Wednesday, June 24, 2020

| June 24, 2020 | Reply

BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

WEDNESDAY, JUNE 24, 2020
ALL TIMES ARE IN EASTERN STANDARD TIME

MUGGY CONDITIONS WITH PASSING SHOWERS…

Overcast condition continued through
the early afternoon hours along with
low visibility of  15 miles. Muggy
conditions with dew points temperatures
staying in the 70s throughout the
day. A few passing showers in the
late afternoon hours along with a
rumble of thunder.  The high so far
today is 83 degrees, this is 6 degrees
above the daily normal high of 77F.
The low since midnight is 66F, which
is 7 degrees above the daily normal
low of 59F.

Today’s Observations:

7 A.M.
Weather: Overcast stratus,
Temperature: 70F; Dew Point: 70F; Relative Humidity: 100%
Wind: SSE at 12G16 kts
Sea-level pressure: 29.71 ins. Hg: rising, then falling
Visibility: 15 miles, distant fog
6-hr Max temp: 66F
6-hr Min temp: 70F
24-hr Precip: Trace
24-hr Frozen:   0.0 ins.
BHO SA 1155 E8 OVC 15 064/70/70/1612G16/971/ DSNT FG ALQDS/
8/6// 50002 10070 20066

10 A.M.
Weather: Overcast stratus
few towering cumulus distant W-NW
Temperature: 77F; Dew Point: 73F; Relative Humidity: 84%
Wind: S at 9 kts,
Sea-level pressure: 29.72 ins. Hg: rising, then falling
Visibility: 25 miles
3-hr Precip:  0.00 ins.
3-hr Frozen:   0.0 ins.
BHO SA 1455 E14 OVC 25 067/77/73/1909/972/ 8/6// 50003

1 P.M.
Weather: Broken stratus, Scattered Altocumulus
Temperature: 82F; Dew Point: 71F; Relative Humidity: 69%
Wind: S at 15G20 kts
Sea-level pressure: 29.70 ins. Hg: falling, then more rapidly
Visibility: 30 miles
6-hr Max temp: 83F
6-hr Min temp: 70F
6-hr Precip:  0.00 ins.
6-hr Frozen:   0.0 ins.
BHO SA 1755 E48 BKN 70 BKN 30 060/82/71/1815G20/970/
VSBY 10 N-NW/ 8/670 58007 10083 20070

SUMMARY FOR TUESDAY, JUNE 23, 2020

TEMPERATURE (DEGREES F)
MAX…..85   NORMAL…..77
MIN…..65   NORMAL…..59
MEAN….75   NORMAL…..68

DEPARTURE FROM 30-YEAR NORMAL…………….. +7
TOTAL DEPARTURE FOR THE MONTH……………..+63 [+2.7 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………….0  DEPARTURE……. 0
TOTAL HEATING UNITS FOR THE MONTH……………40  DEPARTURE…….-27
TOTAL HEATING UNITS FOR THE SEASON…………5852  DEPARTURE……-518
TOTAL HEATING UNITS LAST SEASON TO DATE…….6254  DEPARTURE……-402

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………10  DEPARTURE……. +4
TOTAL COOLING UNITS FOR THE MONTH…………..106  DEPARTURE…….+38
TOTAL COOLING UNITS FOR THE SEASON………….138  DEPARTURE…….+46
TOTAL COOLING UNITS LAST SEASON TO DATE………48  DEPARTURE…….+90

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………..27 S   AT 1:44 P.M.
AERO…………………….24 S   AT  3:15 P.M.
ASOS…………………….27 S   AT  2:21 P.M.
DAVIS……………………28 S  AT  2:33 P.M. RMY26
FASTEST MILE FOR YESTERDAY………………….20 S   AT  5:16 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….20 S   AT  5:20 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………19 S   AT  5:19 P.M.
AVERAGE WIND SPEED AND DIRECTION……………10.4 S
ASOS………………….. 11.4
DAVIS…………………. 9.9 S [190 deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…Trace  DEPARTURE……-0.11
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….2.74  DEPARTURE……-0.76
ASOS…………..2.74
TOTAL PRECIPITATION FOR THE YEAR……….22.53  DEPARTURE……-3.63
ASOS………….23.05

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  64/42/53/-9/T/0.0/…/..            28 WNW  AERO 29 WNW RMY 28
06/02  72/45/59/-3/…./0.0/…/..         28 W    AERO 27 W   RMY 28
06/03  79/55/67/+5/T/0.0/…/..            29 W    AERO 28 W   RMY 26
06/04  87/62/75/+12/…./0.0/…/..        26 W    AERO 25 S   RMY N/A
06/05  80/65/73/+10/…./0.0/…/..        28 SSW  AERO 28 SSW RMY N/A TSTM
06/06  86/57/72/+9/…./0.0/…/..         55 SW   AERO 59 SW  RMY 59  TSTM
06/07  68/54/61/-3/0.00/0.0/…/..         24 NW   AERO 24 NW  RMY N/A
06/08  77/51/64/0/0.00/0.0/…/..          25 W    AERO 24 W   RMY 25
06/09  77/60/69/+5/T/0.0/…/..            23 E    AERO 21 E   RMY N/A
06/10  70/58/64/-1/T/0.0/…/..            25 E    AERO 24 E   RMY N/A
06/11  71/64/68/+3/0.62/0.0/…/..         40 S    AERO 40 S   RMY 42
06/12  82/63/73/+8/0.00/0.0/…/..         26 W    AERO 25 W   RMY 27
06/13  71/53/62/-3/0.00/0.0/…/..         21 WNW  AERO 20 WNW RMY N/A
06/14  67/49/58/-8/0.00/0.0/…/..         21 E    AERO 21 ENE RMY 21
06/15  67/53/60/-6/5/0/0.0/…/..          21 NE   AERO 16 ENE RMY 20
06/16  73/54/64/-2/0.00/0.0/…/..         18 E    AERO 18 E   RMY 18
06/17  78/57/68/+1/0.00/0.0/…/..         20 S    AERO 20 S   RMY 20
06/18  86/59/73/+6/0.00/0.0/…/..         22 S    AERO 22 SSW RMY 22
06/19  86/66/76/+9/0.00/0.0/…/..         22 S    AERO 22 S   RMY 21
06/20  90/65/78/+10/0.00/0.0/…/..        22 S    AERO 21 S   RMY 21
06/21  90/66/78/+10/0.83/0.0/…/..        33 ESE  AERO 35 ESE RMY 33  TSTM
06/22  77/65/71/+3/0.00/0.0/…/..         15 E    AERO 17 S   RMY 14
06/23  85/65/75/+7/0.00/0.0/…/..         27 S    AERO 24 S   RMY 26

06/24 The low since midnight is 66F, the daily normal low is 60F

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):

RECORDS FOR JUNE 24
HIGH 91F IN 1914,1976,2013
LOW 40F IN 1932
PRECIP 2.80 INS IN 1929
PEAK GUST 54 MPH WNW IN 2010

RECORDS FOR JUNE 25
HIGH 93F IN 1943,1980, 2005
LOW 47F IN 1903
PRECIP 1.38 INS IN 2012
PEAK GUST 51 MPH W IN 1960

TODAY’S REPORT PREPARED BY: Nicholas Rousseau

Category: Daily Discussions

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