Monday, June 19, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
MONDAY, JUNE 19, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0407E
SUNSET: 1924E
MORE CLOUDS THAN SUN, BUT MUCH DRIER TODAY WITH EXCELLENT VISIBILITY…
Clouds have generally dominated today with a few brief periods
of sun this morning. But it’s been much drier today with no
rain showers in the area today. All in all, it’s not a bad day
out there.
Temperatures have reached the mid to upper 60s today with a
light breeze blowing in from off the ocean. The dew point has
been sitting in the mid 50s, so it’s been comfortable feeling
humidity-wise.
As mentioned, the wind has been mainly on the light side once
again today, with an average speed of around 7mph. The highest
gust so far today has only been around 17mph.
Visibility has been excellent all day with views of 60-70 miles
being seen. Pretty good for mid June!
The high temperature so far today is 67F, which is 10 degrees
below the normal maximum of 77F. The low since midnight is 55F,
this is 4 degrees below the normal minimum of 59F.
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Today’s Observations:
7 A.M.
Weather: Broken stratocumulus, broken altocumulus/castellanus,
few stratus fractus all quadrants
Temperature: 60F; Dew Point: 56F; Relative Humidity: 87%
Wind: ENE @ 5 kts, wind light
Sea-level pressure: 1019.2 mb; 30.10 in. Hg: rising, then more rapidly
Visibility: 60 miles
6-hr Max temp: 60F
6-hr Min temp: 55F
24-hr Precip: 0.03 inches
BHO SA 1155 E30 BKN 75 BKN 60 192/60/56/0705/010/ FEW STFRA ALQDS
WND LGT/ 8/580 53021 70003 10060 20055
10 A.M.
Weather: Scattered cumulus, overcast stratocumulus, few breaks in
overcast distant NNE-E, higher clouds visible distant NNE-E
Temperature: 65F; Dew Point: 53F; Relative Humidity: 65%
Wind: ENE @ 6 kts, wind light
Sea-level pressure: 1020.5 mb; 30.14 in. Hg: rising, then more slowly
Visibility: 70 miles
3-hr Precip: 0.00 inches
BHO SA 1455 30 SCT E40 OVC 70 205/65/53/0606/014/ FEW BINOVC DSNT
NNE-E HIER CLDS VSBL DSNT NNE-E WND LGT/ 8/8// 51013
1 P.M.
Weather: Scattered cumulus, overcast stratocumulus, few breaks in
overcast distant N-SE, higher clouds visible distant N-NE
Temperature: 64F; Dew Point: 56F; Relative Humidity: 74%
Wind: ENE @ 7 kts
Sea-level pressure: 1020.7 mb; 30.14 in. Hg: steady, then rising
Visibility: 70 miles
6-hr Max temp: 67F
6-hr Min temp: 60F
6-hr Precip: 0.00 inches
BHO SA 1755 35 SCT E45 OVC 70 207/64/56/0707/014/ FEW BINOVC DSNT
N-SE HIER CLDS VSBL DSNT N-NE/ 8/8// 53002 10067 20060
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SUMMARY FOR SUNDAY, JUNE 18, 2023
TEMPERATURE (DEGREES F)
MAX…….70 NORMAL…..76
MIN…….56 NORMAL…..58
MEAN……63 NORMAL…..67
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………-4
TOTAL DEPARTURE FOR THE MONTH………………..-39 [-2.4 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….2 DEPARTURE………0
TOTAL HEATING UNITS FOR THE MONTH……………85 DEPARTURE…….+29
TOTAL HEATING UNITS FOR THE SEASON…………5281 DEPARTURE……-919
TOTAL HEATING UNITS LAST SEASON TO DATE…….5594 DEPARTURE……-313
COOLING DEGREE DAYS (SEASON: JAN 2023 THRU DEC 2023)
TOTAL COOLING UNITS FOR YESTERDAY…………….0 DEPARTURE……..-4
TOTAL COOLING UNITS FOR THE MONTH……………37 DEPARTURE…….-12
TOTAL COOLING UNITS FOR THE SEASON…………..68 DEPARTURE……..-8
TOTAL COOLING UNITS LAST SEASON TO DATE……..106 DEPARTURE…….-38
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)……….E20 WNW @ 05:38 A.M.
VECTOR #1 (1-Sec)……….20 WNW @ 05:38 A.M.
VECTOR #2 (1-Sec)……….21 NNW @ 08:10 A.M.
DAVIS #1……………….19 W @ 05:38 A.M.
DAVIS #2 ………………19 WNW @ 05:38 A.M.
RMY #1 (Instantaneous)…..20 NW @ 07:56 A.M.
RMY #2 (Instantaneous)…..21 WNW @ 06:00 A.M.
MERLIN…………………M
RICHARDS (C5C) (Inst)……21 @ 05:38 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………14 W @ 05:12 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..14 @ 05:22 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..14 @ 07:40 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………15 W @ 05:23 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………14 N @ 07:40 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..14 WNW @ 05:22 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..15 NNW @ 07:40 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………14 @ 05:39 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………. 6.5 ESE [156 total miles]
VECTOR #1……………….. 6.9
VECTOR #2……………….. 7.3
DAVIS #1………………… 6.8 NNW
DAVIS #2………………… 6.9 N
RMY #1………………….. 6.7 N
RMY #2………………….. 7.1 NNE
RICHARDS (C5C)…………… 7.5
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.03 DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE MONTH…………..3.61 DEPARTURE…..+0.69
TOTAL PRECIPITATION FOR THE YEAR…………..24.36 DEPARTURE…..-1.16
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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/582/64 31 NNW VEC1 31 NNW RMY 26 TSTM
6/7 65/50/58/-6/0.00/301/33 28 NW VEC1 29 NW RMY 29
6/8 64/51/58/-6/T/191/21 13 WNW VEC1 13 WNW RMY 10
6/9 64/49/57/-7/0.47/210/23 20 WNW VEC1 21 ESE RMY 20 TSTM
6/10 67/51/59/-6/0.05/365/40 26 WNW VEC1 26 WNW RMY 26 TSTM
6/11 80/55/68/+3/0.00/823/90 23 S VEC1 24 S RMY 24
6/12 79/60/70/+5/0.15/439/48 32 SSE VEC1 33 SSE RMY 31
6/13 78/59/69/+3/0.03/421/46 26 SE VEC1 27 SE RMY 24
6/14 78/57/68/+2/0.06/…/.. 38 S VEC1 39 S RMY 39 TSTM
6/15 77/56/67/+1/0.00/…/.. 23 WNW VEC1 22 WNW RMY 22
6/16 81/61/71/+4/T/…/.. 20 W VEC1 19 SSW RMY 19
6/17 64/55/60/-7/1.86/…/.. 21 NE VEC1 21 NE RMY 21
6/18 70/56/63/-4/0.05/…/.. 20 WNW VEC1 20 WNW RMY 20
6/19 The low since midnight is 55F, the daily normal low is 59F
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 19
HIGH 92F IN 1923
LOW 40F IN 1920
PRECIP 3.92 INS 1922
PEAK GUST 66e MPH NW IN 1940
RECORDS FOR JUNE 20
HIGH 94F IN 1953
LOW 41F IN 1918
PRECIP 2.61 INS 1945
PEAK GUST 63 MPH NE IN 1967, SSW IN 2010
TODAY’S REPORT PREPARED BY: Matt Douglas
