BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, NOVEMBER 7, 2011
ALL TIMES ARE IN EASTERN STANDARD TIME
 
WARMING TREND BEGAN YESTERDAY AFTER
11 OUT OF PAST 12 DAYS AVERAGED COLDER THAN NORMAL
SUNSHINE THROUGH SOME HIGH CLOUDS TODAY AS
TEMPERATURES RISE TO NEAR 60S BY EARLY AFTERNOON
 
After almost two weeks, 11 out of 12 days with below
normal temperatures beginning on October 26, a
warming trend began yesterday.  The day averaged
one degree above normal at 46 degrees.
Today the low temperature was 39F early this
morning and a high in the low 60's this afternoon
will make today several degrees warmer than normal. 
High temperature readings over the next several
days should reach the 60's but may not come close
to any of the daily records for the dates.
 
November Record High Max Temperatures:
 
November 7: 75F set in 1938
November 8: 72F set in 1975
November 9: 72F set in 1975
 
Today's observations:
 
7 A.M. 
Weather: Clear, SKC, perfectly clear
Temperature: 41F, Dew point: 37F; Wind: SW at 13 kts
Sea-level pressure: 30.29 inches Hg, steady
Visibility: 25 miles, thin fog below inversion in
all quadrants
6-hour min. temp: 39F
BHO SA 1155 CLR 25 256/41/37/2213/029/ SKC THN F ALQDS BLO INVSN
HVY DEW 55000 10041 20039 
 
10 A.M.
Weather: Clear, few cirrus distant WSW-N
Temperature: 50F, Dew Point: 37F; Wind: WSW at 8 kts,
Wind: Direction variable SSW-W
Sea-level pressure: 30.28 inches Hg, falling 
Visibility: 45 miles, thin smoke layer W-N,
and dark smoke layer, N-NE, visibility WNW 50 miles 
BHO SA 1455 CLR 40 253/50/37/2408/028/ CI DSNT WSW-N
THN K LYR W-N DRK K LYR N-NE VSBY WNW 50 DSNT HZ WND 20V28/
8/001 58003
 
1 P.M. 
Weather: Thin broken cirrus, 2 layers, lower cirrus layer
distant WNW-NW
Temperature: 59F, Dew Point: 36F; Wind: SW at 8 kts,
Wind: Direction variable SSW-W
Sea-level pressure: 30.23 inches Hg, falling
Visibility: 55 miles, light distant haze  
6-hour max. temp: 60F 
BHO SA 1755 250 –SCT 300 –BKN 55 237/59/36/2308/023/ LWR CI DSNT WNW-NW
LGT DSNT HZ WND 20V28/ 8/001 56016 10060 20041
 
WEATHER SUMMARY FOR SUNDAY, NOVEMBER 6
 
TEMPERATURE (DEGREES F)
MAX.....56    NORMAL.....53
MIN.....35    NORMAL.....37
MEAN....46    NORMAL.....45
 
DEPARTURE FROM 30-YEAR NORMAL.....................+1
TOTAL DEPARTURE FOR THE MONTH....................-13 [-2.0 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............19    DEPARTURE.........-1
TOTAL HEATING UNITS FOR THE MONTH...........127    DEPARTURE........+11
TOTAL HEATING UNITS FOR THE SEASON..........553    DEPARTURE.......-154
TOTAL HEATING UNITS LAST SEASON TO DATE.....608    DIFFERENCE.......-55
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY..............24 SSW AT  8:36 P.M.   
                   AERO...................24 SSW AT  8:36 P.M. *  
                   ASOS...................25 SSW AT  8:36 P.M.  
                   DAVIS..................25 SW  AT  8:25 P.M.
THE FASTEST MILE FOR YESTERDAY............21 SW  AT  8:31 P.M. 
MAXIMUM 2-MINUTE ASOS AVERAGE.............21 SW  AT  8:31 P.M.  
MAXIMUM 2-MINUTE DAVIS AVERAGE............20 SW  AT  8:31 P.M.  
AVERAGE WIND SPEED AND DIRECTION........14.0 NNW    
                   ASOS.................14.0 
                   DAVIS................12.8 SW [230 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 THE MONTH  ........0.00 DEPARTURE..........-0.90
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE YEAR..........54.02 DEPARTURE.........+11.10
                        ASOS..............54.45**
**ASOS data is in error due to system failure on 1/12-13/11
 
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0  DEPARTURE.........-0.1
TOTAL SNOWFALL FOR NOVEMER..................0.0  DEPARTURE.........-0.3
TOTAL SNOWFALL FOR THE SEASON...............8.5  DEPARTURE.........+8.0
 
PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 2011 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system gust when significant
RMY:  R.M. Young wind gust recording system added 8/9/2011
TSTM: Thunderstorm day (thunder heard some time during day)
....: Data not yet available, records not finalized
 
11/1  50/38/44/-3/0.00/0.0/286/46/   25 ENE AERO 24 MPH ENE RMY 24
11/2  54/34/44/-2/0.00/0.0/619/100   17 S   AERO 16 MPH S   RMY N/A
11/3  60/40/50/+4/0.00/0.0/.../../   27 WSW AERO 30 MPH WSW RMY 28
11/4  49/33/41/-5/0.00/0.0/.../../   33 NW  AERO 35 MPH NNW RMY 36
11/5  47/29/38/-7/0.00/0.0/.../../   18 NW  AERO 21 MPH NNW RMY 21
11/6  56/35/46/+1/0.00/0.0/.../../   24 SSW AERO 24 MPH SSW RMY 26
 
11/7  our overnight low 39F; the normal low is now 37F
 
DAILY RECORDS FOR NOVEMBER 2011
None to date
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR NOVEMBER 7
HIGH 75 IN 1938
LOW 21 IN 1930
PRECIP 2.02 INCHES IN 1953
SNOWFALL 1.0 IN 1967
PEAK GUST 69e ENE IN 1953
 
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
 
TODAY'S REPORT PREPARED BY: Robert Skilling/Patrick Peters