Sunday, March 30, 2025
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, MARCH 30, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0530E
SUNSET: 1808E
OVERCAST SKIES WITH MORNING RAIN MOVING OUT EARLY….
Yesterday’s rain system that moved through netted us a total of
0.14 inches of rain yesterday and 0.02 inches of rain for today.
As of 1pm today, we are -0.49 inches for the month and -3.34 inches
for the season in liquid precipitation.
Temperatures were just warm enough to bring all liquid precipitation
instead of snow or sleet in our area last night and this morning. Our
overnight low reached 32F before slowly warming to 41F by the early
afternoon hours. Even though we have recovered somewhat in temperatures
it still feels pretty raw out there, mostly due to the higher dew point
values and overcast conditions.
The wind has been relatively light today and out of the east changing
to a more ESE direction by late morning. The average wind speed so far
is about 8 mph with a peak gust of 23mph, which occurred just after 9am
this morning.
Visibility has been impacted due to fog and higher dew point values.
We have been holding at about 30 miles for the majority of the day.
The maximum temperature for today is 41F degrees, which is 8 degrees
below the normal high of 49F. The minimum temperature since midnight
is 32F degrees, which is 1 degree above the normal low of 31F.
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Today’s Observations:
7 A.M.
Weather: Overcast stratus
Temperature: 33F; Dew Point: 33F; Relative Humidity: 100%
Wind: E @ 8 kts
Sea-level pressure: 1025.1 mb; 30.27 in. Hg: falling, then rising
Visibility: 30 miles, thin fog all quadrants
6-hr Max temp: 33F
6-hr Min temp: 32F
24-hr Precip: 0.10 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 E10 OVC 30 251/33/33/0808/027/ THN F ALQDS R-E02B26E45/
8/6// 53009 70010 6002/ 10033 2032
10 A.M.
Weather: Overcast stratus
Temperature: 37F; Dew Point: 33F; Relative Humidity: 86%
Wind: ESE @ 7 kts
Sea-level pressure: 1024.5 mb; 30.25 in. Hg: falling, then more rapidly
Visibility: 30 miles
3-hr Precip: Trace
3-hr Snowfall: 0.0 inches
BHO SA 1455 E16 OVC 30 245/37/33/1107/025/ 8/6// 6000/ 58006
1 P.M.
Weather: Overcast stratus
Temperature: 41F Dew Point: 37F; Relative Humidity: 84%
Wind: ESE @ 4 kts, wind light
Sea-level pressure: 1022.7 mb; 30.20 in. Hg: falling, then more slowly
Visibility:30 miles
6-hr Max temp: 41F
6-hr Min temp: 33F
6-hr Precip: Trace
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 E18 OVC 30 227/41/37/1304/020/ WND LGT/ 8/6// 56018
6000/ 10041 20033
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SUMMARY FOR SATURDAY, MARCH 29, 2025
TEMPERATURE (DEGREES F)
MAX…….48 NORMAL…..48
MIN…….32 NORMAL…..31
MEAN……40 NORMAL…..40
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………0
TOTAL DEPARTURE FOR THE MONTH……………………+160 [+5.3 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY…………….25 DEPARTURE………0
TOTAL HEATING UNITS FOR THE MONTH……………703 DEPARTURE……-162
TOTAL HEATING UNITS FOR THE SEASON………….4884 DEPARTURE……-413
TOTAL HEATING UNITS LAST SEASON TO DATE……..4605 DEPARTURE……+279
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 NNE @ 05:42 A.M.
VECTOR #1 (1-Sec)……….38 NNE @ 05:42 A.M.
VECTOR #2 (1-Sec)……….38 NE @ 06:07 A.M.
DAVIS #1……………….36 NE @ 05:42 A.M.
DAVIS #2 ………………38 NE @ 05:42 A.M.
RMY #1 (Instantaneous)…..39 NNE @ 05:42 A.M.
RMY #2 (Instantaneous)…..42 NNE @ 05:42 A.M.
MERLIN…………………32 NE
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………26 NE @ 05:45 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..25 @ 05:45 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..26 @ 05:46 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………25 NE @ 05:46 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………26 ENE @ 05:46 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..24 NE @ 05:45 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..26 NE @ 05:46 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..10.8 ENE [260 total miles]
VECTOR #1………………10.4
VECTOR #2………………11.1
DAVIS #1……………….11.2 ENE
DAVIS #2……………….11.0 ENE
RMY #1…………………10.2 ENE
RMY #2…………………10.6 ENE
RICHARDS (C5C)…………..OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.10 DEPARTURE…..-0.07
TOTAL PRECIPITATION FOR THE MONTH…………..4.69 DEPARTURE…..-0.49
TOTAL PRECIPITATION FOR THE YEAR (2025)…….10.34 DEPARTURE…..-3.34
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…..-14.5
TOTAL SNOWFALL FOR THE SEASON (2024-2025)……34.1 DEPARTURE…..-32.3
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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 58/35/47/+8/0.00/0.0/000/00 38 WNW VEC1 37 WNW RMY 40
3/29 48/32/40/0/0.14/0.0/…/.. 38 NNE VEC1 38 NNE RMY 39
3/30 The low since midnight is 32F, the daily normal low is 31F.
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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 30
HIGH 83 IN 1977
LOW 10 IN 1887
PRECIP 2.92 INS. IN 2010
SNOWFALL 3.9 INS. IN 1957
PEAK GUST 60 MPH NW IN 1999
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
TODAY’S REPORT PREPARED BY: Amanda Joly
