Wednesday, March 5, 2025
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
WEDNESDAY, MARCH 5, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0613E
SUNSET: 1739E
CLOUDY AND MILD WITH GUSTY WINDS….
After some very brief sunshine around sunrise this morning, clouds
quickly advanced leaving us with overcast skies for the balance of
the day. An area of light rain did move through between 8-9am this
morning, but it wasn’t enough to register a measurable amount
despite being enough to wet the ground.
Temperatures are quite mild for today. As a matter of fact, the low
for the day is a balmy 41F degrees. Readings have reached the mid
50s early this afternoon despite the lack of sunshine. The dew
point has been in the low to mid 40s as well, indicating a stark
increase in moisture content in the air, especially compared to the
past few days.
Winds have been busy today out of the south-southwest. The average
speed for the day so far is around 20mph. Gusts have been frequently
exceeding 30mph since the mid morning hours, with a peak gust so far
of 40mph which has occurred multiple times.
Visibility has been limited today thanks to thin fog and general
haziness. The view has been limited to generally 20-35 miles, except
briefly getting below 10 miles during the period of light rain this
morning.
The maximum temperature for today is 54F degrees, which is 13 degrees
above the normal high of 41F. The minimum temperature since midnight
is 41 degrees, which is 17 degrees above the normal low of 24F.
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Today’s Observations:
7 A.M.
Weather: Scattered stratocumulus, broken altocumulus/altostratus,
broken cirrostratus, overcast cirrus, few breaks in overcast distant
ESE-SE, few stratus fractus all quadrants
Temperature: 44F; Dew Point: 42F; Relative Humidity: 93%
Wind: SSW @ 17G26 kts, peak gust SSW 30mph at 6:54 A.M.
Sea-level pressure: 1015.2 mb; 29.98 in. Hg: falling, then rising
Visibility: 25 miles, thin fog
6-hr Max temp: 44F
6-hr Min temp: 42F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 45 SCT 65 BKN 200 BKN 250 OVC 25 152/44/42/2017G26/998/
FEW BINOVC DSNT ESE-SE FEW STFRA ALQDS THN F ALQDS PK WND 2026/54/
8/576 55000 10044 20041
10 A.M.
Weather: Overcast altocumulus/altostratus, few stratocumulus all quadrants
Temperature: 49F; Dew Point: 45F; Relative Humidity: 86%
Wind: SSW @ 12G29 kts, peak wind SSW 33mph at 9:54 A.M.
Sea-level pressure: 1014.1 mb; 29.95 in. Hg: rising, then falling
Visibility: 20 miles, thin fog
3-hr Precip: Trace
3-hr Snowfall: 0.0 inches
BHO SA 1455 E50 OVC 20 141/49/45/2120G29/995/ FEW SC ALQDS THN F ALQDS
PK WND 2029/54/ 8/57/ 58011 6000/
1 P.M.
Weather: Broken stratocumulus, broken altostratus, broken altocumulus/
castellanus, overcast cirrostratus, few lower stratocumulus all quadrants
Temperature: 53F; Dew Point: 44F; Relative Humidity: 70%
Wind: SSW @ 21G35 kts, peak wind SSW 40mph at 12:52 P.M.
Sea-level pressure: 1011.0 mb; 29.85 in. Hg: falling, then more rapidly
Visibility: 35 miles, hazy
6-hr Max temp: 54F
6-hr Min temp: 44F
6-hr Precip: Trace
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 E50 BKN 65 BKN 90 BKN 170 OVC 35 110/53/44/2021G35/985/
FEW LWR SC ALQDS HAZY PK WND 2035/52/ 8/577 58031 6000 10054 20044
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SUMMARY FOR TUESDAY, MARCH 4, 2025
TEMPERATURE (DEGREES F)
MAX…….48 NORMAL…..41
MIN…….23 NORMAL…..23
MEAN……36 NORMAL…..32
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+4
TOTAL DEPARTURE FOR THE MONTH…………………….-14 [-3.7 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY…………….29 DEPARTURE……..-4
TOTAL HEATING UNITS FOR THE MONTH……………147 DEPARTURE…….+14
TOTAL HEATING UNITS FOR THE SEASON………….4328 DEPARTURE……-237
TOTAL HEATING UNITS LAST SEASON TO DATE……..3985 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)………..41 SW @ 01:23 P.M.
VECTOR #1 (1-Sec)……….42 SW @ 01:23 P.M.
VECTOR #2 (1-Sec)……….41 SSW @ 01:23 P.M.
DAVIS #1……………….39 SSW @ 01:24 P.M.
DAVIS #2 ………………39 SSW @ 01:24 P.M.
RMY #1 (Instantaneous)…..43 SW @ 01:23 P.M.
RMY #2 (Instantaneous)…..42 SSW @ 01:23 P.M.
MERLIN…………………40 SW
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………30 SW @ 01:34 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..27 @ 11:42 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..28 @ 02:55 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………27 SW @ 11:42 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………28 SW @ 11:42 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..27 SW @ 02:55 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..28 SSW @ 02:55 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..16.5 SW [395 total miles]
VECTOR #1………………16.3
VECTOR #2………………16.8
DAVIS #1……………….15.8 SSW
DAVIS #2……………….16.7 SW
RMY #1…………………16.1 SW
RMY #2…………………16.9 SSW
RICHARDS (C5C)…………..OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.17
TOTAL PRECIPITATION FOR THE MONTH………….TRACE DEPARTURE…..-0.69
TOTAL PRECIPITATION FOR THE YEAR (2025)……..5.65 DEPARTURE…..-3.54
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.00 DEPARTURE……-0.7
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-2.6
TOTAL SNOWFALL FOR THE SEASON (2024-2025)……34.1 DEPARTURE…..-20.4
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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 28/14/21/-11/0.00/0.0/…/.. 41 NW VEC1 42 NW RMY 43
3/3 31/8/20/-12/0.00/0.0/…/.. 28 NW VEC1 28 NW RMY 31
3/4 48/23/36/+4/0.00/0.0/…/.. 41 SW VEC1 42 SW RMY 43
3/5 The low since midnight is 41F, the daily normal low is 24F.
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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 5
HIGH 64 IN 1979
LOW -2 IN 1948
PRECIP 1.76 INS. IN 1920, 2001
SNOWFALL 12.0 INS. IN 1917
PEAK GUST 76e MPH WNW IN 1971
RECORDS FOR MARCH 6
HIGH 66 IN 1894
LOW 3 IN 1948, 2007
PRECIP 1.85 INS. IN 2001
SNOWFALL 15.5 INS. IN 2001
PEAK GUST 82 MPH S IN 1959
TODAY’S REPORT PREPARED BY: Matt Douglas
