BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, NOVEMBER 12, 2005
ALL TIMES ARE IN EASTERN STANDARD TIME

BRIGHT SUNSHINE AND COOL TODAY...COLDEST TEMPERATURE OF
THE SEASON SO FAR THIS MORNING...FRIDAY THE FIRST DAY IN
NOVEMBER TO AVERAGE COLDER THAN NORMAL...NOVEMBER STILL
AVERAGING FIVE DEGREES WARMER THAN NORMAL...
The low temperature this morning of 26 (deg F) is the coldest
of the season to date, but this is well above the record low
of 18 set in 1926.  The mean temperature on Friday of 35 was
eight degrees colder than the average for the date, ending a
streak of twelve straight days above normal.  The sky has been
nearly completely free of clouds today, with high visibility
of 75-80 miles.

Today's observations:

7 A.M.
Weather: Clear, few stratocumulus distant offshore
Temperature: 28F, Dew point: 22F, Wind: WNW 11 mph
Sea-level pressure: 30.23 inches, rising
Visibility: 75 miles
BHO SA 1155 CLR 75 236/28/22/2910/023/ FEW SC DSNT E-SE OFFSHR/
8/500 53017 10028 20026

10 A.M.
Weather: Clear
Temperature: 40F, Dew point: 23F, Wind: WNW 8 mph
Sea-level pressure: 30.27 inches, rising
Visibility: 75 miles
BHO SA 1455 CLR 75 250/40/23/2907/027/ WND LGT/ 51017

1 P.M.
Weather: Clear, few altocumulus distant WSW-NW
Temperature: 48F, Dew point: 14F, Wind: NW 7 mph
Sea-level pressure: 30.24 inches, falling
Visibility: 80 miles
BHO SA 1755 CLR 80 240/48/14/3106/024/ FEW AC DSNT WSW-NW
WND LGT AND VRB/ 8/030 57010 10048 20028


WEATHER SUMMARY FOR FRIDAY, NOVEMBER 11

TEMPERATURE (DEGREES F)
MAX.....41   NORMAL.....51    ASOS.....41 AT 1:39 PM
MIN.....29   NORMAL.....36    ASOS.....28 AT MIDNIGHT PM
MEAN....35   NORMAL.....43
DEPARTURE FROM 30-YEAR NORMAL.......-8
TOTAL DEPARTURE FOR THE MONTH......+59 (+5.2 DEGREES/DAY)

HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY..........30   DEPARTURE.....+8
TOTAL HEATING UNITS FOR THE MONTH.........161   DEPARTURE....-60
TOTAL HEATING UNITS FOR THE SEASON........622   DEPARTURE...-190
TOTAL HEATING UNITS LAST SEASON TO DATE...767   DIFFERENCE..-145

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY.........29 W AT 10:04 A.M.*
                   AEROVANE..........32 W AT 10:04 A.M.
                   ASOS..............29 W AT 10:04 A.M.
                   DAVIS.............30 W AT 10:01 A.M.
FASTEST MILE FOR YESTERDAY...........23 W AT 10:33 A.M.*
MAXIMUM 2-MINUTE ASOS AVERAGE........22 W AT 10:34 A.M.
AVERAGE WIND SPEED AND DIRECTION...13.6 W
                   ASOS............13.2
*LAST OF SEVERAL OCCURRENCES

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..........0.92   DEPARTURE....-0.76
                         ASOS..............0.93
TOTAL PRECIPITATION FOR THE YEAR..........58.54   DEPARTURE...+14.99
                         ASOS.............57.48*
*EXCLUDES 3.19 INCHES OF ERRONEOUS PRECIPITATION RECORDED FROM 1/23-1/28.

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...............1.5   DEPARTURE....+0.5 (CORRECTED)


PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 2005......CALENDAR DAY DATA
DATA REPORTED:
DATE  MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST

AERO: Aerovane recording wind system when significant
TSTM: Thunderstorm day
....: Data not yet available

11/1  70/48/59/+12/0/0/446/72     39 MPH S   Aero 40 MPH S
11/2  56/39/48/+2/T/0/543/88      37 MPH WNW Aero 39 MPH WNW
11/3  62/36/49/+3/0/0/449/73      50 MPH S   Aero 52 MPH S
11/4  69/46/58/+12/0/0/.../..     29 MPH SSE Aero 30 MPH SSE
11/5  71/47/59/+14/0/0/268/44       18 MPH S
11/6  57/49/53/+8/0.25/0/000/00   31 MPH SSW Aero 36 MPH SSW   TSTM
11/7  57/45/51/+6/0.01/0/430/71   47 MPH W   Aero 48 MPH W
11/8  60/42/51/+7/0/0/265/44      35 MPH W   Aero 36 MPH W
11/9  57/34/46/+2/0.20/0/258/43   36 MPH SSE Aero 41 MPH SSE
11/10 58/32/45/+1/0.46/0/.../..   37 MPH W   Aero 44 MPH W
11/11 41/29/35/-8/0/0/.../..      29 MPH W
11/12 ..overnight low 26

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 BY: Mike Iacono