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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

SUNDAY, MARCH 2, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0617E
SUNSET: 1736E

ANOTHER WINDY DAY WITH PLENTY OF SUNSHINE AND BELOW
NORMAL TEMPERATURES….

Skies have remained mostly clear today with the exception of
some distant stratocumulus clouds off the coast to our northeast
and east directions.

Yesterday’s disturbance that moved through during the evening
hours only amounted to a trace of liquid and snow precipitation
but it brought plenty of cold and dry air behind it. Before the
event we were in the upper 40’s and dropped to the mid 30’s. The
temperature only decreased more, dipping down to 14F during the
early morning hours today. With the addition of the blustery
WNW-NW winds we were seeing wind chills this morning in the range
of -4F to 3F. Fortunately, we have recovered in the temperature
department, but still well below average for this time of year.

Winds have been gusting throughout the day, mostly out of the WNW
and NW directions. We have an average speed so far of about 16mph.
The peak gust occurred just after 1am with a speed of about 42mph.

Thanks to the aforementioned dry air, we have had exceptional visibility!
We were in the 60 mile range for most of the morning and improved to
about 70 miles by the early afternoon.

The maximum temperature for today is 27F degrees, which is 13 degrees
below the normal high of 40F. The minimum temperature since midnight is
14F degrees, which is 9 degrees below the normal low of 23F.

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PRELIMINARY STATS FOR FEBRUARY 2025

TEMPERATURE, Deg. F
Avg. Max. 35.5 [-1.5] Avg. Min. 20.1 [+0.6] Mean 27.8 [-0.4] 24-hour corrected mean: 28.0
Max. for month: 55F on the 25th
Min. for month: 5F on the 2nd

HEATING DEGREE DAYS
Total heating units: 1038 [+009] Total for the season: 4181 [-251] Total for last season: 3852

COOLING DEGREE DAYS
Total cooling units: 0 [ 000] Total for the season: 0 [ 000] Total for last season: 0

PRECIPITATION, Inches
Total: 3.30 [-0.70] Greatest in 24 hrs: 1.86 on the 15th-16th

SNOWFALL, Inches
Total: 13.1 [ -5.1] Greatest in 24 hrs: 4.9 on the 15th-16th

WIND, mph
Avg. uncorrected wind speed: 13.2 mph
Avg. corrected wind speed: 13.6 mph
Prevailing wind direction: West-Northwest [25%] Peak gust and direction: 70 WNW on the 17th

SUNSHINE:
Campbell-Stokes card minutes: 8778 of a possible 17148, or 51%
Astronomical total minutes: 9115 of a possible 17808 or 51%

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Today’s Observations:

7 A.M.
Weather: Few stratocumulus distant NE-E-SSE
Temperature: 14F; Dew Point: 2F; Relative Humidity: 58%
Wind: NW @ 10G18 kts
Sea-level pressure: 1012.4 mb; 29.90 in. Hg: rising, then
more slowly
Visibility: 60 miles
6-hr Max temp: 20F
6-hr Min temp: 14F
24-hr Precip: Trace
24-hr Snowfall: Trace
Snow Depth: 0 inches
BHO SA 1155 CLR 60 124/14/2/3010G18/990/ FEW SC DSNT
NE-E-SSE TOTAL NEW SNW PST 24 HRS TRACE/ 8/500 51030
70000 10020 20014

10 A.M.
Weather: Clear, few stratocumulus distant NE-E
Temperature: 21F; Dew Point: 1F; Relative Humidity: 42%
Wind: WNW @ 13G20 kts, peak wind WNW 37mph @ 9:24 A.M.
Sea-level pressure: 1014.3 mb; 29.95 in. Hg: rising unsteadily
Visibility: 50 miles
3-hr Precip: 0.0 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 CLR 50 143/21/1/2913G20/995/ FEW SC DSNT NE-E
PK WND 3232/24/ 8/500 52019

1 P.M.
Weather: Clear, few stratocumulus distant NE-E
Temperature: 25F; Dew Point: -4F; Relative Humidity: 28%
Wind: WNW @ 12G20 kts
Sea-level pressure: 996.5 mb; 29.43 in. Hg: rising, then
falling
Visibility: 70 miles
6-hr Max temp: 27F
6-hr Min temp: 14F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 CLR 70 142/25/-4/2912G20/995/ FEW SC DSNT NE-E/ 8/500
58001 10027 20014

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SUMMARY FOR SATURDAY, MARCH 1, 2025

TEMPERATURE (DEGREES F)
MAX…….50 NORMAL…..40
MIN…….21 NORMAL…..23
MEAN……36 NORMAL…..31

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+5
TOTAL DEPARTURE FOR THE MONTH……………………..+5 [+4.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY……………..5 DEPARTURE……..+5
TOTAL HEATING UNITS FOR THE MONTH……………..5 DEPARTURE……..+5
TOTAL HEATING UNITS FOR THE SEASON………….4181 DEPARTURE……-251
TOTAL HEATING UNITS LAST SEASON TO DATE……..3852 DEPARTURE……+329

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)………..46 NW @ 08:12 P.M.
VECTOR #1 (1-Sec)……….46 NW @ 08:12 P.M.
VECTOR #2 (1-Sec)……….50 WNW @ 07:22 P.M.
DAVIS #1……………….44 W @ 08:50 P.M.
DAVIS #2 ………………45 WNW @ 07:23 P.M.
RMY #1 (Instantaneous)…..49 WNW @ 08:00 P.M.
RMY #2 (Instantaneous)…..51 WNW @ 07:22 P.M.
MERLIN…………………44 NW
RICHARDS (C5C) (Inst)…..OTS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………32 NW @ 08:08 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..31 @ 07:24 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..36 @ 07:24 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………33 WNW @ 07:24 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………36 WNW @ 07:24 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..31 NW @ 08:13 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..35 WNW @ 07:24 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..17.9 S [429 total miles] VECTOR #1………………17.5
VECTOR #2………………18.6
DAVIS #1……………….17.5 SSW
DAVIS #2……………….19.2 SSW
RMY #1…………………16.9 SSW
RMY #2…………………18.5 SSW
RICHARDS (C5C)…………..OTS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…….TRACE DEPARTURE…..-0.17
TOTAL PRECIPITATION FOR THE MONTH………….TRACE DEPARTURE…..-0.17
TOTAL PRECIPITATION FOR THE YEAR (2025)……..5.65 DEPARTURE…..-3.02

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………TRACE DEPARTURE……-0.7
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-0.7
TOTAL SNOWFALL FOR THE SEASON (2024-2025)……34.1 DEPARTURE…..-18.5

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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

3/1 50/21/36/+5/T/T/…/.. 46 NW VEC1 46 NW RMY 49

3/2 The low since midnight is 14F, the daily normal low is 23F.

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MARCH DAILY RECORDS TO DATE

NONE.

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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 32/10/21/-5/0.07/0.4/000/00 35 NNW VEC1 34 NNW RMY 35
2/2 24/5/15/-11/0.10/1.0/260/43 22 SE VEC1 25 SE RMY 24
2/3 42/24/33/+7/0.05/0.5/321/53 35 SSW VEC1 35 SSW RMY 35
2/4 41/20/31/+5/0.00/0.0/542/89 51 NW VEC1 51 NW RMY 55
2/5 27/14/21/-6/0.00/0.0/562/92 32 NW VEC1 32 NW RMY 32
2/6 32/16/24/-3/0.22/1.0/000/00 26 SE VEC1 28 SE RMY 25
2/7 38/22/30/+3/0.00/0.0/542/88 48 WNW VEC1 49 WNW RMY 50
2/8 35/19/27/0/0.09/1.1/433/70 23 W VEC1 22 W RMY 23
2/9 29/23/26/-1/0.30/3.0/006/01 24 N VEC1 24 N RMY 24
2/10 33/19/26/-1/0.00/0.0/343/55 26 WNW VEC1 27 NW RMY 28
2/11 30/14/22/-5/0.00/0.0/232/37 23 WSW VEC1 22 WSW RMY 23
2/12 32/24/28/0/0.04/0.4/006/01 29 ENE VEC1 29 ENE RMY 28
2/13 38/28/33/+5/0.42/0.7/000/00 52 WNW VEC1 52 WNW RMY 55
2/14 32/20/26/-2/0.00/0.0/634/100 50 NW VEC1 50 NW RMY 54
2/15 28/15/22/-6/0.29/3.3/108/17 20 ESE VEC1 20 ESE RMY 18
2/16 35/22/29/+1/1.66/1.6/000/00 45 W VEC1 45 W RMY 48 TSTM
2/17 28/16/22/-7/T/T/597/93 70 WNW VEC1 68 WNW RMY 72
2/18 25/13/19/-10/0.00/0.0/645/100 51 WNW VEC1 52 WNW RMY 54
2/19 30/12/21/-8/0.00/0.0/635/98 33 WNW VEC1 33 WNW RMY 34
2/20 29/11/20/-9/T/T/046/07 26 NW VEC1 27 NW RMY 27
2/21 33/17/25/-4/0.00/0.0/470/72 38 NW VEC1 39 NW RMY 40
2/22 35/13/24/-6/0.00/0.0/505/77 30 NW VEC1 30 NW RMY 33
2/23 42/25/34/+4/0.00/0.0/395/60 30 WNW VEC1 31 WNW RMY 28
2/24 45/25/35/+5/0.00/0.0/449/68 33 SSW VEC1 34 SSW RMY 35
2/25 55/35/45/+15/T/0.0/153/23 31 SSW VEC1 31 SSW RMY 32
2/26 51/35/43/+12/0.00/0.0/620/93 31 NW VEC1 31 WNW RMY 33
2/27 49/33/41/+10/0.06/0.1/020/03 36 WNW VEC1 36 WNW RMY 35
2/28 45/33/39/+8/0.00/0.0/591/88 41 WNW VEC1 42 WNW RMY 43