Tuesday, August 6, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, AUGUST 6, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0442E
SUNSET: 1857E
COLD FRONT BRINGS RAIN AND A STEEP DROP IN TEMPERATURES ON
BLUE HILL TODAY….
Early morning showers made their way to Blue Hill giving us about
0.20″ of rain as of 1pm today. There is still rain in the area so
we expect that amount to increase.
Temperatures have taken a dramatic dive since yesterday with the
passing of a cold front early this morning. Around midnight we
were in the lower 70’s and dropped to 62F during the morning.
With the overcast skies and isolated pockets of rain coming into
the region we have not been able to recover the temperatures.
Dew points remain in the lower 60’s which is an improvement from
the 70’s that we have currently been experiencing.
Winds were more productive this morning and have slowly tapered
off to slower speeds by the afternoon. We have averaged about
9mph today with winds mostly out of the ENE. Our peak gust so
far for the day occurred around 9:30am with a speed of 26 mph.
Visibility has been rather poor today due to the showers and
low cloud deck. This morning was only 1/8 of a mile while
during the dry spell in the late morning we had some areas
that had about 20 miles of visibility. Thin fog has dominated the
area as well, further impacting the visibility.
The maximum temperature so far today is 73F, which is 8 degrees
below the normal high of 81F. The minimum temperature since
midnight is 62F, which is 2 degrees below the normal low of 64F.
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Today’s Observations:
7 A.M.
Weather: Sky obstructed, Light drizzle, precipitation very light
Temperature: 66F; Dew Point: 66F; Relative Humidity: 100%
Wind: ENE @ 8 kts
Sea-level pressure: 1014.6 mb; 29.96 in. Hg: rising, then more
slowly
Visibility: 1/8 mile, fog
6-hr Max temp: 73F
6-hr Min temp: 66F
24-hr Precip: 0.04 inches
BHO SA 1155 X W2 1/8L-F 146/66/66/0708/996/ PCPN VRY LGT RW-E53
L-B53/ 8//// 50013 6004/ 70004 10073 20066
10 A.M.
Weather: Overcast stratus
Temperature: 63F; Dew Point: 63F; Relative Humidity: 100%
Wind: ENE @ 9G18 kts
Sea-level pressure: 1015.9 mb; 30.00 in. Hg: rising, then more
slowly
Visibility: 8 miles; 1 mile N-NE, 10 miles ENE-SSE, 15 miles S-W,
8 miles WNW-NNW, thin fog all quadrants
3-hr Precip: 0.21 inches
BHO SA 1455 E3 OVC 8 159/63/63/0709G18/000/ THN F ALQDS RW-E41
VSBY 1 N-NE 10 ENE-SSE 15 S-W 8 WNW-NNW/ 8/6// 51013 6021/
1 P.M.
Weather: Overcast stratus, few lower stratus fractus NE-SE
Temperature: 63F; Dew Point: 63F; Relative Humidity: 100%
Wind: ENE @ 7 kts
Sea-level pressure: 1015.7 mb; 29.99 in. Hg: steady, then increasing
Visibility: 12 miles; 5 miles N-NNE, 10 miles NE-E-S, 20 miles SSW-W-N
thin fog all quadrants
6-hr Max temp: 66F
6-hr Min temp: 62F
6-hr Precip: 0.21 inches
BHO SA 1755 E4 OVC 12 165/63/63/0607/002/ FEW LWR STFRA NE-SE THN F
ALQDS VSBY 5 N-NNE 10 NE-E-S 20 SSW-W-N/ 8/6// 53006 10066 20062
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SUMMARY FOR MONDAY, AUGUST 5, 2024
TEMPERATURE (DEGREES F)
MAX…….90 NORMAL…..82
MIN…….67 NORMAL…..64
MEAN……79 NORMAL…..73
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+6
TOTAL DEPARTURE FOR THE MONTH…………………….+41 [+8.0 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
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 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY……………14 DEPARTURE……..+6
TOTAL COOLING UNITS FOR THE MONTH……………81 DEPARTURE…….+41
TOTAL COOLING UNITS FOR THE SEASON………….578 DEPARTURE……+152
TOTAL COOLING UNITS LAST SEASON TO DATE……..443 DEPARTURE……+135
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all on Main Tower.
E=Estimated
F420C (Official)……….E28 SSW @ 08:34 P.M.
VECTOR #1 (1-Sec)……….28 SSW @ 08:34 P.M.
VECTOR #2 (1-Sec)……….27 SSW @ 08:34 P.M.
DAVIS #1……………….26 SSW @ 08:34 P.M.
DAVIS #2 ………………26 SSW @ 08:34 P.M.
RMY #1 (Instantaneous)…..29 SSW @ 08:34 P.M.
RMY #2 (Instantaneous)…..28 SSW @ 08:34 P.M.
MERLIN…………………26 SW
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………19 SSW @ 08:34 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..18 @ 08:34 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..19 @ 08:34 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………17 SW @ 09:56 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………19 SSW @ 08:34 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..18 SSW @ 08:34 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..19 SSW @ 08:34 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….8.9 SW [214 total miles]
VECTOR #1……………..9.4
VECTOR #2……………..9.6
DAVIS #1………………9.1 WSW
DAVIS #2………………9.3 WSW
RMY #1………………..9.1 WSW
RMY #2………………..9.6 WSW
RICHARDS (C5C)…………OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.04 DEPARTURE…..-0.10
TOTAL PRECIPITATION FOR THE MONTH…………..0.25 DEPARTURE…..-0.41
TOTAL PRECIPITATION FOR THE YEAR (2024)…….38.50 DEPARTURE…..+7.14
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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 92/71/82/+9/T/…/.. 24 W VEC1 24 W RMY 23
8/2 94/73/84/+11/0.01/…/.. 31 SSW VEC1 31 SSW RMY 30 TSTM
8/3 92/75/84/+11/0.00/…/.. 29 W VEC1 28 W RMY 28
8/4 85/68/77/+4/0.20/…/.. 29 WSW VEC1 29 WSW RMY 31 TSTM
8/5 90/67/79/+6/T/…/.. 28 SSW VEC1 28 SSW RMY 29
8/6 The low since midnight is 73F, the daily normal low is 64F.
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AUGUST DAILY RECORDS TO DATE
8/3 RECORD HIGH MINIMUM TEMPERATURE OF 75F,
TIED THE PREVIOUS RECORD SET IN 2020
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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: Amanda Joly
