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Tuesday, October 8, 2024

October 8, 2024

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA TUESDAY, OCTOBER 8, 2024 ALL TIMES ARE…

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

TUESDAY, OCTOBER 8, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0550E
SUNSET:  1713E

A VERY PLEASANT FALL DAY WITH PLENTY OF SUNSHINE AND SEASONABLY
COOL TEMPS….

The weather system that pushed through yesterday bringing us clouds
and rain showers has moved well offshore by this morning. The storm
total rainfall was 0.27″, which is the total for the month to date.

Today has featured plenty of sunshine as weak high pressure attempts
to build into the region. The air today is crystal clear with 80 miles
of visibility being observed all day!

Temperatures started the day in the mid 40s, but have warmed to the
low to mid 60s by early this afternoon. The dew point is dropping off
from the upper 40s early this morning into the upper 30s early this
afternoon. This is indicative of a rather dry (and chilly) air mass
moving into the area.

Winds are out of the northwest today averaging at around 10mph. The
peak gust so far is 21mph, which occurred just after 11am.

The maximum temperature so far today is 63F, which is 1 degree below
the normal high of 64F. The minimum temperature since midnight is 45F,
which is 2 degrees below the normal low of 47F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Clear, few altocumulus/castellanus distant WNW and distant
NNE-E-SSW
Temperature: 47F; Dew Point: 47F; Relative Humidity: 99%
Wind: NW @ 8G14 kts
Sea-level pressure: 1011.2 mb; 29.86 in. Hg: rising unsteadily
Visibility: 80 miles
6-hr Max temp: 52F
6-hr Min temp: 45F
24-hr Precip:  0.25 inches
BHO SA 1155 CLR 80 112/47/47/3208G14/986/ FEW AC/ACC DSNT WNW AND
DSNT NNE-E-SSW/ 8/080 52011 70025 10052 20045

10 A.M.
Weather: Clear, few stratocumulus distant SSW-NW, few altocumulus
distant NW, few altocumulus castellanus distant NE-SSE
Temperature: 57F; Dew Point: 42F; Relative Humidity: 55%
Wind: NW @ 10G16 kts
Sea-level pressure: 1012.5 mb; 29.90 in. Hg: rising, then falling
Visibility: 80 miles
3-hr Precip: 0.00 inches
BHO SA 1455 CLR 80 125/57/42/3210G16/990/ FEW SC DSNT SSW-NW FEW AC
DSNT NW FEW ACC DSNT NE-SSE/ 8/580 55013

1 P.M.
Weather: Clear, few cumulus distant ESE-S-W-N, few altocumulus
distant NNW-N, few altocumulus castellanus distant NE-ESE, few
cirrus distant SE-SW-W
Temperature: 63F; Dew Point: 38F; Relative Humidity: 38%
Wind: WNW @ 8G15 kts
Sea-level pressure: 1011.0 mb; 29.85 in. Hg: falling, then more slowly
Visibility: 80 miles
6-hr Max temp: 63F
6-hr Min temp: 47F
6-hr Precip: 0.00 inches
BHO SA 1755 CLR 80 110/63/38/2908G15/985/ FEW CU DSNT ESE-S-W-N
FEW AC DSNT NNW-N FEW ACC DSNT NE-ESE FEW CI DSNT SE-SW-W/ 8/281
56015 10063 20047

————————————————————–

SUMMARY FOR MONDAY, OCTOBER 7, 2024

TEMPERATURE (DEGREES F)
MAX…….60  NORMAL…..64
MIN…….51  NORMAL…..47
MEAN……56  NORMAL…..56

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………0
TOTAL DEPARTURE FOR THE MONTH…………………….+21 [+2.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY…………….9  DEPARTURE……..-1
TOTAL HEATING UNITS FOR THE MONTH……………35  DEPARTURE…….-25
TOTAL HEATING UNITS FOR THE SEASON………….105  DEPARTURE…….-72
TOTAL HEATING UNITS LAST SEASON TO DATE……..112  DEPARTURE……..-7

COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….0  DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH…………….0  DEPARTURE……..-4
TOTAL COOLING UNITS FOR THE SEASON………….757  DEPARTURE…….+83
TOTAL COOLING UNITS LAST SEASON TO DATE……..704  DEPARTURE…….+53

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)……….E29 SSE  @   07:38 A.M.
VECTOR #1 (1-Sec)……….29 SSE  @   07:18 A.M.
VECTOR #2 (1-Sec)……….28 SE   @   07:12 A.M.
DAVIS #1……………….28 SE   @   07:38 A.M.
DAVIS #2 ………………35 S    @   08:53 A.M.
RMY #1 (Instantaneous)…..31 SSE  @   07:02 A.M.
RMY #2 (Instantaneous)…..29 SE   @   07:12 A.M.
MERLIN…………………25 S
RICHARDS (C5C) (Inst)…..OTS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………21 SSE  @   06:54 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..21      @   07:39 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..20      @   06:56 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………20 SSE  @   07:39 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………19 SSE  @   06:56 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..20 SSE  @   07:39 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..21 SSE  @   07:13 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..9.8 SSE [235 total miles] VECTOR #1……………..10.3
VECTOR #2……………..10.8
DAVIS #1……………….9.8 SSE
DAVIS #2……………….9.8 SSE
RMY #1…………………9.9 S
RMY #2………………..10.8 S
RICHARDS (C5C)………….OTS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.25 DEPARTURE…..+0.08
TOTAL PRECIPITATION FOR THE MONTH…………..0.27 DEPARTURE…..-0.89
TOTAL PRECIPITATION FOR THE YEAR (2024)…….43.31 DEPARTURE…..+3.48

————————————————————–

PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 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

10/1  66/55/61/+3/T/134/19                28 ENE VEC1 28 ENE RMY 29
10/2  66/52/59/+1/T/252/36                21 ENE VEC1 20 ENE RMY 20
10/3  72/52/62/+5/0.00/…/..             23 S   VEC1 23 S   RMY 23
10/4  74/54/64/+7/0.00/…/..             23 SW  VEC1 22 SW  RMY 22
10/5  72/52/62/+5/T/…/..                24 NNW VEC1 23 NNW RMY 24
10/6  65/47/56/0/0.00/…/..              20 SE  VEC1 19 SE  RMY 18
10/7  60/51/56/0/0.27/…/..              29 SSE VEC1 29 SSE RMY 31

10/8  The low since midnight is 45F, the daily normal low is 47F.

————————————————————–

OCTOBER DAILY RECORDS TO DATE

NONE.

————————————————————–

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

RECORDS FOR OCTOBER 8
HIGH 81F IN 1916,1990
LOW 28F IN 1919
PRECIP 2.22 INCHES IN 1891
SNOWFALL TRACE IN 1988, 2001 (EARLIEST DATE)
PEAK GUST 60 MPH NE IN 1996

RECORDS FOR OCTOBER 9
HIGH 82F IN 2011
LOW 29F IN 1907,1937
PRECIP 2.54 INCHES IN 1976
SNOWFALL TRACE IN 1988, 2001
PEAK GUST 81e MPH S IN 1976 (RECORD FOR MONTH)

TODAY’S REPORT PREPARED BY: Matt Douglas

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Please read the full Policy before accessing Observatory data · Effective January 1, 2025

Notice: By accessing, downloading, or using any Blue Hill Observatory data or services, you unconditionally accept and agree to be bound by this Policy in its entirety. If you do not agree, you may not access or use Observatory data.
Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
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