Thursday, August 10, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
THURSDAY, AUGUST 10, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0446E
SUNSET: 1853E
INCREASING CLOUDS, BUT WARM AND HUMID TODAY ON BLUE HILL…
We observed some filtered sunshine this morning, but clouds
have increased and thickened this afternoon as some rain
showers approach the area. The temperature was able to make
it into the low to mid 80s before the clouds thickened. For
reference, the normal high for today’s date is 81F. As of
today, the normal high and low temperatures have now begun
their respective decline toward the cold season.
The dew point has risen into the mid 60s today, thus making
it feel more humid than it was yesterday.
The wind has been a bit on the busy side with an average
speed of around 12mph and a peak gust so far of around 25mph.
Visibility has been limited all day due to haziness. The view
has been stuck at around 20 miles all day.
The maximum temperature so far today is 83F, which is 2
degrees above the normal high of 81F. The minimum temperature
today is 64F, which is 1 degree above the normal low of 63F.
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Today’s Observations:
7 A.M.
Weather: Overcast cirrostratus, few thin spots in overcast,
sun dimly visible
Temperature: 67F; Dew Point: 59F; Relative Humidity: 75%
Wind: W @ 10 kts
Sea-level pressure: 1007.3 mb; 29.75 in. Hg: rising, then steady
Visibility: 20 miles, hazy
6-hr Max temp: 68F
6-hr Min temp: 64F
24-hr Precip: 0.00 ins.
BHO SA 1155 E220 OVC 20 073/67/59/2710/975/ FEW THN SPTS INOVC
SUN OCNLY DMLY VSBL HAZY/ 8/007 51003 10068 20064
10 A.M.
Weather: Broken cirrus, few altocumulus overhead-E-S-W
Temperature: 77F; Dew Point: 64F; Relative Humidity: 64%
Wind: W @ 5 kts, wind light
Sea-level pressure: 1008.1 mb; 29.77 in. Hg: rising, then more slowly
Visibility: 20 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 E230 BKN 20 081/77/64/2605/977/ FEW AC OVHD-E-S-W HAZY
WND LGT/ 8/054 51008
1 P.M.
Weather: Broken altocumulus, overcast cirrostratus, few cumulus
distant N-ENE
Temperature: 79F; Dew Point: 63F; Relative Humidity: 59%
Wind: SW @ 10 kts
Sea-level pressure: 1006.8mb; 29.73 in. Hg: falling, then more slowly
Visibility: 20 miles, hazy
6-hr Max temp: 83F
6-hr Min temp: 67F
6-hr Precip: 0.00 inches
BHO SA 1755 E120 BKN 220 OVC 20 068/79/63/2210/973/ FEW CU DSNT N-ENE
HAZY/ 8/257 56013 10083 20067
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SUMMARY FOR WEDNESDAY, AUGUST 9, 2023
TEMPERATURE (DEGREES F)
MAX…….82 NORMAL…..81
MIN…….66 NORMAL…..64
MEAN……74 NORMAL…..72
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….+2
TOTAL DEPARTURE FOR THE MONTH…………………-20 [-2.4 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……..-2
TOTAL HEATING UNITS FOR THE SEASON……………0 DEPARTURE……..-9
TOTAL HEATING UNITS LAST SEASON TO DATE……….0 DEPARTURE………0
COOLING DEGREE DAYS (SEASON: JAN 2023 THRU DEC 2023)
TOTAL COOLING UNITS FOR YESTERDAY…………….9 DEPARTURE……..+1
TOTAL COOLING UNITS FOR THE MONTH……………50 DEPARTURE…….-20
TOTAL COOLING UNITS FOR THE SEASON………….472 DEPARTURE…….+15
TOTAL COOLING UNITS LAST SEASON TO DATE……..657 DEPARTURE……-185
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)……….E39 WNW @ 01:46 P.M.
VECTOR #1 (1-Sec)……….38 WNW @ 01:46 P.M.
VECTOR #2 (1-Sec)……….39 NW @ 08:48 A.M.
DAVIS #1……………….37 WNW @ 01:46 P.M.
DAVIS #2 ………………34 NNW @ 08:53 A.M.
RMY #1 (Instantaneous)…..38 WNW @ 01:46 P.M.
RMY #2 (Instantaneous)…..40 NW @ 08:48 A.M.
MERLIN…………………37 NW
RICHARDS (C5C) (Inst)……37 @ 01:55 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………27 NW @ 01:55 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..25 @ 01:55 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..26 @ 01:47 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………26 NW @ 01:56 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………26 NW @ 01:47 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..25 NW @ 01:55 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..25 NW @ 01:47 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………25 @ 01:55 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..14.2 W [341 total miles]
VECTOR #1………………13.8
VECTOR #2………………14.8
DAVIS #1……………….13.9 WNW
DAVIS #2……………….14.3 WNW
RMY #1…………………13.2 WNW
RMY #2…………………14.4 WNW
RICHARDS (C5C)………….13.9
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE MONTH…………..0.61 DEPARTURE…..-0.58
TOTAL PRECIPITATION FOR THE YEAR…………..35.38 DEPARTURE…..+3.49
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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/…/.. 39 S VEC1 42 S RMY 42
8/9 82/66/74/+2/0.00/…/.. 39 WNW VEC1 38 WNW RMY 38
8/10 The low since midnight is 64F, 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 10
HIGH 101F IN 1949 [STATION RECORD MAXIMUM – Tied with 8/2/1975]
LOW 49F IN 1964
PRE 2.27 INS IN 1952
PEAK GUST 88e MPH S IN 1976
RECORDS FOR AUGUST 11
HIGH 97F IN 1944
LOW 49F IN 1972
PRECIP 3.13 INCHES IN 1990
PEAK GUST 44 MPH SW IN 1971
TODAY’S REPORT PREPARED BY: Matt Douglas
