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Thursday, March 19, 2026

March 19, 2026

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA THURSDAY, MARCH 19, 2026 ALL TIMES ARE…

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

THURSDAY, MARCH 19, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0549E
SUNSET:  1755E

MORE CLOUDS THAN SUN TODAY, STILL ON THE CHILLY SIDE….

Clouds have been dominating the sky today with some periods of
sun this morning. As we cruise through the early afternoon hours,
clouds have wholeheartedly taken over with no signs of the sun.

It’s still on the chilly side today with temperatures running
below normal once again. Thankfully, much like yesterday, the
wind is quite light.

Temperatures started the day in the low to mid 20s, and have only
“warmed” to the mid 30s by early this afternoon. Adding to the
chill of the air are the continued low dew points values, which
have been in the upper teens to near 20F all day.

Winds have been generally on the light side today. A southerly
flow has only been averaging at around 6mph for the day so far.
The peak gust for the day so far is 15mph, which occurred just
1am this morning.

The visibility today has been lower than it was yesterday. The
view started the day at around 40 miles, and have only improved
to around 50-60 miles by early this afternoon.

The maximum temperature so far today is 37F degrees, which is
8 degrees below the normal high of 45F. The minimum temperature
since midnight is 23F degrees, which is 5 degrees below the
normal low of 28F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Broken altocumulus, broken cirrus, few stratocumulus
distant NNE-SE
Temperature: 28F; Dew Point: 18F; Relative Humidity: 65%
Wind: S @ 4 kts, wind light
Sea-level pressure: 1028.5 mb; 30.37 in. Hg: falling, then steady
Visibility: 40 miles, hazy
6-hr Max temp: 28F
6-hr Min temp: 23F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 E100 BKN 250 BKN 40 285/28/18/1804/037/
FEW SC DSNT NNE-SE HAZY WND LGT/ 8/551 56004 10028 20023

10 A.M.
Weather: Broken altocumulus, few stratocumulus distant NNE-S-WSW
Temperature: 34F; Dew Point: 19F; Relative Humidity: 54%
Wind: SSW @ 5 kts, wind light
Sea-level pressure: 1027.9 mb; 30.35 in. Hg: falling, then more slowly
Visibility: 50 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E95 BKN 50 279/34/19/2105/035/ FEW SC DSNT NNE-S-WSW
WND LGT/ 8/550 56006

1 P.M.
Weather: Overcast altostratus, few stratocumulus all quadrants
Temperature: 37F; Dew Point: 21F; Relative Humidity: 52%
Wind: S @ 6 kts, wind light
Sea-level pressure: 1025.2mb; 30.27 in. Hg: falling, then more rapidly
Visibility: 50 miles
6-hr Max temp: 37F
6-hr Min temp: 28F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 E60 OVC 50 252/37/21/1806/027/ FEW SC ALQDS WND LGT/
8/52/ 58027 10037 20028

————————————————————–

SUMMARY FOR WEDNESDAY, MARCH 18, 2026

TEMPERATURE (DEGREES F)
MAX…….35   NORMAL…..44
MIN…….20   NORMAL…..27
MEAN……28   NORMAL…..36

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….-8
TOTAL DEPARTURE FOR THE MONTH……………………..+104 [+5.6 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….37  DEPARTURE……..+8
TOTAL HEATING UNITS FOR THE MONTH (MAR)………462  DEPARTURE……-105
TOTAL HEATING UNITS FOR THE SEASON………….5004  DEPARTURE……..+5
TOTAL HEATING UNITS LAST SEASON TO DATE……..4631  DEPARTURE……+373

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 *=Last of multiple occurrences

F420C (Official)………..36 WNW  @   12:38 A.M.
VECTOR #1 (1-Sec)……….36 WNW  @   12:38 A.M.
VECTOR #2 (1-Sec)……….36 W    @   12:32 A.M.
DAVIS #1……………….35 WNW  @   12:38 A.M.
DAVIS #2 ………………35 WNW  @   12:06 A.M.
RMY #1 (Instantaneous)…..37 WNW  @   12:38 A.M.
RMY #2 (Instantaneous)…..37 W    @   12:06 A.M.
MERLIN………………….M
RICHARDS (C5C) (Inst)……35 WNW  @   12:38 A.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………25 WNW  @   12:01 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..25 WNW  @   12:01 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..26 W    @   12:06 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………27 WNW  @   12:01 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………26 WNW  @   12:06 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..25 WNW  @   12:01 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..26 W    @   12:06 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………25 WNW  @   12:01 A.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………8.8 WNW [212 total miles] VECTOR #1……………….9.4
VECTOR #2………………10.2
DAVIS #1………………..9.4 W
DAVIS #2………………..9.6 W
RMY #1………………….9.3 WSW
RMY #2…………………10.0 WSW
RICHARDS (C5C)…………..9.7

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.19
TOTAL PRECIPITATION FOR THE MONTH (MAR)……..3.49 DEPARTURE…..+0.33
TOTAL PRECIPITATION FOR THE YEAR (2026)…….10.08 DEPARTURE…..-1.58

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE…..-0.5
TOTAL SNOWFALL FOR THE MONTH (MAR)…………..2.5 DEPARTURE…..-7.8
TOTAL SNOWFALL FOR THE SEASON (2025-2026)……81.2 DEPARTURE….+19.0

————————————————————–

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  37/19/28/-3/0.10/1.9/209/31         30 NNW VEC1 31 NNW RMY 31
3/2  28/8/18/-14/0.00/0.0/665/98         25 N   VEC1 25 NNW RMY 25
3/3  32/17/25/-7/0.43/0.5/211/31         21 S   VEC1 21 S   RMY 22
3/4  54/30/42/+10/0.22/0.0/670/98        20 W   VEC1 19 W   RMY 20
3/5  46/33/40/+8/0.36/0.0/000/00         35 ENE VEC1 35 ENE RMY 38
3/6  33/26/30/-3/0.06/T/000/00           32 ENE VEC1 32 ENE RMY 33
3/7  46/32/39/+6/0.01/0.0/000/00         39 SSW VEC1 39 SSW RMY 42
3/8  54/46/50/+17/0.01/0.0/007/01        33 SSW VEC1 34 SSW RMY 34
3/9  67/45/56/+23/0.00/0.0/684/98        30 SSW VEC1 30 SW  RMY 31
3/10 74/48/61/+27/0.00/0.0/673/96        28 SW  VEC1 27 WSW RMY 28
3/11 59/39/49/+15/0.12/0.0/500/71        38 SSW VEC1 38 SSW RMY 42
3/12 57/30/44/+10/0.18/T/000/00          35 NW  VEC1 34 WNW RMY 37
3/13 42/25/34/0/T/T/383/54               32 WNW VEC1 32 NW  RMY 34
3/14 47/30/39/+4/0.01/0.1/606/85         54 WNW VEC1 54 WNW RMY 56
3/15 41/28/35/0/0.00/0.0/107/15          30 SE  VEC1 30 SE  RMY 29
3/16 60/36/48/+13/1.43/0.0/000/00        71 SSW VEC1 72 S   RMY 74
3/17 59/24/42/+6/0.02/T/555/77           81 S   VEC1 80 S   RMY 83
3/18 35/20/28/-8/0.00/0.0/521/72         36 WNW VEC1 36 WNW RMY 37

3/19 The low since midnight is 23F, the daily normal low is 28F.

————————————————————–

MARCH DAILY RECORDS TO DATE

3/9  RECORD HIGH MINIMUM TEMPERATURE OF 45F,
BEATING THE PREVIOUS RECORD OF 42F SET IN 1922

3/10 RECORD HIGH MAXIMUM TEMPERATURE OF 74F,
BEATING THE PREVIOUS RECORD OF 69F SET IN 1977

3/17 RECORD PEAK WIND GUST OF 81 MPH,
BEATING THE OLD RECORD OF 70 MPH SET IN 1973

————————————————————–

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)

RECORDS FOR MARCH 19
HIGH 77 IN 2012
LOW -2 IN 1967
PRECIP 1.69 INS. IN 1956
SNOWFALL 17.6 INS. IN 1956
PEAK GUST 75e MPH WNW IN 1941

RECORDS FOR MARCH 20
HIGH 79 IN 1945
LOW 4 IN 1885
PRECIP 1.39 INS. IN 1957
SNOWFALL 11.4 INS. IN 1957
PEAK GUST 63 MPH SE IN 1975

TODAY’S REPORT PREPARED BY: Matt Douglas

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Blue Hill Observatory & Science Center · Legal

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Please read the full Policy before accessing Observatory data · Effective January 1, 2025

Notice: By accessing, downloading, or using any Blue Hill Observatory data or services, you unconditionally accept and agree to be bound by this Policy in its entirety. If you do not agree, you may not access or use Observatory data.
Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
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