Friday, March 14, 2025
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
FRIDAY, MARCH 14, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0557E
SUNSET: 1750E
MORNING CLOUDS BURN OFF LEADING TO PLENTY OF SUNSHINE AND MILD
TEMPERATURES….
We had a lot of cloud cover around early this morning with various
layers of stratocumulus and even some stratocumulus lenticularis.
These clouds however burned off nicely by the mid morning hours with
plenty of sunshine being the theme through early this afternoon.
Temperatures have warmed into the lower 50s early this afternoon
which is above seasonal levels for this date. All in all its a
rather nice day out there considering it’s mid March. Dew point
readings have risen from the low 30s to the upper 30s during the
course of the day with a very light flow off the ocean.
Winds have been on the light side today with a light onshore flow
only averaging around 6mph for the day so far. The highest gust so
far today has only been 14mph, the lowest peak gust of the month
so far!
Visibility has been limited all day to around 20-35 miles, first
due to thin fog early this morning, and then just general haziness
thereafter. Both of which are due to the high moisture content of
the air (relative humidity levels above 60% for the day so far).
The maximum temperature for today is 51F degrees, which is 8 degrees
above the normal high of 43F. The minimum temperature since midnight
is 33F degrees, which is 7 degrees above the normal low of 26F.
————————————————————–
Today’s Observations:
7 A.M.
Weather: Overcast stratocumulus, few breaks in overcast distant E-SE-SW,
few lower stratocumulus all quadrants, few lower stratocumulus lenticularis
distant NNE-ENE and distant SSE-SW
Temperature: 36F; Dew Point: 33F; Relative Humidity: 92%
Wind: NNE @ 4 kts, wind light
Sea-level pressure: 1023.2 mb; 30.22 in. Hg: steady, then rising
Visibility: 20 miles, thin fog
6-hr Max temp: 36F
6-hr Min temp: 33F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 E30 OVC 20 232/36/33/0304/022/ FEW BINOVC DSNT E-SE-SW
FEW LWR SC ALQDS FEW LWR SCSL DSNT NNE-ENE AND DSNT SSE-SW THN F ALQDS
WND LGT/ 8/57/ 53014 10036 20033
10 A.M.
Weather: Clear, few stratocumulus distant WNW-N-SE
Temperature: 43F; Dew Point: 36F; Relative Humidity: 76%
Wind: NE @ 5 kts, wind light
Sea-level pressure: 1023.3 mb; 30.22 in. Hg: rising, then falling
Visibility: 20 miles, hazy
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 CLR 20 233/43/36/0505/022/ FEW SC DSNT WNW-N-SE HAZY
WND LGT/ 8/500 50001
1 P.M.
Weather: Clear, few cirrus all quadrants
Temperature: 51F; Dew Point: 37F; Relative Humidity: 59%
Wind: ESE @ 3 kts, wind light and variable
Sea-level pressure: 1022.0 mb; 30.18 in. Hg: falling, then more rapidly
Visibility: 35 miles, hazy
6-hr Max temp: 51F
6-hr Min temp: 36F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 CLR 35 220/51/37/1103/018/ FEW CI ALQDS HAZY WND L/V/
8/001 58013 10051 20036
————————————————————–
SUMMARY FOR THURSDAY, MARCH 13, 2025
TEMPERATURE (DEGREES F)
MAX…….46 NORMAL…..43
MIN…….32 NORMAL…..26
MEAN……39 NORMAL…..34
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+5
TOTAL DEPARTURE FOR THE MONTH…………………….+56 [+4.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY…………….26 DEPARTURE……..-5
TOTAL HEATING UNITS FOR THE MONTH……………362 DEPARTURE…….-57
TOTAL HEATING UNITS FOR THE SEASON………….4543 DEPARTURE……-308
TOTAL HEATING UNITS LAST SEASON TO DATE……..4202 DEPARTURE……+341
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)………..25 ESE @ 01:56 P.M.
VECTOR #1 (1-Sec)……….26 ESE @ 01:55 P.M.
VECTOR #2 (1-Sec)……….24 ENE @ 02:30 P.M.
DAVIS #1……………….24 ESE @ 01:55 P.M.
DAVIS #2 ………………26 ESE @ 03:38 P.M.
RMY #1 (Instantaneous)…..25 ESE @ 01:55 P.M.
RMY #2 (Instantaneous)…..27 ESE @ 03:38 P.M.
MERLIN…………………23 SE
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………17 ENE @ 02:27 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..18 @ 04:03 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17 @ 03:49 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………18 ESE @ 04:03 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………17 ESE @ 03:50 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..17 ESE @ 04:03 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 ESE @ 03:49 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………9.2 ESE [220 total miles]
VECTOR #1……………….8.9
VECTOR #2……………….9.3
DAVIS #1………………..9.7 ESE
DAVIS #2………………..9.4 ESE
RMY #1………………….9.1 E
RMY #2………………….9.2 E
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…………..1.18 DEPARTURE…..-1.08
TOTAL PRECIPITATION FOR THE YEAR (2025)……..6.83 DEPARTURE…..-3.93
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.5
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-7.7
TOTAL SNOWFALL FOR THE SEASON (2024-2025)……34.1 DEPARTURE…..-25.5
————————————————————–
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/…/.. 69 S VEC1 69 S RMY 68
3/7 41/25/33/0/T/T/…/.. 60 WNW VEC1 61 WNW RMY 64
3/8 40/27/34/+1/0.00/0.0/…/.. 55 W VEC1 55 W RMY 58
3/9 45/25/35/+2/0.00/0.0/…/.. 40 W VEC1 39 W RMY 42
3/10 60/33/47/+13/0.00/0.0/…/.. 38 WNW VEC1 38 WNW RMY 39
3/11 62/37/50/+16/0.00/0.0/…/.. 39 SSW VEC1 40 SSW RMY 40
3/12 48/32/40/+6/T/T/…/.. 29 N VEC1 29 N RMY 29
3/13 46/32/39/+5/0.00/0.0/…/.. 25 ESE VEC1 26 ESE RMY 25
3/14 The low since midnight is 33F, the daily normal low is 26F.
————————————————————–
MARCH DAILY RECORDS TO DATE
NONE.
————————————————————–
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR MARCH 14
HIGH 74 IN 1946
LOW 7 IN 1896
PRECIP 4.95 INS. IN 2010
SNOWFALL 7.3 INS. IN 2017
PEAK GUST 67 MPH ENE IN 2010
RECORDS FOR MARCH 15
HIGH 80 IN 1990
LOW 6 IN 1993
PRE 2.86 INS. IN 2010
SNOW 12.0 INS. 1967
WIND 73e MPH ESE IN 1940
TODAY’S REPORT PREPARED BY: Matt Douglas
