Sunday, March 31, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, MARCH 31, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0527E
SUNSET: 1810E
MARCH IS GOING OUT LIKE A LAMB ON THIS EASTER SUNDAY…
Happy Easter! It’s a rather nice day as the month ends on a quiet
note. Sunshine mixed with various clouds types is making for a
decorated sky. Considering the wet weather we had recently,
yesterday and today have been a very nice treat, especially for
over a weekend!
Temperatures are above normal for the date, so this just adds to
the enjoyment of the day. Readings rose rapidly this morning,
reaching into the upper 50s by early this afternoon.
Winds were on the light side early this morning, but have become
a bit brisk as we approached and, then entered the afternoon hours.
The increase in wind is due to mixing from aloft. Gusts have reached
between 25-30mph so far. The average speed to this point is only
around 8mph however.
As the air is dry, visibility has been great today, generally
holding between 70-80 miles all day!
The maximum temperature so far today is 59F degrees, which is 10
degrees above the normal high of 49F. The minimum temperature since
midnight is 39F degrees, which is 7 degrees above the normal low of
32F.
It should come as no surprise that March has been quite wet!
Through yesterday, we have received 9.49″ for the month to date.
This places us at the 6th wettest March on record. See below for the
rankings as compiled by our Chief Scientist, Mike Iacono.
BHO Highest March Precipitation, inches (1886-2024):
1) 18.81 in 2010
2) 13.07 in 2001
3) 10.96 in 1968
4) 10.02 in 1983
5) 9.53 in 1953
6) 9.49 in 2024 (through 3/30)
7) 9.00 in 1984
8) 8.72 in 1993
9) 8.68 in 2018
10) 8.09 in 1956
Despite a February that was quite dry, the combination of a wet
January and March have also placed us within the top 10 for wettest
Jan-Mar periods. With a total of 20.05″ since January 1st as of 7am
this morning, this lands us in 6th place for record wettest January-
March. Below are the rankings, again compiled by our Chief Scientist,
Mike Iacono.
BHO Highest Jan-Mar Precipitation, inches (1886-2024):
1) 27.91 in 2010
2) 23.18 in 1956
3) 21.70 in 1983
4) 21.21 in 1958
5) 21.03 in 1953
6) 20.05 in 2024 (through 3/30)
7) 20.00 in 1998
8) 19.70 in 1936
9) 19.61 in 1984
10) 19.53 in 1999
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Today’s Observations:
7 A.M.
Weather: Broken altocumulus, overcast altostratus, few breaks in
overcast distant W-NNE and distant ENE-SE, virga distant NNE-NE
Temperature: 40F; Dew Point: 24F; Relative Humidity: 51%
Wind: NNW @ 5 kts, wind light
Sea-level pressure: 1009.8 mb; 29.82 in. Hg: steady, then rising
Visibility: 80 miles
6-hr Max temp: 43F
6-hr Min temp: 39F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 E70 BKN 90 OVC 80 098/40/24/3405/982/ FEW BINOVC DSNT
W-NNE AND DSNT ENE-SE VIRGA DSNT NNE-NE WND LGT/ 8/07/ 53023
10043 20039
10 A.M.
Weather: Scattered stratocumulus, thin broken cirrus
Temperature: 49F; Dew Point: 28F; Relative Humidity: 43%
Wind: WNW @ 9G15 kts
Sea-level pressure: 1010.0 mb; 29.83 in. Hg: rising, then falling
Visibility: 70 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 45 SCT 250 -BKN 70 100/49/28/2909G15/983/ 8/501 50002
1 P.M.
Weather: Scattered stratocumulus, broken cirrus
Temperature: 57F; Dew Point: 29F; Relative Humidity: 34%
Wind: NW @ 16G25 kts, peak wind W 31mph @ 12:08pm
Sea-level pressure: 1009.5 mb; 29.81 in. Hg: rising, then falling
Visibility: 70 miles
6-hr Max temp: 59F
6-hr Min temp: 40F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 55 SCT 250 BKN 70 095/57/29/3116G25/981/ PK WND 2827/08/
8/504 58005 10059 20040
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SUMMARY FOR SATURDAY, MARCH 30, 2024
TEMPERATURE (DEGREES F)
MAX…….55 NORMAL…..49
MIN…….34 NORMAL…..31
MEAN……45 NORMAL…..40
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………+5
TOTAL DEPARTURE FOR THE MONTH………………….+151 [+4.8 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………20 DEPARTURE……..-5
TOTAL HEATING UNITS FOR THE MONTH…………..737 DEPARTURE……-153
TOTAL HEATING UNITS FOR THE SEASON…………4625 DEPARTURE……-697
TOTAL HEATING UNITS LAST SEASON TO DATE…….4506 DEPARTURE……+119
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)……….E45 NW @ 07:35 A.M.
VECTOR #1 (1-Sec)……….44 NW @ 07:23 A.M.
VECTOR #2 (1-Sec)……….48 NW @ 07:23 A.M.
DAVIS #1……………….43 WNW @ 08:11 A.M.
DAVIS #2 ………………41 NW @ 07:58 A.M.
RMY #1 (Instantaneous)…..47 NW @ 07:55 A.M.
RMY #2 (Instantaneous)…..48 NW @ 07:23 A.M.
MERLIN…………………42 NW
RICHARDS (C5C) (Inst)……46 @ 07:55 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………30 WNW @ 08:03 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..28 @ 07:56 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..32 @ 08:06 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………30 WNW @ 07:53 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………31 NW @ 08:06 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..28 NW @ 08:01 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..31 WNW @ 08:06 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………28 @ 08:01 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……16.9 WNW [406 total miles]
VECTOR #1…………….16.0
VECTOR #2…………….17.8
DAVIS #1……………..16.9 WNW
DAVIS #2……………..17.5 NW
RMY #1……………….15.3 WNW
RMY #2……………….17.3 WNW
RICHARDS (C5C)………..16.3
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.17
TOTAL PRECIPITATION FOR THE MONTH…………..9.49 DEPARTURE…..+4.14
TOTAL PRECIPITATION FOR THE YEAR (2024)…….20.05 DEPARTURE…..+6.20
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.2
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE…..-14.7
TOTAL SNOWFALL FOR THE SEASON (2023-2024)……26.1 DEPARTURE…..-40.5
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PRELIMINARY CLIMATE SUMMARY FOR MARCH 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
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
3/1 41/18/30/-1/0.00/0.0/649/96 30 NW VEC1 30 WNW RMY 33
3/2 50/32/41/+9/1.16/0.0/000/00 44 SSE VEC1 46 SE RMY 42
3/3 55/42/49/+17/0.24/0.0/130/19 32 SSE VEC1 33 SSE RMY 32
3/4 49/36/43/+11/0.01/0.0/116/17 24 ENE VEC1 22 ENE RMY 23
3/5 42/36/39/+7/0.14/0.0/000/00 21 E VEC1 21 E RMY 21
3/6 51/39/45/+12/0.44/0.0/000/00 28 NE VEC1 28 NE RMY 29
3/7 42/37/40/+7/1.06/0.0/000/00 44 NNE VEC1 44 NNE RMY 42
3/8 45/32/39/+6/0.00/0.0/682/98 35 NNE VEC1 36 NNE RMY 38
3/9 40/32/36/+3/0.21/0.0/000/00 32 E VEC1 32 E RMY 31
3/10 51/36/44/+10/1.07/0.0/245/35 45 WNW VEC1 46 SE RMY 45
3/11 43/30/37/+3/T/T/515/73 53 NW VEC1 54 NW RMY 58
3/12 54/33/44/+10/0.00/0.0/680/96 43 NW VEC1 41 NW RMY 45
3/13 54/33/44/+10/0.00/0.0/667/94 26 SSE VEC1 25 NNW RMY 25
3/14 58/36/47/+12/0.00/0.0/627/88 23 ENE VEC1 22 NE RMY 21
3/15 44/37/41/+6/0.02/0.0/000/00 24 N VEC1 23 NNW RMY 25
3/16 58/36/47/+12/0.00/0.0/510/71 29 S VEC1 26 S RMY 26
3/17 59/40/50/+14/0.04/0.0/390/54 38 NW VEC1 38 NW RMY 40
3/18 49/33/41/+5/0.00/0.0/558/77 38 W VEC1 37 W RMY 38
3/19 46/30/38/+2/0.00/0.0/575/79 44 NW VEC1 43 NW RMY 46
3/20 51/29/40/+3/0.11/T/190/26 50 WNW VEC1 50 WNW RMY 51
3/21 38/24/31/-6/T/T/704/96 53 WNW VEC1 53 WNW RMY 52
3/22 40/21/31/-6/T/T/427/58 29 WNW VEC1 29 WNW RMY 32
3/23 44/30/37/-1/2.49/T/000/00 48 NNW VEC1 47 NNW RMY 51
3/24 41/23/32/-6/0.00/0.0/460/62 38 NNW VEC1 39 NNW RMY 42
3/25 39/31/25/-3/0.00/0.0/343/46 41 ENE VEC1 41 NE RMY 40
3/26 36/32/34/-5/0.15/0.0/000/00 38 NE VEC1 38 NE RMY 39
3/27 53/36/45/+6/0.10/0.0/038/05 23 NE VEC1 24 NE RMY 23
3/28 49/42/46/+7/1.72/0.0/000/00 23 NNW VEC1 23 NNW RMY 22
3/29 50/34/42/+2/0.53/T/136/18 48 NW VEC1 48 NW RMY 52
3/30 55/34/45/+5/0.00/0.0/729/96 45 NW VEC1 44 NW RMY 47
3/31 The low since midnight is 39F, the daily normal low is 32F.
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MARCH DAILY RECORDS TO DATE
NONE…
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR MARCH 31
HIGH 89 IN 1998 [RECORD HIGH FOR MONTH]
LOW 16 IN 1923
PRECIP 2.89 IN 1987
SNOWFALL 15.0 IN 1997
PEAK GUST 81 MPH SSE IN 1987
RECORDS FOR APRIL 1
HIGH 74 IN 1967
LOW 6 IN 1923 [RECORD FOR MONTH]
PRECIP 3.47 IN. IN 2004 [RECORD FOR MONTH]
SNOWFALL 15.0 IN. IN 1997 [RECORD FOR MONTH]
PEAK GUST 75 MPH SSW IN 1962
TODAY’S REPORT PREPARED BY: Matt Douglas
