORDS FOR NOVEMBER 2007: NONE
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
  
RECORDS FOR NOVEMBER 14
HIGH 70 IN 1993
LOW 11 IN 1905
PRECIP 1.87 IN 1972
SNOWFALL 3.5 IN 1997
PEAK GUST 63 W IN 2003
 
RECORDS FOR NOVEMBER 15
HIGH 74 IN 1993
LOW 15 IN 1933
PRECIP 1.66 INCHES IN 1981
SNOWFALL 4.0 IN 1967
PEAK GUST 58 NNW IN 1962// NW IN 1967
 
TODAY'S REPORT PREPARED By: Robert Skilling