Saturday, March 12, 2022

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

SATURDAY, MARCH 12, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0601E
SUNSET:  1747E

RAINY WITH A PRESSURE PLUMMET AND INCREASING WIND….

Today started off mild and foggy with a bit of light rain
during the 7 A.M. observation. A more intense rainfall
began a little before noontime, with 0.39 inches being
measured at 1 P.M. Visibility was 3 miles at most due
to fog.

Pressure and wind notably changed as the day went on,
with a drop of over 20 millibars since this morning.
Wind shifted from SE-N, increasing to an average speed
around 15 mph with a max gust of almost 40 mph.

The high so far today is 46F, which is 3 degrees above the
normal maximum of 43F. The low since midnight is 37F, which
is 13 degrees above the normal minimum of 25F.

————————————————————–
PRELIMINARY STATS FOR FEBRUARY 2022

TEMPERATURE, Deg. F
Avg. Max. 40.9 [+3.9] Avg. Min. 21.3 [+1.8] Mean      31.1 [+2.9] 24-hour corrected mean: 31.1
Max. for month: 67F on the 23rd
Min. for month: 2F on the 15th

HEATING DEGREE DAYS
Total heating units:    942 [-87] Total for the season:  4039 [-359] Total for last season: 4045

PRECIPITATION, Inches
Total: 5.55 [+1.55] Greatest in 24 hrs: 1.16 ins. from the 25th-26th

SNOWFALL, Inches
Total: 18.5 ins. [+0.3] Greatest in 24 hrs: 8.4 ins. from the 25th-26th

WIND, mph
Avg. uncorrected wind speed: 13.0 mph
Avg. corrected wind speed:   13.4 mph
Prevailing wind direction:   NW [18%] Peak gust and direction:     66 S on the 22nd

SUNSHINE:
Campbell-Stokes card minutes: 8478 minutes of 17148 possible or 49%
Astronomical total minutes: 8790 minutes of 17786 possible or 49%

————————————————————–

Today’s Observations:

7 A.M.
Weather: Light Rain
Temperature: 43F; Dew Point: 43F; Relative Humidity: 100%
Wind: SSE @ 11 kts
Sea-level pressure: 998.8 mb; 29.49 in. Hg: falling, then
more rapidly
Visibility: 1/16 mile, fog
6-hr Max temp: 43F
6-hr Min temp: 37F
24-hr Precip:  0.02 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0.0 ins.
BHO SA 1155 X W3 1/16R-F 988/43/43/1511/949/ 8//// 56058
70002 10043 20037

10 A.M.
Weather: Overcast stratus
Temperature: 45F; Dew Point: 45F; Relative Humidity: 100%
Wind: SSE @ 11 kts
Sea-level pressure: 991.9 mb; 29.29 in Hg: falling rapidly
Visibility: 1 mile, fog
3-hr Precip:   0.01 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 10 OVC 1F 919/45/45/1511/929/ PRESFR/ 8/6//
58069 6001/

1 P.M.
Weather: Overcast stratus, rain
Temperature: 45F, Dew point: 45F; Relative Humidity: 100%
Wind: NNW @ 19G29 kts, peak of 37 mph NNW at 12:31 P.M.
Sea-level pressure: 984.5 mb; 29.07 in Hg: falling rapidly
Visibility: 3 miles (fog)
6-hr Max temp: 46F
6-hr Min temp: 38F
6-hr Precip:  0.39 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0.0 ins.
BHO SA 1755 10 OVC 3RF 845/45/45/3419G29/907/ PRESFR PK WND
3432/31/ 8/6// 58074 6039/ 10046 20038

SUMMARY FOR FRIDAY, MARCH 11, 2022

TEMPERATURE (DEGREES F)
MAX…….55     NORMAL…..42
MIN…….32     NORMAL…..25
MEAN……44     NORMAL…..34

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..+10
TOTAL DEPARTURE FOR THE MONTH………………..+42 [+3.6 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………21  DEPARTURE…….-10
TOTAL HEATING UNITS FOR THE MONTH…………..314  DEPARTURE…….-43
TOTAL HEATING UNITS FOR THE SEASON…………4397  DEPARTURE……-392
TOTAL HEATING UNITS LAST SEASON TO DATE…….4404  DEPARTURE……..-7

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….27 S   @  5:58 P.M.
AEROVANE……………….25 S   @  6:00 P.M.
VECTOR #2 (Instantaneous)..28     @  5:58 P.M.
DAVIS #2 ………………33 S   @  7:12 P.M.
RMY #2 (Instantaneous)…..28 S   @  5:58 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………………21 S   @  5:58 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..21     @  6:00 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………23 S   @  5:55 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..21 S   @  6:00 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……9.1 S [218 total miles] VECTOR #2…………….9.7
DAVIS #2……………..9.6 SSW
RMY #2……………….9.7 SSW
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…….0.02  DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE MONTH………….0.72  DEPARTURE…..-1.20
TOTAL PRECIPITATION FOR THE YEAR………….10.86  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……………….3.3  DEPARTURE……-3.3
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..69.9  DEPARTURE…..+11.4

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/+8/0.27/0.0/006/01         33 W   AERO 32 WNW RMY 34
2/09  42/24/33/+6/0.00/0.0/608/98         30 WNW AERO 29 WNW RMY 31
2/10  50/31/41/+14/0.00/0.0/312/50        36 W   AERO 37 SW  RMY 38
2/11  52/32/42/+15/0.00/0.0/569/91        32 S   AERO 31 S   RMY 34
2/12  59/35/47/+19/0.00/0.0/433/69        50 W   AERO 46 W   RMY 48
2/13  35/22/29/+1/0.41/5.7/000/00         26 WNW AERO 21 WNW RMY 26
2/14  22/6/14/-14/0.13/2.7/418/66         43 WNW AERO 40 WNW RMY 43
2/15  25/2/14/-14/0.00/0.0/636/100        31 W   AERO 28 W   RMY 31
2/16  43/16/30/+2/0.00/0.0/505/79         49 S   AERO 51 S   RMY 52
2/17  59/43/51/22/0.04/0.0/218/34         49 SW  AERO 48 SW  RMY 53
2/18  59/21/40/+11/0.69/0.0/419/65        58 SW  AERO 58 S   RMY 60
2/19  37/15/26/-3/0.02/0.2/349/54         56 WNW AERO 53 WNW RMY 54 TSTM
2/20  32/11/22/-7/0.00/0.0/553/85         42 WNW AERO 42 SW  RMY 44
2/21  55/28/42/+13/0.00/0.0/619/95        36 SW  AERO 35 SW  RMY 39
2/22  52/33/43/+13/0.53/0.0/007/01        66 S   AERO 70 S   RMY 68
2/23  67/30/49/+19/0.00/0.0/309/47        50 WNW AERO 47 SSW RMY 49
2/24  30/20/25/-5/0.00/0.0/053/08         32 NNW AERO 31 NNW RMY 32
2/25  32/15/24/-6/1.16/8.3/000/00         33 ENE AERO 32 NNW RMY 33
2/26  29/10/20/-11/T/0.1/533/80           22 W   AERO 18 W   RMY 21
2/27  39/18/29/-2/0.01/0.2/649/97         41 WNW AERO 41 NNW RMY 43
2/28  27/15/21/-10/0.00/0.0/659/98        30 NW  AERO 26 NNW RMY 30

DAILY RECORDS FOR FEBRUARY 2022

2/12/22: DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 59F,
SURPASSES PREVIOUS RECORD OF 56F SET IN 1999

2/17/22: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 43F,
SURPASSES PREVIOUS RECORD OF 38F SET IN 1981

2/23/22: DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 67F,
TIES RECORD OF 67F SET IN 2017

PRELIMINARY CLIMATE SUMMARY FOR MARCH 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

3/01  37/15/26/-5/0.08/T/128/19           36 S   AERO 36 S   RMY 37
3/02  43/31/37/+5/0.01/0.0/609/90         29 W   AERO 25 SW  RMY 29
3/03  38/17/28/-4/0.16/T/518/76           40 NNW AERO 35 NW  RMY 40
3/04  34/10/22/-10/0.00/0.0/669/98        31 NW  AERO 28 NW  RMY 31
3/05  39/18/29/-3/0.00/0.0/508/74         24 S   AERO 21 S   RMY 25
3/06  63/35/49/+16/0.01/0.0/186/27        53 SW  AERO 53 WSW RMY 56
3/07  62/47/55/+22/0.08/0.0/035/05        59 WNW AERO 58 WNW RMY 59
3/08  47/30/39/+6/0.00/0.0/…/..         55 WNW AERO 53 WNW RMY 56
3/09  38/29/34/+1/…./…/…/..         19 NNW AERO 17 NNW RMY 20
3/10  49/26/38/+4/…./…/…/..         18 NW  AERO 16 SSW RMY 18
3/11  55/32/44/+10/…./…/…/..        27 S   AERO 25 S   RMY 27

3/12 The low since midnight is 37F, the daily normal low is 26F

DAILY RECORDS FOR MARCH 2022

3/07/22: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 47F,
SURPASSES PREVIOUS RECORD OF 43F SET IN 1894

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

RECORDS FOR MARCH 12
HIGH 72 IN 2012
LOW 2 IN 1885
PRECIP 2.87 INS. IN 1888
SNOWFALL 9.7 INS. IN 1959
PEAK GUST 66 MPH SE IN 1962

RECORDS FOR MARCH 13
HIGH 72 IN 1990
LOW -1 IN 1885
PRECIP 2.47 INS. IN 1993
SNOWFALL 23.0 INS. IN 2018 [RECORD FOR MONTH] PEAK GUST 76 MPH ENE IN 1993 [THE “STORM OF THE CENTURY”]

TODAY’S REPORT PREPARED BY: Benjamin Turner