Wednesday, February 28, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
WEDNESDAY, FEBRUARY 28, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0622E
SUNSET: 1732E
WINDY AND UNSEASONABLY MILD WITH RAIN SHOWERS…
Skies have been cloudy all day with rain showers moving through
the region. While the rain has been falling for several hours
going back to last evening, for the most part it’s been on the
light side. 0.29″ was measured through 7am this morning, with
only an additional 0.06″ falling through 1pm.
Temperatures have remained on the mild side following yesterday’s
record warmth. Readings today have been in the low 50s most of
the day. The lowest temperature for the day so far occurred back
at midnight with a reading of 49F. If this low holds for the
calendar day, it will establish a new record high minimum for the
date, beating out 47F set in 1910! At about 2:40pm yesterday, the
mercury reached 62F (61.9) degrees which set a new record high for
February 27. This beat the old record of 61F set in 1976.
The wind has been quite busy today out of the south-southwest.
The average speed for the day so far has been around 27mph. The
peak gust thus far is around 55mph, which occurred just before
7am this morning. We have had several gusts today in the 50-55mph
range, mainly during the morning.
Visibility has been limited today as one would expect with the
rain and fog. Generally 2-4 miles all morning, but dipped to
around a 1/4 mile early this afternoon as the ceiling lowered
onto the summit.
The maximum temperature so far today is 53F degrees, which is 13
degrees above the normal high of 40F. The minimum temperature since
midnight is 49F degrees, which is 27 degrees above the normal low
of 22F.
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Today’s Observations:
7 A.M.
Weather: Broken stratus fractus, overcast stratus, light rain showers,
few lower stratus fractus all quadrants
Temperature: 52F; Dew Point: 52F; Relative Humidity: 100%
Wind: S @ 27G43 kts, peak wind S 50mph at 6:48 A.M.
Sea-level pressure: 1009.4 mb; 29.81 in. Hg: rising then falling
Visibility: 4 miles, fog
6-hr Max temp: 52F
6-hr Min temp: 49F
24-hr Precip: 0.29 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 E5 BKN 12 OVC 4RW-F 094/52/52/1927G43/981/ FEW LWR STFRA
ALQDS PK WND 1943/48/ 8/7// 58015 6014/ 70029 10052 20049
10 A.M.
Weather: Overcast stratus, light rain showers, stratus fractus drifting
over summit
Temperature: 51F; Dew Point: 51F; Relative Humidity: 100%
Wind: SSW @ 21G33 kts, peak wind SSW 48mph at 9:18 A.M.
Sea-level pressure: 1007.8 mb; 29.76 in. Hg: falling, then more rapidly
Visibility: 2 miles, fog
3-hr Precip: 0.04 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E1 OVC 2RW-F 078/51/51/2021G33/976/ STFRA DRFTG OVR SMT
PK WND 2042/18/ 8/7// 58016 6004/
1 P.M.
Weather: Sky obscured, vertical visibility 200ft
Temperature: 51F; Dew Point: 51F; Relative Humidity: 100%
Wind: SSW @ 22G35 kts, peak wind SSW 44mph at 12:30 P.M.
Sea-level pressure: 1005.4 mb; 29.69 in. Hg: falling, then more rapidly
Visibility: 1/4 mile, fog
6-hr Max temp: 53F
6-hr Min temp: 51F
6-hr Precip: 0.06 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 X W2 1/4F 054/51/51/2022G35/969/ RW-B18E23 PK WND 2038/30/
8//// 58024 6006/ 10053 20051
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SUMMARY FOR TUESDAY, FEBRUARY 27, 2024
TEMPERATURE (DEGREES F)
MAX…….62R NORMAL…..40
MIN…….29 NORMAL…..22
MEAN……46 NORMAL…..31
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………..+15
TOTAL DEPARTURE FOR THE MONTH………………….+129 [+4.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………19 DEPARTURE…….-15
TOTAL HEATING UNITS FOR THE MONTH…………..866 DEPARTURE……-129
TOTAL HEATING UNITS FOR THE SEASON…………3832 DEPARTURE……-566
TOTAL HEATING UNITS LAST SEASON TO DATE…….3685 DEPARTURE……+147
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all Main Tower.
E=Estimated
F420C (Official)……….E42 S @ 11:46 P.M.
VECTOR #1 (1-Sec)……….42 S @ 11:46 P.M.
VECTOR #2 (1-Sec)……….41 S @ 11:46 P.M.
DAVIS #1……………….44 S @ 07:29 P.M.
DAVIS #2 ………………54 S @ 11:46 P.M.
RMY #1 (Instantaneous)…..42 S @ 11:46 P.M.
RMY #2 (Instantaneous)…..43 S @ 11:46 P.M.
MERLIN…………………M
RICHARDS (C5C) (Inst)……41 @ 11:46 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………31 S @ 11:55 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..31 @ 11:36 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..32 @ 11:47 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………31 S @ 11:37 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………37 S @ 11:55 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..29 S @ 11:55 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..33 S @ 11:47 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………29 @ 11:36 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……13.3 SSW [320 total miles]
VECTOR #1…………….13.6
VECTOR #2…………….13.9
DAVIS #1……………..13.0 S
DAVIS #2……………..14.6 S
RMY #1……………….13.3 SSW
RMY #2……………….14.1 S
RICHARDS (C5C)………..13.3
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.29 DEPARTURE…..+0.13
TOTAL PRECIPITATION FOR THE MONTH…………..1.09 DEPARTURE…..-2.75
TOTAL PRECIPITATION FOR THE YEAR (2024)…….10.33 DEPARTURE…..+1.99
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH………………..4.7 DEPARTURE…..-12.9
TOTAL SNOWFALL FOR THE SEASON (2023-2024)……25.6 DEPARTURE…..-25.7
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PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN)/SUN(%)/PEAK GUST/VEC1/RMY GUST
PEAK GUST: F420C (Official)
VEC1: Vector #1 1-second gust
RMY: R.M. Young #1 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 40/30/35/+9/0.00/0.0/012/02 25 SW VEC1 24 SW RMY 26
2/2 39/31/35/+9/0.03/T/000/00 23 N VEC1 24 N RMY 25
2/3 35/26/31/+5/0.00/0.0/338/56 26 N VEC1 26 NNW RMY 28
2/4 39/20/30/+4/0.00/0.0/607/100 28 NNW VEC1 28 NNW RMY 27
2/5 39/22/31/+4/0.00/0.0/597/98 29 N VEC1 29 N RMY 30
2/6 35/26/31/+4/0.00/0.0/251/41 26 N VEC1 26 N RMY 26
2/7 39/26/33/+6/0.00/0.0/436/71 21 NE VEC1 21 NE RMY 24
2/8 44/29/37/+10/0.00/0.0/457/74 16 S VEC1 16 S RMY 16
2/9 47/30/39/+12/0.00/0.0/229/37 31 SSW VEC1 31 SSW RMY 31
2/10 58/35/47/+20/0.02/0.0/385/62 26 NW VEC1 26 NW RMY 30
2/11 45/34/40/+13/0.00/0.0/119/19 30 NW VEC1 30 NW RMY 31
2/12 47/29/38/+10/0.00/0.0/470/75 21 N VEC1 20 N RMY 20
2/13 35/25/30/+2/0.65/4.3/000/00 40 NNE VEC1 41 NNE RMY M
2/14 29/21/25/-3/0.00/0.0/562/89 53 NW VEC1 53 NW RMY 54
2/15 38/18/28/0/0.03/0.4/527/83 37 SW VEC1 36 SW RMY 37
2/16 37/26/32/+4/T/T/599/94 50 WNW VEC1 47 WNW RMY 51
2/17 33/21/27/-2/T/T/128/20 36 WNW VEC1 38 WNW RMY 38
2/18 35/17/26/-3/0.00/0.0/418/65 39 SW VEC1 40 SW RMY 41
2/19 36/21/29/0/0.00/0.0/639/99 29 WNW VEC1 29 WNW RMY 28
2/20 36/16/26/-3/0.00/0.0/648/100 22 N VEC1 22 N RMY 21
2/21 39/24/32/+3/0.00/0.0/553/85 23 ESE VEC1 23 ESE RMY 22
2/22 42/24/33/+3/T/0.0/…/.. 26 SSW VEC1 26 SSW RMY 25
2/23 41/33/37/+7/0.07/0.0/…/.. 25 SSW VEC1 26 SSW RMY 27
2/24 37/17/27/-3/0.00/0.0/…/.. 28 NW VEC1 29 NNW RMY 29
2/25 37/11/24/-6/0.00/0.0/…/.. 26 SSW VEC1 26 NW RMY 27
2/26 54/26/40/+9/0.00/0.0/…/.. 31 SE VEC1 32 SW RMY 33
2/27 62/29/46/+15/0.13/0.0/…/.. 42 S VEC1 42 S RMY 42
2/28 The low since midnight is 49F, the daily normal low is 22F
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FEBRUARY DAILY RECORDS TO DATE
2/27 MAXIMUM TEMPERATURE OF 62F SETS A NEW DAILY RECORD,
BEATING THE OLD RECORD OF 61F SET IN 1976
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR FEBRUARY 28
HIGH 62F IN 1976
LOW -2F IN 1907,1934
PRECIP 1.79 INCHES IN 1958
SNOWFALL 8.5 INCHES IN 2005
PEAK GUST 88e MPH SSW IN 1943
LEAP YEAR:
RECORDS FOR FEBRUARY 29
HIGH 63F IN 2016
LOW 4F IN 1992
PRECIP 0.64 INCHES IN 1968
SNOWFALL 3.5 INCHES IN 1968
PEAK GUST 60 MPH NE IN 1968
TODAY’S REPORT PREPARED BY: Matt Douglas
