Wednesday, March 1, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
WEDNESDAY, MARCH 1, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0620E
SUNSET: 1734E
TRANQUIL WEATHER TODAY FOLLOWING YESTERDAY’S SNOW EVENT…
Yesterday’s event was purely a snow event here on the summit,
however as one trekked down the hill, snow became rain about
halfway down in the afternoon. Just amazing how much difference
a little elevation can make. At any rate, total snowfall for the
event was 3.3″ with a total liquid amount of 0.40″.
Today has been tranquil with plenty of sunshine to start the day,
but high clouds are increasing and thickening as we move through
the afternoon hours. Temperatures have warmed nicely into the low
40s.
The wind has been quite light which is adding to the comfortable
feel of the day. The average speed for the day so far is only
around 9mph. The peak gust so far today is only around 20mph.
Visibility has been excellent today with views of 70-80 miles
being observed.
The high so far today is 42F, which is 2 degrees above the normal
maximum of 40F. The low since midnight is 27F degrees, which is
4 degrees above the normal minimum of 23F.
As we start to compile stats for meteorological winter (Dec-Feb),
we are able to share at this moment that winter 2022-23 was the
4th warmest on record. Here is a list of the rankings provided
by our Chief Scientist Mike Iacono.
BHO Warmest Winter (Dec-Feb) Approximated 24-Hour Mean Temperature,
deg F (1885-2023):
1) 34.9 in 2015-2016
2) 34.8 in 2001-2002
3) 34.3 in 2011-2012
4) 34.0 in 2022-2023
5) 32.9 in 2016-2017
6) 32.7 in 2019-2020
7) 32.6 in 1997-1998
8) 32.3 in 1936-1937
32.3 in 1998-1999
More stats will be posted on our website at http://www.bluehill.org
as they become available.
——————————
PRELIMINARY STATS FOR FEBRUARY 2023
TEMPERATURE, Deg. F
Avg. Max. 41.4 [+4.4]
Avg. Min. 24.0 [+4.5]
Mean 32.7 [+4.5]
24-hour corrected mean: 32.9
Max. for month: 61F on the 16th
Min. for month:-14F on the 4th
HEATING DEGREE DAYS
Total heating units: 897 [-132]
Total for the season: 3720 [-712]
Total for last season: 4083
PRECIPITATION, Inches
Total: 1.86 [-2.14]
Greatest in 24 hrs: 1.10 on the 22-23rd
SNOWFALL, Inches
Total: 9.4 [-8.8]
Greatest in 24 hrs: 4.0 on the 22-23rd
WIND, mph
Avg. uncorrected wind speed: 12.2 mph
Avg. corrected wind speed: 12.6 mph
Prevailing wind direction: Southwest [12%]
Peak gust and direction: 56 WNW on the 3rd
SUNSHINE:
Campbell-Stokes card minutes: 7698 of a possible 17148, or 45%
Astronomical total minutes: 7971 of a possible 17767, or 45%
——————————
Today’s Observations:
7 A.M.
Weather: Scattered altocumulus, thin broken cirrus, few stratocumulus
distant NW-NNW and offshore distant E-SE
Temperature: 28F; Dew Point: 26F; Relative Humidity: 93%
Wind: NW @ 10 kts
Sea-level pressure: 1021.3 mb; 30.16 in. Hg: rising, then more rapidly
Visibility: 70 miles
6-hr Max temp: 31F
6-hr Min temp: 27F
24-hr Precip: 0.25 ins.
24-hr Snowfall: 1.4 ins.
Snow Depth: 5 ins.
BHO SA 1155 150 SCT E250 -BKN 70 213/28/26/3110/016/ FEW SC DSNT
NW-NNW AND OFFSHR DSNT E-SE NEW SNW PST 24 HRS 1.4 INS/ 8/571
4/005 53030 70025 10031 20027
10 A.M.
Weather: Broken cirrus, few stratocumulus distant WSW-NW
Temperature: 37F; Dew Point: 25F; Relative Humidity: 62%
Wind: NNE @ 6 kts, wind light
Sea-level pressure: 1021.3mb; 30.16 in. Hg: rising, then falling
Visibility: 80 miles
3-hr Precip: 0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 E250 BKN 80 213/37/25/0306/016/ FEW SC DSNT WSW-NW
WND LGT/ 8/504 50000
1 P.M.
Weather: Broken cirrus
Temperature: 41F; Dew Point: 24F; Relative Humidity: 50%
Wind: NNE @ 3 kts, wind light and variable
Sea-level pressure: 1020.4 mb; 30.13 in. Hg: falling, then more rapidly
Visibility: 70 miles
6-hr Max temp: 42F
6-hr Min temp: 28F
6-hr Precip: 0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 4 ins.
BHO SA 1755 E250 BKN 70 204/41/24/0303/013/ WND L/V/ 8/004 4/004
58009 10042 20028
——————————
SUMMARY FOR TUESDAY, FEBRUARY 28, 2023
TEMPERATURE (DEGREES F)
MAX…….34 NORMAL…..40
MIN…….25 NORMAL…..23
MEAN……30 NORMAL…..31
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………-1
TOTAL DEPARTURE FOR THE MONTH……………….+132 [+4.5 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………35 DEPARTURE……..+1
TOTAL HEATING UNITS FOR THE MONTH…………..897 DEPARTURE……-132
TOTAL HEATING UNITS FOR THE SEASON…………3720 DEPARTURE……-712
TOTAL HEATING UNITS LAST SEASON TO DATE…….4083 DEPARTURE……-363
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
420C, Contacting, Merlin and Richards are all Main Tower.
420C (Official)…………32 ESE @ 8:42 A.M.
VECTOR #1 (1-Sec)……….33 ESE @ 8:43 A.M.
VECTOR #2 (1-Sec)……….32 ESE @ 8:03 A.M.
DAVIS #1……………….31 E @ 8:42 A.M.
DAVIS #2 ………………32 ESE @ 8:41 A.M.
RMY #1 (Instantaneous)…..34 ESE @ 8:41 A.M.
RMY #2 (Instantaneous)…..35 ESE @ 8:41 A.M.
MERLIN…………………29 ESE
RICHARDS (C5C) (Inst)……34 @ 8:41 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………..
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..25 @ 8:43 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..22 @ 8:43 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………24 ESE @ 8:43 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………23 ESE @ 8:43 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..24 ESE @ 8:43 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..22 ESE @ 8:43 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………24 @ 8:43 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……10.4 E [250 total miles]
VECTOR #1…………….M (Icing)
VECTOR #2…………….M (icing)
DAVIS #1……………..10.3 E
DAVIS #2……………..10.0 E
RMY #1……………….10.5 ENE
RMY #2……………….10.4 ENE
RICHARDS (C5C)………..10.7
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.25 DEPARTURE…..+0.09
TOTAL PRECIPITATION FOR THE MONTH…………..1.86 DEPARTURE…..-2.14
TOTAL PRECIPITATION FOR THE YEAR……………8.65 DEPARTURE…..+0.15
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..1.4 DEPARTURE……+0.8
TOTAL SNOWFALL FOR THE MONTH………………..9.4 DEPARTURE……-8.8
TOTAL SNOWFALL FOR THE SEASON (2022-2023)……24.3 DEPARTURE…..-27.6
——————————
PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/
VEC1: Vector #1 1-second gust
RMY: R.M. Young wind gust recording system (Instantaneous)
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M: Missing data
2/1 30/18/24/-2/T/T/552/92 17 NW VEC1 N/A RMY 20
2/2 38/19/29/+3/0.00/0.0/518/86 25 SW VEC1 N/A RMY 29
2/3 28/-11/9/-17/T/T/557/92 56 WNW VEC1 N/A RMY 64
2/4 14/-14/0/-26/0.00/0.0/473/78 45 NW VEC1 N/A RMY 51
2/5 49/14/32/+5/0.00/0.0/359/59 38 SW VEC1 N/A RMY 43
2/6 47/30/39/+12/0.00/0.0/025/04 28 NE VEC1 N/A RMY 29
2/7 31/22/27/0/0.01/0.1/461/75 29 SSW VEC1 N/A RMY 33
2/8 46/31/39/+12/0.00/0.0/413/67 30 NW VEC1 N/A RMY 34
2/9 49/33/41/+14/T/0.0/149/24 31 SSE VEC1 N/A RMY 32
2/10 60/31/46/+19/0.00/0.0/603/97 43 W VEC1 N/A RMY 51
2/11 43/31/37/+10/0.00/0.0/625/100 41 WNW VEC1 N/A RMY 46
2/12 48/28/38/+10/0.00/0.0/339/54 22 SW VEC1 N/A RMY 24
2/13 42/33/38/+10/0.00/0.0/069/11 28 NE VEC1 N/A RMY 36
2/14 50/34/42/+14/0.00/0.0/475/75 30 NW VEC1 33 NW RMY 35
2/15 56/35/46/+18/0.00/0.0/279/44 39 SSW VEC1 44 SSW RMY 49
2/16 61/50/56/+28/T/0.0/108/17 29 W VEC1 31 W RMY 34
2/17 56/23/40/+11/0.06/0.1/000/00 44 NNW VEC1 46 NNW RMY 46
2/18 39/19/29/0/0.00/0.0/643/100 41 NW VEC1 42 NNW RMY 47
2/19 44/30/37/+8/0.00/0.0/129/20 32 S VEC1 35 S RMY 36
2/20 59/41/50/+21/0.00/0.0/208/32 35 W VEC1 36 W RMY 40
2/21 41/31/36/+7/0.22/1.4/000/00 26 W VEC1 27 W RMY 27
2/22 42/30/36/+6/0.23/0.5/242/37 33 WNW VEC1 35 WNW RMY 36
2/23 32/25/29/-1/0.91/3.5/000/00 29 NNW VEC1 M M RMY 21
2/24 33/16/25/-5/0.01/T/290/44 39 NW VEC1 M M RMY 47
2/25 19/9/14/-16/0.02/0.5/000/00 17 NNW VEC1 19 NNW RMY 19
2/26 35/16/26/-5/T/T/060/09 22 NNE VEC1 23 W RMY 24
2/27 33/22/28/-3/0.00/0.0/394/59 22 NNW VEC1 23 ESE RMY 25
2/28 34/25/30/-1/0.40/3.3/000/00 32 ESE VEC1 33 ESE RMY 34
3/1 The low since midnight is 27, the daily normal low is 23F
DAILY RECORDS
02/03/2023: NEW RECORD MINIMUM TEMPERATURE OF -11F,
THIS BEATS THE OLD RECORD OF -7F SET IN 1955
02/04/2023: NEW RECORD MINIMUM TEMPERATURE OF -14F,
THIS BEATS THE OLD RECORD OF -4F SET IN 1886 AND 1908
02/10/2023: NEW RECORD MAXIMUM TEMPERATURE OF 60F,
THIS BEATS THE OLD RECORD OF 56F SET IN 1909
02/16/2023: NEW RECORD HIGH MINIMUM TEMPERATURE OF 50F,
THIS BEATS THE OLD RECORD OF 41F SET IN 1976. THIS ALSO
TIES THE WARMEST MINIMUM TEMPERATURE FOR FEBRUARY SET
IN 2018
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR MARCH 1
HIGH 62 IN 1972
LOW -3 IN 1886
PRECIP 1.65 INS. IN 1900
SNOWFALL 9.4 INS. IN 1949
PEAK GUST 78 WSW IN 1966
RECORDS FOR MARCH 2
HIGH 63 IN 2004
LOW -3 IN 1886
PRE 3.47 INS. IN 2018
SNOW 8.2 INS. IN 2009
WIND 75 MPH NW IN 1966
TODAY’S REPORT PREPARED BY: Matt Douglas
