Wednesday, June 2, 2021
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
WEDNESDAY JUNE 2, 2021
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0409E
SUNSET: 1915E
WARM WITH A MIX OF SUN AND CLOUDS….
We’re experiencing another warm day today with a mix of sun
and clouds. Not really much weather to talk about today.
Once again today there has been little wind to speak of. The
average speed since 7 A.M. is only around 4 mph. We even had
a period this morning where winds were calm! The peak gust so
far is only 14 mph!!
Visibility hasn’t been great today, generally hanging out
between 35-40 miles due to haziness.
The high so far today is 79F, which is 8 degrees above the
normal high of 71F. The low since midnight is 55F, which is
2 degrees above the daily normal low of 53F.
Today’s Observations:
7 A.M.
Weather: Thin broken cirrus, thin smoke layer along
horizon all quadrants
Temperature: 61F; Dew Point: 51F; Relative Humidity: 69%
Wind: WSW @ 5 kts, wind light
Sea-level pressure: 30.24 in. Hg; steady, then rising
Visibility: 40 mile
6-hr Max temp: 61F
6-hr Min temp: 55F
24-hr Precip: 0.00 ins.
BHO SA 1155 E250 -BKN 40 241/61/51/2405/024/ THN K LYR ALNG
HRZN ALQDS WND LGT/ 8/001 53005 10061 20055
10 A.M.
Weather: Thin broken cirrus, few cumulus all quadrants
Temperature: 74F; Dew Point: 47F; Relative Humidity: 38%
Wind: SW @ 3 kts, wind light
Sea-level pressure: 30.25 in Hg; rising, then more slowly
Visibility: 40 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 E250 -BKN 40 245/74/47/2303/025/ FEW CU ALQDS
WND LGT/ 8/201 51004
1 P.M.
Weather: Broken cumulus, broken cirrus
Temperature: 77F, Dew point: 51F; Relative Humidity: 40%
Wind: S @ 5 kts, wind light
Sea-level pressure: 30.21 in Hg; falling, then more rapidly
Visibility: 35 miles, hazy
6-hr Max temp: 79F
6-hr Min temp: 61F
6-hr Precip: 0.00 ins.
BHO SA 1755 E55 BKN 250 BKN 35 230/77/51/1905/021/ HAZY
WND LGT/ 8/202 58015 10079 20061
SUMMARY FOR TUESDAY, JUNE 1, 2021
TEMPERATURE (DEGREES F)
MAX…….74 NORMAL…..71
MIN…….50 NORMAL…..53
MEAN……62 NORMAL…..62
DEPARTURE FROM 30-YEAR (1981-2010) NORMAL……..0
TOTAL DEPARTURE FOR THE MONTH………………..0 [0.0 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL THRU JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………… 3 DEPARTURE…… -2
TOTAL HEATING UNITS FOR THE MONTH…………… 3 DEPARTURE…… -2
TOTAL HEATING UNITS FOR THE SEASON…………5581 DEPARTURE…..-727
TOTAL HEATING UNITS LAST SEASON TO DATE…….5824 DEPARTURE…..-243
COOLING DEGREE DAYS (SEASON JAN THRU DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………… 0 DEPARTURE…….-2
TOTAL COOLING UNITS FOR THE MONTH…………… 0 DEPARTURE…….-2
TOTAL COOLING UNITS FOR THE SEASON…………..29 DEPARTURE…….+3
TOTAL COOLING UNITS LAST SEASON TO DATE………32 DEPARTURE…….-3
PEAK WIND GUST (MPH):
420C/Official…………..20 WSW @ 2:30 A.M.
AEROVANE (south tower)…..24 WSW @ 2:45 P.M.
ASOS…………………..20 SSW @ 10:25 P.M.
DAVIS #1……………….21 WSW @ 1:46 A.M.
DAVIS #2 (south tower)…..23 W @ 2:28 A.M.
RMY……………………22 @ 1:45 A.M.
VECTOR…………………23 @ 7:38 P.M.
MERLIN…………………N/A
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………17 WSW @ 2:07 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….16 SW @ 10:02 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………17 W @ 2:29 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………18 W @ 2:17 A.M.
MAXIMUM 2-MINUTE RMY AVERAGE………………..16 W @ 2:28 A.M.
MAXIMUM 2-MINUTE VECTOR AVERAGE……………..16 @ 2:27 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….10.9 WSW [261 total miles] ASOS………………….11.0
DAVIS #1………………11.2 WSW
DAVIS #2………………11.3 WSW
RMY…………………..10.7 WSW
VECTOR………………..10.9
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…….0.00 DEPARTURE….-0.16
ASOS………….0.00
TOTAL PRECIPITATION FOR THE MONTH………….0.00 DEPARTURE….-0.33
ASOS………….0.00
TOTAL PRECIPITATION FOR THE YEAR………….20.66 DEPARTURE….-2.33
ASOS………..20.86
PRELIMINARY CLIMATE SUMMARY FOR MAY CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST
AERO: Aerovane wind recording system gust
RMY: R.M. Young wind gust recording system
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M: Missing data
05/01 62/38/50/-3/0.06/0.0/659/78 31 WNW AERO 35 WNW RMY 40
05/02 76/48/62/+9/0.01/0.0/220/26 41 SW AERO 41 SW RMY 46
05/03 67/48/58/+5/0.07/0.0/400/47 21 E AERO 20 E RMY 20
05/04 50/44/47/-7/0.78/0.0/000/00 36 NNE AERO 32 NNE RMY 37
05/05 48/44/46/-8/0.47/0.0/000/00 18 ESE AERO 14 ESE RMY 17
05/06 64/45/55/+1/0.00/0.0/780/91 33 NW AERO 38 NNW RMY 39
05/07 61/43/52/-3/0.00/0.0/516/60 28 ESE AERO 22 ESE RMY 26
05/08 54/40/47/-8/0.00/0.0/069/08 24 SSW AERO 23 SSW RMY 25
05/09 66/42/54/-1/T/0.0/579/67 30 SW AERO 29 SW RMY 34
05/10 60/45/53/-2/0.39/0.0/078/09 21 W AERO 20 W RMY 20
05/11 63/45/54/-2/0.00/0.0/764/88 38 WNW AERO 41 WNW RMY 41
05/12 65/41/53/-3/0.00/0.0/722/83 28 NW AERO M M RMY 31
05/13 69/45/57/+1/0.00/0.0/759/87 22 WNW AERO 21 WNW RMY 21
05/14 76/49/63/+8/0.00/0.0/725/83 23 WNW AERO 23 WNW RMY 25
05/15 75/55/65/+8/0.01/0.0/569/65 24 SSE AERO 26 SSE RMY 26
05/16 78/54/66/+9/0.01/0.0/483/55 36 W AERO 37 W RMY 42
05/17 77/52/65/+8/0.00/0.0/722/82 20 SSW AERO 21 SSW RMY 21
05/18 81/54/68/+10/T/0.0/600/68 32 W AERO 30 W RMY 32
05/19 75/55/65/+7/0.00/0.0/778/88 25 NE AERO 23 NNE RMY 27
05/20 75/52/64/+6/0.00/0.0/842/95 18 ESE AERO 18 ESE RMY 19
05/21 78/50/64/+5/T/0.0/524/59 23 S AERO 22 S RMY 26
05/22 87/56/72/+13/T/0.0/285/32 25 WNW AERO 21 WNW RMY 24
05/23 87/58/73/+14/T/0.0/687/77 38 NNW AERO 37 NNW RMY 40
05/24 70/49/60/+1/0.00/0.0/…/.. 30 S AERO 35 S RMY 33
05/25 75/47/61/+1/0.00/0.0/…/.. 31 SW AERO 35 SW RMY 34
05/26 86/57/72/+12/0.21/0.0/…/.. 30 S AERO 36 S RMY 35 TSTM
05/27 79/57/68/+8/0.02/0.0/…/.. 25 N AERO 25 WNW RMY 27
05/28 58/43/51/-10/1.00/0.0/…/.. 28 ENE AERO 32 ENE RMY 27
05/29 46/42/44/-17/1.50/0.0/…/.. 44 ENE AERO 47 ENE RMY 50
05/30 46/45/46/-15/0.87/0.0/…/.. 37 NE AERO 40 NE RMY 40
05/31 57/46/52/-9/0.20/0.0/…/.. 22 NNE AERO 25 WNW RMY 25
RECORDS FOR THE MONTH:
Low maximum on the 30th of 46F, beating the old record of
51F set in 1996
PRELIMINARY CLIMATE SUMMARY FOR JUNE CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST
AERO: Aerovane wind recording system gust
RMY: R.M. Young wind gust recording system
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M: Missing data
06/01 74/50/62/0/0.00/…/.. 20 WSW AERO 24 WSW RMY 22
06/02 The low since midnight is 55F, the daily normal low is 53F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR JUNE 2
HIGH 91F IN 1895
LOW 41F IN 1907, 1929
PRECIP 2.36 INS IN 1982
SNOWFALL TRACE IN 1907 (ICE PELLETS)
PEAK GUST 63 MPH NW IN 2000
RECORDS FOR JUNE 3
HIGH 98F IN 1919
LOW 38F IN 1929
PRECIP 2.40 INS 2006
PEAK GUST 47 MPH NW IN 1998
TODAY’S REPORT PREPARED BY: Matt Douglas
