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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SATURDAY, APRIL 11, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0510E
SUNSET: 1821E
MAINLY SUNNY AND BRISK WITH MILD TEMPERATURES….
Skies have been mostly clear today with an exception of a period
of low clouds that moved through early this morning, and just a
few floating by at times thereafter.
Temperatures are cooler than yesterday, but still above normal
for the date. Readings have reached the upper 50s early this
afternoon. Dew points have been on the decline through the day,
from around 40 early this morning to the low 30s by early this
afternoon.
Winds have been gusty out of the north-northwest to northwest.
The average speed for the day is around 14mph. The peak gust so
far for the day is 37mph which occurred just before 8:30am this
morning.
Visibility has been excellent all day with a view of 60-70 miles.
The maximum temperature so far today is 59F degrees, which is
5 degrees above the normal high of 54F. The minimum temperature
since midnight is 47F degrees, which is 11 degrees above the
normal low of 36F.
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Today’s Observations:
7 A.M.
Weather: Broken stratocumulus, broken altocumulus
Temperature: 50F; Dew Point: 40F; Relative Humidity: 68%
Wind: N @ 12G20 kts
Sea-level pressure: 1020.0 mb; 30.12 in. Hg: rising, then more slowly
Visibility: 70 miles
6-hr Max temp: 49F
6-hr Min temp: 47F
24-hr Precip: Trace
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 E35 BKN 100 BKN 70 200/50/40/3512G20/012/
8/550 51024 6000/ 70000 10049 20047
10 A.M.
Weather: Clear, few stratocumulus all quadrants
Temperature: 53F; Dew Point: 32F; Relative Humidity: 44%
Wind: NNW @ 16G26 kts, peak wind NNW 33mph at 9:39 A.M.
Sea-level pressure: 1021.5 mb; 30.17 in. Hg: rising, then steady
Visibility: 70 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 CLR 70 215/53/32/3316G26/017/ FEW SC ALQDS
PK WND 3329/39/ 8/500 51015
1 P.M.
Weather: Clear, few stratocumulus all quadrants
Temperature: 57F; Dew Point: 31F; Relative Humidity: 37%
Wind: NW @ 12G23 kts, peak wind NW 35mph at 12:40 P.M.
Sea-level pressure: 1021.2 mb; 30.16 in. Hg: falling, then steady
Visibility: 70 miles
6-hr Max temp: 59F
6-hr Min temp: 50F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 CLR 70 212/57/31/3112G23/016/ FEW SC ALQDS
PK WND 3130/40/ 8/500 56003 10059 20050
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SUMMARY FOR FRIDAY, APRIL 10, 2026
TEMPERATURE (DEGREES F)
MAX…….67 NORMAL…..54
MIN…….33 NORMAL…..36
MEAN……50 NORMAL…..45
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….+5
TOTAL DEPARTURE FOR THE MONTH………………………+15 [+1.3 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….15 DEPARTURE……..-5
TOTAL HEATING UNITS FOR THE MONTH (MAR)………206 DEPARTURE…….-16
TOTAL HEATING UNITS FOR THE SEASON………….5524 DEPARTURE…….-45
TOTAL HEATING UNITS LAST SEASON TO DATE……..5162 DEPARTURE……+362
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)………..37 S @ 03:37 P.M.
VECTOR #1 (1-Sec)……….36 SSW @ 06:11 P.M.
VECTOR #2 (1-Sec)……….36 SSW @ 07:34 P.M.
DAVIS #1……………….38 S @ 06:11 P.M.
DAVIS #2 ………………43 S @ 04:52 P.M.
RMY #1 (Instantaneous)…..37 SSW @ 06:11 P.M.
RMY #2 (Instantaneous)…..37 SSW @ 07:34 P.M.
MERLIN…………………35 S
RICHARDS (C5C) (Inst)……37 SSW @ 06:11 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………26 SSW @ 08:05 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..25 SSW @ 08:08 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..26 SSW @ 08:08 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………25 SSW @ 08:08 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………30 S @ 04:16 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..25 SSW @ 08:08 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..26 SSW @ 08:08 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………24 SSW @ 08:08 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..15.3 SSW [367 total miles]
VECTOR #1………………15.4
VECTOR #2………………15.8
DAVIS #1……………….15.0 SSW
DAVIS #2……………….16.1 SSW
RMY #1…………………15.2 SSW
RMY #2…………………15.9 SSW
RICHARDS (C5C)………….14.3
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…….TRACE DEPARTURE…..-0.18
TOTAL PRECIPITATION FOR THE MONTH (APR)……..0.92 DEPARTURE…..-0.79
TOTAL PRECIPITATION FOR THE YEAR (2026)…….12.59 DEPARTURE…..-3.14
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE…..-0.2
TOTAL SNOWFALL FOR THE MONTH (APR)…………TRACE DEPARTURE…..-1.7
TOTAL SNOWFALL FOR THE SEASON (2025-2026)……81.6 DEPARTURE….+13.0
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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/-10/0.00/0.0/756/96 30 NNW VEC1 31 NNW RMY 32
4/9 56/30/43/-1/0.00/0.0/…/.. 35 S VEC1 35 SSW RMY 35
4/10 67/33/50/+5/0.00/0.0/…/.. 37 S VEC1 36 SSW RMY 37
4/11 The low since midnight is 48F, the daily normal low is 36F.
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APRIL 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 APRIL 11
HIGH 85 IN 2017
LOW 19 IN 1909
PRECIP 1.72 IN. IN 2003
SNOWFALL 9.5 IN. IN 1958
PEAK GUST 65 MPH NW IN 1963
RECORDS FOR APRIL 12
HIGH 82 IN 1945
LOW 17 IN 1926
PRECIP 1.51 IN. IN 1993
SNOWFALL 9.0 IN. IN 1894
PEAK GUST 65e MPH W IN 1978
TODAY’S REPORT PREPARED BY: Matt Douglas
