Friday, February 11, 2022

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

FRIDAY, FEBRUARY 11, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0646E
SUNSET:  1711E

A GORGEOUS MID-FEBRUARY DAY….

The step out the door this morning likely felt much better
compared to previous mornings of late. The summit briefly nudged
32F in the wee hours before rising to the mid-30s by sunrise.
It is turning out to be a sun filled, mild winter’s day. Skies are
predominantly clear with visibility well into southern New Hampshire.
Dew points are hanging in the mid-20s giving the air a refreshing
vibe. Winds are not too busy from the southwest averaging 13 MPH.
Get out and enjoy 🙂

The high so far today is 51F, this is 15 degrees above the normal
high of 36F. The low since midnight is 32, which is 13 degrees
above the normal minimum of 19F.

————————————————————–

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: Clear (few altocumulus distant NE)
Temperature: 35F; Dew Point: 23F; Relative Humidity: 61%
Wind: SW @ 10G17 kts
Sea-level pressure: 1015.9 mb; 30.00 in. Hg: Rising, then rising more slowly
Visibility: 80 miles
6-hr Max temp: 35F
6-hr Min temp: 32F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: Trace
BHO SA 1155 CLR 80 159/35/23/2410G17/000/ FEW AC DSNT NE/ 8/050 51017 10035 20032

10 A.M.
Weather: Clear
Temperature: 43F; Dew Point: 25F; Relative Humidity: 48%
Wind: SSW @ 09G16 kts
Sea-level pressure: 1016.7 mb; 30.02 in Hg: rising unsteadily
Visibility: 80 miles
3-hr Precip:  0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 CLR 80 167/43/25/2109G16/002/ 8/000 52008

1 P.M.
Weather: Clear (few cirrus distant all quads)
Temperature: 51F, Dew point: 25F; Relative Humidity: 36%
Wind: SSW @ 15G25kts
Sea-level pressure: 1014.2 mb; 29.95 in Hg: falling, then falling more rapidly
Visibility: 80 miles
6-hr Max temp: 51F
6-hr Min temp: 35F
6-hr Precip:  0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: Trace
BHO SA 1755 CLR 80 142/51/25/2015G25/995/ FEW CI DSNT ALQDS/ 8/000 58025 10051 20035

SUMMARY FOR THURSDAY, FEBRUARY 10, 2022

TEMPERATURE (DEGREES F)
MAX…….50     NORMAL…..36
MIN…….31     NORMAL…..18
MEAN……41     NORMAL…..27

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+14
TOTAL DEPARTURE FOR THE MONTH……………………..+44 [+4.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………24  DEPARTURE…….-14
TOTAL HEATING UNITS FOR THE MONTH…………..340  DEPARTURE…….-44
TOTAL HEATING UNITS FOR THE SEASON…………3481  DEPARTURE……-306
TOTAL HEATING UNITS LAST SEASON TO DATE…….3410  DEPARTURE…….+71

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….36 W   @  5:08 P.M.
AEROVANE……………….37 W   @ 12:35 P.M.
VECTOR #2 (Instantaneous)..38     @  5:08 P.M.
DAVIS #2 ………………35 W   @  5:08 P.M.
RMY #2 (Instantaneous)…..38 W   @  5:08 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………………25 SW  @ 12:32 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..25     @ 12:32 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………25 SW  @ 12:32 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..26 SW  @ 12:32 P.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 [310 total miles] VECTOR #2…………….. 15.6
DAVIS #2……………… 15.5 SW
RMY #2……………….. 15.7 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…..-0.13
TOTAL PRECIPITATION FOR THE MONTH………….2.56  DEPARTURE…..+1.22
TOTAL PRECIPITATION FOR THE YEAR…………..7.15  DEPARTURE…..+1.31

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH……………….1.3  DEPARTURE……-5.5
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..49.4  DEPARTURE……+8.9

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/0.2/018/03            19 NNE AERO 18 NNE RMY 19
2/02  44/31/38/+12/T/0.0/096/16           20 SSE AERO 21 SSE RMY 20
2/03  47/36/42/+16/0.16/0.0/000/00        27 SSW AERO 28 SSW RMY 28
2/04  49/19/34/+8/1.53/0.7/000/00         35 NNE AERO 37 NNE RMY 38
2/05  21/11/16/-11/0.01/0.2/251/41        25 NW  AERO 25 NW  RMY M
2/06  27/5/16/-11/0.00/0.0/570/93         20 NNW AERO 21 NNW RMY M
2/07  41/21/31/+4/0.59/0.2/000/00         25 ESE AERO 23 ESE RMY 25
2/08  39/30/35/+8/…./…/…/..         33 W   AERO 32 WNW RMY 34
2/09  42/24/33/+6/0.00/0.0/…/..         30 WNW AERO 29 WNW RMY 31
2/10  50/31/41/+14/0.00/0.0/…/..        36 W   AERO 37 SW  RMY 38

2/11  The low since midnight is 32F, the daily normal low is 19F

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

RECORDS FOR FEBRUARY 11
HIGH 60F IN 1981
LOW -10F IN 1899
PRECIP 1.07 INCHES IN 1955
SNOWFALL 9.6 INCHES IN 1933
PEAK GUST 95 MPH S IN 1981

RECORDS FOR FEBRUARY 12
HIGH 56F IN 1999
LOW -14F IN 1914
PRECIP 4.85 INCHES IN 1886 [RECORD FOR MONTH] SNOWFALL 15.0 INCHES IN 2006
PEAK GUST 70 MPH E IN 1985

TODAY’S REPORT PREPARED BY: Andrew Swanson