Sunday, January 15, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, JANUARY 15, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0711E
SUNSET: 1637E
OVERCAST WITH SNOW SHOWERS ATOP GREAT BLUE HILL….
Today we observed overcast conditions with very light snow.
Rain totals were 0.04 inches overnight, with an additional
trace falling between 7 A.M. and 1 P.M. Wind is northerly
with an average speed of 15 mph with frequent gusts around
30 mph. The highest gust today was almost 45 mph! Chilly!
A trace of snow was seen throughout the day, and overnight
snowfall amounted to 0.1 inches.
The high so far today is 33F, which is 1 degree below
the normal maximum of 34F. The low since midnight is 28F,
which is 10 degrees above the normal minimum of 18F.
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Today’s Observations:
7 A.M.
Weather: Overcast stratus
Temperature: 31F; Dew Point: 25F; Relative Humidity: 79%
Wind: NNE @ 14G21 kts
Sea-level pressure: 1013.6 mb; 29.93 in. Hg: steady
Visibility: 80 miles
6-hr Max temp: 31F
6-hr Min temp: 28F
24-hr Precip: 0.04 ins.
24-hr Snowfall: 0.1 ins.
Snow Depth: Trace
BHO SA 1155 30 OVC 80 136/31/25/0214G21/993/ NEW SNW PST 24 HRS 0.1 INS/
8/5// 4/000 54000 70004 10031 20028
10 A.M.
Weather: Very light snow, overcast stratus
Temperature: 31F; Dew Point: 22F; Relative Humidity: 69%
Wind: NNE @ 11G22 kts
Sea-level pressure: 1015.2 mb; 29.98 in. Hg: rising unsteadily
Visibility: 85 miles
3-hr Precip: Trace
3-hr Snowfall: Trace
BHO SA 1455 30 OVC 85SW- 152/31/22/0211G22/998/ NEW SNW PST 3 HRS
TRACE PCPN VRY LGT VIRGA ALQDS/ 8/500 52016 6000/
1 P.M.
Weather: Overcast stratus, very light snow
Temperature: 32F; Dew Point: 23F; Relative Humidity: 69%
Wind: NNE @ 17G24 kts
Sea-level pressure: 1014.4 mb; 29.96 in. Hg: falling then
more slowly
Visibility: 85 miles, except 20 miles NE-SE-SSW due to virga
6-hr Max temp: 33F
6-hr Min temp: 29F
6-hr Precip: Trace
6-hr Snowfall: Trace
Snow Depth: 0 ins.
BHO SA 1755 40 OVC 85SW- 144/32/23/0217G24/996/ NEW SNW PST 6 HRS
TRACE PCPN VRY LGT VIRGA PCPN VRY LGT VIRGA NE-SE-SSW VSBY 20 NE-SE-SSW
PK WND 0239/34/ 8/6// 56008 6000/ 10033 20029
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SUMMARY FOR SATURDAY, JANUARY 14, 2023
TEMPERATURE (DEGREES F)
MAX…….36 NORMAL…..35
MIN…….29 NORMAL…..18
MEAN……33 NORMAL…..26
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…….+7
TOTAL DEPARTURE FOR THE MONTH……………….+119 [+8.3 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………32 DEPARTURE…….-7
TOTAL HEATING UNITS FOR THE MONTH…………..396 DEPARTURE……-132
TOTAL HEATING UNITS FOR THE SEASON…………2306 DEPARTURE……-432
TOTAL HEATING UNITS LAST SEASON TO DATE…….2399 DEPARTURE…….-93
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….30 NNE @ 11:52 P.M.
VECTOR #2 (Instantaneous)..MISSING
DAVIS #2 ………………MISSING
RMY #2 (Instantaneous)…..MISSING DUE TO ICING
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………………23 NNE @ 11:52 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..MISSING
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………MISSING
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..MISSING DUE TO ICING
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…….11.6 N [279 total miles]
VECTOR #2……………..MISSING
DAVIS #2………………MISSING
RMY #2………………..MISSING DUE TO ICING
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……..0.04 DEPARTURE…..-0.11
TOTAL PRECIPITATION FOR THE MONTH…………..2.28 DEPARTURE…..+0.17
TOTAL PRECIPITATION FOR THE YEAR……………2.28 DEPARTURE…..+0.17
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.1 DEPARTURE……-0.5
TOTAL SNOWFALL FOR THE MONTH………………..1.4 DEPARTURE……-6.5
TOTAL SNOWFALL FOR THE SEASON (2022-2023)…….4.1 DEPARTURE…..-18.9
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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/…/.. 27 NW VEC1 N/A RMY 27
1/10 41/25/33/6/…./0.0/…/.. 28 NW VEC1 N/A RMY 28
1/11 33/18/26/-1/…./0.1/…/.. 19 N VEC1 N/A RMY 18
1/12 48/28/38/+11/…./0.1/…/.. 45 S VEC1 N/A RMY 46
1/13 55/36/46/+20/…./…/…/.. 54 SSW VEC1 N/A RMY 56
1/14 36/29/33/+7/…./…/…/… 30 NNE VEC1 N/A RMY M
1/15 The low since midnight is 28F, 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 15
HIGH 64F IN 1995
LOW -16F IN 1957 [RECORD LOW FOR MONTH]
PRECIP 2.63 INS. IN 1958
SNOWFALL 8.8 INS. IN 1983
PEAK GUST 69e MPH SE IN 1940
RECORDS FOR JANUARY 16
HIGH 63F IN 1995
LOW -12F IN 2004
PRECIP 1.32 INS. IN 1936
SNOWFALL 14.0 INS. IN 1965
PEAK GUST 79 MPH WNW IN 1960
TODAY’S REPORT PREPARED BY: Benjamin Turner and Matthew Douglas
