Monday, June 10, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
MONDAY, JUNE 10, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0407E
SUNSET: 1921E
SPECTACULAR EARLY SUMMER DAY IN PROGRESS AT BLUE HILL….
Skies were clear this morning, but cumulus clouds developed
giving us a mix of sun and clouds this afternoon, as diurnal
processes are in full swing with the daytime heating.
Temperature and humidity levels are quite comfortable with
readings near seasonal norms for today’s date. The
temperature has reached the low to mid 70s early this
afternoon, and the dew point has been holding in the low to
mid 50s all day. This is indicative of a very delightful
air-mass in place for this time of year.
Winds have been fairly steady today, averaging around 10mph
out of the west. The peak gust for the day so far is 21mph
which occurred just before 6am this morning.
Visibility has been excellent all day holding between 60-70
miles. Absolutely spectacular considering the time of year!
The maximum temperature so far today is 74F degrees, which is
equal to 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: Clear, few stratocumulus distant WSW-N, few altocumulus
castellanus distant ESE-SE, few cirrus distant W-N-NE and distant
NE-SSE
Temperature: 59F; Dew Point: 51F; Relative Humidity: 75%
Wind: W @ 10G17 kts
Sea-level pressure: 1002.1 mb; 29.59 in. Hg: rising, then falling
Visibility: 70 miles
6-hr Max temp: 59F
6-hr Min temp: 54F
24-hr Precip: 0.25 inches
BHO SA 1155 CLR 70 021/59/51/2810G17/959/ FEW SC DSNT WSW-N FEW ACC
DSNT ESE-SE FEW CI DSNT W-N-NE AND DSNT NE-SSE/ 8/584 50008 6000/
70025 10059 20054
10 A.M.
Weather: Clear, few cumulus all quadrants, few cirrus distant WSW-N
Temperature: 68F; Dew Point: 53F; Relative Humidity: 58%
Wind: WNW @ 8 kts
Sea-level pressure: 1002.4 mb; 29.60 in. Hg: rising, then more slowly
Visibility: 70 miles
3-hr Precip: 0.00 inches
BHO SA 1455 CLR 70 024/68/53/2908/960/ FEW CU ALQDS FEW CI DSNT
WSW-N/ 8/204 51003
1 P.M.
Weather: Broken cumulus, broken cirrus
Temperature: 72F; Dew Point: 53F; Relative Humidity: 51%
Wind: W @ 7 kts
Sea-level pressure: 1002.7 mb; 29.61 in. Hg: falling, then rising
Visibility: 60 miles
6-hr Max temp: 74F
6-hr Min temp: 59F
6-hr Precip: 0.00 inches
BHO SA 1755 E50 BKN 250 BKN 60 027/72/53/2707/961/ 8/201 53003
10074 20059
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SUMMARY FOR SUNDAY, JUNE 9, 2024
TEMPERATURE (DEGREES F)
MAX…….67 NORMAL…..73
MIN…….55 NORMAL…..56
MEAN……61 NORMAL…..64
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..-3
TOTAL DEPARTURE FOR THE MONTH…………………….+32 [+3.4 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY…………….4 DEPARTURE……..+1
TOTAL HEATING UNITS FOR THE MONTH…………….5 DEPARTURE…….-31
TOTAL HEATING UNITS FOR THE SEASON…………5384 DEPARTURE……-797
TOTAL HEATING UNITS LAST SEASON TO DATE…….5268 DEPARTURE……+116
COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….0 DEPARTURE……..-3
TOTAL COOLING UNITS FOR THE MONTH……………19 DEPARTURE………0
TOTAL COOLING UNITS FOR THE SEASON…………..56 DEPARTURE……..+9
TOTAL COOLING UNITS LAST SEASON TO DATE………45 DEPARTURE…….+11
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)……….E29 WNW @ 10:36 P.M.
VECTOR #1 (1-Sec)……….28 WNW @ 10:36 P.M.
VECTOR #2 (1-Sec)……….29 WNW @ 10:35 P.M.
DAVIS #1……………….27 W @ 08:47 P.M.
DAVIS #2 ………………27 WNW @ 10:37 P.M.
RMY #1 (Instantaneous)…..26 WNW @ 08:47 P.M.
RMY #2 (Instantaneous)…..29 WNW @ 10:35 P.M.
MERLIN…………………25 W
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………21 WNW @ 10:44 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..20 @ 10:38 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..21 @ 10:35 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………21 W @ 10:38 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………21 WNW @ 10:35 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..19 WNW @ 10:38 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..21 WNW @ 10:35 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….9.3 W [223 total miles]
VECTOR #1……………..9.4
VECTOR #2……………..9.7
DAVIS #1………………9.6 W
DAVIS #2………………9.5 W
RMY #1………………..9.1 W
RMY #2………………..9.6 W
RICHARDS (C5C)…………OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.25 DEPARTURE…..+0.09
TOTAL PRECIPITATION FOR THE MONTH…………..0.40 DEPARTURE…..-1.05
TOTAL PRECIPITATION FOR THE YEAR (2024)…….31.22 DEPARTURE…..+7.17
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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 79/53/66/+4/0.00/878/97 18 WNW VEC1 20 NW RMY 20
6/2 83/52/68/+6/0.00/780/86 21 W VEC1 21 W RMY 21
6/3 78/57/68/+6/0.00/626/69 22 NE VEC1 22 NE RMY 21
6/4 75/55/65/+2/0.00/817/90 20 SSW VEC1 19 SSW RMY 19
6/5 84/56/70/+7/T/564/62 29 SW VEC1 28 SW RMY 29
6/6 74/60/67/+4/0.01/…/.. 20 SSE VEC1 20 SSE RMY 20
6/7 80/60/70/+6/0.14/…/.. 26 WNW VEC1 27 WNW RMY 27
6/8 73/54/64/0/T/…/.. 48 W VEC1 49 W RMY 47
6/9 67/55/61/-3/0.25/…/.. 29 WNW VEC1 28 WNW RMY 26
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: Matt Douglas
