Saturday, June 10, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SATURDAY, JUNE 10, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0407E
SUNSET: 1920E
CHAOTIC WEATHER WITH SOME AFTERNOON THUNDER, CLOUDS, AND RANDOM SPURTS OF FOG….
Today’s weather was chaotic yet enjoyable with plenty of variability.
Periods of fog, windows of sunshine, and heavy downpours were all present
throughout the day.
Winds today have remained relatively light, with a peak gust so far of about
25 MPH at 1300E at the start of a brief storm that passed through.
Thunder was heard some time after 1 o’clock, and the storm left
as quickly as it came in. Distant virga and crespicular rays painted the
horizon as scattered storms moved across Massachusetts through the early
afternoon.
Our high temperature so far today was 67F, making today as comfortable,
although humid, as it was chaotic. Our low since midnight was 51F.
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Today’s Observations:
7 A.M.
Weather: Fog
Temperature: 53F; Dew Point: 53F; Relative Humidity: 100%
Wind: N @ 2 kts, wind light
Sea-level pressure: 1007.5 mb; 29.75 in. Hg: rising unsteadily
Visibility: 1/8 mile, fog
6-hr Max temp: 53F
6-hr Min temp: 51F
24-hr Precip: 0.47 ins.
BHO SA 1155 X W3 1/8F 075/53/53/3602/975/ WND LGT/ 8//// 52013 70047
10053 20051
10 A.M.
Weather: Broken stratocumulus
Temperature: 55F; Dew Point: 54F; Relative Humidity: 78%
Wind: NW @ 5 kts, wind light
Sea-level pressure: 1008.1 mb; 29.77 in. Hg: rising unsteadily
Visibility: 70 miles, ditant haze in all directions
3-hr Precip: 0.00 inches
BHO SA 1455 E10 BKN 70 081/55/54/3205/977/ WND LGT DSNT HZ ALQDS/
8/200 52006
1 P.M.
Weather: Rain
Temperature: 60F; Dew Point: 60F; Relative Humidity: 100%
Wind: N @ 4 kts
Sea-level pressure: 1007.7 mb; 29.76 in. Hg: falling unsteadily
Visibility: 1/8 mile, fog
6-hr Max temp: 67F
6-hr Min temp: 53F
6-hr Precip: Trace
BHO SA 1755 X W3 1/8RF 077/60/60/3604/976/ WND LGT/ 8//// 57004 6000/
10067 20053
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SUMMARY FOR FRIDAY, JUNE 9, 2023
TEMPERATURE (DEGREES F)
MAX…….64 NORMAL…..73
MIN…….49 NORMAL…..56
MEAN……57 NORMAL…..64
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………-7
TOTAL DEPARTURE FOR THE MONTH………………..-40 [-4.2 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….8 DEPARTURE……..-7
TOTAL HEATING UNITS FOR THE MONTH……………72 DEPARTURE…….+36
TOTAL HEATING UNITS FOR THE SEASON…………5268 DEPARTURE……-913
TOTAL HEATING UNITS LAST SEASON TO DATE…….5589 DEPARTURE……-321
COOLING DEGREE DAYS (SEASON: JAN 2023 THRU DEC 2023)
TOTAL COOLING UNITS FOR YESTERDAY…………….0 DEPARTURE……..-3
TOTAL COOLING UNITS FOR THE MONTH……………14 DEPARTURE……..-5
TOTAL COOLING UNITS FOR THE SEASON…………..45 DEPARTURE……..-2
TOTAL COOLING UNITS LAST SEASON TO DATE………78 DEPARTURE…….-33
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all Main Tower.
E=Estimated
F420C (Official)……….E20 WNW @ 12:07 P.M.
VECTOR #1 (1-Sec)……….21 ESE @ 12:07 P.M.
VECTOR #2 (1-Sec)……….20 WNW @ 02:07 P.M.
DAVIS #1……………….20 E @ 02:07 P.M.
DAVIS #2 ………………19 W @ 01:59 P.M.
RMY #1 (Instantaneous)…..20 ESE @ 12:07 P.M.
RMY #2 (Instantaneous)…..20 W @ 01:59 P.M.
MERLIN…………………18 ESE
RICHARDS (C5C) (Inst)……20 @ 02:07 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………15 ESE @ 12:07 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..15 @ 12:08 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..15 @ 02:08 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………16 E @ 12:08 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………15 ESE @ 12:09 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..15 ESE @ 12:07 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..15 WNW @ 02:08 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………15 @ 12:08 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……….5.4 NW [129 total miles]
VECTOR #1………………..6.0
VECTOR #2………………..6.3
DAVIS #1…………………5.7 WNW
DAVIS #2…………………5.9 NW
RMY #1…………………..6.0 NW
RMY #2…………………..6.2 NW
RICHARDS (C5C)……………6.5
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.47 DEPARTURE…..+0.31
TOTAL PRECIPITATION FOR THE MONTH…………..1.41 DEPARTURE…..-0.04
TOTAL PRECIPITATION FOR THE YEAR…………..22.16 DEPARTURE…..-1.89
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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 88/56/72/+10/0.00/859/95 21 WSW VEC1 21 WSW RMY 21
6/2 91/53/72/+10/0.53/634/70 37 ENE VEC1 39 ENE RMY 37 TSTM
6/3 53/43/48/-14/0.16/000/00 36 NE VEC1 38 NE RMY 36
6/4 52/43/48/-15/0.17/009/01 30 N VEC1 32 N RMY 29
6/5 58/47/53/-10/0.08/027/03 22 N VEC1 24 N RMY 23
6/6 72/50/61/-2/T/…/.. 31 NNW VEC1 31 NNW RMY 26 TSTM
6/7 65/50/58/-6/0.00/…/.. 28 NW VEC1 29 NW RMY 29
6/8 64/51/58/-6/T/…/.. 13 WNW VEC1 13 WNW RMY 10
6/9 64/49/57/-7/…/../ 20 WNW VEC1 21 ESE RMY 20
6/10 The low since midnight is 51F, the daily normal low is 58F
DAILY RECORDS
06/02/2023: TIED RECORD HIGH MAXIMUM TEMPERATURE OF 91F,
ALSO SET IN 1895
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: Samantha Richard
