Wednesday, January 19, 2022

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

WEDNESDAY, JANUARY 19, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0708E
SUNSET:  1642E

MOSTLY CLOUDY WITH A SIGNIFICANT SOUTHERLY BREEZE….

We’re observing quite the temperature jump and pressure fall as
the day goes on. Temperature increased 23 degrees since this
morning due to sunshine and significant warm air advection from
the south. Pressure fell six millibars since the 7 A.M. observation.

Frequent gusts over 40 mph have been occurring today with a peak
gust so far measured at 53 mph. The average speed for the day
thus far is around 25 mph from the south.

Visibility is decent at 55 miles.

The high so far today is 44F which occurred back at midnight,
this is 10 degrees above the normal high of 34F. The low since
midnight is 16F, which is 2 degrees below the normal low of 18F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Overcast altocumulus with breaks NE-E-S
Temperature: 20F; Dew Point: 6F; Relative Humidity: 55%
Wind: S @ 8 kts
Sea-level pressure: 1020.9 mb; 30.15 in. Hg: falling unsteadily
Visibility: 50 miles
6-hr Max temp: 20F
6-hr Min temp: 16F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 110 OVC 50 209/20/6/1808/015/ BINOVC NE-E-S/ 8/070 57003
10020 20016

10 A.M.
Weather: Broken altocumulus, Overcast cirrostratus with
breaks NE-E
Temperature: 30F; Dew Point: 21F; Relative Humidity: 69%
Wind: S @ 23G29 kts, peak wind 46mph WNW at 9:13 A.M.
Sea-level pressure: 1018.7 mb; 30.08 in Hg; falling, then more rapidly
Visibility: 60 miles
3-hr Precip:  0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 110 BKN 250 OVC 60 187/30/21/1823G29/008/ BINOVC NE-E PK
WND 1830/20/ 8/078 58022

1 P.M.
Weather: Broken altocumulus and broken cirrus
Temperature: 43F, Dew point: 6F; Relative Humidity: 55%
Wind: SSW @ 20G46 kts, peak wind 53 mph SSW at 12:54 P.M.
Sea-level pressure: 1013.8 mb; 29.94 in Hg; falling, then
more rapidly
Visibility: 50 miles
6-hr Max temp: 44F
6-hr Min temp: 20F
6-hr Precip:  0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 110 BKN 250 BKN 50 138/43/6/2020G46/994/ PK WND
2046/54/ 8/071 58049 10044 20020

SUMMARY FOR TUESDAY, JANUARY 18, 2022

TEMPERATURE (DEGREES F)
MAX…….32     NORMAL…..34
MIN…….17     NORMAL…..18
MEAN……25     NORMAL…..26

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….-1
TOTAL DEPARTURE FOR THE MONTH……………………….-3 [-0.4 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………40  DEPARTURE……..+1
TOTAL HEATING UNITS FOR THE MONTH…………..686  DEPARTURE……..+2
TOTAL HEATING UNITS FOR THE SEASON…………2572  DEPARTURE……-322
TOTAL HEATING UNITS LAST SEASON TO DATE…….2501  DEPARTURE…….+71

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….46 WNW @  9:13 A.M.
AEROVANE……………….44 WNW @  4:54 P.M.
VECTOR #2 (Instantaneous)..48     @  9:13 A.M.
DAVIS #2 ………………42 WNW @  9:13 A.M.
RMY #2 (Instantaneous)…..46 WNW @  4:55 P.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………………31 WNW @  9:14 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..33     @  9:14 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………33 NW  @  9:14 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..33 WNW @  9:14 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…..19.0 WNW  [456 total miles] VECTOR #2……………19.4
DAVIS #2…………….19.4 NW
RMY #2………………19.4 WNW
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…..-0.14
TOTAL PRECIPITATION FOR THE MONTH………….2.51  DEPARTURE…..-0.19
TOTAL PRECIPITATION FOR THE YEAR…………. 2.51  DEPARTURE…..-0.19

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH………………16.1  DEPARTURE……+5.8
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..18.8  DEPARTURE……-6.6

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

1/01  51/43/47/+18/0.08/0.0/000/00        21 SSE AERO 21 SSE RMY 22
1/02  48/29/39/+11/0.29/0.0/000/00        35 NW  AERO 36 NW  RMY 35
1/03  29/18/24/-4/0.00/0.0/000/00         31 NNW AERO 30 N   RMY 30
1/04  30/12/21/-7/0.00/0.0/546/99         25 S   AERO 24 S   RMY 25
1/05  49/25/37/+9/0.21/0.0/000/00         45 S   AERO 48 S   RMY 47
1/06  40/27/34/+6/0.00/0.0/316/57         36 WNW AERO 36 WNW RMY 36
1/07  28/17/23/-4/0.78/15.7/000/00        39 WNW AERO 38 WNW RMY 39
1/08  26/11/19/-8/0.00/0.0/556/100        34 WNW AERO 32 WNW RMY 34
1/09  41/19/30/+3/0.01/T/017/03           50 SW  AERO 51 SW  RMY 53
1/10  36/17/27/0/T/T/469/84               44 WNW AERO 43 WNW RMY 46
1/11  17/4/11/-16/T/0.1/560/100           36 NW  AERO 37 NW  RMY 35
1/12  40/5/23/-4/42/0.00/0.0/533/95       43 SSW AERO 44 SSW RMY 44
1/13  45/28/37/+11/0.00/0.0/332/59        22 SW  AERO 22 SW  RMY 22
1/14  38/12/25/-1/0.00/0.0/470/83         44 NW  AERO 41 N   RMY 43
1/15  13/1/7/-19/0.00/0.0/488/86          40 NW  AERO 39 NW  RMY 40
1/16  31/0/16/-10/0.00/0.0/…/..         29 ESE AERO 28 ESE RMY 30
1/17  46/31/39/+13/1.14/0.3/…/..        65 ESE AERO 74 ESE RMY 72
1/18  32/17/25/-1/…./…/…/..         46 WNW AERO 44 WNW RMY 45

1/19  The low since midnight is 16F, 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

1/17/22: DAILY RECORD PEAK GUST OF 65 MPH ESE,
SURPASSES THE PREVIOUS RECORD OF 62 MPH S IN 1994

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

RECORDS FOR JANUARY 19
HIGH 59F IN 1973
LOW -11F IN 1887
PRECIP 2.34 INS. IN 1936
SNOWFALL 10.5 INS. IN 1936
PEAK GUST 93e MPH WNW IN 1943

RECORDS FOR JANUARY 20
HIGH 59F IN 1951
LOW -9F IN 1901
PRECIP 1.95 INS. IN 1978
SNOWFALL 19.0 INS. IN 1978
PEAK GUST 76e MPH NE IN 1978

TODAY’S REPORT PREPARED BY: Benjamin Turner