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Monday, April 6, 2026

April 6, 2026

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA MONDAY, APRIL 6, 2026 ALL TIMES ARE…

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

MONDAY, APRIL 6, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0518E
SUNSET:  1816E

COOLER AND BRISK WITH A MIX OF SUN AND CLOUDS….

The day started with clear skies, but stratocumulus clouds
quickly filled the sky during the morning hours giving us
a decorative mix of sun and clouds.

Temperatures are below normal today with readings only reaching
the upper 40s early this afternoon. Dew point values have been
holding in the mid 20s all day, so the air mass is decidedly
drier and colder than it was yesterday.

Winds have been busy all day out of the west-northwest. The
average speed for the day so far is around 17mph. Gusts have
been frequently exceeding 30mph throughout the day. The peak
gust so far is 46mph, which occurred just before 5am this
morning.

Visibility has been excellent all day with a view of around
70 miles!

The maximum temperature so far today is 49F degrees, which is
3 degrees below the normal high of 52F. The minimum temperature
since midnight is 35F degrees, which is 1 degree above the normal
low of 34F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Clear, few stratocumulus distant all quadrants, few
cirrus distant ESE-S
Temperature: 38F; Dew Point: 25F; Relative Humidity: 58%
Wind: WNW @ 17G28 kts, peak wind WNW 33 mph at 6:42 A.M.
Sea-level pressure: 1012.8 mb; 29.91 in. Hg: falling, then more slowly
Visibility: 70 miles
6-hr Max temp: 40F
6-hr Min temp: 35F
24-hr Precip: 0.15 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 CLR 70 128/38/25/3017G28/991/ FEW SC DSNT ALQDS
FEW CI DSNT ESE-S PK WND 2929/42/ 8/501 51023 70015 10040 20035

10 A.M.
Weather: Broken stratocumulus
Temperature: 44F; Dew Point: 24F; Relative Humidity: 45%
Wind: W @ 19G27 kts, peak wind W 37 mph at 9:32 A.M.
Sea-level pressure: 1013.7 mb; 29.93 in. Hg: falling, the more rapidly
Visibility: 70 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E45 BKN 70 137/44/24/2819G27/993/ PK WND 2828/32/
8/500 53009

1 P.M.
Weather: Broken stratocumulus, virga distant W-N-ENE
Temperature: 48F; Dew Point: 25F; Relative Humidity: 40%
Wind: W @ 19G32 kts, peak wind WNW 39mph at 12:26 P.M.
Sea-level pressure: 1013.0 mb; 29.91 in. Hg: falling, then more rapidly
Visibility: 70 miles
6-hr Max temp: 49F
6-hr Min temp: 38F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 E55 BKN 70 130/48/25/2819G32/991/ VIRGA DSNT W-N-ENE
PK WND 2934/26/ 8/500 58007 10049 20038

————————————————————–

SUMMARY FOR SUNDAY, APRIL 5, 2026

TEMPERATURE (DEGREES F)
MAX…….55   NORMAL…..52
MIN…….36   NORMAL…..34
MEAN……46   NORMAL…..43

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….+3
TOTAL DEPARTURE FOR THE MONTH………………………+27 [+5.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….19  DEPARTURE……..-3
TOTAL HEATING UNITS FOR THE MONTH (MAR)……….89  DEPARTURE…….-27
TOTAL HEATING UNITS FOR THE SEASON………….5407  DEPARTURE…….-56
TOTAL HEATING UNITS LAST SEASON TO DATE……..5028  DEPARTURE……+379

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)………..35 NW   @   09:23 P.M.
VECTOR #1 (1-Sec)……….36 NW   @   09:23 P.M.
VECTOR #2 (1-Sec)……….35 NW   @   09:23 P.M.
DAVIS #1……………….35 NNW  @   09:23 P.M.
DAVIS #2 ………………34 W    @   08:37 P.M.
RMY #1 (Instantaneous)…..38 NW   @   09:23 P.M.
RMY #2 (Instantaneous)…..36 WNW  @   08:36 P.M.
MERLIN…………………M
RICHARDS (C5C) (Inst)……34 NW   @   09:23 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………21 NW   @   09:42 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..21 NW   @   06:36 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..24 WNW  @   08:30 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………22 NW   @   09:40 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………23 WNW  @   08:30 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..22 NW   @   09:17 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..23 WNW  @   08:30 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………22 NW   @   09:17 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..10.8 SSW [259 total miles] VECTOR #1………………11.3
VECTOR #2………………12.0
DAVIS #1……………….11.3 SW
DAVIS #2……………….11.6 WSW
RMY #1…………………11.2 SW
RMY #2…………………11.9 SSW
RICHARDS (C5C)………….11.3

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.15 DEPARTURE…..-0.03
TOTAL PRECIPITATION FOR THE MONTH (APR)……..0.82 DEPARTURE…..-0.03
TOTAL PRECIPITATION FOR THE YEAR (2026)…….12.49 DEPARTURE…..-2.38

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE…..-0.1
TOTAL SNOWFALL FOR THE MONTH (APR)…………..0.0 DEPARTURE…..-0.9
TOTAL SNOWFALL FOR THE SEASON (2025-2026)……81.6 DEPARTURE….+13.8

————————————————————–

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/…/..        35 NE  VEC1 34 ENE RMY 35
4/2  38/34/36/-5/0.45/0.0/…/..         31 E   VEC1 31 E   RMY 33
4/3  67/35/51/+9/0.04/0.0/…/..         31 SW  VEC1 31 SW  RMY 35
4/4  58/35/47/+5/0.01/0.0/…/..         39 ENE VEC1 38 ENE RMY 42
4/5  55/36/46/+3/0.16/0.0/…/..         35 NW  VEC1 36 NW  RMY 38

4/6 The low since midnight is 35F, the daily normal low is 34F.

————————————————————–

APRIL DAILY RECORDS TO DATE

NONE.

————————————————————–

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

RECORDS FOR APRIL 6
HIGH 82 IN 1921
LOW 16 IN 1982
PRE 1.72 INS IN 1886
SNOW 12.3 INS IN 1982
WIND 71e MPH WNW IN 1940

RECORDS FOR APRIL 7
HIGH 90 IN 2010
LOW 13 IN 1982
PRECIP 1.72 IN. IN 1924
SNOWFALL 4.5 IN. IN 1967, 1996
PEAK GUST 65 MPH WNW IN 1982

TODAY’S REPORT PREPARED BY: Matt Douglas/Amanda Joly

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Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
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