Tuesday, June 6, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, JUNE 6, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0408E
SUNSET: 1918E
CANADIAN WILDFIRE SMOKE REDUCING VISIBILITY AND IMPACTING AIR
QUALITY ACROSS THE REGION….
Some clouds early this morning, partially hidden by the abundant
smoke, dissipated leaving us with clear, but very smoky skies.
As a matter of fact, the smoke is thick enough that the
visibility has been reduced to under 10 miles. Also the sun
has been greatly filtered, only dimly visible, as if there is
a layer of cirrostratus above.
Despite the filtered nature of the sunshine, temperatures have
been able to warm into the low to mid 70s this afternoon. All
in all, it feels pretty nice out there today.
The wind has been generally out of a northwest to west-
northwesterly direction today with an average speed for the day
around 9mph. The peak gust so far has only been around 20mph.
The high temperature so far today is xxF, this is x degrees
below the normal maximum of 72F. The low since midnight is 50F,
this is 5 degrees below the normal minimum of 55F.
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Today’s Observations:
7 A.M.
Weather: Clear, thin smoke all quadrants, smoke layer aloft all
quadrants
Temperature: 57F; Dew Point: 48F; Relative Humidity: 72%
Wind: WNW @ 9 kts
Sea-level pressure: 1004.1 mb; 29.65 in. Hg: falling, then more slowly
Visibility: 10 miles, hazy
6-hr Max temp: 57F
6-hr Min temp: 50F
24-hr Precip: 0.04 inches
BHO SA 1155 CLR 10 041/57/48/3009/965/ THN K ALQDS K LYR ALF ALQDS
HAZY/ 8/000 56011 70004 10057 20050
10 A.M.
Weather: Clear, thin smoke all quadrants, smoke layer aloft all
quadrants
Temperature: 65F; Dew Point: 49F; Relative Humidity: 56%
Wind: NW @ 9 kts
Sea-level pressure: 1002.4 mb; 29.60 in. Hg: falling, then more slowly
Visibility: 8 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 CLR 8 024/65/49/3209/960/ THN K ALQDS K LYR ALF ALQDS
HAZY/ 8/000 56017
1 P.M.
Weather: Scattered cumulus, thin smoke all quadrants, smoke layer
aloft all quadrants
Temperature: 71F; Dew Point: 50F; Relative Humidity: 47%
Wind: NW @ 10G17 kts
Sea-level pressure: 1000.5 mb; 29.55 in. Hg: falling, then more rapidly
Visibility: 8 miles, hazy
6-hr Max temp: 72F
6-hr Min temp: 57F
6-hr Precip: 0.00 inches
BHO SA 1755 30 SCT 8 005/71/50/3110G17/955/ THN K ALQDS K LYR ALF ALQDS
HAZY/ 8/200 58019 10072 20057
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SUMMARY FOR MONDAY, JUNE 5, 2023
TEMPERATURE (DEGREES F)
MAX…….58 NORMAL…..72
MIN…….47 NORMAL…..54
MEAN……53 NORMAL…..63
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..-10
TOTAL DEPARTURE FOR THE MONTH………………..-19 [-4.0 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………12 DEPARTURE……..+8
TOTAL HEATING UNITS FOR THE MONTH……………46 DEPARTURE…….+24
TOTAL HEATING UNITS FOR THE SEASON…………5242 DEPARTURE……-925
TOTAL HEATING UNITS LAST SEASON TO DATE…….5589 DEPARTURE……-347
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……..+4
TOTAL COOLING UNITS FOR THE SEASON…………..45 DEPARTURE……..+8
TOTAL COOLING UNITS LAST SEASON TO DATE………60 DEPARTURE…….-15
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)……….E22 N @ 12:13 P.M.
VECTOR #1 (1-Sec)……….24 N @ 12:13 P.M.
VECTOR #2 (1-Sec)……….23 N @ 02:00 A.M.
DAVIS #1……………….21 N @ 02:00 A.M.
DAVIS #2 ………………20 N @ 01:40 A.M.
RMY #1 (Instantaneous)…..23 N @ 02:02 A.M.
RMY #2 (Instantaneous)…..22 N @ 01:40 A.M.
MERLIN…………………21 N
RICHARDS (C5C) (Inst)……22 @ 02:00 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………15 N @ 01:51 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..15 @ 12:14 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..15 @ 01:42 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………15 N @ 01:40 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………14 N @ 01:42 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..15 N @ 01:40 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..14 N @ 01:42 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………15 @ 01:40 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………7.8 N [188 total miles]
VECTOR #1……………….8.0
VECTOR #2……………….8.1
DAVIS #1………………..7.8 N
DAVIS #2………………..7.8 N
RMY #1………………….7.8 NNW
RMY #2………………….8.0 N
RICHARDS (C5C)…………..8.5
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.04 DEPARTURE…..-0.12
TOTAL PRECIPITATION FOR THE MONTH…………..0.94 DEPARTURE…..+0.14
TOTAL PRECIPITATION FOR THE YEAR…………..21.69 DEPARTURE…..-1.71
————————————————————–
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/…/.. 22 N VEC1 24 N RMY 23
6/6 The low since midnight is 50F, 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 6
HIGH 95F IN 1925
LOW 42F IN 1885, 1894, 1945
PRECIP 3.61 INS IN 2000
PEAK GUST 58 MPH NE IN 2000
RECORDS FOR JUNE 7
HIGH 93F IN 1999
LOW 40F IN 1932
PRECIP 4.01 INS IN 2006
PEAK GUST 58 MPH NE IN 1982
TODAY’S REPORT PREPARED BY: Matt Douglas
