Saturday, April 25, 2026

Agreement required — click “Accept & Continue” below to review and accept the Data Use & Privacy Policy

Access to this content requires acceptance of our Data Use & Privacy Policy.

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

SATURDAY, APRIL 25, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0448E
SUNSET: 1837E

SUNNY START GIVES WAY TO INCREASING CLOUDS; STILL ON THE COOL SIDE….

Skies were clear first thing this morning, giving us a very nice
sunrise. High clouds quickly began advancing into the region by
the mid morning hours with skies now mainly cloudy by early this
afternoon with some filtered sunshine.

Temperatures have remained below normal today, rising from the mid
30s early this morning to the low 50s by early this afternoon. The
normal high and low for today should be 61F and 42F respectively.
Dew point values started in the low 30s early this morning, but
just like the past couple of days, has dipped into the mid 20s by
early this afternoon. This, along with a breeze off the ocean, is
adding a decided chilly feeling to the air.

Winds were light during the first half of the morning, but has
since increased a bit. Wind have generally been out of an easterly
direction for the day so far. The average speed for the day so far
is around 6mph. The peak gust for the day so far is 18mph, which
occurred around 9:20am this morning.

Visibility has been quite decent today with the view improving
from around 50 miles early this morning to around 70 miles by
early this afternoon.

The maximum temperature so far today is 50F degrees, which is 11
degrees below the normal high of 61F. The minimum temperature since
midnight is 36F degrees, which is 6 degrees below the normal low
of 42F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Scattered cirrus, few stratocumulus NNE-SE-SSW,
few altocumulus distant W-NNW
Temperature: 42F; Dew Point: 33F; Relative Humidity: 70%
Wind: N @ 3 kts, wind light
Sea-level pressure: 1020.0 mb; 30.12 in. Hg: rising, then more rapidly
Visibility: 50 miles
6-hr Max temp: 42F
6-hr Min temp: 36F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 250 SCT 50 200/42/33/3503/012/ FEW SC NNE-SE-SSW
FEW AC DSNT W-NNW WND LGT/ 8/551 53015 10042 20036

10 A.M.
Weather: Broken cirrus, few stratocumulus distant SE-W
Temperature: 50F; Dew Point: 27F; Relative Humidity: 41%
Wind: ENE @ 7 kts, wind NNE variable E
Sea-level pressure: 1019.6 mb; 30.11 in. Hg: falling, then more slowly
Visibility: 70 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E250 BKN 70 196/50/27/0607/011/ FEW SC DSNT SE-W
WND 03V09/ 8/501 56004

1 P.M.
Weather: Overcast cirrostratus, few breaks in overcast distant
NNE-ENE, few stratocumulus distant S-W
Temperature: 50F; Dew Point: 26F; Relative Humidity: 39%
Wind: E @ 6 kts, wind light
Sea-level pressure: 1018.7 mb; 30.08 in. Hg: steady, then falling
Visibility: 70 miles
6-hr Max temp: 50F
6-hr Min temp: 42F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 E220 OVC 70 187/50/26/1006/008/ FEW BINOVC DSNT NNE-ENE
FEW SC DSNT S-W SUN DMLY VSBL WND LGT/ 8/506 58009 10050 20042

————————————————————–

SUMMARY FOR FRIDAY, APRIL 24, 2026

TEMPERATURE (DEGREES F)
MAX…….56 NORMAL…..60
MIN…….35 NORMAL…..41
MEAN……46 NORMAL…..51

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….-5
TOTAL DEPARTURE FOR THE MONTH………………………+44 [+1.6 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….19 DEPARTURE……..+5
TOTAL HEATING UNITS FOR THE MONTH (MAR)………420 DEPARTURE…….-41
TOTAL HEATING UNITS FOR THE SEASON………….5738 DEPARTURE…….-70
TOTAL HEATING UNITS LAST SEASON TO DATE……..5362 DEPARTURE……+376

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)………..23 NNW @ 07:16 A.M.
VECTOR #1 (1-Sec)……….24 NNW @ 07:44 A.M.
VECTOR #2 (1-Sec)……….24 NW @ 07:53 A.M.
DAVIS #1……………….22 N @ 07:44 A.M.
DAVIS #2 ………………22 N @ 08:10 A.M.
RMY #1 (Instantaneous)…..23 NNW @ 07:56 A.M.
RMY #2 (Instantaneous)…..25 NNW @ 08:10 A.M.
MERLIN…………………22 N
RICHARDS (C5C) (Inst)……23 NNW @ 07:43 A.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………16 N @ 08:04 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..16 NNW @ 08:11 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17 N @ 08:30 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………16 NW @ 07:18 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………17 N @ 08:11 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..16 NNW @ 08:11 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 NNW @ 08:11 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………16 NNW @ 08:11 A.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………7.1 ESE [170 total miles] VECTOR #1……………….7.9
VECTOR #2……………….8.3
DAVIS #1………………..8.1 ENE
DAVIS #2………………..8.2 ENE
RMY #1………………….7.9 ENE
RMY #2………………….8.2 NE
RICHARDS (C5C)…………..8.5

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.14
TOTAL PRECIPITATION FOR THE MONTH (APR)……..1.79 DEPARTURE…..-2.11
TOTAL PRECIPITATION FOR THE YEAR (2026)…….13.46 DEPARTURE…..-4.46

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……0.0
TOTAL SNOWFALL FOR THE MONTH (APR)…………TRACE DEPARTURE…..-2.7
TOTAL SNOWFALL FOR THE SEASON (2025-2026)……81.6 DEPARTURE….+12.0

————————————————————–

PRELIMINARY CLIMATE SUMMARY FOR APRIL 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

4/1 73/38/56/+15/0.16/0.0/061/08 35 NE VEC1 34 ENE RMY 35
4/2 38/34/36/-5/0.45/0.0/000/00 31 E VEC1 31 E RMY 33
4/3 67/35/51/+9/0.04/0.0/270/35 31 SW VEC1 31 SW RMY 35
4/4 58/35/47/+5/0.01/0.0/093/12 39 ENE VEC1 38 ENE RMY 42
4/5 55/36/46/+3/0.16/0.0/008/01 35 NW VEC1 36 NW RMY 38
4/6 50/32/41/-2/0.00/0.0/708/91 46 WNW VEC1 46 WNW RMY 47
4/7 50/29/40/-4/0.10/T/336/43 39 WNW VEC1 39 WNW RMY 41
4/8 43/25/34/-10/0.00/0.0/753/96 30 NNW VEC1 31 NNW RMY 32
4/9 56/30/43/-1/0.00/0.0/755/96 35 S VEC1 35 SSW RMY 35
4/10 67/33/50/+5/0.00/0.0/672/85 37 S VEC1 36 SSW RMY 37
4/11 60/41/51/+6/0.00/0.0/690/87 37 NW VEC1 37 NW RMY 37
4/12 54/35/45/-1/0.02/0.0/549/69 28 S VEC1 28 S RMY 28
4/13 69/41/55/+9/T/0.0/168/21 40 SSW VEC1 41 SSW RMY 42
4/14 83/58/71/+24/0.15/0.0/617/77 46 SSW VEC1 46 SSW RMY 47
4/15 77/44/61/+14/T/0.0/626/78 25 NE VEC1 25 NE RMY 24
4/16 69/45/57/+10/0.37/0.0/347/43 45 NW VEC1 44 NW RMY 50 TSTM
4/17 62/47/55/+7/0.14/0.0/145/18 31 NE VEC1 32 NNW RMY 31
4/18 48/41/45/-3/0.04/0.0/008/01 28 ENE VEC1 26 E RMY 27
4/19 49/34/42/-7/0.14/T/000/00 40 NW VEC1 39 NW RMY 42 TSTM
4/20 50/31/41/-8/T/T/596/73 31 W VEC1 30 W RMY 32
4/21 50/31/41/-9/0.00/0.0/812/99 28 S VEC1 29 S RMY 28
4/22 44/34/39/-11/T/0.0/000/00 31 SSW VEC1 31 SSW RMY 32
4/23 65/40/53/+3/0.00/0.0/…/.. 43 NW VEC1 43 NW RMY 49
4/24 56/35/46/-5/0.00/0.0/…/.. 23 NNW VEC1 24 NNW RMY 23