Monday, June 12, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
MONDAY, JUNE 12, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0407E
SUNSET: 1921E
MORE CLOUDS AND SUN, BUT WARM AND HUMID WITH HAZY CONDITIONS….
Today the sky has featured more clouds than sun, but there has
been enough sunshine to boost temperatures in the upper 70s to
low 80s across the area. The dew point has been in the low to
mid 60s as well today, thus it feels rather humid out there
today. Definitely much more indicative of mid June weatherwise
than we’ve seen in recent weeks.
The wind was fairly light this morning, but has picked up a bit
this afternoon thanks to some mixing from aloft and an increasing
pressure gradient. The wind has been mainly out of the south to
south-southwest today with an average speed of around 11mph. The
peak gust so far for the day is around 26mph.
Visibility has been limited all day due to general haziness. We
have only been able to see 9-10 miles all day!
The high temperature so far today is 79F, this is 5 degrees above
the normal maximum of 74F. The low since midnight is 60F, this is
3 degrees above the normal minimum of 57F.
————————————————————–
Today’s Observations:
7 A.M.
Weather: Broken altocumulus, overcast cirrostratus
Temperature: 63F; Dew Point: 60F; Relative Humidity: 92%
Wind: S @ 7 kts
Sea-level pressure: 1013.1 mb; 29.92 in. Hg: rising unsteadily
Visibility: 9 miles, thin fog
6-hr Max temp: 63F
6-hr Min temp: 60F
24-hr Precip: 0.00 ins.
BHO SA 1155 E150 BKN 220 OVC 9 131/63/60/1807/992/ THN F ALQDS
SUN DMLY VSBL/ 8/077 52005 10063 20060
10 A.M.
Weather: Broken altocumulus, thin broken cirrus, few cumulus WSW-NW
Temperature: 75F; Dew Point: 64F; Relative Humidity: 69%
Wind: SSW @ 8 kts
Sea-level pressure: 1013.1 mb; 29.92 in. Hg: falling then rising
Visibility: 10 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 E150 BKN 250 -BKN 10 131/75/64/2008/992/ FEW CU WSW-NW
HAZY/ 8/251 55000
1 P.M.
Weather: Scattered cumulus, broken altocumulus, thin broken cirrus
Temperature: 76F; Dew Point: 61F; Relative Humidity: 60%
Wind: S @ 10G20 kts
Sea-level pressure: 1011.7 mb; 29.88 in. Hg: falling, then more rapidly
Visibility: 10 miles, hazy
6-hr Max temp: 79F
6-hr Min temp: 63F
6-hr Precip: 0.00 inches
BHO SA 1755 30 SCT E150 BKN 250 -BKN 10 117/76/61/1910G20/988/
HAZY/ 8/251 58014 10079 20063
————————————————————–
SUMMARY FOR SUNDAY, JUNE 11, 2023
TEMPERATURE (DEGREES F)
MAX…….80 NORMAL…..74
MIN…….55 NORMAL…..56
MEAN……68 NORMAL…..65
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………+3
TOTAL DEPARTURE FOR THE MONTH………………..-43 [-4.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….0 DEPARTURE……..-3
TOTAL HEATING UNITS FOR THE MONTH……………78 DEPARTURE…….+36
TOTAL HEATING UNITS FOR THE SEASON…………5274 DEPARTURE……-912
TOTAL HEATING UNITS LAST SEASON TO DATE…….5589 DEPARTURE……-315
COOLING DEGREE DAYS (SEASON: JAN 2023 THRU DEC 2023)
TOTAL COOLING UNITS FOR YESTERDAY…………….3 DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH……………17 DEPARTURE……..-8
TOTAL COOLING UNITS FOR THE SEASON…………..48 DEPARTURE……..-4
TOTAL COOLING UNITS LAST SEASON TO DATE………81 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)……….E23 S @ 05:42 P.M.
VECTOR #1 (1-Sec)……….24 S @ 05:41 P.M.
VECTOR #2 (1-Sec)……….24 SSW @ 05:43 P.M.
DAVIS #1……………….24 S @ 05:46 P.M.
DAVIS #2 ………………30 S @ 05:37 P.M.
RMY #1 (Instantaneous)…..24 SSE @ 05:37 P.M.
RMY #2 (Instantaneous)…..25 SSW @ 05:43 P.M.
MERLIN…………………21 S
RICHARDS (C5C) (Inst)……23 @ 05:36 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………16 SSE @ 05:29 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..16 @ 05:46 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..18 @ 05:46 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………16 S @ 05:46 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………21 S @ 05:46 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..16 S @ 05:46 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..18 SSW @ 05:46 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………16 @ 05:46 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……….8.1 S [195 total miles]
VECTOR #1………………..8.4
VECTOR #2………………..9.0
DAVIS #1…………………8.0 SW
DAVIS #2…………………9.0 SW
RMY #1…………………..8.2 SW
RMY #2…………………..8.9 SSW
RICHARDS (C5C)……………8.7
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.16
TOTAL PRECIPITATION FOR THE MONTH…………..1.46 DEPARTURE…..-0.31
TOTAL PRECIPITATION FOR THE YEAR…………..22.21 DEPARTURE…..-2.16
————————————————————–
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/-7/0.47/…/.. 20 WNW VEC1 21 ESE RMY 20 TSTM
6/10 67/51/59/-6/0.05/…/.. 26 WNW VEC1 26 WNW RMY 26 TSTM
6/11 80/55/68/+3/0.00/…/.. 23 S VEC1 24 S RMY 24
6/12 The low since midnight is 60F, the daily normal low is 57F
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 12
HIGH 94F IN 2017
LOW 40F IN 1906
PRECIP 1.79 INS 1955
PEAK GUST 58 MPH NW IN 1991
RECORDS FOR JUNE 13
HIGH 93F IN 1988
LOW 43F IN 1982
PRECIP 6.07 INS 1998 [Record for month]
PEAK GUST 69 MPH N IN 1956
TODAY’S REPORT PREPARED BY: Matt Douglas
