Thursday, January 13, 2022

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

THURSDAY, JANUARY 13, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0712E
SUNSET:  1635E

MILDER WITH ABUNDANT SUNSHINE AND LIGHTER WIND….

We observed a limited visibility of 30 miles today due to a thicker
layer of haze. Skies were mostly cloudy, but sunshine was still
abundant since the layer was translucent. A trace of snow remains
on the ground, and Houghton’s and Ponkapoag remain covered in
ice throughout the day. This is a surprise considering how mild
the weather has become.

Wind was around 10 mph on average after seeing yesterday’s max
gust clock in at 43 mph!

The high so far today is 45F, which is 10 degrees above the normal
high of 35F. The low since midnight is 28F, which is 10 degrees above
the normal low of 18F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Broken stratocumulus and altostratus
Temperature: 30F; Dew Point: 23F; Relative Humidity: 74%
Wind: SSW @ 8 kts
Sea-level pressure: 1017.8 mb; 30.06 in. Hg: falling then rising
Visibility: 30 miles, hazy
6-hr Max temp: 31F
6-hr Min temp: 28F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: Trace
BHO SA 1155 50 BKN 140 BKN 30 178/30/23/2008/006/ HAZY/ 8/570 51003
10031 20028

10 A.M.
Weather: Broken stratocumulus and thin cirrus
Temperature: 36F; Dew Point: 25F; Relative Humidity: 63%
Wind: S @ 7 kts
Sea-level pressure: 1018.1 mb; 30.07 in Hg; rising steadily
Visibility: 35 miles, hazy
3-hr Precip:  0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 50 BKN 250 BKN 35 181/36/25/1807/007/ HAZY/ 8/501 52003

1 P.M.
Weather: Scattered altocumulus, thin broken cirrostratus
Temperature: 44F, Dew point: 31F; Relative Humidity: 59%
Wind: SSW at 15 kts
Sea-level pressure: 1015.3 mb; 29.99 in Hg; falling unsteadily
Visibility: 25 miles, hazy
6-hr Max temp: 45F
6-hr Min temp: 30F
6-hr Precip:  0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: Trace
BHO SA 1755 140 SCT 250 -BKN 25 153/44/31/2015/999/ HAZY/ 8/056 57028
10045 20030

SUMMARY FOR WEDNESDAY, JANUARY 12, 2022

TEMPERATURE (DEGREES F)
MAX…….40     NORMAL…..35
MIN……..5     NORMAL…..19
MEAN……23     NORMAL…..27

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….-4
TOTAL DEPARTURE FOR THE MONTH……………………….+4 [+0.1 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………42  DEPARTURE……..+3
TOTAL HEATING UNITS FOR THE MONTH…………..445  DEPARTURE……..-6
TOTAL HEATING UNITS FOR THE SEASON…………2331  DEPARTURE……-330
TOTAL HEATING UNITS LAST SEASON TO DATE…….2330  DEPARTURE……..-4

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….43 SSW @ 10:48 A.M.
AEROVANE……………….44 SSW @  9:17 A.M.
VECTOR #2 (Instantaneous)..43     @ 10:48 A.M.
DAVIS #2 ………………41 WSW @ 12:34 P.M.
RMY #2 (Instantaneous)…..44 SSW @ 10:06 A.M.
ASOS………..OUT OF SERVICE D/T RENOVATIONS
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………………29 SSW @  9:09 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..32     @ 10:49 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………30 SW  @  9:10 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..33 SSW @ 10:49 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE…….OUT OF SERVICE D/T RENOVATIONS
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……15.0 SSW  [361 total miles] VECTOR #2…………….15.7
DAVIS #2……………..15.9 SW
RMY #2……………….15.8 SW
RMY #1…………..OUT OF SERVICE D/T RENOVATIONS
ASOS…………….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………….1.37  DEPARTURE…..-0.44
TOTAL PRECIPITATION FOR THE YEAR…………. 1.37  DEPARTURE…..-0.44

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE……-0.5
TOTAL SNOWFALL FOR THE MONTH………………15.8  DEPARTURE……+9.2
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..18.5  DEPARTURE……-3.2

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

12/01   44/30/37/0.00/0.0/263/47          35 W   AERO 35 W   RMY 34
12/02   58/35/47/10/T/0.0/106/19          56 WNW AERO 59 WNW RMY 62 TSTM
12/03   41/28/35/-1/0.00/0.0/512/92       46 NW  AERO 44 NW  RMY 46
12/04   39/25/32/-4/0.00/0.0/233/42       25 SW  AERO 23 SW  RMY 26
12/05   45/32/39/+3/0.00/0.0/460/83       25 SE  AERO 25 SE  RMY 25
12/06   59/37/48/+13/0.34/0.0/077/14      59 WNW AERO 59 NW  RMY 60
12/07   40/29/35/0/T/0.0/436/79           47 WNW AERO 36 WNW RMY 48
12/08   34/25/30/-5/0.05/0.6/000/00       26 NNE AERO 25 NE  RMY 26
12/09   35/20/28/-6/0.05/0.6/319/58       32 NW  AERO 30 NW  RMY 33
12/10   43/27/35/+1/0.00/0.0/000/00       21 SE  AERO 20 SE  RMY 21
12/11   62/37/50/+16/0.34/0.0/000/00      57 SSW AERO 59 SSW RMY 58
12/12   58/36/47/+13/0.05/0.0/416/76      55 WNW AERO 55 WNW RMY 58
12/13   50/35/43/+10/0.00/0.0/224/41      32 WSW AERO 33 WSW RMY 33
12/14   50/33/42/+9/0.00/0.0/442/81       31 WSW AERO 30 WSW RMY 32
12/15   42/28/35/+2/T/0.0/153/28          35 SSE AERO 35 SSE RMY 36
12/16   58/42/50/+18/0.21/0.0/016/03      35 SW  AERO 37 SW  RMY 38
12/17   56/39/48/+16/0.00/0.0/518/95      43 WNW AERO 41 WNW RMY 46
12/18   39/31/35/+3/0.52/0.2/000/00       21 NNW AERO 20 NNW RMY 20
12/19   39/20/30/-2/0.39/0.0/082/15       35 NNW AERO 37 NNW RMY 36
12/20   32/15/24/-7/0.00/0.0/528/97       29 SSW AERO 30 SSW RMY 30
12/21   40/27/34/+3/0.00/0.0/371/68       31 SW  AERO 32 SW  RMY 33
12/22   45/30/38/+7/0.10/0.0/038/07       47 NW  AERO 45 NW  RMY 47
12/23   30/21/26/-5/0.00/0.0/441/81       39 NW  AERO 38 NW  RMY 37
12/24   25/20/23/-7/0.01/0.1/000/00       14 N   AERO 13 N   RMY 14
12/25   34/25/30/0/0.34/0.0/000/00        20 NNW AERO 20 NNW RMY 18
12/26   37/30/34/+4/0.09/T/120/22         37 NW  AERO 37 NW  RMY 37
12/27   33/26/30/0/T/T/071/13             32 NW  AERO 35 NW  RMY 35
12/28   42/30/36/+7/0.06/0.1/147/27       34 NW  AERO 32 NW  RMY 35
12/29   40/32/36/+7/0.01/0.1/000/00       13 WSW AERO 12 WSW RMY 13
12/30   39/36/38/+9/0.04/0.0/000/00       11 N   AERO 13 SE  RMY 11
12/31   43/39/41/+12/0.03/0.0/000/00      17 S   AERO 16 S   RMY 18

DAILY RECORDS FOR DECEMBER 2021

12/16/21: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 42F
TIES PREVIOUS RECORD OF 42F SET IN 1982

PRELIMINARY CLIMATE SUMMARY FOR JANUARY 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

1/1   51/43/47/+18/0.08/0.0/000/00        21 SSE AERO 21 SSE RMY 22
1/2   48/29/39/+11/0.29/0.0/000/00        35 NW  AERO 36 NW  RMY 35
1/3   29/18/24/-4/0.00/0.0/000/00         31 NNW AERO 30 N   RMY 30
1/4   30/12/21/-7/0.00/0.0/546/99         25 S   AERO 24 S   RMY 25
1/5   49/25/37/+9/0.21/0.0/000/00         45 S   AERO 48 S   RMY 47
1/6   40/27/34/+6/0.00/0.0/316/57         36 WNW AERO 36 WNW RMY 36
1/7   28/17/23/-4/0.78/15.7/000/00        39 WNW AERO 38 WNW RMY 39
1/8   26/11/19/-8/0.00/0.0/556/100        34 WNW AERO 32 WNW RMY 34
1/9   41/19/30/+3/0.01/T/017/03           50 SW  AERO 51 SW  RMY 53
1/10  36/17/27/0/T/T/…/..               44 WNW AERO 43 WNW RMY 46
1/11  17/4/11/-16/T/0.1/…/..            36 NW  AERO 37 NW  RMY 35
1/12  40/5/23/-4/42/0.00/0.0/…/..       43 SSW AERO 44 SSW RMY 44

1/13  The low since midnight is 28F, the daily normal low is 18F

DAILY RECORDS FOR JANUARY 2022

1/1/22: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 43F
SURPASSES PREVIOUS RECORD OF 42F SET IN 1966

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

RECORDS FOR JANUARY 13
HIGH 60F IN 2018
LOW -11F IN 1912
PRECIP 1.54 INS. IN 1979
SNOWFALL 12.6 INS. IN 1964
PEAK GUST 74 MPH NE IN 1964

RECORDS FOR JANUARY 14
HIGH 65F IN 1995
LOW -12F IN 1914
PRECIP 1.45 INS. IN 2008
SNOWFALL 10.3 INS. IN 2008
PEAK GUST 68 MPH WNW IN 1976, S IN 2005

TODAY’S REPORT PREPARED BY: Benjamin Turner