Friday, March 28, 2025
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
FRIDAY, MARCH 28, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0533E
SUNSET: 1806E
MOSTLY CLOUDY SKIES, BREEZY AND MILD TODAY….
Skies have been mostly cloudy today, with filtered sunshine
occurring throughout the day. Winds have been on the gusty side,
with plenty of dry air in the atmosphere.
Temperatures have been a bit more mild today, with an overnight
low a few degrees above normal. Mild temperatures and lower dew
points have made it feel a lot more like spring today.
During the overnight hours, winds were out of the WSW and then
shifted this morning to the WNW. The average speed for the day
so far is around 15mph, mainly out of the west-northwest. The
peak gust so far is around 37mph, which occurred just after
8:30am this morning.
Visibility has varied from 50-70 miles today, with an improvement
of visibility later in the morning as the humidity and dew points
began to drop.
The maximum temperature for today is 57F degrees, which is 9 degrees
above the normal high of 48F. The minimum temperature since midnight
is 35F degrees, which is 4 degrees above the normal low of 31F.
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Today’s Observations:
7 A.M.
Weather: Broken cirrostratus, few altocumulus all quadrants
Temperature: 41F; Dew Point: 22F; Relative Humidity: 46%
Wind: WSW @ 13 kts
Sea-level pressure: 1019.3 mb; 30.10 in. Hg: falling, then rising
Visibility: 50 miles
6-hr Max temp: 41F
6-hr Min temp: 35F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 E220 BKN 50 193/41/22/2513/010/ FEW AC ALQDS/ 8/056 53006
10041 20035
10 A.M.
Weather: Broken altocumulus, broken cirrostratus, sun dimly visible
Temperature: 49F; Dew Point: 19F; Relative Humidity: 30%
Wind: WNW @ 12 kts, peak wind WNW 33mph at 9:31 A.M.
Sea-level pressure: 1020.2 mb; 30.13 in. Hg: rising, then more slowly
Visibility: 60 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E90 BKN 250 BKN 220 BKN 60 202/49/19/3012/013/ SUN DIMLY VSBL
PK WND 3029/31/ 8/056 51009
1 P.M.
Weather: Broken altocumulus, broken cirrostratus
Temperature: 56F; Dew Point: 18F; Relative Humidity: 22%
Wind: WNW @ 9 kts
Sea-level pressure: 1019.1 mb; 30.09 in. Hg: falling, then more rapidly
Visibility: 60 miles
6-hr Max temp: 57F
6-hr Min temp: 41F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 E85 BKN 220 BKN 60 191/56/18/2909/009/ 8/056 58011
10057 20041
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SUMMARY FOR THURSDAY, MARCH 27, 2025
TEMPERATURE (DEGREES F)
MAX…….49 NORMAL…..48
MIN…….27 NORMAL…..30
MEAN……38 NORMAL…..39
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..-1
TOTAL DEPARTURE FOR THE MONTH……………………+152 [+5.4 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY…………….27 DEPARTURE……..+1
TOTAL HEATING UNITS FOR THE MONTH……………660 DEPARTURE……-154
TOTAL HEATING UNITS FOR THE SEASON………….4841 DEPARTURE……-405
TOTAL HEATING UNITS LAST SEASON TO DATE……..4563 DEPARTURE……+278
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)………..30 WNW @ 03:36 P.M.
VECTOR #1 (1-Sec)……….30 W @ 04:29 P.M.
VECTOR #2 (1-Sec)……….32 WNW @ 03:35 P.M.
DAVIS #1……………….31 W @ 03:35 P.M.
DAVIS #2 ………………30 WNW @ 03:35 P.M.
RMY #1 (Instantaneous)…..33 WNW @ 03:35 P.M.
RMY #2 (Instantaneous)…..32 W @ 04:29 P.M.
MERLIN…………………30 NW
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………21 WNW @ 03:36 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..21 @ 03:36 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..23 @ 03:36 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………23 W @ 04:31 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………22 WNW @ 03:36 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..21 WNW @ 03:36 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..22 WNW @ 03:36 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..12.1 WNW [291 total miles]
VECTOR #1………………11.9
VECTOR #2………………12.8
DAVIS #1……………….12.4 WNW
DAVIS #2……………….12.6 NW
RMY #1…………………11.4 WNW
RMY #2…………………12.4 WNW
RICHARDS (C5C)…………..OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.18
TOTAL PRECIPITATION FOR THE MONTH…………..4.53 DEPARTURE…..-0.30
TOTAL PRECIPITATION FOR THE YEAR (2025)…….10.18 DEPARTURE…..-3.15
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.3
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE…..-13.9
TOTAL SNOWFALL FOR THE SEASON (2024-2025)……34.1 DEPARTURE…..-31.7
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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
3/1 50/21/36/+5/T/T/081/12 46 NW VEC1 46 NW RMY 49
3/2 28/14/21/-11/0.00/0.0/672/99 41 NW VEC1 42 NW RMY 43
3/3 31/8/20/-12/0.00/0.0/667/98 28 NW VEC1 28 NW RMY 31
3/4 48/23/36/+4/0.00/0.0/390/57 41 SW VEC1 42 SW RMY 43
3/5 54/41/48/+16/0.52/0.0/021/03 50 SSW VEC1 50 SSW RMY 55
3/6 55/32/44/+11/0.66/T/014/02 69 S VEC1 69 S RMY 68
3/7 41/25/33/0/T/T/638/92 60 WNW VEC1 61 WNW RMY 64
3/8 40/27/34/+1/0.00/0.0/619/89 55 W VEC1 55 W RMY 58
3/9 45/25/35/+2/0.00/0.0/544/78 40 W VEC1 39 W RMY 42
3/10 60/33/47/+13/0.00/0.0/680/97 38 WNW VEC1 38 WNW RMY 39
3/11 62/37/50/+16/0.00/0.0/676/96 39 SSW VEC1 40 SSW RMY 40
3/12 48/32/40/+6/T/T/544/77 29 N VEC1 29 N RMY 29
3/13 46/32/39/+5/0.00/0.0/483/68 25 ESE VEC1 26 ESE RMY 25
3/14 54/33/44/+9/0.00/0.0/570/80 22 SSW VEC1 22 SSW RMY 22
3/15 59/37/48/+13/0.00/0.0/358/50 28 S VEC1 28 S RMY 28
3/16 67/44/56/+21/0.05/0.0/136/19 56 SSW VEC1 58 SSW RMY 58
3/17 58/38/48/+12/2.12/0.0/000/00 60 SSW VEC1 60 SSW RMY 60
3/18 48/34/41/+5/0.00/0.0/362/50 31 NNW VEC1 31 NNW RMY 32
3/19 52/34/43/+7/0.00/0.0/662/91 18 NE VEC1 18 NE RMY 17
3/20 55/36/46/+9/0.03/0.0/044/06 30 S VEC1 30 S RMY 30
3/21 46/36/41/+4/0.36/0.0/220/30 48 NW VEC1 49 NW RMY 54
3/22 62/33/48/+11/T/0.0/545/74 53 WNW VEC1 52 WNW RMY 58
3/23 44/25/35/-3/0.00/0.0/694/94 39 WNW VEC1 39 NW RMY 40
3/24 43/31/37/-1/0.79/0.0/000/00 35 S VEC1 35 S RMY 36
3/25 53/33/43/+5/0.00/0.0/558/75 32 WSW VEC1 33 WSW RMY 34
3/26 51/36/44/+5/0.00/0.0/217/29 25 WNW VEC1 25 NW RMY 27
3/27 49/27/38/-1/0.00/0.0/…/.. 30 WNW VEC1 30 W RMY 33
3/28 The low since midnight is 35F, the daily normal low is 30F.
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MARCH DAILY RECORDS TO DATE
3/16 RECORD HIGH MINIMUM TEMP OF 44F;
OLD RECORD WAS 43F IN 1921, 1973
3/17 RECORD PRECIPITATION AMOUNT OF 2.12 INS;
OLD RECORD WAS 1.97 INS IN 1968
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR MARCH 28
HIGH 86 IN 1998
LOW 7 IN 1923
PRECIP 2.31 INS. IN 1932
SNOWFALL 5.0 INS. IN 2015
PEAK GUST 60e MPH NW IN 1944, 60 WSW IN 1991
RECORDS FOR MARCH 29
HIGH 85 IN 1945
LOW -2 IN 1923
PRECIP 2.78 INS. IN 1984
SNOWFALL 13.5 INS. IN 1984
PEAK GUST 95 MPH ENE IN 1984
TODAY’S REPORT PREPARED BY: Amanda Joly
