Thursday, June 8, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
THURSDAY, JUNE 8, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0408E
SUNSET: 1919E
MAINLY CLOUDY SKIES IS THE THEME TODAY WITH CONTINUED BELOW NORMAL
TEMPERATURES….
Clouds have dominated the sky today with only a few breaks late
this morning and early this afternoon, allowing for a touch of sun.
However, any sun is self destructive thanks to a cool pool of air
aloft in association with an upper level low stuck over the region.
Some showers were around this morning, although none made it here
to the hill. More showers are expected to pop up this afternoon,
so perhaps we can get one to pass over the hill.
Temperatures have remained below average today, with the high so
far close to 10F degrees below the expected value for this date.
The dew point has remained steady in the upper 40s to near 50,
so at least it feels comfortable out there.
The wind has been rather light today, and at times variable. The
average speed for the day so far is only around 5mph. The peak
gust so far has been pitiful at around 13mph!
The high temperature so far today is 64F, this is 9 degrees
below the normal maximum of 73F. The low since midnight is 51F,
this is 4 degrees below the normal minimum of 55F.
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Today’s Observations:
7 A.M.
Weather: Overcast altocumulus/altostratus, few breaks in overcast
distant NE-SE-S, few stratocumulus distant N
Temperature: 53F; Dew Point: 47F; Relative Humidity: 80%
Wind: NNW @ 3 kts, wind light
Sea-level pressure: 1006.4 mb; 29.72 in. Hg: rising, then more rapidly
Visibility: 25 miles, hazy
6-hr Max temp: 53F
6-hr Min temp: 51F
24-hr Precip: 0.00 inches
BHO SA 1155 E85 OVC 25 064/53/47/3403/972/ FEW BINOVC DSNT
NE-SE-S FEW SC DSNT N HAZY WND LGT/ 8/57/ 53018 10053 20051
10 A.M.
Weather: Overcast altostratus, few stratus fractus E-S-SSW, few
cumulus all quadrants, virga distant NE
Temperature: 55F; Dew Point: 50F; Relative Humidity: 81%
Wind: WNW @ 3 kts, wind light and variable
Sea-level pressure: 1007.0 mb; 29.74 in. Hg: rising, then steady
Visibility: 30 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 E55 OVC 30 070/55/50/2903/974/ FEW STFRA E-S-WSW
FEW CU ALQDS VIRGA DSNT NE HAZY WND L/V/ 8/22/ 51006
1 P.M.
Weather: Broken cumulus, broken altoocumulus/altostratus
Temperature: 64F; Dew Point: 49F; Relative Humidity: 58%
Wind: W @ 3 kts, wind light and variable
Sea-level pressure: 1005.9 mb; 29.70 in. Hg: falling, then more rapidly
Visibility: 25 miles, hazy
6-hr Max temp: 64F
6-hr Min temp: 53F
6-hr Precip: 0.00 inches
BHO SA 1755 E40 BKN 100 BKN 25 059/64/49/2803/970/ HAZY WND L/V/
8/270 58011 10064 20053
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SUMMARY FOR WEDNESDAY, JUNE 7, 2023
TEMPERATURE (DEGREES F)
MAX…….65 NORMAL…..73
MIN…….50 NORMAL…..55
MEAN……58 NORMAL…..64
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………-6
TOTAL DEPARTURE FOR THE MONTH………………..-27 [-4.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….7 DEPARTURE……..+3
TOTAL HEATING UNITS FOR THE MONTH……………57 DEPARTURE…….+28
TOTAL HEATING UNITS FOR THE SEASON…………5253 DEPARTURE……-921
TOTAL HEATING UNITS LAST SEASON TO DATE…….5589 DEPARTURE……-336
COOLING DEGREE DAYS (SEASON: JAN 2023 THRU DEC 2023)
TOTAL COOLING UNITS FOR YESTERDAY…………….0 DEPARTURE……..-2
TOTAL COOLING UNITS FOR THE MONTH……………14 DEPARTURE………0
TOTAL COOLING UNITS FOR THE SEASON…………..45 DEPARTURE……..+3
TOTAL COOLING UNITS LAST SEASON TO DATE………68 DEPARTURE…….-23
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)……….E28 NW @ 09:13 A.M.
VECTOR #1 (1-Sec)……….29 NW @ 09:13 A.M.
VECTOR #2 (1-Sec)……….30 NW @ 10:21 A.M.
DAVIS #1……………….28 WNW @ 09:13 A.M.
DAVIS #2 ………………28 NW @ 10:21 A.M.
RMY #1 (Instantaneous)…..29 NW @ 10:21 A.M.
RMY #2 (Instantaneous)…..30 NW @ 10:21 A.M.
MERLIN…………………27 WNW
RICHARDS (C5C) (Inst)……28 @ 10:21 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………19 WNW @ 08:19 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..19 @ 09:30 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..20 @ 10:23 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………19 NW @ 09:37 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………20 NW @ 10:23 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..18 NW @ 09:37 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..20 NW @ 10:23 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………19 @ 09:31 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……….10.3 NW [248 total miles]
VECTOR #1………………..10.2
VECTOR #2………………..11.6
DAVIS #1…………………10.5 WNW
DAVIS #2…………………11.4 NW
RMY #1………………….. 9.8 WNW
RMY #2…………………..11.3 NW
RICHARDS (C5C)……………10.7
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.17
TOTAL PRECIPITATION FOR THE MONTH…………..0.94 DEPARTURE…..-0.19
TOTAL PRECIPITATION FOR THE YEAR…………..21.69 DEPARTURE…..-2.04
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PRELIMINARY CLIMATE SUMMARY FOR JUNE CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/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
6/1 88/56/72/+10/0.00/859/95 21 WSW VEC1 21 WSW RMY 21
6/2 91/53/72/+10/0.53/634/70 37 ENE VEC1 39 ENE RMY 37 TSTM
6/3 53/43/48/-14/0.16/000/00 36 NE VEC1 38 NE RMY 36
6/4 52/43/48/-15/0.17/009/01 30 N VEC1 32 N RMY 29
6/5 58/47/53/-10/0.08/027/03 22 N VEC1 24 N RMY 23
6/6 72/50/61/-2/T/…/.. 31 NNW VEC1 31 NNW RMY 26 TSTM
6/7 65/50/58/-6/0.00/…/.. 28 NW VEC1 29 NW RMY 29
6/8 The low since midnight is 51F, the daily normal low is 55F
DAILY RECORDS
06/02/2023: TIED RECORD HIGH MAXIMUM TEMPERATURE OF 91F,
ALSO SET IN 1895
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR JUNE 8
HIGH 94F IN 1984
LOW 37F IN 1932
PRECIP 1.11 INS IN 1923
PEAK GUST 86e MPH WNW IN 1946 [Record for month]
RECORDS FOR JUNE 9
HIGH 94F IN 2008
LOW 40F IN 1980
PRECIP 2.08 INCHES IN 1931
PEAK GUST 67 MPH NW IN 1973
TODAY’S REPORT PREPARED BY: Matt Douglas
