Sunday, August 6, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, AUGUST 6, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0442E
SUNSET: 1858E
SEASONABLE TEMPERATURES UNDER MAINLY SUNNY SKIES HERE AT BLUE HILL…
Today is not a bad way to round out the weekend. Sunshine has
been the theme today with only some cumulus and some high thin
cirrus clouds being observed. The temperature has reached the
low 80s early this afternoon, which is pretty seasonable for
this time of year. The dew point is sitting pretty in the mid
50s this afternoon, so it’s not all that humid at all today.
The wind has been quite light since around 7-8am this morning
with an average speed of only 7mph. Yet another, out of many
days this season, with an average speed under 10mph.
Visibility has been somewhat limited due to haziness, with views
of 30-40 miles being the theme today.
The temperature has been seasonable today with a high so far
of 81F, which is 1 degree below the normal high of 82F. The
minimum temperature today is 60F, which is 4 degrees below
the normal low of 64F.
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Today’s Observations:
7 A.M.
Weather: Clear, few cirrus distant SE
Temperature: 64F; Dew Point: 56F; Relative Humidity: 74%
Wind: NNW @ 6 kts, wind light
Sea-level pressure: 1017.2 mb; 30.04 in. Hg: rising, then more rapidly
Visibility: 30 miles, hazy
6-hr Max temp: 64F
6-hr Min temp: 60F
24-hr Precip: 0.00 ins.
BHO SA 1155 CLR 30 172/64/56/3406/004/ FEW CI DSNT SE HAZY
WND LGT/ 8/001 53009 10064 20060
10 A.M.
Weather: Clear, few small cumulus all quadrants, few cirrus all
quadrants
Temperature: 75F; Dew Point: 54F; Relative Humidity: 47%
Wind: Estimated WSW @ 1 kt, wind light and variable
Sea-level pressure: 1016.8 mb; 30.03 in. Hg: steady, then falling
Visibility: 40 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 CLR 40 168/75/54/E2401/003/ FEW SML CU ALQDS
FEW CI ALQDS HAZY WND L/V/ 8/101 58004
1 P.M.
Weather: Scattered cumulus, thin scattered cirrus
Temperature: 80F; Dew Point: 56F; Relative Humidity: 45%
Wind: WSW @ 6 kts, wind light and variable
Sea-level pressure: 1016.0mb; 30.00 in. Hg: falling, then more slowly
Visibility: 40 miles, hazy
6-hr Max temp: 81F
6-hr Min temp: 64F
6-hr Precip: 0.00 inches
BHO SA 1755 40 SCT 250 -SCT 40 160/80/56/2506/000/ HAZY WND L/V/
8/201 56008 10081 20064
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SUMMARY FOR SATURDAY, AUGUST 5, 2023
TEMPERATURE (DEGREES F)
MAX…….83 NORMAL…..82
MIN…….66 NORMAL…..64
MEAN……75 NORMAL…..73
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….+2
TOTAL DEPARTURE FOR THE MONTH…………………-19 [-4.0 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY…………….0 DEPARTURE………0
TOTAL HEATING UNITS FOR THE MONTH…………….0 DEPARTURE……..-1
TOTAL HEATING UNITS FOR THE SEASON……………0 DEPARTURE……..-8
TOTAL HEATING UNITS LAST SEASON TO DATE……….0 DEPARTURE………0
COOLING DEGREE DAYS (SEASON: JAN 2023 THRU DEC 2023)
TOTAL COOLING UNITS FOR YESTERDAY……………10 DEPARTURE……..+2
TOTAL COOLING UNITS FOR THE MONTH……………21 DEPARTURE…….-19
TOTAL COOLING UNITS FOR THE SEASON………….443 DEPARTURE…….+17
TOTAL COOLING UNITS LAST SEASON TO DATE……..582 DEPARTURE……-139
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)……….E18 NW @ 01:49 P.M.
VECTOR #1 (1-Sec)……….16 WNW @ 12:58 P.M.
VECTOR #2 (1-Sec)……….18 WNW @ 01:28 P.M.
DAVIS #1……………….16 WSW @ 03:24 A.M.
DAVIS #2 ………………16 W @ 03:24 A.M.
RMY #1 (Instantaneous)…..17 W @ 03:24 A.M.
RMY #2 (Instantaneous)…..18 WNW @ 01:28 P.M.
MERLIN…………………M
RICHARDS (C5C) (Inst)……16 @ 03:24 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………13 W @ 03:38 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..13 @ 03:34 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..14 @ 03:30 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………13 W @ 03:34 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………14 NW @ 01:30 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..12 W @ 03:34 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..14 WNW @ 01:30 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………12 @ 03:34 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………..6.4 W [154 total miles]
VECTOR #1…………………7.0
VECTOR #2…………………7.3
DAVIS #1………………….6.7 WNW
DAVIS #2………………….6.9 NW
RMY #1……………………6.8 WNW
RMY #2……………………7.2 WNW
RICHARDS (C5C)…………….7.3
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.14
TOTAL PRECIPITATION FOR THE MONTH………….TRACE DEPARTURE…..-0.66
TOTAL PRECIPITATION FOR THE YEAR…………..34.77 DEPARTURE…..+3.41
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PRELIMINARY CLIMATE SUMMARY FOR AUGUST 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
8/1 76/58/67/-6/0.00/…/.. 24 NW VEC1 24 NW RMY 24
8/2 75/54/65/-8/0.00/…/.. 23 SSW VEC1 22 SSW RMY 23
8/3 79/59/69/-4/0.00/…/.. 32 SSW VEC1 34 SSW RMY 34
8/4 77/62/70/-3/T/…/.. 29 SSW VEC1 29 SSW RMY 29
8/5 83/66/75/+2/0.00/…/.. 18 NW VEC1 16 WNW RMY 17
8/6 The low since midnight is 60F, the daily normal low is 64F
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR AUGUST 6
HIGH 95F IN 1931, 2022
LOW 48F IN 1934
PRECIP 1.47 INCHES IN 1995
PEAK GUST 44e MPH SSW IN 1940
RECORDS FOR AUGUST 7
HIGH 96F IN 2022
LOW 51F IN 2004
PRECIP 3.32 INCHES IN 1926
PEAK GUST 51 MPH NE 1975
TODAY’S REPORT PREPARED BY: Matt Douglas
