Wednesday, November 30, 2022

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

WEDNESDAY, NOVEMBER 30, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0653E
SUNSET:  1613E

OVERCAST AND VERY WINDY AS RAIN APPROACHES FROM THE WEST….

Today featured overcast skies as pressure drops by over 10
millibars during the 6-hour period of observation. We
experienced a max gust of 42 mph from the south shortly
before 1 P.M. Wind is steady around 25 mph.

Visibility is limited to 40 miles by fog today, as dew points
jump into the low 50’s. Rain is approaching from the west on radar.

The high so far today is 56F, which is 11 degrees above the
normal maximum of 45F. The low since midnight is 34F, which is
5 degrees below the normal low of 29F.

Conditions are much milder as we are in the warm sector of the
approaching cold front!

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Today’s Observations:

7 A.M.
Weather: Overcast stratus
Temperature: 40F; Dew Point: 33F; Relative Humidity: 76%
Wind: SE @ 12G17 kts
Sea-level pressure: 1022.0 mb; 30.18 in. Hg: falling, then more slowly
Visibility: 40 miles, haze
6-hr Max temp: 40F
6-hr Min temp: 37F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
BHO SA 1155 30 OVC 40 220/40/33/1312G17/018/ HAZY/ 8/6// 56019 10040 20037

10 A.M.
Weather: Overcast stratus, very light rain beginning around
9:55 A.M.
Temperature: 44F; Dew Point: 40F; Relative Humidity: 85%
Wind: SE @ 13G21 kts
Sea-level pressure: 1019.2 mb; 30.09 in. Hg: falling, then more rapidly
Visibility: 40 miles, thin fog
3-hr Precip:  Trace
3-hr Snowfall: 0.0 ins.
BHO SA 1455 30 OVC 40 192/44/40/1313G21/009/ R-B55 PCPN VRY LGT THN F
ALQDS/ 8/6// 58028 6000/

1 P.M.
Weather: Overcast stratus
Temperature: 55F, Dew point: 51F; Relative Humidity: 86%
Wind: S @ 21G36 kts, peak of 42 mph S at 12:55 P.M.
Sea-level pressure: 1010.8 mb; 29.85 in Hg: falling rapidly
Visibility: 20 miles, thin fog
6-hr Max temp: 56F
6-hr Min temp: 36F
6-hr Precip:  Trace
6-hr Snowfall: 0.0 ins.
BHO SA 1755 30 OVC 20 108/55/51/1821G36/985/ THN F ALQDS PRESFR PK
WND 1836/55/ 8/6// 58084 6000/ 10056 20036

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SUMMARY FOR TUESDAY, NOVEMBER 29, 2022

TEMPERATURE (DEGREES F)
MAX…….41   NORMAL…..45
MIN…….28   NORMAL…..30
MEAN……35   NORMAL…..38

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………-3
TOTAL DEPARTURE FOR THE MONTH……………….+130 [+4.3 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………30  DEPARTURE……..+2
TOTAL HEATING UNITS FOR THE MONTH…………..538  DEPARTURE……-126
TOTAL HEATING UNITS FOR THE SEASON………….951  DEPARTURE……-225
TOTAL HEATING UNITS LAST SEASON TO DATE……..973  DEPARTURE…….-22

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….23 N   @  3:59 A.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..23     @  3:59 A.M.
DAVIS #2 ………………21 N   @  4:00 A.M.
RMY #2 (Instantaneous)…..21 N   @  3:59 A.M.
VECTOR #1……OUT OF SERVICE D/T RENOVATIONS
DAVIS #1…….OUT OF SERVICE D/T RENOVATIONS
RMY #1………OUT OF SERVICE D/T RENOVATIONS
MERLIN………OUT OF SERVICE D/T RENOVATIONS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………14 N   @ 12:32 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..14     @ 12:29 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………14 S   @ 10:48 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..14 N   @ 12:29 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE….OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE RMY #1 AVERAGE……OUT OF SERVICE D/T RENOVATIONS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….7.4 N [177 total miles] VECTOR #2……………..7.9
DAVIS #2………………7.8 NNE
RMY #2………………..8.0 NNE
RMY #1……….OUT OF SERVICE D/T RENOVATIONS
VECTOR #1…….OUT OF SERVICE D/T RENOVATIONS
DAVIS #1……..OUT OF SERVICE D/T RENOVATIONS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE MONTH…………..2.43 DEPARTURE…..-1.72
TOTAL PRECIPITATION FOR THE YEAR…………..36.11 DEPARTURE….-12.20

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.2
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-1.7
TOTAL SNOWFALL FOR THE SEASON (2022-2023)…..TRACE DEPARTURE……-2.4

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PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST
AERO: Aerovane wind recording system gust
RMY:  R.M. Young wind gust recording system
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M:    Missing data

11/1  61/54/58/+11/0.11/0.0/000/00        21 NW   AERO N/A    RMY 21
11/2  68/50/59/+12/0.00/0.0/598/97        29 N    AERO N/A    RMY 30
11/3  67/48/58/+12/0.00/0.0/597/97        24 WSW  AERO N/A    RMY 24
11/4  70/48/59/+13/0.00/0.0/411/67        38 WSW  AERO N/A    RMY 40
11/5  75/57/66/+20/0.00/0.0/336/55        35 SW   AERO N/A    RMY 36
11/6  74/63/69/+24/0.00/0.0/079/13        40 SW   AERO N/A    RMY 43
11/7  74/49/62/+17/T/0.0/448/74           38 NW   AERO N/A    RMY 42
11/8  53/35/44/-1/0.00/0.0/591/98         32 N    AERO N/A    RMY 32
11/9  52/30/41/-3/0.00/0.0/589/98         27 SW   AERO N/A    RMY 29
11/10 67/41/54/+10/0.00/0.0/586/98        35 WSW  AERO N/A    RMY 38
11/11 69/53/61/+18/0.50/0.0/036/06        56 SSW  AERO N/A    RMY 60
11/12 72/51/62/+19/0.24/0.0/398/67        47 SSW  AERO N/A    RMY 51
11/13 51/36/44/+1/0.08/0.0/000/00         41 NW   AERO N/A    RMY 43
11/14 42/28/35/-7/0.00/0.0/589/100        31 NW   AERO N/A    RMY 32
11/15 41/26/34/-8/0.03/T/423/72           16 NNW  AERO N/A    RMY 16
11/16 56/32/44/+2/0.84/0.0/059/10         40 NW   AERO N/A    RMY 40
11/17 44/32/38/-3/T/T/449/77              37 WNW  AERO N/A    RMY 34
11/18 44/28/36/-5/0.00/0.0/529/91         26 W    AERO N/A    RMY 28
11/19 43/26/35/-6/0.00/0.0/579/100        24 WSW  AERO N/A    RMY 24
11/20 37/25/31/-9/0.00/0.0/548/95         45 WNW  AERO N/A    RMY 48
11/21 37/20/29/-11/0.00/0.0/575/100       39 WNW  AERO N/A    RMY 40
11/22 48/31/40/0/0.00/0.0/574/100         30 WSW  AERO N/A    RMY 31
11/23 49/33/41/+2/0.00/0.0/440/77         28 NW   AERO N/A    RMY 28
11/24 47/29/38/-1/0.00/0.0/553/97         25 SW   AERO N/A    RMY 25
11/25 50/38/44/+5/0.01/0.0/000/00         43 WNW  AERO N/A    RMY 42
11/26 51/32/42/+4/0.00/0.0/567/100        43 NW   AERO N/A    RMY 41
11/27 56/42/49/+11/0.62/0.0/017/03        43 SSW  AERO N/A    RMY 47
11/28 54/33/44/+6/0.00/0.0/…/..         43 W    AERO N/A    RMY 43
11/29 41/28/35/-3/0.00/0.0/…/..         23 N    AERO N/A    RMY 21

11/30 The low since midnight is 34F, the daily normal low is 30F

DAILY RECORDS

11/05/2022: TIED RECORD HIGH MINIMUM OF 57F, ALSO SET IN 1948.

11/06/2022: NEW RECORD HIGH MINIMUM OF 63F,
PREVIOUS RECORD WAS 60F IN 2015
NEW RECORD HIGH MAXIMUM OF 74F,
PREVIOUS RECORD WAS 72F IN 2020

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)

RECORDS FOR NOVEMBER 30
HIGH 67 IN 2006
LOW 6 IN 1891
PRECIP 2.50 INCHES IN 1944
SNOWFALL 10.2 INS IN 1945
PEAK GUST 90 SSW IN 1963

RECORDS FOR DECEMBER 1
HIGH 70 IN 2001
LOW 3 IN 1887
PRECIP 1.46 INS. IN 1917
SNOW 5.7 INS. IN 2019
PEAK GUST 72 MPH NW IN 1964

TODAY’S REPORT PREPARED BY: Benjamin Turner