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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
FRIDAY, FEBRUARY 10, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0649E
SUNSET: 1710E
RECORD BREAKING HIGH TEMPERATURE TODAY….
The temperature has reached a record breaking high of 60F
by 1:00 P.M. This temperature breaks the previous record
of 56F set back in 1909. With a mid-morning wind shift from
WSW-WNW temperatures have already begun to slowly decrease. If they
decrease slow enough overnight we have the potential to also
beat the high minimum record of 40F. The low so far today is 50F.
The wind picked up just before 9:00 A.M. and it has been a
gusty day on the hill with multiple gusts over 30 kts (35 MPH)
and a peak gust so far of 35 kts (40 MPH) at 12:24 P.M.
Humidity drastically dropped today from 85% to 47% increasing
Visibility from 30 miles with a thin fog layer at 7:00 A.M.
to 75 miles by the 1:00 P.M. observation.
The high so far today is 60F degrees, which is 24 degrees
above the normal maximum of 36F. The low since midnight is
50F degrees, which is 18 degrees above the normal minimum
of 32F.
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Today’s Observations:
7 A.M.
Weather: Clear, few distant cumulus E-S, few cirrus NE-S
Temperature: 51F; Dew Point: 46F; Relative Humidity: 85%
Wind: WSW @ 14G19 kts
Sea-level pressure: 1005.5 mb; 29.69 in. Hg: rising, then steady
Visibility: 30 miles
6-hr Max temp: 52F
6-hr Min temp: 50F
24-hr Precip: Trace
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 CLR 30 055/51/46/2314G19/969/ FEW DSNT CU E-S FEW CI NE-S
THN FG ALQDS/ 8/101 51003 70000 10052 20050
10 A.M.
Weather: Broken cumulus, thin broken cirrus
Temperature: 58F; Dew Point: 47F; Relative Humidity: 67%
Wind: W @ 20G32 kts; Peak Wind: 34 kts (39 MPH) at 09:52 A.M.
Sea-level pressure: 1005.9 mb; 29.70 in. Hg: steady, then rising
Visibility: 60 miles and 40 miles WSW-N
3-hr Precip: 0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 40 BKN 250 -BKN 60 059/58/47/2820G34/970/ VSBY 40 WSW-N
PK WND 2834/52/ 8/101 53004
1 P.M.
Weather: Scattered Cumulus, thin scattered cirrus
Temperature: 57F; Dew Point: 36F; Relative Humidity: 47%
Wind: WNW @ 21G32 kts; Peak Wind: 35 kts (40 MPH) at 12:24 P.M.
Sea-level pressure: 1006.1 mb; 29.71 in. Hg: rising unsteadily
Visibility: 75 miles
6-hr Max temp: 60F
6-hr Min temp: 50F
6-hr Precip: 0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 40 SCT 250 -SCT 75 061/57/36/2921G32/971/ PK WND 2835/24/
8/101 52002 10060 20050
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SUMMARY FOR THURSDAY, FEBRUARY 9, 2023
TEMPERATURE (DEGREES F)
MAX…….49 NORMAL…..36
MIN…….33 NORMAL…..18
MEAN……41 NORMAL…..27
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..+14
TOTAL DEPARTURE FOR THE MONTH…………………+1 [-0.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………24 DEPARTURE…….-14
TOTAL HEATING UNITS FOR THE MONTH…………..345 DEPARTURE……..-1
TOTAL HEATING UNITS FOR THE SEASON…………3168 DEPARTURE……-581
TOTAL HEATING UNITS LAST SEASON TO DATE…….3457 DEPARTURE……-289
PEAK WIND GUST (MPH):
420C (Official)…………31 SSE @ 8:18 P.M.
VECTOR #2 (1-Sec)……….32 @ 10:34 P.M.
DAVIS #1……………….N/A
DAVIS #2 ………………35 S @ 8:16 P.M.
RMY #2 (Instantaneous)…..32 SSW @ 10:34 P.M.
MERLIN…………………31 S
VECTOR #1……OUT OF SERVICE D/T RENOVATIONS
RMY #1………OUT OF SERVICE D/T RENOVATIONS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………23 SSW @ 10:37 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..24 @ 10:37 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………N/A
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………25 S @ 10:54 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..25 SSW @ 10:38 P.M.
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……10.8 S [259 total miles]
VECTOR #2…………….11.5
DAVIS #1……………..N/A
DAVIS #2……………..11.4 SSW
RMY #2……………….11.6 SSW
RMY #1……….OUT OF SERVICE D/T RENOVATIONS
VECTOR #1…….OUT OF SERVICE D/T RENOVATIONS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE MONTH…………..0.01 DEPARTURE…..-1.20
TOTAL PRECIPITATION FOR THE YEAR……………6.80 DEPARTURE…..+1.09
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……-6.0
TOTAL SNOWFALL FOR THE SEASON (2022-2023)……15.0 DEPARTURE…..-24.8
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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/…/.. 30 NW VEC1 N/A RMY 34
2/9 49/33/41/+14/…./0.0/…/.. 31 SSE VEC1 N/A RMY 32
2/10 The low since midnight is 50F, the daily normal low is 18F
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
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR FEBRUARY 10
HIGH 56F IN 1909
LOW -8F IN 1899
PRECIP 1.34 INS. IN 1909
SNOWFALL 12.1 INS. IN 1926
PEAK GUST 64 MPH W IN 2001
RECORDS FOR FEBRUARY 11
HIGH 60F IN 1981
LOW -10F IN 1899
PRECIP 1.07 INCHES IN 1955
SNOWFALL 9.6 INCHES IN 1933
PEAK GUST 95 MPH S IN 1981
TODAY’S REPORT PREPARED BY: Kaitlin Geagan
