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Thursday, January 19, 2023

January 19, 2023

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA THURSDAY, JANUARY 19, 2023 ALL TIMES ARE…

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

THURSDAY, JANUARY 19, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0709E
SUNSET:  1640E

SLIGHTLY WARMER THAN AVERAGE DAY WITH OVERCAST SKIES AND LIGHT WIND….

Today we observed increasing cloud cover throughout the day
leaving us with overcast skies for the 10 A.M. and 1 P.M.
observations. At the 7 A.M. observation we had breaks in the
sky cover, revealing a few blue patches to the east.
Temperatures today were slightly above the normal of 34F,
reaching 37F by 1 P.M. Wind decreased and was light for
most of the day. Visibility remained fairly consistent between
70-75 miles throughout the day.
The high so far today is 37F, which is 3 degrees above
the normal maximum of 34F. The low since midnight is 32F,
which is 14 degrees above the normal minimum of 18F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Broken cirrostratus, few cumulus NNE-E
Temperature: 32F; Dew Point: 30F; Relative Humidity: 75%
Wind: W @ 7 kts
Sea-level pressure: 1016.3 mb; 30.01 in. Hg: rising steadily
Visibility: 70 miles
6-hr Max temp: 35F
6-hr Min temp: 32F
24-hr Precip:  0.03 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 250 BKN 70 163/32/30/2807/001/ FEW CU NNE-E / 8/106
52020 70003 10035 20032

10 A.M.
Weather: Broken altostratus, overcast cirrostratus, Few
cumulus E-ESE
Temperature: 35F; Dew Point: 32F; Relative Humidity: 92%
Wind: NNW @ 2 kts, Wind Light
Sea-level pressure: 1017.3 mb; 30.04 in. Hg: rising, then
more slowly
Visibility: 75 miles
3-hr Precip:  0.00 ins
3-hr Snowfall: 0.0 ins
BHO SA 1455 190 BKN 250 OVC 75 173/35/32/3402/004/ FEW CU E-ESE
WND LGT/ 8/137 52010

1 P.M.
Weather: Overcast altostratus, few distant cumulus E-WSW
Temperature: 37F; Dew Point: 30F; Relative Humidity: 75%
Wind: WSW @ 1 kt, Wind light
Sea-level pressure: 1014.9 mb; 29.97 in. Hg: falling, then more slowly
Visibility: 70 miles
6-hr Max temp: 38F
6-hr Min temp: 32F
6-hr Precip:  0.00 ins
6-hr Snowfall: 0.0 ins
Snow Depth: 0 ins.
BHO SA 1755 140 OVC 70 149/37/30/2501/997/ FEW DSNT CU E-WSW WND LGT/
8/12/ 56024 10038 200032

————————————————————–

SUMMARY FOR WEDNESDAY, JANUARY 18, 2023

TEMPERATURE (DEGREES F)
MAX…….49   NORMAL…..34
MIN…….35   NORMAL…..18
MEAN……42   NORMAL…..26

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..+16
TOTAL DEPARTURE FOR THE MONTH……………….+163 [+8.9 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………23  DEPARTURE…….-16
TOTAL HEATING UNITS FOR THE MONTH…………..520  DEPARTURE……-164
TOTAL HEATING UNITS FOR THE SEASON…………2430  DEPARTURE……-464
TOTAL HEATING UNITS LAST SEASON TO DATE…….2894  DEPARTURE……-142

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….37 WNW @ 13:29 P.M.
VECTOR #2 (Instantaneous)..39     @ 13:29 P.M.
DAVIS #2 ………………35 WNW @ 13:29 P.M.
RMY #2 (Instantaneous)…..38 WNW @ 13:29 P.M.
VECTOR #1……OUT OF SERVICE D/T RENOVATIONS
DAVIS #1…….OUT OF SERVICE D/T RENOVATIONS
RMY #1………OUT OF SERVICE D/T RENOVATIONS
MERLIN………OUT OF SERVICE D/T RENOVATIONS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………25 WNW @ 13:29 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..27     @ 13:29 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………26 WNW @ 13:29 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..26 WNW @ 13:29 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE….OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE RMY #1 AVERAGE……OUT OF SERVICE D/T RENOVATIONS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….13.5 WNW [324 total miles] VECTOR #2……………..14.2
DAVIS #2………………14.2 WNW
RMY #2………………..14.1 WNW
RMY #1……….OUT OF SERVICE D/T RENOVATIONS
VECTOR #1…….OUT OF SERVICE D/T RENOVATIONS
DAVIS #1……..OUT OF SERVICE D/T RENOVATIONS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.03 DEPARTURE…..-0.11
TOTAL PRECIPITATION FOR THE MONTH…………..2.63 DEPARTURE…..-0.07
TOTAL PRECIPITATION FOR THE YEAR……………2.63 DEPARTURE…..-0.07

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH………………..5.2 DEPARTURE……-5.1
TOTAL SNOWFALL FOR THE SEASON (2022-2023)…….7.9 DEPARTURE…..-17.5

————————————————————–

PRELIMINARY CLIMATE SUMMARY FOR JANUARY CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN)/SUN(%)/PEAK GUST/VEC1/RMY GUST
VEC1: Vector #1 1-second gust
RMY:  R.M. Young wind gust recording system (Instantaneous)
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M:    Missing data

1/1   53/38/46/+17/0.04/0.0/412/75        39 WNW  VEC1 N/A    RMY 60
1/2   49/33/41/+13/0.00/0.0/044/08        39 WNW  VEC1 N/A    RMY 39
1/3   48/37/43/+15/0.50/0.0/000/00        23 S    VEC1 N/A    RMY 24
1/4   43/37/40/+12/0.31/0.0/000/00        23 NE   VEC1 N/A    RMY 23
1/5   43/33/38/+10/0.23/0.0/000/00        34 ENE  VEC1 N/A    RMY 37
1/6   35/31/33/+5/0.18/1.0/000/00         19 NNE  VEC1 N/A    RMY 19
1/7   40/30/35/+8/0.00/0.0/105/19         22 NW   VEC1 N/A    RMY 23
1/8   36/20/28/+1/0.00/0.0/517/93         26 NNW  VEC1 N/A    RMY 28
1/9   42/26/34/+7/T/0.1/267/48            27 NW   VEC1 N/A    RMY 27
1/10  41/25/33/6/0.00/0.0/318/57          28 NW   VEC1 N/A    RMY 28
1/11  33/18/26/-1/T/0.1/358/64            19 N    VEC1 N/A    RMY 18
1/12  48/28/38/+11/0.29/0.1/000/00        45 S    VEC1 N/A    RMY 46
1/13  55/36/46/+20/0.62/0.0/000/00        54 SSW  VEC1 N/A    RMY 56
1/14  36/29/33/+7/0.11/T/000/00           30 NNE  VEC1 N/A    RMY M
1/15  33/26/30/+4/0.10/1.2/000/00         45 NNE  VEC1 N/A    RMY 45
1/16  30/26/28/+2/0.22/2.7/000/00         36 NNE  VEC1 N/A    RMY 37
1/17  47/25/36/+10/…/…/…/..         22 WSW  VEC1 N/A    RMY 23
1/18  49/35/42/+16/0.03/0.0/…/..        37 NW   VEC1 N/A    RMY 38

1/19 The low since midnight is 32F, the daily normal low is 18F

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

RECORDS FOR JANUARY 19
HIGH 59F IN 1973
LOW -11F IN 1887
PRECIP 2.34 INS. IN 1936
SNOWFALL 10.5 INS. IN 1936
PEAK GUST 93e MPH WNW IN 1943

RECORDS FOR JANUARY 20
HIGH 59F IN 1951
LOW -9F IN 1901
PRECIP 1.95 INS. IN 1978
SNOWFALL 19.0 INS. IN 1978
PEAK GUST 76e MPH NE IN 1978

TODAY’S REPORT PREPARED BY: Kaitlin Geagan

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Blue Hill Observatory & Science Center · Legal

Data Use & Privacy Policy

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
Part I — Data Use Policy
§ 01

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§ 05

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Effective January 1, 2025 · Blue Hill Observatory & Science Center · Milton, Massachusetts
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