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Wednesday, February 15, 2023

February 15, 2023

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA WEDNESDAY, FEBRUARY 15, 2023 ALL TIMES ARE…

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

WEDNESDAY, FEBRUARY 15, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0641E
SUNSET:  1716E

MORNING CLOUDS MOVED OUT, SUNSHINE RETURNS WITH INCREASING WIND
THIS AFTERNOON….

A weak disturbance moved through this morning with a lot of
clouds and a few light showers around (none of which fell here
at the Hill). Clouds are moving out early this afternoon with
plenty of sunshine taking over. Temperatures are responding
nicely with reading into the mid 50s early this afternoon.

The wind has increased markedly late this morning, and
especially after noon-time. Speeds are frequently gusting over
30mph with a peak thus far of 39mph. The average speed for
the day thus far is around 17mph.

Visibility was limited a bit this morning to around 40 miles,
but has improved a bit early this afternoon, to around 60 miles.

The high so far today is 54F, which is 17 degrees above the
normal maximum of 37F. The low since midnight is 35F, which
is 16 degrees above the normal low of 19F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Overcast altostratus, few breaks in overcast distant
N-E-SSE, higher clouds visible distant N-E-SSE, virga all quadrants
Temperature: 36F; Dew Point: 28F; Relative Humidity: 74%
Wind: SSW @ 14G19 kts
Sea-level pressure: 1022.7 mb; 30.20 in. Hg: falling, then rising
Visibility: 40 miles, hazy
6-hr Max temp: 36F
6-hr Min temp: 35F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 E160 OVC 40 227/36/28/2014G19/020/ FEW BINOVC DSNT
N-E-SSE HIER CLDS VSBL DSNT N-E-SSE VIRGA ALQDS HAZY/ 8/02/
55001 10036 20035

10 A.M.
Weather: Overcast altocumulus/altostratus, few breaks in overcast
SSW-SW and distant NNE, few cumulus distant N-NNE
Temperature: 43F; Dew Point: 37F; Relative Humidity: 79%
Wind: SSW @ 16G22 kts
Sea-level pressure: 1021.1 mb; 30.15 in. Hg: steady, then falling
Visibility: 50 miles, hazy
3-hr Precip:  0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 E100 OVC 50 211/43/37/2016G22/015/ FEW BINOVC SSW-SW
AND DSNT NNE FEW CU DSNT N-NNE HAZY/ 8/27/ 58016

1 P.M.
Weather: Clear, few altocumulus all quadrants
Temperature: 53F; Dew Point: 34F; Relative Humidity: 47%
Wind: SSW @ 23G30 kts, peak wind SSW 35 mph at 12:49 P.M.
Sea-level pressure: 1016.5 mb; 30.02 in. Hg: falling, then more rapidly
Visibility: 60 miles
6-hr Max temp: 54F
6-hr Min temp: 36F
6-hr Precip:  0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 CLR 60 165/53/34/2023G30/002/ FEW AC ALQDS
PK WND 2030/49/ 8/070 58046 10054 20036

————————————————————–

SUMMARY FOR TUESDAY, FEBRUARY 14, 2023

TEMPERATURE (DEGREES F)
MAX…….50   NORMAL…..37
MIN…….34   NORMAL…..19
MEAN……42   NORMAL…..28

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..+14
TOTAL DEPARTURE FOR THE MONTH………………..+64 [+4.4 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………23  DEPARTURE…….-14
TOTAL HEATING UNITS FOR THE MONTH…………..469  DEPARTURE…….-64
TOTAL HEATING UNITS FOR THE SEASON…………3292  DEPARTURE……-644
TOTAL HEATING UNITS LAST SEASON TO DATE…….3609  DEPARTURE……-317

PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
420C, Contacting, Merlin and Richards are all Main Tower.

420C (Official)…………30 NW  @ 10:44 A.M.
VECTOR #1 (1-Sec)……….33 NW  @ 10:46 A.M.
VECTOR #2 (1-Sec)……….35     @ 10:46 A.M.
DAVIS #1……………….31 NNW @ 10:03 A.M.
DAVIS #2 ………………31 NW  @ 10:46 A.M.
RMY #1 (Instantaneous)…..M
RMY #2 (Instantaneous)…..35 NW  @ 10:50 A.M.
MERLIN…………………33 NW
RICHARDS (C5C) (Inst)……33     @ 10:44 A.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………24 NW  @ 10:49 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..21     @ 10:51 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..24     @ 10:48 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………22 NW  @ 10:48 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………23 WNW @ 10:48 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..M
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..23 NW  @ 10:48 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………21     @ 10:44 A.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……10.7 NW [256 total miles] VECTOR #1…………….M
VECTOR #2…………….11.4
DAVIS #1……………..10.3 WNW
DAVIS #2……………..11.1 WNW
RMY #1……………….M
RMY #2……………….11.3 NE
RICHARDS (C5C)………..M

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.14
TOTAL PRECIPITATION FOR THE MONTH…………..0.01 DEPARTURE…..-1.87
TOTAL PRECIPITATION FOR THE YEAR……………6.80 DEPARTURE…..+0.42

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH………………..0.1 DEPARTURE……-9.2
TOTAL SNOWFALL FOR THE SEASON (2022-2023)……15.0 DEPARTURE…..-28.0

————————————————————–

PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 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

2/1   30/18/24/-2/T/T/552/92              17 NW   VEC1 N/A    RMY 20
2/2   38/19/29/+3/0.00/0.0/518/86         25 SW   VEC1 N/A    RMY 29
2/3   28/-11/9/-17/T/T/557/92             56 WNW  VEC1 N/A    RMY 64
2/4   14/-14/0/-26/0.00/0.0/473/78        45 NW   VEC1 N/A    RMY 51
2/5   49/14/32/+5/0.00/0.0/359/59         38 SW   VEC1 N/A    RMY 43
2/6   47/30/39/+12/0.00/0.0/025/04        28 NE   VEC1 N/A    RMY 29
2/7   31/22/27/0/0.01/0.1/461/75          29 SSW  VEC1 N/A    RMY 33
2/8   46/31/39/+12/0.00/0.0/413/67        30 NW   VEC1 N/A    RMY 34
2/9   49/33/41/+14/T/0.0/149/24           31 SSE  VEC1 N/A    RMY 32
2/10  60/31/46/+19/0.00/0.0/603/97        43 W    VEC1 N/A    RMY 51
2/11  43/31/37/+10/0.00/0.0/625/100       41 WNW  VEC1 N/A    RMY 46
2/12  48/28/38/+10/0.00/0.0/339/54        22 SW   VEC1 N/A    RMY 24
2/13  42/33/38/+10/0.00/0.0/069/11        28 NE   VEC1 N/A    RMY 36
2/14  50/34/42/+14/0.00/0.0/…/..        30 NW   VEC1 33     RMY 35

2/15 The low since midnight is 35F, the daily normal low is 19F

DAILY RECORDS

02/03/2023: NEW RECORD MINIMUM TEMPERATURE OF -11F,
THIS BEATS THE OLD RECORD OF -7F SET IN 1955

02/04/2023: NEW RECORD MINIMUM TEMPERATURE OF -14F,
THIS BEATS THE OLD RECORD OF -4F SET IN 1886 AND 1908

02/10/2023: NEW RECORD MAXIMUM TEMPERATURE OF 60F,
THIS BEATS THE OLD RECORD OF 56 SET IN 1909

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

RECORDS FOR FEBRUARY 15
HIGH 60F IN 1954
LOW -18F IN 1943
PRECIP 2.07 INCHES IN 1940
SNOWFALL 14.4 INCHES IN 2015
PEAK GUST 94e MPH WNW IN 1946

RECORDS FOR FEBRUARY 16
HIGH 62F IN 1954
LOW -16F IN 1943
PRECIP 1.91 INCHES IN 1958
SNOWFALL 18.6 INCHES IN 1958
PEAK GUST 78 MPH W IN 1967

TODAY’S REPORT PREPARED BY: Matt Douglas

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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
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