BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, NOVEMBER 10, 2007 
ALL TIMES ARE IN EASTERN STANDARD TIME

RAIN SHOWERS OVERNIGHT, COLD AND DRIER TODAY...

Rainfall totaled 0.14 inch in showers from Friday evening
through early Saturday morning, which ended around 5:10 AM.
Lower clouds earlier have thinned to mostly cirrus with 
some cumulus at mid-day.  Winds gusting to 32 mph from the 
N are adding a further chill to the cold temperatures today,
which have only ranged from 32 to 38. The high temperature
for the day may warm another degree or two, but we're not
much warmer than the record low maximum temperatue for the 
date of 34 set in 1914. There was no evidence of the first
snow flakes of the season in the rain showers overnight. 
Visibility has been climbing today up to about 70 miles to
the NW at early afternoon as the dew point has dropped to 20. 

Today's observations:

7 A.M.   
Weather: Scattered stratocumulus, broken altocumulus and
overcast cirrus, with thin spots in the overcast   
Temperature: 33F, Dew point: 28F, Wind: N at 11 kts
Wind: Variable NW to NNE
Sea-level pressure: 30.10 inches Hg, rising 
Visibility: 40 miles 
6-hour min temp: 33F
BHO SA 1155 25 SCT E120 BKN 180 OVC 40 103/33/28/3511/010/ 
THN SPTS IOVC ALQDS HAZY WND 32V02/ 8/571 53014 60/// 70014 
10038 20033
 
10 A.M.   
Weather: Scattered stratocumulus, scattered altocumulus, and
thin overcast cirrus, with a few cumulus fractus  
Temperature: 35F, Dew point: 25F, Wind: N at 12G20 kts
Wind: Variable NW to NNE
Sea-level pressure: 30.12 inches Hg, rising  
Visibility: 60 miles, 40 miles NE-SE  
BHO SA 1455 25 SCT 120 SCT 200 –OVC 60 110/35/25/3512G20/012/ 
FEW CUFRA HAZY VSBY NE-SE 40 WND 31V03/ 8/571 51007

1 P.M.   
Weather: Scattered dense cirrus and thin broken cirrus  
Temperature: 37F, Dew point: 20F, Wind: NW at 10G21 kts
Wind: Variable W to N
Sea-level pressure: 30.06 inches Hg, falling
Visibility: 65 miles, NW 70 and E-SE 45 miles    
6-hourly max. temp: 38F  
BHO SA 1755 200 SCT 250 –BKN 65 090/37/20/3210G21/006/ SC NNE-S 
FEW AC VSBY NW 70 E-SE 45 WND 28V36/ 8/531 56020 10038 20032


WEATHER SUMMARY FOR FRIDAY, NOVEMBER 9

TEMPERATURE (DEGREES F)
MAX.....44    NORMAL.....52 
MIN.....32    NORMAL.....36
MEAN....38    NORMAL.....44
DEPARTURE FROM 30-YEAR NORMAL...........-6 
TOTAL DEPARTURE FOR THE MONTH..........-13 [-1.6 DEGREES/DAY] 

HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............27  DEPARTURE.......+6
TOTAL HEATING UNITS FOR THE MONTH...........190  DEPARTURE......+12
TOTAL HEATING UNITS FOR THE SEASON..........536  DEPARTURE.....-233
TOTAL HEATING UNITS LAST SEASON TO DATE.....700  DIFFERENCE....-164

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............21 NNE AT  8:14 P.M. * 
                   AEROVANE.............22 NNE AT  8:14 P.M.
                   ASOS.................20 NE  AT  8:13 P.M.
                   DAVIS................18 NNE AT  8:11 P.M.
FASTEST MILE FOR YESTERDAY..............14 NNE AT  8:14 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE...........15 NE  AT  8:14 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE..........15 NNE AT  8:14 P.M.
AVERAGE WIND SPEED AND DIRECTION.......8.0 N 
                   ASOS................7.5   
                   DAVIS...............7.0 N {003 deg] 
* Last of several occurrences. 

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.14  DEPARTURE....-0.02
                         ASOS..............0.13 
TOTAL PRECIPITATION FOR THE MONTH..........1.84  DEPARTURE....+0.48 
                         ASOS..............1.84  
TOTAL PRECIPITATION FOR THE YEAR..........37.38  DEPARTURE....-6.00
                         ASOS.............36.67   

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.....-0.6
TOTAL SNOWFALL FOR THE SEASON...............0.0  DEPARTURE.....-0.8


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/.../..     30 W 
11/8  43/28/36/-8/0/.../..     22 W
11/9  44/32/38/-6/.../.../..   21 NNE

11/10  morning low temp. 32F; normal low temp. now 36F

NEW DAILY RECORDS FOR NOVEMBER 2007:

None to date.

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR NOVEMBER 10
HIGH 75 IN 1931
LOW 20 IN 2004
PRECIP 2.11 INCHES IN 1888
SNOWFALL 2.2 IN 1987
PEAK GUST 83e S IN 1942

RECORDS FOR NOVEMBER 11
HIGH 68 IN 1984
LOW 17 IN 1956
PRECIP 1.14 INCHES IN 1991
SNOWFALL 2.5 IN 1986
PEAK GUST 64 NW IN 1962

TODAY'S REPORT PREPARED By: Mike Iacono 

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