Tuesday, June 10, 2025
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, JUNE 10, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0407E
SUNSET: 1921E
CLOUDY AND COOL WITH PERIODS OF DRIZZLE AND SHOWERS….
As a frontal system moves through the region, clouds and fog have
dominated once again today with periods of drizzle and showers
moving through. 0.03″ of rain was measured at 7am this morning
with an additional 0.15″ being measured through 1pm.
Temperatures remain on the cool side today with readings mostly
holding in the upper 50s, although we did barely reach 60F for a
brief time around the 1pm observation. This is once again around
15F degrees below the expected values for this time of year.
Winds have been mainly on the light side today, even going calm at
times this morning. The average speed for the day so far is only
around 5mph. The peak gust for the day so far is a measly 14mph,
which occurred just before 2pm this afternoon.
Visibility has been severely limited today as we’ve been in the
clouds all day. The view has varied only between 1/16th and 1/8th
of a mile.
The maximum temperature for today is 60F degrees, which is 14 degrees
below the normal high of 74F. The minimum temperature since midnight
is 54F degrees, which is 2 degrees below the normal low of 56F.
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Today’s Observations:
7 A.M.
Weather: Sky obscured, vertical visibility 200ft
Temperature: 57F; Dew Point: 57F; Relative Humidity: 100%
Wind: N @ 3 kts, wind light
Sea-level pressure: 1014.1 mb; 29.95 in. Hg: falling, then rising
Visibility: 1/16 mile, fog
6-hr Max temp: 57F
6-hr Min temp: 54F
24-hr Precip: 0.03 inches
BHO SA 1155 X W1 1/16F 141/57/57/3503/995/ WND LGT/ 8//// 53007 6002/
70003 10057 20054
10 A.M.
Weather: Sky obscured, vertical visibility 200ft
Temperature: 58F; Dew Point: 58F; Relative Humidity: 100%
Wind: Calm
Sea-level pressure: 1013.7 mb; 29.94 in. Hg: rising, then falling
Visibility: 1/8 mile, fog
3-hr Precip: Trace
BHO SA 1455 X W2 1/8F 137/58/58/0000/994/ WND CALM/ 8//// 55004 6000/
1 P.M.
Weather: Sky obscured, vertical visibility 200ft
Temperature: 60F Dew Point: 60F; Relative Humidity: 100%
Wind: E @ 7 kts
Sea-level pressure: 1012.5 mb; 29.90 in. Hg: rising, then falling
Visibility: 1/8 mile, fog
6-hr Max temp: 60F
6-hr Min temp: 57F
6-hr Precip: 0.15 inches
BHO SA 1755 X W2 1/8F 125/60/60/1007/990/ RW-E49/ 8//// 58012 6015/
10060 20057
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SUMMARY FOR MONDAY, JUNE 9, 2025
TEMPERATURE (DEGREES F)
MAX…….61 NORMAL…..73
MIN…….55 NORMAL…..56
MEAN……58 NORMAL…..64
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….-6
TOTAL DEPARTURE FOR THE MONTH………………………+17 [+1.7 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY……………..7 DEPARTURE……..+4
TOTAL HEATING UNITS FOR THE MONTH…………….27 DEPARTURE……..-9
TOTAL HEATING UNITS FOR THE SEASON………….5642 DEPARTURE……-539
TOTAL HEATING UNITS LAST SEASON TO DATE……..5384 DEPARTURE……+258
COOLING DEGREE DAYS (SEASON JAN 2025 THRU DEC 2025)
TOTAL COOLING UNITS FOR YESTERDAY……………..0 DEPARTURE……..-3
TOTAL COOLING UNITS FOR THE MONTH…………….26 DEPARTURE……..+7
TOTAL COOLING UNITS FOR THE SEASON……………43 DEPARTURE……..-4
TOTAL COOLING UNITS LAST SEASON TO DATE……….56 DEPARTURE…….-13
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)………..20 E @ 06:52 P.M.
VECTOR #1 (1-Sec)……….21 E @ 06:51 P.M.
VECTOR #2 (1-Sec)……….20 E @ 07:36 P.M.
DAVIS #1……………….21 E @ 09:46 A.M.
DAVIS #2 ………………19 E @ 06:52 P.M.
RMY #1 (Instantaneous)…..20 E @ 09:46 A.M.
RMY #2 (Instantaneous)…..20 ENE @ 06:52 P.M.
MERLIN…………………19 E
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………15 E @ 07:41 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..15 @ 07:40 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..15 @ 06:50 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………16 E @ 07:37 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………16 E @ 07:32 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..15 E @ 07:37 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..15 E @ 07:32 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………8.6 ENE [207 total miles]
VECTOR #1……………….8.4
VECTOR #2……………….9.1
DAVIS #1………………..9.2 E
DAVIS #2………………..9.1 E
RMY #1………………….8.6 ENE
RMY #2………………….9.0 ENE
RICHARDS (C5C)…………..OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.03 DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE MONTH…………..0.99 DEPARTURE…..-0.46
TOTAL PRECIPITATION FOR THE YEAR (2025)…….22.73 DEPARTURE…..-1.32
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PRELIMINARY CLIMATE SUMMARY FOR JUNE CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/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
6/1 63/47/55/-7/0.01/588/65 40 W VEC1 40 W RMY 42
6/2 70/48/59/-3/T/780/86 25 WNW VEC1 25 WSW RMY 26
6/3 79/50/65/+3/0.00/853/94 23 SSW VEC1 23 SSW RMY 21
6/4 84/58/71/+8/0.00/708/78 26 SW VEC1 27 SW RMY 28
6/5 93/61/77/+14/0.00/…/.. 18 WSW VEC1 18 SW RMY 19
6/6 81/63/72/+9/0.00/…/.. 26 ENE VEC1 27 NE RMY 27
6/7 71/60/66/+2/0.95/…/.. 26 NE VEC1 26 NE RMY 25 TSTM
6/8 67/55/61/-3/0.00/…/.. 22 ENE VEC1 21 ENE RMY 22
6/9 61/55/58/-6/0.01/…/.. 20 E VEC1 21 E RMY 20
6/10 The low since midnight is 54F, the daily normal low is 56F.
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JUNE 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 JUNE 10
HIGH 98F IN 2008
LOW 42F IN 1913, 1920
PRECIP 2.51 INCHES IN 1931
PEAK GUST 60e MPH NW IN 1941
RECORDS FOR JUNE 11
HIGH 92F IN 1973, 1984, 1997
LOW 40F IN 1972
PRECIP 2.66 INCHES IN 1922
PEAK GUST 43e MPH S IN 1945
TODAY’S REPORT PREPARED BY: MFD/KO
