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Sunday, August 25, 2024

August 25, 2024

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA SUNDAY, AUGUST 25, 2024 ALL TIMES ARE…

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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

SUNDAY, AUGUST 25, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0503E
SUNSET:  1829E

SUNSHINE THROUGH INCREASING CLOUDS; WARM AND A TOUCH HUMID….

Today has featured sunshine through the first half of the day,
however an area of high and mid level clouds have moved into the
region early this afternoon filtering the sunshine. Low level
convective clouds have also developed thanks to the heating of
the day.

The temperature has warmed into the mid 80s today with the dew
point in the upper 50s. So it definitely feels like summer out
there today, especially compared to the refreshing conditions
we had most of last week.

Winds have been on the light side, with the average speed so
far of only around 6mph. The peak gust so far is only about
15mph, taking place just after midnight.

Visibility has been somewhat limited today due to haziness. The
view has only been between 25-30 miles.

The maximum temperature so far today is 83F, which is 4 degrees
above the normal high of 79F. The minimum temperature since
midnight is 62F, which is equal to the normal low of 62F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Thin scattered cirrus
Temperature: 68F; Dew Point: 58F; Relative Humidity: 69%
Wind: NNW @ 5 kts, wind light
Sea-level pressure: 1024.3 mb ; 30.25 in. Hg: rising unsteadily
Visibility: 25 miles, hazy
6-hr Max temp: 68F
6-hr Min temp: 62F
24-hr Precip:  0.00 inches
BHO SA 1155 250 -SCT 25 243/68/58/3305/025/ HAZY WND LGT/ 8/001
52012 10068 20062

10 A.M.
Weather: Broken cirrus, few small cumulus distant NNE,
few altocumulus/castellanus distant SSW-W-NW
Temperature: 79F; Dew Point: 58F; Relative Humidity: 48%
Wind: WNW @ 3 kts, wind light
Sea-level pressure: 1024.6 mb; 30.26 in. Hg: rising, then steady
Visibility: 30 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 250 BKN 30 246/79/58/2903/026/ FEW SML CU DSNT NNE
FEW AC/ACC DSNT SSW-W-NW HAZY WND LGT/ 8/184 51003

1 P.M.
Weather: Scattered cumulus, scattered altocumulus, broken cirrostratus,
overcast cirrus, few breaks in overcast overhead-NNW-NE
Temperature: 83F; Dew Point: 58F; Relative Humidity: 43%
Wind: NW @ 2 kts, wind light and variable
Sea-level pressure: 1023.5 mb; 30.22 in. Hg: falling unsteadily
Visibility: 25 miles, hazy
6-hr Max temp: 83F
6-hr Min temp: 68F
6-hr Precip: 0.00 inches
BHO SA 1755 45 SCT 60 SCT 220 BKN 250 OVC 25 235/83/58/3102/022/
FEW BINOVC OVHD-NNW-NE HAZY WND L/V/ 8/256 57011 10083 20068

————————————————————–

SUMMARY FOR SATURDAY, AUGUST 24, 2024

TEMPERATURE (DEGREES F)
MAX…….84  NORMAL…..79
MIN…….61  NORMAL…..62
MEAN……73  NORMAL…..71

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+2
TOTAL DEPARTURE FOR THE MONTH…………………….-19 [-1.0 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……………10  DEPARTURE……..+4
TOTAL HEATING UNITS FOR THE SEASON…………..10  DEPARTURE……..-4
TOTAL HEATING UNITS LAST SEASON TO DATE……….0  DEPARTURE…….+10

COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….8  DEPARTURE……..+2
TOTAL COOLING UNITS FOR THE MONTH…………..159  DEPARTURE…….-13
TOTAL COOLING UNITS FOR THE SEASON………….656  DEPARTURE…….+98
TOTAL COOLING UNITS LAST SEASON TO DATE……..544  DEPARTURE……+112

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)……….E20 WNW  @   01:32 P.M.
VECTOR #1 (1-Sec)……….19 WNW  @   01:29 P.M.
VECTOR #2 (1-Sec)……….21 WNW  @   01:29 P.M.
DAVIS #1……………….18 WNW  @   01:29 P.M.
DAVIS #2 ………………19 WNW  @   01:29 P.M.
RMY #1 (Instantaneous)…..18 NW   @   12:52 P.M.
RMY #2 (Instantaneous)…..21 WNW  @   01:29 P.M.
MERLIN…………………17 NW
RICHARDS (C5C) (Inst)…..OTS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………13 WSW  @   11:38 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..14      @   01:31 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..15      @   01:29 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………15 W    @   01:31 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………15 WNW  @   01:30 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..14 W    @   01:31 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..15 WNW  @   01:29 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….7.1 WNW [171 total miles] VECTOR #1……………..7.6
VECTOR #2……………..8.0
DAVIS #1………………7.7 W
DAVIS #2………………7.7 WNW
RMY #1………………..7.5 W
RMY #2………………..7.9 W
RICHARDS (C5C)…………OTS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.12
TOTAL PRECIPITATION FOR THE MONTH…………..2.96 DEPARTURE…..-0.12
TOTAL PRECIPITATION FOR THE YEAR (2024)…….41.21 DEPARTURE…..+7.43

————————————————————–

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/779/90                24 W   VEC1 24 W   RMY 23
8/2   94/73/84/+11/0.01/579/67            31 SSW VEC1 31 SSW RMY 30 TSTM
8/3   92/75/84/+11/0.00/612/71            29 W   VEC1 28 W   RMY 28
8/4   85/68/77/+4/0.20/318/37             29 WSW VEC1 29 WSW RMY 31 TSTM
8/5   90/67/79/+6/T/686/80                28 SSW VEC1 28 SSW RMY 29
8/6   73/60/67/-6/0.56/009/01             26 ENE VEC1 26 ENE RMY 26
8/7   69/57/63/-10/0.18/119/14            25 NE  VEC1 23 NE  RMY 23
8/8   72/58/65/-7/0.09/187/22             20 ESE VEC1 20 ESE RMY 19
8/9   82/62/72/0/0.48/127/15              50 SSW VEC1 48 S   RMY 50
8/10  85/68/77/+5/0.37/659/78             41 SSW VEC1 41 SSW RMY 43
8/11  81/63/72/0/0.00/741/88              30 W   VEC1 29 SW  RMY 30
8/12  77/59/68/-4/0.15/638/76             35 WNW VEC1 34 WNW RMY 36
8/13  80/58/69/-3/0.00/787/94             21 NW  VEC1 22 NW  RMY 21
8/14  82/62/72/0/0.00/676/81              16 NNW VEC1 15 NNW RMY 15
8/15  84/62/73/+1/0.57/491/59             44 N   VEC1 42 N   RMY 46 TSTM
8/16  74/61/68/-4/0.00/415/50             13 ESE VEC1 13 ESE RMY 13
8/17  75/60/68/-4/0.00/323/39             17 SE  VEC1 16 SE  RMY 15
8/18  71/62/67/-4/0.09/008/01             18 SE  VEC1 19 SE  RMY 17
8/19  78/66/72/+1/0.19/164/20             23 SSW VEC1 23 SSW RMY 22 TSTM
8/20  69/54/62/-9/0.07/238/29             32 NW  VEC1 32 NW  RMY 33
8/21  73/51/62/-9/0.00/752/92             20 WNW VEC1 19 WNW RMY 20
8/22  73/52/63/-8/0.00/…/..             20 W   VEC1 20 WNW RMY 20
8/23  81/58/70/-1/0.00/…/..             22 WNW VEC1 21 WNW RMY 22
8/24  84/61/73/+2/0.00/…/..             20 WNW VEC1 19 WNW RMY 18

8/25  The low since midnight is 62F, the daily normal low is 62F.

————————————————————–

AUGUST DAILY RECORDS TO DATE

8/3  RECORD HIGH MINIMUM TEMPERATURE OF 75F,
TIED THE PREVIOUS RECORD SET IN 2020

8/15 PEAK GUST 44e MPH N,
TIED THE PREVIOUS RECORD SET IN 1941

————————————————————–

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)

RECORDS FOR AUGUST 25
HIGH 93F IN 1947, 1948, 2007
LOW 41F IN 1940
PRECIP 2.69 INCHES IN 2010
PEAK GUST 60e MPH SSW IN 1941

RECORDS FOR AUGUST 26
HIGH 96F IN 1900, 1948
LOW 46F IN 1885
PRECIP 5.85 INCHES IN 1924
PEAK GUST 55e MPH NNW IN 1947

TODAY’S REPORT PREPARED BY: Matt Douglas

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