Monday, February 7, 2022

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

MONDAY, FEBRUARY 7, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0651E
SUNSET:  1706E

OVERCAST WITH LIGHT PRECIPITATION ON THE LEADING EDGE OF MILDER AIR….

After a bright, but cold day yesterday, today the clouds have
returned, giving us yet another day with very limited sunshine.
Light snow broke out between 7am-8am this morning and quickly
accumulated to 0.2″ before changing to light rain. Light rain
has continued off and on since, but has only amounted to 0.01″
as measured at the 10am observation.

Temperatures have been rising steadily allowing for much needed
melting to take place after the ice accrual early in the week-
end. We finally went above freezing just after 10am this morning,
for the first time since slipping below that mark between 7am-8am
on Friday.

The wind has been light today out of mainly a southeasterly
direction. Peak gust so far today has only been 15mph!

Visibility has of course been limited today with the light
precipitation in the area, generally 20 miles or less.

The high so far today is 38F, this is 3 degrees above the normal
high of 35F. The low since midnight is 21F, which is 3 degrees
above the normal minimum of 18F.

————————————————————–

PRELIMINARY STATS FOR JANUARY 2022

TEMPERATURE, Deg. F
Avg. Max. 33.2 [-1.5] Avg. Min. 15.3 [-3.0] Mean      24.3 [-2.2] 24-hour corrected mean: 24.9
Max. for month: 51F on the 1st
Min. for month: 0F on the 16th

HEATING DEGREE DAYS
Total heating units:   1255 [+62] Total for the season:  3141 [-262] Total for last season: 3044

PRECIPITATION, Inches
Total: 4.59 [+0.09] Greatest in 24 hrs: 1.84 inches on the 28th-29th

SNOWFALL, Inches
Total: 45.4 ins. [+26.8] Greatest in 24 hrs: 27.6 ins. from the 28th-29th

WIND, mph
Avg. uncorrected wind speed: 12.6 mph
Avg. corrected wind speed:   13.0 mph
Prevailing wind direction:   NW [18%] Peak gust and direction:     65 ESE on the 17th

SUNSHINE:
Campbell-Stokes card minutes: 8946 minutes of a possible 17130 or 52%
Astronomical total minutes:  9236 minutes of a possible 17666 or 52%

————————————————————–

Today’s Observations:

7 A.M.
Weather: Overcast stratocumulus, few breaks in overcast distant ESE,
higher clouds visible distant ESE
Temperature: 29F; Dew Point: 24F; Relative Humidity: 88%
Wind: SE @ 7 kts
Sea-level pressure: 1030.4 mb; 30.43 in. Hg: falling, then more rapidly
Visibility: 20 miles, thin smoke layer below inversion
6-hr Max temp: 29F
6-hr Min temp: 22F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 1 ins.
BHO SA 1155 E14 OVC 20 304/29/24/1307/043/ FEW BINOVC DSNT ESE
HIER CLDS VSBL DSNT ESE THN K LYR BLW INVRSN W-WNW/ 8/5// 4/001
58008 10029 20022

10 A.M.
Weather: Overcast stratus, very light rain
Temperature: 32F; Dew Point: 32F; Relative Humidity: 98%
Wind: SE @ 7 kts
Sea-level pressure: 1029.4 mb; 30.40 in Hg: falling, then more rapidly
Visibility: 7 miles, thin fog
3-hr Precip:  0.01 ins.
3-hr Snowfall: 0.2 ins.
BHO SA 1455 E10 OVC 7R- 294/32/32/1207/040/ PCPN VRY LGT THN F ALQDS
S-E02R-B02 NEW SNW PST 3 HRS 0.2 INS/ 8/6// 58010 6001/

1 P.M.
Weather: Overcast stratus, few stratus fractus all quadrants,
very light rain
Temperature: 37F, Dew point: 36F; Relative Humidity: 94%
Wind: SSE @ 7 kts
Sea-level pressure: 1026.0 mb; 30.30 in Hg: falling, then more rapidly
Visibility: 20 miles
6-hr Max temp: 38F
6-hr Min temp: 29F
6-hr Precip:  0.01 ins.
6-hr Snowfall: 0.2 ins.
Snow Depth: 1 ins.
BHO SA 1755 E30 OVC 20R- 260/37/36/1507/030/ FEW STFRA ALQDS PCPN VRY LGT
R-B05 NEW SNW PST 6 HRS 0.2 INS/ 8/6// 4/001 58034 6001/ 10038 20029

SUMMARY FOR SUNDAY, FEBRUARY 6, 2022

TEMPERATURE (DEGREES F)
MAX…….27     NORMAL…..35
MIN……. 5     NORMAL…..18
MEAN……16     NORMAL…..27

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..-11
TOTAL DEPARTURE FOR THE MONTH……………………..+12 [+1.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………49  DEPARTURE…….+11
TOTAL HEATING UNITS FOR THE MONTH…………..220  DEPARTURE…….-12
TOTAL HEATING UNITS FOR THE SEASON…………3361  DEPARTURE……-274
TOTAL HEATING UNITS LAST SEASON TO DATE…….3246  DEPARTURE……+115

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….20 NNW @ 12:43 A.M.
AEROVANE……………….21 NNW @ 12:43 A.M.
VECTOR #2 (Instantaneous)..N/A DUE TO ICING
DAVIS #2 ………………N/A DUE TO ICING
RMY #2 (Instantaneous)…..N/A DUE TO ICING
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………………13 NNW @ 12:47 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..N/A DUE TO ICING
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………N/A DUE TO ICING
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..N/A DUE TO ICING
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……. 7.3 NNW  [175 total miles] VECTOR #2……………..N/A DUE TO ICING
DAVIS #2………………N/A DUE TO ICING
RMY #2………………..N/A DUE TO ICING
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………….1.70  DEPARTURE…..+0.88
TOTAL PRECIPITATION FOR THE YEAR…………..6.29  DEPARTURE…..+0.97

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH……………….1.1  DEPARTURE……-3.0
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..49.2  DEPARTURE…..+11.4

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/-1/0.00/0.0/000/00         44 NW  AERO 41 N   RMY 43
1/15  13/1/7/-19/0.00/0.0/470/83          40 NW  AERO 39 NW  RMY 40
1/16  31/0/16/-10/0.00/0.0/488/86         29 ESE AERO 28 ESE RMY 30
1/17  46/31/39/+13/1.14/0.3/119/21        65 ESE AERO 74 ESE RMY 72
1/18  32/17/25/-1/0.00/0.0/446/78         46 WNW AERO 44 WNW RMY 45
1/19  44/16/30/+4/0.00/0.0/309/54         50 SSW AERO 53 SSW RMY 51
1/20  38/16/27/+1/0.17/0.6/058/10         34 N   AERO 35 N   RMY 34
1/21  20/6/13/-13/0.00/0.0/467/81         29 NNW AERO 30 NNW RMY 29
1/22  25/9/17/-9/T/0.2/358/62             23 NNW AERO 22 NNW RMY 22
1/23  34/17/26/0/0.01/0.1/331/57          26 WSW AERO 26 WSW RMY 26
1/24  29/19/24/-2/0.03/0.5/379/65         22 N   AERO 20 N   RMY 22
1/25  39/23/31/+5/0.03/0.3/129/22         27 WNW AERO 25 WNW RMY 26
1/26  24/9/17/-9/0.00/0.0/582/99          25 N   AERO 25 N   RMY 25
1/27  25/3/14/-12/0.00/0.0/589/100        26 SSW AERO 26 SSW RMY 27
1/28  33/21/27/1/0.05/0.5/000/00          26 NNE AERO 28 SW  RMY 28
1/29  28/7/18/-8/1.79/27.1/000/00         55 N   AERO 58 N   RMY 58
1/30  21/4/13/-13/0.00/0.0/590/99         39 NW  AERO 41 WNW RMY 40
1/31  30/8/19/-7/0.00/0.0/592/99          17 NW  AERO 16 NW  RMY 18

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

1/29/22: DAILY RECORD SNOWFALL OF 27.1 INS,
SURPASSES THE PREVIOUS RECORD OF 8 IN IN 1943

DAILY RECORD PRECIP OF 1.79 INS,
SURPASSES THE PREVIOUS RECORD OF 1.48 INS IN 1973

PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 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

2/01  31/16/24/-2/T/0.2/…/..            19 NNE AERO 18 NNE RMY 19
2/02  44/31/38/+12/T/0.0/…/..           20 SSE AERO 21 SSE RMY 20
2/03  47/36/42/+16/0.16/0.0/…/..        27 SSW AERO 28 SSW RMY 28
2/04  49/19/34/+8/1.53/0.7/…/..         35 NNE AERO 37 NNE RMY 38
2/05  21/11/16/-11/0.01/0.2/…/..        25 NW  AERO 25 NW  RMY M
2/06  27/5/16/-11/0.00/0.0/…/..         20 NNW AERO 21 NNW RMY M

2/07 The low since midnight is 21F, the daily normal low is 18F

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

RECORDS FOR FEBRUARY 7
HIGH 53F IN 2020
LOW -8F IN 1910
PRECIP 2.12 INS. IN 1983
SNOWFALL 17.1 INS. IN 1978 [BLIZZARD OF 1978] PEAK GUST 87e MPH SSE IN 1951

RECORDS FOR FEBRUARY 8
HIGH 59F IN 1933
LOW -9F IN 1934
PRECIP 1.86 INS. IN 2013
SNOWFALL 16.1 INS. IN 2013
PEAK GUST 63e MPH NE IN 1945, NE IN 2013

TODAY’S REPORT PREPARED BY: Matt Douglas