Sunday, January 16, 2022

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

SUNDAY, JANUARY 16, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0710E
SUNSET:  1638E

MILDER WITH A LIGHT SOUTHERLY BREEZE….

Skies were partly cloudy and the visibility was 75 miles, the
weather was milder than yesterday despite a zero overnight low.
We started off this morning at 1F, and reached 24F by 1 P.M.

Wind was light and variable, but we did notice a mean shift from
NW-S over the course of the day.

The high so far today is 24F, which is 10 degrees below the normal
high of 34F. The low since midnight is 0F, which is 18 degrees below
the normal low of 18F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Few stratocumulus NE-S-SSW
Temperature: 1F; Dew Point: -9F; Relative Humidity: 64%
Wind: NNW @ 5 kts, wind light
Sea-level pressure: 1029.7 mb; 30.41 in. Hg: rising, then more
slowly
Visibility: 75 miles, looming as result of temperature inversion
6-hr Max temp:  2F
6-hr Min temp:  1F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: Trace
BHO SA 1155 CLR 75 297/1/-9/3405/041/ FEW SC NE-S-SSW LOOMING ALG
HRZN BLO INVSN ALQDS WND LGT/ 8/500 51006 10002 20001

10 A.M.
Weather: Few stratocumulus NE-E-S
Temperature: 12F; Dew Point: -4F; Relative Humidity: 51%
Wind: N @ 4 kts
Sea-level pressure: 1031.2 mb; 30.46 in Hg; rising, then more slowly
Visibility: 80 miles, looming as result of temperature inversion
3-hr Precip:  0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 CLR 80 312/12/-4/3604/046/ FEW SC NE-E-S LOOMING ALG HRZN
BLO INVSN ALQDS WND L/V/ 8/500 51015

1 P.M.
Weather: Scattered cirrostratus, few stratocumulus NE-E-S
Temperature: 24F, Dew point: 0F; Relative Humidity: 35%
Wind: S @ 3 kts, light and variable
Sea-level pressure: 1027.9 mb; 30.35 in Hg; falling then rising
Visibility: 75 miles, smoke layer
6-hr Max temp: 24F
6-hr Min temp: 0F
6-hr Precip:  0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: Trace
BHO SA 1755 250 SCT 75 279/24/0/1803/035/ FEW SC NE-E-S K LYR ALG
HRZN WND L/V/ 8/506 56033 10024 20000

SUMMARY FOR SATURDAY, JANUARY 15, 2022

TEMPERATURE (DEGREES F)
MAX…….13     NORMAL…..34
MIN……..1     NORMAL…..18
MEAN…….7     NORMAL…..26

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………-19
TOTAL DEPARTURE FOR THE MONTH……………………….-5 [-0.5 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………58  DEPARTURE…….+19
TOTAL HEATING UNITS FOR THE MONTH…………..571  DEPARTURE………4
TOTAL HEATING UNITS FOR THE SEASON…………2457  DEPARTURE……-320
TOTAL HEATING UNITS LAST SEASON TO DATE…….2421  DEPARTURE…….+36

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….40 NW  @  4:51 A.M.
AEROVANE……………….39 NW  @ 12:02 A.M.
VECTOR #2 (Instantaneous)..43     @  4:50 A.M.
DAVIS #2 ………………36 NNW @  1:51 A.M.
RMY #2 (Instantaneous)…..42 NW  @  1:50 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………………26 NW  @ 12:03 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..27     @ 12:03 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………27 N   @ 12:03 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..27 NW  @ 12:03 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…..17.3 NW  [414 total miles] VECTOR #2……………17.4
DAVIS #2…………….17.3 NW
RMY #2………………17.1 NNW
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…..-0.89
TOTAL PRECIPITATION FOR THE YEAR…………. 1.37  DEPARTURE…..-0.89

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH………………15.8  DEPARTURE……+7.3
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..18.5  DEPARTURE……-5.1

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  45/28/37/+11/0.00/0.0/…/..        22 SW  AERO 22 SW  RMY 22
1/14  38/12/25/-1/0.00/0.0/…/..         44 NW  AERO 41 N   RMY 43
1/15  13/1/7/-19/0.00/0.0/…/..          40 NW  AERO 39 NW  RMY 40

1/16  The low since midnight is 0F, 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 16
HIGH 63F IN 1995
LOW -12F IN 2004
PRECIP 1.32 INS. IN 1936
SNOWFALL 14.0 INS. IN 1965
PEAK GUST 79 MPH WNW IN 1960

RECORDS FOR JANUARY 17
HIGH 55F IN 1973,1995
LOW -8F IN 1907,1982
PRECIP 1.43 INS. IN 1956
SNOWFALL 13.4 INS. IN 1956
PEAK GUST 62 MPH S IN 1994

TODAY’S REPORT PREPARED BY: Benjamin Turner