Monday, April 14, 2025
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
MONDAY, APRIL 14, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0504E
SUNSET: 1825E
SUNSHINE RETURNS TODAY WITH MUCH MILDER TEMPERATURES….
It’s nice to finally dry out today after the wet and dreary weekend
we just experienced. Plenty of sunshine has been theme today with
only some high thin cirrus clouds moving across the sky.
The best news today is the return to above normal temperatures.
Readings have reached the mid 60s early this afternoon, which
feels great following the chilly readings of the past few days.
Dew point values have been generally hanging out in the low 30s,
so the air mass has dried out nicely.
Winds have been on the brisk side today out of mainly the north-
west. The average speed for the day so far is around 12mph with
frequent gusts exceeding 20mph. The peak gust for the day so far
is 28mph, which occurred before 10am this morning.
Visibility has been excellent all day, with a view of around 70
miles.
The maximum temperature for today is 65F degrees, which is 9
degrees above the normal high of 56F. The minimum temperature
since midnight is 35F degrees, which is 2 degrees below the
normal low of 37F.
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Today’s Observations:
7 A.M.
Weather: Clear, few altocumulus/castellanus distant NE-ESE,
few cirrus distant NNE-ESE and distant SSE-SW-NW
Temperature: 42F; Dew Point: 33F; Relative Humidity: 71%
Wind: NW @ 9 kts
Sea-level pressure: 1010.4 mb; 29.84 in. Hg: steady, then rising
Visibility: 70 miles
6-hr Max temp: 42F
6-hr Min temp: 35F
24-hr Precip: 0.04 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 CLR 70 104/42/33/3209/984/ FEW AC/ACC DSNT NE-ESE
FEW CI DSNT NNE-ESE AND DSNT SSE-SW-NW/ 8/081 53014 70004 10042 20035
10 A.M.
Weather: Scattered cirrus, few stratocumulus distant ESE
Temperature: 56F; Dew Point: 32F; Relative Humidity: 41%
Wind: NNW @ 14 kts
Sea-level pressure: 1009.5 mb; 29.81 in. Hg: falling, then steady
Visibility: 70 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 250 SCT 70 095/56/32/3314/981/ FEW SC DSNT ESE/ 8/504 56009
1 P.M.
Weather: Scattered cirrus
Temperature: 64F Dew Point: 33F; Relative Humidity: 31%
Wind: WNW @ 9G17 kts
Sea-level pressure: 1008.2 mb; 29.77 in. Hg: falling, then more slowly
Visibility: 70 miles
6-hr Max temp: 65F
6-hr Min temp: 42F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 250 SCT 70 082/64/33/3009G17/977/ 8/004 56013 10065 20042
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SUMMARY FOR SUNDAY, APRIL 13, 2025
TEMPERATURE (DEGREES F)
MAX…….42 NORMAL…..55
MIN…….35 NORMAL…..37
MEAN……39 NORMAL…..46
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………-7
TOTAL DEPARTURE FOR THE MONTH……………………..-37 [-3.0 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY…………….26 DEPARTURE……..+7
TOTAL HEATING UNITS FOR THE MONTH……………316 DEPARTURE…….+36
TOTAL HEATING UNITS FOR THE SEASON………….5245 DEPARTURE……-382
TOTAL HEATING UNITS LAST SEASON TO DATE……..4902 DEPARTURE……+343
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all on Main Tower.
E=Estimated
F420C (Official)………..38 NE @ 12:20 A.M.
VECTOR #1 (1-Sec)……….38 NE @ 12:35 A.M.
VECTOR #2 (1-Sec)……….39 NE @ 12:35 A.M.
DAVIS #1……………….37 NE @ 12:35 A.M.
DAVIS #2 ………………35 ENE @ 12:34 A.M.
RMY #1 (Instantaneous)…..40 NE @ 12:35 A.M.
RMY #2 (Instantaneous)…..41 NE @ 12:35 A.M.
MERLIN………………….M
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………24 NE @ 12:43 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..23 @ 12:34 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..23 @ 12:34 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………24 NE @ 12:38 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………24 NE @ 12:34 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..22 NE @ 12:38 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..23 NE @ 12:34 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..10.5 N [253 total miles]
VECTOR #1………………10.8
VECTOR #2………………10.9
DAVIS #1……………….10.6 NNE
DAVIS #2……………….10.3 NNE
RMY #1…………………10.4 N
RMY #2…………………10.7 N
RICHARDS (C5C)…………..OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.04 DEPARTURE…..-0.14
TOTAL PRECIPITATION FOR THE MONTH…………..2.58 DEPARTURE…..+0.33
TOTAL PRECIPITATION FOR THE YEAR (2025)…….13.29 DEPARTURE…..-2.98
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE MONTH………………..1.7 DEPARTURE……-0.3
TOTAL SNOWFALL FOR THE SEASON (2024-2025)……35.8 DEPARTURE…..-33.1
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PRELIMINARY CLIMATE SUMMARY FOR APRIL 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
4/1 55/32/44/+3/0.17/0.0/512/67 38 NW VEC1 38 NW RMY 40
4/2 42/27/35/-6/0.11/T/584/76 29 NNW VEC1 28 NNW RMY 29
4/3 62/32/47/+5/0.31/0.0/000/00 38 SW VEC1 38 SW RMY 39
4/4 69/47/58/+16/0.00/0.0/456/59 31 NW VEC1 31 NW RMY 30
4/5 47/36/42/-1/0.49/0.0/000/00 25 ESE VEC1 29 SE RMY 25
4/6 51/37/44/+1/0.20/0.0/016/02 22 NNW VEC1 21 NNW RMY 21
4/7 45/34/40/-4/0.18/T/000/00 24 E VEC1 23 NNE RMY 23
4/8 40/26/33/-11/0.10/0.1/196/25 51 W VEC1 48 W RMY 51
4/9 46/24/35/-9/0.00/0.0/755/96 36 WNW VEC1 33 NW RMY 36
4/10 49/29/39/-6/0.01/0.0/569/72 23 SSW VEC1 23 SSW RMY 25
4/11 45/31/38/-7/0.39/1.2/024/03 25 ENE VEC1 27 ENE RMY 26
4/12 36/33/35/-11/0.46/0.4/000/00 39 ENE VEC1 40 E RMY 42
4/13 42/35/39/-7/0.16/0.0/000/00 38 NE VEC1 38 NE RMY 40
4/14 The low since midnight is 35F, the daily normal low is 37F.
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APRIL 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 APRIL 14
HIGH 88 IN 2023
LOW 21 IN 1923
PRECIP 1.86 IN. IN 1935
SNOWFALL 8.4 IN. IN 1953
PEAK GUST 71e MPH W IN 1943
RECORDS FOR APRIL 15
HIGH 81 IN 1896
LOW 23 IN 1943
PRECIP 1.75 IN. IN 2007
SNOWFALL 1.0 IN. IN 1916, 1962
PEAK GUST 66 MPH E IN 2007
TODAY’S REPORT PREPARED BY: MFD
