Monday, August 14, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
MONDAY, AUGUST 14, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0450E
SUNSET: 1847E
FILTERED SUNSHINE, WARM, AND A BIT HUMID TODAY AT BLUE HILL…
While there has been a decent amount of cloud cover today,
it’s been mainly of the mid and high level varieties, thus
a decent amount of filtered sunshine has still been observed.
Temperatures have warmed into the low 80s this afternoon, which
is close to normal for mid August. The dew point has been
creeping up into the low 60s, so it does feel a bit humid out
there this afternoon.
The wind has been mainly on the light side, but fairly steady
averaging at around 10mph. The highest gust so far today has
been around 23mph.
Visibility has been excellent all day holding at a remarkable
(for this time of year) 80 miles!
The maximum temperature so far today has been 82F, which is 1
degree higher than our normal high for today of 81F. The
minimum temperature since midnight is 63F, which is equal to
the normal low of 63F.
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Today’s Observations:
7 A.M.
Weather: Broken altocumulus/castellanus, broken cirrostratus,
thin broken cirrus, virga all quadrants
Temperature: 67F; Dew Point: 59F; Relative Humidity: 77%
Wind: W @ 9 kts
Sea-level pressure: 1014.6 mb; 29.96 in. Hg: rising, then more slowly
Visibility: 80 miles
6-hr Max temp: 67F
6-hr Min temp: 63F
24-hr Precip: Trace
BHO SA 1155 E120 BKN 220 BKN 250 -BKN 80 146/67/59/2709/996/
VIRGA ALQDS/ 8/085 51009 70000 10067 20063
10 A.M.
Weather: Scattered altocumulus/castellanus, scattered cirrus,
few cumulus S-W-N, virga distant SSE-SSW
Temperature: 76F; Dew Point: 62F; Relative Humidity: 63%
Wind: WNW @ 7 kts
Sea-level pressure: 1015.4 mb; 29.98 in. Hg: rising, then falling
Visibility: 80 miles
3-hr Precip: 0.00 inches
BHO SA 1455 120 SCT 250 SCT 80 154/76/62/2907/998/ FEW CU S-W-N
VIRGA DSNT SSE-SSW/ 8/282 50008
1 P.M.
Weather: Scattered cumulus, scattered altocumulus/castellanus,
broken cirrus
Temperature: 80F; Dew Point: 62F; Relative Humidity: 56%
Wind: W @ 10G20 kts
Sea-level pressure: 1014.5 mb; 29.96 in. Hg: falling, then more rapidly
Visibility: 80 miles
6-hr Max temp: 81F
6-hr Min temp: 67F
6-hr Precip: 0.00 inches
BHO SA 1755 50 SCT 120 SCT 250 BKN 80 145/80/62/2810G20/996/
8/284 58009 10081 20067
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SUMMARY FOR SUNDAY, AUGUST 13, 2023
TEMPERATURE (DEGREES F)
MAX…….84 NORMAL…..81
MIN…….68 NORMAL…..63
MEAN……76 NORMAL…..72
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….+4
TOTAL DEPARTURE FOR THE MONTH…………………-13 [-1.2 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……..-3
TOTAL HEATING UNITS FOR THE SEASON……………0 DEPARTURE…….-10
TOTAL HEATING UNITS LAST SEASON TO DATE……….0 DEPARTURE………0
COOLING DEGREE DAYS (SEASON: JAN 2023 THRU DEC 2023)
TOTAL COOLING UNITS FOR YESTERDAY……………11 DEPARTURE……..+4
TOTAL COOLING UNITS FOR THE MONTH……………85 DEPARTURE…….-14
TOTAL COOLING UNITS FOR THE SEASON………….507 DEPARTURE…….+21
TOTAL COOLING UNITS LAST SEASON TO DATE……..679 DEPARTURE……-172
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)……….E26 SSW @ 11:05 A.M.
VECTOR #1 (1-Sec)……….26 SSW @ 11:05 A.M.
VECTOR #2 (1-Sec)……….28 SSW @ 11:12 A.M.
DAVIS #1……………….29 S @ 11:05 A.M.
DAVIS #2 ………………28 S @ 12:16 A.M.
RMY #1 (Instantaneous)…..27 WNW @ 06:42 P.M.
RMY #2 (Instantaneous)…..30 SSW @ 11:12 A.M.
MERLIN…………………24 SSW
RICHARDS (C5C) (Inst)……25 @ 06:42 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………19 SSW @ 11:12 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..19 @ 11:07 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..20 @ 11:06 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………19 SSW @ 11:07 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………21 S @ 12:42 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..19 SSW @ 11:07 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..20 SSW @ 11:06 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………18 @ 11:07 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..12.0 SSW [288 total miles]
VECTOR #1………………12.0
VECTOR #2………………12.9
DAVIS #1……………….11.9 SW
DAVIS #2……………….12.9 WSW
RMY #1…………………11.6 SW
RMY #2…………………12.9 SW
RICHARDS (C5C)………….11.7
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…….TRACE DEPARTURE…..-0.12
TOTAL PRECIPITATION FOR THE MONTH…………..0.77 DEPARTURE…..-0.93
TOTAL PRECIPITATION FOR THE YEAR…………..35.54 DEPARTURE…..+3.14
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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/-6/0.00/763/88 24 NW VEC1 24 NW RMY 24
8/2 75/54/65/-8/0.00/830/96 23 SSW VEC1 22 SSW RMY 23
8/3 79/59/69/-4/0.00/725/84 32 SSW VEC1 34 SSW RMY 34
8/4 77/62/70/-3/T/172/20 29 SSW VEC1 29 SSW RMY 29
8/5 83/66/75/+2/0.00/523/61 18 NW VEC1 16 WNW RMY 17
8/6 82/60/71/-2/0.00/839/98 20 W VEC1 19 W RMY 19
8/7 72/65/69/-4/0.14/034/04 29 SSE VEC1 30 SSE RMY 29
8/8 82/68/75/+3/0.47/187/22 39 S VEC1 42 S RMY 42
8/9 82/66/74/+2/0.00/756/89 39 WNW VEC1 38 WNW RMY 38
8/10 83/64/74/+2/0.02/254/30 28 SSW VEC1 27 SSW RMY 28
8/11 80/63/72/+0/0.07/…/.. 36 W VEC1 36 W RMY 38
8/12 84/61/73/+1/0.00/…/.. 26 SSW VEC1 26 SSW RMY 26
8/13 84/68/76/+4/T/…/.. 26 SSW VEC1 26 SSW RMY 27 TSTM
8/14 The low since midnight is 63F, the daily normal low is 63F
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR AUGUST 14
HIGH 99F IN 2002
LOW 46F IN 1964
PRECIP 3.06 INCHES IN 1919
PEAK GUST 61 MPH WNW IN 1963
RECORDS FOR AUGUST 15
HIGH 95F IN 1928
LOW 47F IN 1964
PRECIP 1.89 INCHES IN 2011
PEAK GUST 44e MPH S IN 1941
TODAY’S REPORT PREPARED BY: Matt Douglas
