Tuesday, August 27, 2024

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

TUESDAY, AUGUST 27, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0505E
SUNSET:  1826E

MAINLY SUNNY, WARM, AND HUMID TODAY WITH VERY LIGHT WIND….

Skies were clear all morning, but some cumulus clouds have popped
up into early this afternoon as the day time heating does its
job.

Temperatures have warmed into the low 80s early this afternoon
with the dew point holding in the mid 60s. With the lack of wind,
it really feels summery out there today.

As mentioned, the winds has been quite light today, even going
calm at times. The average speed for the day so far is only around
5mph. The peak gust so far is only 12mph, which occurred just
before 2:30am this morning.

Visibility has been quite limited today due to thin fog early this
morning, and general haziness thereafter. The view has only been
between 15-20 miles once again today.

The maximum temperature so far today is 82F, which is 3 degrees
above the normal high of 79F. The minimum temperature since
midnight is 61F, which is equal to the normal low of 61F.

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Today’s Observations:

7 A.M.
Weather: Clear
Temperature: 67F; Dew Point: 64F; Relative Humidity: 89%
Wind: N @ 2 kts, wind light
Sea-level pressure: 1020.4 mb ; 30.13 in. Hg: rising unsteadily
Visibility: 15 miles, thin fog
6-hr Max temp: 67F
6-hr Min temp: 61F
24-hr Precip:  Trace
BHO SA 1155 CLR 15 204/67/64/3602/013/ THN F ALQDS WND LGT/ 8/000 52006
70000 10067 20061

10 A.M.
Weather: Clear, few cumulus distant W-N-NNE, fog bank offshore
distant NE-E
Temperature: 76F; Dew Point: 63F; Relative Humidity: 64%
Wind: NW @ 3 kts, wind light
Sea-level pressure: 1020.5 mb; 30.14 in. Hg: rising, then steady
Visibility: 20 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 CLR 20 205/76/63/3103/014/ FEW CU DSNT W-N-NNE
F BNK OFFSHR DSNT NE-E HAZY WND LGT/ 8/200 51001

1 P.M.
Weather: Scattered cumulus, thin scattered cirrus, fog bank offshore
distant NNE-E
Temperature: 81F; Dew Point: 65F; Relative Humidity: 59%
Wind: N @ 3 kts, wind light and variable
Sea-level pressure: 1019.0 mb; 30.09 in. Hg: falling, then more rapidly
Visibility: 20 miles, 10 miles NNE-E, hazy
6-hr Max temp: 82F
6-hr Min temp: 67F
6-hr Precip: 0.00 inches
BHO SA 1755 40 SCT 250 -SCT 20 190/81/65/3603/009/ F BNK OFFSHR DSNT
NNE-E VSBY 10 NNE-E HAZY WND L/V/ 8/201 58015 10082 20067
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SUMMARY FOR MONDAY, AUGUST 26, 2024

TEMPERATURE (DEGREES F)
MAX…….80  NORMAL…..79
MIN…….64  NORMAL…..61
MEAN……72  NORMAL…..70

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+2
TOTAL DEPARTURE FOR THE MONTH…………………….-14 [-0.7 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY…………….0  DEPARTURE……..-1
TOTAL HEATING UNITS FOR THE MONTH……………10  DEPARTURE……..+3
TOTAL HEATING UNITS FOR THE SEASON…………..10  DEPARTURE……..-5
TOTAL HEATING UNITS LAST SEASON TO DATE……….1  DEPARTURE……..-9

COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….7  DEPARTURE……..+1
TOTAL COOLING UNITS FOR THE MONTH…………..174  DEPARTURE……..-9
TOTAL COOLING UNITS FOR THE SEASON………….671  DEPARTURE……+101
TOTAL COOLING UNITS LAST SEASON TO DATE……..555  DEPARTURE……+116

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)……….E18 NE   @   11:04 A.M.
VECTOR #1 (1-Sec)……….18 NE   @   11:03 A.M.
VECTOR #2 (1-Sec)……….18 S    @   04:01 P.M.
DAVIS #1……………….19 S    @   04:01 P.M.
DAVIS #2 ………………21 S    @   02:57 P.M.
RMY #1 (Instantaneous)…..17 NE   @   11:03 A.M.
RMY #2 (Instantaneous)…..18 S    @   04:01 P.M.
MERLIN…………………17 NE
RICHARDS (C5C) (Inst)…..OTS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………12 W    @   12:12 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..12      @   12:05 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..13      @   12:04 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………13 W    @   12:05 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………14 S    @   04:05 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..12 S    @   04:06 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..13 SSE  @   03:32 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….6.4 WNW [153 total miles] VECTOR #1……………..7.0
VECTOR #2……………..7.3
DAVIS #1………………7.0 WNW
DAVIS #2………………7.0 NW
RMY #1………………..6.9 NW
RMY #2………………..7.2 WNW
RICHARDS (C5C)…………OTS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…….TRACE DEPARTURE…..-0.12
TOTAL PRECIPITATION FOR THE MONTH…………..2.96 DEPARTURE…..-0.36
TOTAL PRECIPITATION FOR THE YEAR (2024)…….41.21 DEPARTURE…..+7.19

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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/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  84/62/73/+3/0.00/…/..             17 W   VEC1 17 W   RMY 17
8/26  80/64/72/+2/T/…/..                18 NE  VEC1 18 NE  RMY 17

8/27  The low since midnight is 61F, the daily normal low is 61F.

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AUGUST DAILY RECORDS TO DATE

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

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

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

RECORDS FOR AUGUST 27
HIGH 99F IN 1948
LOW 44F IN 1885
PRECIP 2.77 INCHES IN 1946
PEAK GUST 48 MPH NW IN 1983

RECORDS FOR AUGUST 28
HIGH 95F IN 1948
LOW 43F IN 1885
PRECIP 1.80 INCHES IN 1922
PEAK GUST 87 MPH SSE IN 1971 (DORIA)

TODAY’S REPORT PREPARED BY: Matt Douglas