Saturday, January 27, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SATURDAY, JANUARY 27, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0703E
SUNSET: 1651E
DREARY DAY FEATURING CLOUDY SKIES AND SOME MORNING DRIZZLE….
We began the morning in the clouds, with foggy conditions accompanied by
light drizzle. Though the overcast remains, the cloud base has lifted
some, improving our visibility. Despite this, the cold temperatures along
with the lack of wind and sunshine contribute to the gloomy, dreary feel
outside today.
Given the current conditions, it is probably no surprise that the
temperature has barely changed all day, remaining in the mid 30s.
The dew point has done the same.
Winds have been on the light side, especially since 9am. Our average so
far is only 7mph, primarily out of the north-northeast. The peak gust to
this point is about 20mph, occurring not long after midnight.
Visibility was limited to 1/8 mile at the 7am observation due to the
low cloud deck and fog, but had improved to 30 miles by early afternoon.
The maximum temperature so far today is 35F degrees, this is
1 degree above the normal high of 34F. The minimum temperature
so far since midnight is 33F degrees, this is 16 degrees above
the normal low of 17F.
————————————————————–
Today’s Observations:
7 A.M.
Weather: Sky obscured, vertical visibility 200ft, light drizzle
Temperature: 33F; Dew Point: 33F; Relative Humidity: 100%
Wind: NNE @ 7 kts
Sea-level pressure: 1022.3 mb; 30.19 in. Hg: rising, then more rapidly
Visibility: 1/8 mile, fog
6-hr Max temp: 35F
6-hr Min temp: 33F
24-hr Precip: 0.41 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0.0 inches
BHO SA 1155 X W2 1/8L-F 223/33/33/0207/019/ 8//// 53016 70041
10035 20033
10 A.M.
Weather: Overcast stratus, few lower stratus fractus all quadrants
Temperature: 33F; Dew Point: 33F; Relative Humidity: 100%
Wind: N @ 4 kts, wind light
Sea-level pressure: 1024.3 mb; 30.25 in. Hg: rising, then falling
Visibility: 10 miles, thin fog all quadrants
3-hr Precip: 0.01 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E3 OVC 10 243/33/33/3504/025/ FEW LWR STRFA ALQDS
THN F ALQDS WND LGT/ 8/6// 50020 6001/
1 P.M.
Weather: Overcast stratus, virga NE-ESE
Temperature: 34F; Dew Point: 34F; Relative Humidity: 100%
Wind: NNE @ 3 kts, wind light
Sea-level pressure: 1023.6 mb; 30.23 in. Hg: falling, then more rapidly
Visibility: 30 miles, thin fog
6-hr Max temp: 35F
6-hr Min temp: 33F
6-hr Precip: 0.01 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 E10 OVC 30 236/34/34/0303/023/ VIRGA NE-ESE
THN F ALQDS WND LGT/ 8/6// 58007 6001/ 10035 20033
————————————————————–
SUMMARY FOR FRIDAY, JANUARY 26, 2024
TEMPERATURE (DEGREES F)
MAX…….40 NORMAL…..34
MIN…….35 NORMAL…..17
MEAN……38 NORMAL…..26
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………..+12
TOTAL DEPARTURE FOR THE MONTH…………………..+96 [+3.5 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………27 DEPARTURE…….-12
TOTAL HEATING UNITS FOR THE MONTH…………..899 DEPARTURE…….-99
TOTAL HEATING UNITS FOR THE SEASON…………2794 DEPARTURE……-414
TOTAL HEATING UNITS LAST SEASON TO DATE…….2686 DEPARTURE……+108
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all Main Tower.
E=Estimated
F420C (Official)……….E23 ESE @ 06:17 A.M.
VECTOR #1 (1-Sec)……….23 ESE @ 06:17 A.M.
VECTOR #2 (1-Sec)……….23 ENE @ 10:24 A.M.
DAVIS #1……………….22 E @ 12:14 A.M.
DAVIS #2 ………………22 E @ 10:30 A.M.
RMY #1 (Instantaneous)…..23 E @ 12:27 A.M.
RMY #2 (Instantaneous)…..23 ENE @ 10:24 A.M.
MERLIN…………………21 ENE
RICHARDS (C5C) (Inst)……21 @ 11:05 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………16 E @ 12:16 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..16 @ 06:42 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17 @ 12:28 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………18 E @ 12:15 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………17 E @ 12:28 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..17 E @ 12:15 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 E @ 12:28 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………17 @ 12:15 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….8.5 E [204 total miles]
VECTOR #1……………..8.5
VECTOR #2……………..9.0
DAVIS #1………………9.1 ENE
DAVIS #2………………8.9 E
RMY #1………………..8.8 ENE
RMY #2………………..8.9 ENE
RICHARDS (C5C)…………9.3
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.41 DEPARTURE…..+0.27
TOTAL PRECIPITATION FOR THE MONTH…………..8.34 DEPARTURE…..+4.53
TOTAL PRECIPITATION FOR THE YEAR (2024)……..8.34 DEPARTURE…..+4.53
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.7
TOTAL SNOWFALL FOR THE MONTH……………….18.7 DEPARTURE……+3.5
TOTAL SNOWFALL FOR THE SEASON (2023-2024)……19.0 DEPARTURE…..-11.3
————————————————————–
PRELIMINARY CLIMATE SUMMARY FOR JANUARY 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
1/1 37/25/31/+2/0.00/0.0/296/54 15 N VEC1 14 N RMY 15
1/2 39/19/29/+1/0.00/0.0/550/100 17 WNW VEC1 17 WNW RMY 17
1/3 42/25/34/+6/0.00/0.0/347/63 20 WNW VEC1 21 WNW RMY 21
1/4 42/21/32/+4/T/T/237/43 37 NNW VEC1 36 NNW RMY 39
1/5 32/17/25/-3/0.00/0.0/542/98 40 NW VEC1 39 NW RMY 39
1/6 34/24/29/+1/0.11/0.2/022/04 36 E VEC1 36 E RMY 36
1/7 33/21/27/0/0.84/13.0/000/00 38 ENE VEC1 37 ENE RMY 42
1/8 32/21/27/0/0.00/0.0/406/73 28 NW VEC1 28 NW RMY 31
1/9 40/23/32/+5/0.98/T/000/00 46 SE VEC1 49 SE RMY 46
1/10 53/41/47/+20/1.90/0.0/201/36 70 SSE VEC1 69 SSE RMY 75
1/11 43/35/39/+12/0.00/0.0/162/29 45 WNW VEC1 43 WNW RMY 47
1/12 47/33/40/+13/0.00/0.0/533/95 29 SE VEC1 28 ESE RMY 28
1/13 57/36/47/+21/1.72/0.0/146/26 47 ESE VEC1 51 ESE RMY 49
1/14 39/22/31/+5/0.02/0.4/328/58 53 WNW VEC1 52 WNW RMY 54
1/15 31/17/24/-2/T/T/475/84 30 WNW VEC1 29 WNW RMY 30
1/16 34/19/27/+1/0.61/3.2/000/00 36 NW VEC1 33 NW* RMY 31*
1/17 25/13/19/-7/0.00/0.0/529/93 29 NW VEC1 28 W* RMY 27*
1/18 26/13/20/-6/0.00/0.0/069/12 30 WSW VEC1 30 WSW RMY 29
1/19 27/16/22/-4/T/T/000/00 31 NW VEC1 30 NW RMY 34
1/20 20/10/15/-11/0.05/0.7/172/30 30 NW VEC1 30 NW RMY 31
1/21 25/10/18/-8/0.00/0.0/513/89 30 NW VEC1 31 NW RMY 32
1/22 37/13/25/-1/0.00/0.0/416/72 35 SW VEC1 35 SW RMY 36
1/23 38/30/34/+8/0.07/0.5/006/01 30 WSW VEC1 30 WSW RMY 31
1/24 39/29/34/+8/0.40/0.7/000/00 26 S VEC1 26 S RMY 26
1/25 50/39/45/+19/…/0.0/…/.. 35 SW VEC1 34 SSW RMY 36
1/26 40/35/38/+12/…/0.0/…/.. 23 ESE VEC1 23 ESE RMY 23
1/27 The low since midnight is 33F, the daily normal low is 17F
* Reading impacted by icing
————————————————————–
JANUARY DAILY RECORDS TO DATE
1/13: RECORD PRECIPITATION OF 1.72 INS,
BEATS PREVIOUS RECORD OF 1.54 INS SET IN 1979
————————————————————–
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR JANUARY 27
HIGH 63F IN 1974
LOW -12F IN 1924
PRECIP 1.94 INS. IN 2015
SNOWFALL 25.2 INS. IN 2015 [RECORD FOR MONTH]
PEAK GUST 91 MPH SSE IN 1996
RECORDS FOR JANUARY 28
HIGH 59F IN 1916
LOW -9F IN 1888, 1924
PRECIP 2.18 INS. IN 1897
SNOWFALL 15.0 INS. IN 1897
PEAK GUST 78e MPH SSE IN 1977
TODAY’S REPORT PREPARED BY: Joshua Polen
