Friday, March 11, 2022

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

FRIDAY, MARCH 11, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0603E
SUNSET:  1746E

NICE WRAP TO THE WORKWEEK AS MILD TEMPS AND SUN HANG
AROUND…

Quite a variance in temperatures this morning due
to an inversion. The coldest spots were found in the
lowest elevations. In fact, while BHO reached a low
of 32F, Norwood airport (a few miles to our SW) saw
the mercury dip to 24F. Decorative ground fog was observed
accompanying those coldest locations. Temperatures have
responded nicely since sunrise breaking in the low-50s
by early afternoon. Winds are fairly light out of the south.

Visibility was poor to start the day at 35 miles and has
barely budged since then.

The high so far today is 52F, which is 10 degrees above the
normal maximum of 42F. The low since midnight is 32, which
is 7 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: Clear (scattered ground fog)
Temperature: 38F; Dew Point: 22F; Relative Humidity: 51%
Wind:  E @ 3 kts (wind light)
Sea-level pressure: 1019.7 mb; 30.11 in. Hg: rising, then steady
Visibility: 35 miles
6-hr Max temp: 38F
6-hr Min temp: 32F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: Trace
BHO SA 1155 CLR 35 197/38/22/0903/011/ SCT GF BLO SMT ALQDS
WND LGT/ 8/000 4/000 51003 10038 20032

10 A.M.
Weather: Scattered cirrus
Temperature: 45F; Dew Point: 31F; Relative Humidity: 54%
Wind: S @ 3kts (wind light)
Sea-level pressure: 1019.8 mb; 30.11 in Hg: rising then falling
Visibility: 35 miles
3-hr Precip:   0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 250 SCT 35 198/45/31/1803/011/ HAZY WND LGT/ 8/001 50001

1 P.M.
Weather: Scattered Cirrus
Temperature: 52F, Dew point: 26F; Relative Humidity: 36%
Wind: S @ 9G16 kts
Sea-level pressure: 1017.0 mb; 30.03 in Hg: falling, then falling more rapidly
Visibility: 40 miles (hazy)
6-hr Max temp: 52F
6-hr Min temp: 38F
6-hr Precip:  0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: Trace
BHO SA 1755 250 SCT 40 170/52/26/180916/003/ HAZY/ 8/001 58028 10052 20038

SUMMARY FOR THURSDAY, MARCH 10, 2022

TEMPERATURE (DEGREES F)
MAX…….49     NORMAL…..42
MIN…….26     NORMAL…..25
MEAN……38     NORMAL…..34

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………+4
TOTAL DEPARTURE FOR THE MONTH………………..+32 [+3.0 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………27  DEPARTURE……..-4
TOTAL HEATING UNITS FOR THE MONTH…………..293  DEPARTURE…….-33
TOTAL HEATING UNITS FOR THE SEASON…………4376  DEPARTURE……-382
TOTAL HEATING UNITS LAST SEASON TO DATE…….4392  DEPARTURE…….-16

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….18 NW  @ 10:00 A.M.
AEROVANE……………….16 SSW @  7:48 P.M.
VECTOR #2 (Instantaneous)..19     @  9:59 A.M.
DAVIS #2 ………………19 S   @  7:56 P.M.
RMY #2 (Instantaneous)…..18 NW  @  9:59 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………………13 SSW @  7:55 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..13     @ 10:02 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………13 NW  @ 10:01 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..14 SSW @  7:49 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……6.6 WNW [159 total miles] VECTOR #2…………….7.8
DAVIS #2……………..7.2 W
RMY #2……………….7.8 W
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…..-0.17
TOTAL PRECIPITATION FOR THE MONTH………….0.70  DEPARTURE…..-1.05
TOTAL PRECIPITATION FOR THE YEAR………….10.84  DEPARTURE…..+0.59

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……-2.8
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..69.9  DEPARTURE…..+11.9

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

3/10 The low since midnight is 32F, the daily normal low is 25F

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 11
HIGH 71 IN 2021
LOW 4 IN 1939, 1960
PRECIP 2.11 INS. IN 1901
SNOWFALL 6.3 INS. IN 1934
PEAK GUST 66e MPH W IN 1980

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

TODAY’S REPORT PREPARED BY: Andrew Swanson