Wednesday, November 27, 2024

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

WEDNESDAY, NOVEMBER 27, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0650E
SUNSET:  1614E

A MIX OF SUN AND CLOUDS TODAY WITH SEASONABLE TEMPERATURES….

It’s not a bad day weatherwise, which is always a good thing on the
day before Thanksgiving. A mix of sun and clouds has been the theme
all day after a rather frosty start early this morning.

Temperatures started the day in the low 30s, but have recovered
nicely into the upper 40s early this afternoon. The dew point has
been fairly steady in the low to mid 30s most of the day.

Winds aren’t as busy as yesterday, but still a bit brisk today out
of the west. The average speed for the day so far is around 13mph.
The peak gust so far is 25mph, occurring at 11:17am.

The visibility has been holding at around 50-60 miles all day.

The maximum temperature for today is 49F degrees, which is 3 degrees
above the normal high of 46F. The minimum temperature since midnight
is 33F degrees, which is 3 degrees above the normal low of 30F.

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Today’s Observations:

7 A.M.
Weather: Broken Cirrostratus, broken cirrus
Temperature: 34F; Dew Point: 30F; Relative Humidity: 83%
Wind: W @ 12G17 kts
Sea-level pressure: 1015.0 mb; 29.97 in. Hg: rising unsteadily
Visibility: 50 miles
6-hr Max temp: 35F
6-hr Min temp: 33F
24-hr Precip:  0.37 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 E200 BKN 250 BKN 50 150/34/30/2612G17/997/ 8/006 52009
70037 10035 20033

10 A.M.
Weather: Thin scattered cirrus, few altocumulus/castellanus distant NW-N
Temperature: 43F; Dew Point: 34F; Relative Humidity: 68%
Wind: W @ 9G16 kts
Sea-level pressure: 1015.3 mb; 29.98 in. Hg: rising, then falling
Visibility: 50 miles
3-hr Precip:  0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 250 -SCT 50 153/43/34/2709G16/998/ FEW AC/ACC DSNT NW-N/
8/081 50003

1 P.M.
Weather: Scattered stratocumulus, scattered cirrus
Temperature: 48F; Dew Point: 35F; Relative Humidity: 59%
Wind: WNW @ 8G14 kts
Sea-level pressure: 1014.5 mb; 29.96 in. Hg: rising, then falling
Visibility: 60 miles
6-hr Max temp: 49F
6-hr Min temp: 34F
6-hr Precip:  0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 40 SCT 250 SCT 60 145/48/35/2908G14/996/ 8/504 58008
10049 20034

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SUMMARY FOR TUESDAY, NOVEMBER 26, 2024

TEMPERATURE (DEGREES F)
MAX…….44  NORMAL…..46
MIN…….35  NORMAL…..31
MEAN……40  NORMAL…..38

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+2
TOTAL DEPARTURE FOR THE MONTH……………………+125 [+4.6 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY……………25  DEPARTURE……..-2
TOTAL HEATING UNITS FOR THE MONTH…………..463  DEPARTURE……-120
TOTAL HEATING UNITS FOR THE SEASON………….836  DEPARTURE……-258
TOTAL HEATING UNITS LAST SEASON TO DATE……..969  DEPARTURE……-133

COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….0  DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH…………….5  DEPARTURE……..+5
TOTAL COOLING UNITS FOR THE SEASON………….768  DEPARTURE…….+91
TOTAL COOLING UNITS LAST SEASON TO DATE……..715  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)………..28 WNW  @   10:15 P.M.
VECTOR #1 (1-Sec)……….29 NW   @   03:33 P.M.
VECTOR #2 (1-Sec)……….27 W    @   10:28 P.M.
DAVIS #1……………….27 WNW  @   10:15 P.M.
DAVIS #2 ………………26 WNW  @   10:28 P.M.
RMY #1 (Instantaneous)…..28 NW   @   03:33 P.M.
RMY #2 (Instantaneous)…..30 W    @   10:28 P.M.
MERLIN…………………25 NW
RICHARDS (C5C) (Inst)…..OTS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………21 WNW  @   11:34 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..19      @   12:14 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..21      @   12:28 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………19 NW   @   03:35 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………21 ESE  @   12:28 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..19 ESE  @   12:14 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..21 ESE  @   12:28 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..10.5 NW [251 total miles] VECTOR #1………………10.6
VECTOR #2………………11.5
DAVIS #1……………….10.7 NW
DAVIS #2……………….11.1 N
RMY #1…………………10.4 NNE
RMY #2…………………11.4 NNE
RICHARDS (C5C)…………..OTS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.37 DEPARTURE…..+0.22
TOTAL PRECIPITATION FOR THE MONTH…………..2.98 DEPARTURE…..-0.71
TOTAL PRECIPITATION FOR THE YEAR (2024)…….46.78 DEPARTURE…..-1.07

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE MONTH………………..0.0 DEPARTURE……-1.3
TOTAL SNOWFALL FOR THE SEASON (2024-2025)…….0.0 DEPARTURE……-2.0

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PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/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

11/1   77/49/63/+16/0.00/0.0/347/56       36 WNW VEC1 36 WNW RMY 37
11/2   55/37/46/-1/0.00/0.0/228/37        21 N   VEC1 23 N   RMY 21
11/3   48/30/39/-7/0.00/0.0/595/97        20 NNW VEC1 21 NNW RMY 21
11/4   49/33/41/-5/0.00/0.0/061/10        20 SSE VEC1 21 SSE RMY 21
11/5   73/46/60/+15/0.00/0.0/505/83       35 SW  VEC1 35 SW  RMY 37
11/6   80/59/70/+25/0.00/0.0/558/92       39 WSW VEC1 39 WSW RMY 42
11/7   69/47/58/+13/0.00/0.0/519/86       37 WNW VEC1 35 WNW RMY 42
11/8   63/41/52/+7/0.00/0.0/572/95        42 WNW VEC1 42 WNW RMY 47
11/9   50/36/43/-1/0.00/0.0/599/100       40 NW  VEC1 42 NW  RMY 43
11/10  60/32/46/+2/T/0.0/388/65           29 WSW VEC1 29 SW  RMY 31
11/11  66/50/58/+15/0.08/0.0/457/77       40 SW  VEC1 42 SW  RMY 43
11/12  54/33/44/+1/0.00/0.0/545/92        48 NNW VEC1 50 NNW RMY 56
11/13  43/28/36/-7/0.00/0.0/584/99        32 N   VEC1 33 N   RMY 31
11/14  42/27/35/-7/0.00/0.0/542/92        22 NE  VEC1 22 NE  RMY 22
11/15  58/27/43/+1/0.00/0.0/580/99        28 NW  VEC1 28 NW  RMY 30
11/16  60/38/49/+7/0.00/0.0/572/98        33 NNW VEC1 35 NNW RMY 35
11/17  62/40/51/+10/0.00/0.0/553/95       26 NW  VEC1 26 NW  RMY 26
11/18  61/43/52/+11/T/0.0/418/72          29 NW  VEC1 28 NW  RMY 31
11/19  56/39/48/+7/0.00/0.0/565/98        29 NW  VEC1 29 NW  RMY 30
11/20  52/36/44/+4/T/0.0/564/98           21 E   VEC1 21 E   RMY 21
11/21  44/43/44/+4/1.27/0.0/000/00        51 ENE VEC1 50 ENE RMY 52
11/22  52/40/46/+6/0.55/0.0/…/..        44 E   VEC1 47 E   RMY 45
11/23  44/38/41/+2/0.71/0.0/…/..        46 NW  VEC1 45 NW  RMY 49
11/24  48/35/42/+3/0.00/0.0/…/..        52 WNW VEC1 53 WNW RMY 53
11/25  49/32/41/+2/0.00/0.0/…/..        33 WNW VEC1 34 WNW RMY 34
11/26  44/35/40/+2/0.37/0.0/…/..        28 WNW VEC1 29 NW  RMY 28

11/27 The low since midnight is 33F, the daily normal low is 30F.

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NOVEMBER DAILY RECORDS TO DATE

11/1 RECORD HIGH TEMPERATURE OF 77F, OLD RECORD WAS 75F IN 2003.

11/6 RECORD HIGH TEMPERATURE OF 80F, OLD RECORD WAS 74F IN 2022.

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

RECORDS FOR NOVEMBER 27
HIGH 68 IN 1896
LOW 5 IN 1932
PRECIP 2.23 INS IN 2013
SNOWFALL 16.0 INS IN 1898
PEAK GUST 68 NW IN 1997

RECORDS FOR NOVEMBER 28
HIGH 70 IN 1990
LOW 10 IN 1901,1930,1936
PRECIP 1.84 INCHES IN 1889
SNOWFALL 3.0 INS IN 1917
PEAK GUST 90 SSW IN 1958

TODAY’S REPORT PREPARED BY: Matt Douglas