Saturday, December 3, 2022

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

SATURDAY, DECEMBER 3, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0656E
SUNSET:  1612E

VERY WINDY WITH RAIN BEGINNING IN THE EARLY AFTERNOON….

Today we observed a significant southerly wind with an
average speed of 30 mph. Gusts were frequent above 40 mph
with around 50 mph being the max for the day so far.

Rain began around noon, intensifying as the afternoon went
on. We have quite the deficit to make up for rainfall; it
being around a foot on the year.

The high so far today is 57F, which is 13 degrees above
the normal maximum of 44F. The low since midnight is 36F,
which is 7 degrees above the normal low of 29F.

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PRELIMINARY STATS FOR NOVEMBER 2022

TEMPERATURE, Deg. F
Avg. Max. 55.0 [+4.9] Avg. Min. 37.8 [+4.0] Mean      46.4 [+4.4] 24-hour corrected mean: 45.9

Max. for month: 75F on the 5th
Min. for month: 20F on the 21st

HEATING DEGREE DAYS
Total heating units:    556 [-136] Total for the season:   996 [-235] Total for last season: 1007

COOLING DEGREE DAYS
Total cooling units:    005 [+005] Total for the season:   889 [+212] Total for last season:  717

PRECIPITATION, Inches
Total: 3.39 [-0.92] Greatest in 24 hrs: 0.96 on the 30th

SNOWFALL, Inches
Total: TRACE [-1.8] Greatest in 24 hrs: TRACE on the 15th and 17th

WIND, mph
Avg. uncorrected wind speed: 13.3 mph
Avg. corrected wind speed:   13.6 mph
Prevailing wind direction:    SW [15%] Peak gust and direction:  63 SSE on the 30th

SUNSHINE:
Campbell-Stokes card minutes: 10710 of a possible 17010, or 63%
Astronomical total minutes: 11101 of a possible 17627, or 63%

MFD

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Today’s Observations:

7 A.M.
Weather: Broken stratocumulus, overcast altocumulus
Temperature: 47F; Dew Point: 45F; Relative Humidity: 92%
Wind: S @ 23G28 kts, peak of 34 mph S at 6:10 A.M.
Sea-level pressure: 1023.6 mb; 30.23 in. Hg: falling, then
more slowly
Visibility: 20 miles, thin fog
6-hr Max temp: 47F
6-hr Min temp: 37F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
BHO SA 1155 30 BKN 70 OVC 20 236/47/45/1823G28/023/ THN F ALQDS PK
WND 1830/10/ 8/57/ 56032 10047 20037

10 A.M.
Weather: Broken stratocumulus, overcast altocumulus
Temperature: 55F; Dew Point: 48F; Relative Humidity: 77%
Wind: S @ 26G32 kts, peak of 45 mph S at 9:14 A.M.
Sea-level pressure: 1020.2 mb; 30.12 in. Hg: falling, then more
rapidly
Visibility: 20 miles, thin fog
3-hr Precip:  0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 30 BKN 70 OVC 20 202/55/48/1926G32/012/ THN F ALQDS PK
WND 1939/14/ 8/57/ 58034

1 P.M.
Weather: Overcast stratus, light rain
Temperature: 54F, Dew point: 54F; Relative Humidity: 100%
Wind: SSW @ 28G39 kts, peak of 53 mph SSW at 12:22 P.M.
Sea-level pressure: 1014.7 mb; 29.96 in Hg: falling unsteadily
Visibility: 5 miles, fog
6-hr Max temp: 57F
6-hr Min temp: 47F
6-hr Precip:  0.03 ins.
6-hr Snowfall: 0.0 ins.
BHO SA 1755 30 OVC 5R-F 147/54/54/2028G39/996/ PK WND 2046/22/ 8/7// 57055
6003/ 10057 20047

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SUMMARY FOR FRIDAY, DECEMBER 2, 2022

TEMPERATURE (DEGREES F)
MAX…….44   NORMAL…..44
MIN…….27   NORMAL…..29
MEAN……36   NORMAL…..37

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………-1
TOTAL DEPARTURE FOR THE MONTH…………………-3 [-1.7 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………29  DEPARTURE……..+1
TOTAL HEATING UNITS FOR THE MONTH……………59  DEPARTURE……..+2
TOTAL HEATING UNITS FOR THE SEASON…………1028  DEPARTURE……-232
TOTAL HEATING UNITS LAST SEASON TO DATE…….1053  DEPARTURE…….-25

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….24 SSW @  5:56 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..24     @  5:56 P.M.
DAVIS #2 ………………26 S   @ 10:42 P.M.
RMY #2 (Instantaneous)…..25 SSW @  5:56 P.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………………18 S   @ 10:42 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..18     @  6:11 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………19 S   @ 10:41 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..19 S   @ 10:41 P.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…….10.2 WNW [244 total miles] VECTOR #2……………..10.8
DAVIS #2………………11.0 SW
RMY #2………………..11.0 WSW
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…..-0.17
TOTAL PRECIPITATION FOR THE MONTH…………..0.00 DEPARTURE…..-0.35
TOTAL PRECIPITATION FOR THE YEAR…………..37.07 DEPARTURE….-11.75

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.2
TOTAL SNOWFALL FOR THE MONTH………………..0.0 DEPARTURE……-0.4
TOTAL SNOWFALL FOR THE SEASON (2022-2023)…..TRACE DEPARTURE……-2.9

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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/+6/0.00/0.0/395/70         43 W    AERO N/A    RMY 43
11/29 41/28/35/-3/0.00/0.0/135/24         23 N    AERO N/A    RMY 21
11/30 57/36/47/+10/0.96/0.0/000/00        63 SSE  AERO N/A    RMY 68

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

PRELIMINARY CLIMATE SUMMARY FOR DECEMBER 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

12/1  40/30/35/-2/0.00/0.0/…/..         54 NW   AERO N/A    RMY 60
12/2  44/27/36/-1/0.00/0.0/…/..         24 SSW  AERO N/A    RMY 25

12/3 The low since midnight is 36F, the daily normal low is 29F

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

RECORDS FOR DECEMBER 3
HIGH 67 IN 2009
LOW  -1 IN 1890
PRECIP 2.10 INS. IN 1986
SNOWFALL 6.0 INS. IN 1963
PEAK GUST 73e MPH W IN 1942

RECORDS FOR DECEMBER 4
HIGH 67 IN 1998
LOW -4 IN 1940
PRECIP 1.87 INS. IN 1968
SNOWFALL 6.0 INS. IN 1907
PEAK GUST 73 MPH WNW IN 1980

TODAY’S REPORT PREPARED BY: Benjamin Turner