Sunday, June 8, 2025
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, JUNE 8, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0407E
SUNSET: 1920E
SMOKE ALOFT AND OVERCAST CONDITIONS KEEP TEMPERATURES BELOW
NORMAL TODAY, COOL AND DRY
The front that passed through yesterday netted us 0.95 inches of
rain for the day, which was needed since we were almost an inch
below normal for the month. Currently the departure is -0.17 inches
for the month and -1.03 inches for the year.
Today has been hazy and cool, mostly due to the wildfire smoke that
has once again settled over the region. While Blue Hill hasn’t been
under any type of air quality alert, the smoke is most definitely
present, and has impacted our visibility dramatically.
The mostly overcast conditions today have kept the sunshine from
occurring, though at times the sun has been dimly visible. Added with
a gentle sea breeze, the temperatures have remained below normal today.
Dew points have varied in the upper 50s to lower 60s, making for a
somewhat stickiness feel to the air.
We have had a decent east-north easterly flow from the ocean for much
of the day today. The average speed so far is 10mph. The peak gust
for the day so far is 21mph which occurred around 9:30am.
As mentioned, the visibility has been overall poor. This morning we
had the ‘best’ visibility, at 10 miles. Smoke and persistent hazy
conditions have prevented us from even seeing the Boston city skyline
except for the early morning hours.
The maximum temperature for today is 67F degrees, which is 6 degrees
below the normal high of 73F. The minimum temperature since midnight
is 57F degrees, which is 2 degrees above the normal low of 55F.
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Today’s Observations:
7 A.M.
Weather: Broken cirrostratus
Temperature: 60F; Dew Point: 60F; Relative Humidity: 98%
Wind: NE @ 8 kts
Sea-level pressure: 1012.0 mb; 29.88 in. Hg: rising unsteadily
Visibility: 8 miles, 3 miles E-SSW, thin fog all quadrants
6-hr Max temp: 67F
6-hr Min temp: 64F
24-hr Precip: 0.00 inches
BHO SA 1155 E220 BKN 10 120/60/60/0508/988/ THN F ALQDS
K LYR ALF ALQDS SUN DMLY VSBL HAZY/ 8/006 52022 70095 10061
20057
10 A.M.
Weather: Overcast altocumulus
Temperature: 64F; Dew Point: 59F; Relative Humidity: 83%
Wind: ENE @ 10 kts
Sea-level pressure: 1013.3 mb; 29.92 in. Hg: rising unsteadily
Visibility: 7 miles, 4 miles NW-NNE, smoke layer aloft all
quadrants, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 E150 OVC 7 133/64/59/0710/992/ K LYR ALF ALQDS VSBY
4 NW-NNE HAZY/ 8/05/ 52013
1 P.M.
Weather: Overcast altocumulus
Temperature: 67F Dew Point: 60F; Relative Humidity: 78%
Wind: E @ 5 kts, wind light
Sea-level pressure: 1014.4 mb; 29.96 in. Hg: rising, then steady
Visibility: 8 miles, smoke layer aloft all quadrants, hazy
6-hr Max temp: 67F
6-hr Min temp: 60F
6-hr Precip: 0.00 inches
BHO SA 1755 E150 OVC 8 144/67/60/0905/996/ K LYR ALF ALQDS HAZY
WND LGT/ 8/05/ 51011 10067 20060
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SUMMARY FOR SATURDAY, JUNE 7, 2025
TEMPERATURE (DEGREES F)
MAX…….71 NORMAL…..73
MIN…….60 NORMAL…..55
MEAN……66 NORMAL…..64
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….+2
TOTAL DEPARTURE FOR THE MONTH………………………+26 [+3.5 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY……………..0 DEPARTURE……..-4
TOTAL HEATING UNITS FOR THE MONTH…………….16 DEPARTURE…….-13
TOTAL HEATING UNITS FOR THE SEASON………….5631 DEPARTURE……-543
TOTAL HEATING UNITS LAST SEASON TO DATE……..5379 DEPARTURE……+252
COOLING DEGREE DAYS (SEASON JAN 2025 THRU DEC 2025)
TOTAL COOLING UNITS FOR YESTERDAY……………..1 DEPARTURE……..-1
TOTAL COOLING UNITS FOR THE MONTH…………….24 DEPARTURE…….+10
TOTAL COOLING UNITS FOR THE SEASON……………41 DEPARTURE……..-1
TOTAL COOLING UNITS LAST SEASON TO DATE……….41 DEPARTURE…….-15
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)………..26 NE @ 03:49 P.M.
VECTOR #1 (1-Sec)……….26 NE @ 03:49 P.M.
VECTOR #2 (1-Sec)……….25 NE @ 03:40 P.M.
DAVIS #1……………….25 NE @ 03:49 P.M.
DAVIS #2 ………………23 NE @ 03:34 P.M.
RMY #1 (Instantaneous)…..25 NE @ 03:49 P.M.
RMY #2 (Instantaneous)…..25 NE @ 03:40 P.M.
MERLIN…………………23 NNE
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………17 NE @ 03:42 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..17 @ 03:49 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17 @ 03:42 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………17 NE @ 03:49 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………17 ENE @ 03:42 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..16 NE @ 03:49 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 NE @ 03:42 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………6.9 N [165 total miles]
VECTOR #1……………….7.4
VECTOR #2……………….7.7
DAVIS #1………………..7.0 N
DAVIS #2………………..7.4 ENE
RMY #1………………….7.3 WSW
RMY #2………………….7.7 WSW
RICHARDS (C5C)…………..OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.95 DEPARTURE…..+0.78
TOTAL PRECIPITATION FOR THE MONTH…………..0.96 DEPARTURE…..-0.17
TOTAL PRECIPITATION FOR THE YEAR (2025)…….22.70 DEPARTURE…..-1.03
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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
6/8 The low since midnight is 57F, the daily normal low is 55F.
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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 8
HIGH 94F IN 1984
LOW 37F IN 1932
PRECIP 1.11 INS IN 1923
PEAK GUST 86e MPH WNW IN 1946 [Record for month]
RECORDS FOR JUNE 9
HIGH 94F IN 2008
LOW 40F IN 1980
PRECIP 2.08 INCHES IN 1931
PEAK GUST 67 MPH NW IN 1973
TODAY’S REPORT PREPARED BY: Amanda Joly
