BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, NOVEMBER 12, 2007, VETERAN'S DAY HOLIDAY 
ALL TIMES ARE IN EASTERN STANDARD TIME
 
COLD NOVEMBER CONTINUES--MONTH 3 DEGREES BELOW NORMAL
 
Weekend temperature averaged 10 degrees colder than normal
with the month now 3 degrees on the cold side.  There has
been quite a turn-around in our temperatures since October
when all but six days were on the warm side of normal. This
month so far has had quite the opposite. Only 2 days have been 
warmer than normal out of the first 12 days.
 
Today's observations:
 
7 A.M.   
Weather: Overcast altocumulus, breaks N-E-S and thin spots
in overcast overhead     
Temperature: 29F, Dew point: 18F, Wind: WNW at 7 kts 
Sea-level pressure: 30.31 inches Hg, rising 
Visibility: 35 miles, 50 miles WNW 
6-hour min temp: 27F
BHO SA 1155 E100 OVC 35 263/29/18/3007/031/ HIER CLDS VSB E 
BINOVC N-E-S VSBY WNW 50/ 8/051 52007 10029 20027   
 
10 A.M.   
Weather: Overcast altocumulus with breaks, smoke layers along horizons, 
dark smoke layer NE     
Temperature: 36F, Dew point: 18F, Wind: W at 5 kts
Sea-level pressure: 30.30 inches Hg, falling 
Visibility: 40 miles, 50 miles WNW  
BHO SA 1455 E95 BKN 130 OVC 40 261/36/18/2605/030/ 
BINOVC THN K LYR HRZNS XCPT DRK K LYR NE 
VSBY WNW 50 ABV K LYR/ 8/070 58002
 
1 P.M.   
Weather: Overcast altocumulus with breaks     
Temperature: 41F, Dew point: 20F, Wind: S at 5 kts
Sea-level pressure: 30.24 inches Hg, falling 
Visibility: 45 miles, light haze    
BHO SA 1755 E80 OVC 45 240/41/20/1905/024/ FEW SML CU DSNT E-ESE 
FEW LWR AC NW-N NMRS SML BINOVC OVHD LGE BINOVC E-ESE LGT HZ/
8/13/ 58021 10041 20029
 
WEATHER SUMMARY FOR SUNDAY, NOVEMBER 11, VETERAN'S DAY
 
TEMPERATURE (DEGREES F)
MAX.....42    NORMAL.....51 
MIN.....24    NORMAL.....36
MEAN....33    NORMAL.....43
DEPARTURE FROM 30-YEAR NORMAL..........-10 
TOTAL DEPARTURE FOR THE MONTH..........-33 [-3.2 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............32  DEPARTURE......+10
TOTAL HEATING UNITS FOR THE MONTH...........253  DEPARTURE......+22
TOTAL HEATING UNITS FOR THE SEASON..........599  DEPARTURE.....-213
TOTAL HEATING UNITS LAST SEASON TO DATE.....721  DIFFERENCE....-122
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............23 WNW AT  3:44 P.M. 
                   AEROVANE.............22 WNW AT  3:44 P.M. 
                   ASOS.................22 WNW AT  3:46 P.M. 
                   DAVIS................23 WNW AT  3:45 P.M. 
FASTEST MILE FOR YESTERDAY..............17 WNW AT  3:48 P.M.  
MAXIMUM 2-MINUTE ASOS AVERAGE...........17 WNW AT  3:49 P.M. 
MAXIMUM 2-MINUTE DAVIS AVERAGE..........18 WNW AT  3:49 P.M. 
AVERAGE WIND SPEED AND DIRECTION......10.4 WNW  
                   ASOS...............10.4 
                   DAVIS..............11.0 WNW [300 deg]  
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE....-0.16
                         ASOS..............0.00 
TOTAL PRECIPITATION FOR THE MONTH..........1.84  DEPARTURE....+0.16 
                         ASOS..............1.84  
TOTAL PRECIPITATION FOR THE YEAR..........37.38  DEPARTURE....-6.32
                         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.....-0.8
TOTAL SNOWFALL FOR THE SEASON...............0.0  DEPARTURE.....-1.0
 
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 39/28/34/-10/.../.../..  32 N
11/11 42/24/33/-10/0/.../..    23 WNW
 
11/12 morning low temp. 27F; the 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 12
HIGH 74 IN 1909
LOW 18 IN 1926
PRECIP 3.25 INCHES IN 1947
SNOWFALL 8.1 INCHES IN 1987
PEAK GUST 79e MPH NW IN 1947
 
RECORDS FOR NOVEMBER 13
HIGH 66 IN 1931, 1964
LOW 14 IN 1920
PRECIP 1.96 IN 1982
SNOWFALL 4.6 IN 2004
PEAK GUST 77 S IN 1982
 
TODAY'S REPORT PREPARED By: Robert Skilling