Friday, June 28, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
FRIDAY, JUNE 28, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0410E
SUNSET: 1925E
BEAUTIFUL DAY WITH PLENTY OF SUNSHINE, PLEASANT TEMPERATURES,
AND LOW HUMIDITY LEVELS….
What a day it is today. Blue skies and abundant sunshine has been
the theme today with a very pleasant polar air mass taking over
the region. This is what I’ve coined “Canadian Summer”!
Temperatures have risen into the low to mid 70s early this afternoon
after a morning low in the low 50s. The dew point has been in the
low to mid 40s all day which is just unbelievably comfortable for
this time of year.
The wind has been gradually diminishing as the day progresses. It
was gusty this morning with values pushing over 25mph at times.
The average speed for the day so far is around 10mph. The peak gust
is 29mph, occurring right around 7am this morning.
Visibility has been excellent all day with a view of 70-80 miles!
Absolutely spectacular for this time of year.
The maximum temperature so far today is 74F, which is 5 degrees
below the normal high of 79F. The minimum temperature since
midnight is 52F, which is 10 degrees below the normal low of 62F.
A unique metric that we keep track of here at Blue Hill is the
date of the first ripe blueberry. Blueberries grow wild here on
Blue Hill and we’ve been observing them since 1886. Today marks
the date for the first ripe blueberries for 2024. The average
date is around June 21st, so it is about a week later than
average this year. The earliest recorded date was June 5th, 2012,
and the latest recorded date was July 12, 1901.
Blueberries like the heat, so years that tend to have hot weather
earlier, will generally have an earlier ripening date. Thus the
opposite is true for years that lack hot weather in May and June.
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Today’s Observations:
7 A.M.
Weather: Clear, few stratocumulus distant E, few cirrus overhead-
SE-SW-WNW
Temperature: 59F; Dew Point: 40F; Relative Humidity: 48%
Wind: NNW @ 12G22 kts
Sea-level pressure: 1019.6 mb; 30.11 in. Hg: rising, then more slowly
Visibility: 80 miles
6-hr Max temp: 59F
6-hr Min temp: 52F
24-hr Precip: 0.00 inches
BHO SA 1155 CLR 80 196/59/40/3312G22/011/ FEW SC DSNT E FEW CI
OVHD-SE-SW-WNW/ 8/501 51028 10059 20052
10 A.M.
Weather: Clear, few cirrus distant NNE-SE-SW
Temperature: 67F; Dew Point: 42F; Relative Humidity: 41%
Wind: NNW @ 10G18 kts
Sea-level pressure: 1020.6 mb; 30.14 in. Hg: rising, then more rapidly
Visibility: 80 miles
3-hr Precip: 0.00 inches
BHO SA 1455 CLR 80 206/67/42/3410G18/014/ FEW CI DSNT NNE-SE-SW/
8/001 53010
1 P.M.
Weather: Clear, few cirrus all quadrants
Temperature: 72F; Dew Point: 44F; Relative Humidity: 36%
Wind: NW @ 6 kts, wind light
Sea-level pressure: 1021.3 mb; 30.16 in. Hg: rising, then more slowly
Visibility: 70 miles
6-hr Max temp: 74F
6-hr Min temp: 59F
6-hr Precip: 0.00 inches
BHO SA 1755 CLR 70 213/72/44/3106/016/ FEW CI ALQDS WND LGT/ 8/001
51007 10074 20059
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SUMMARY FOR THURSDAY, JUNE 27, 2024
TEMPERATURE (DEGREES F)
MAX…….80 NORMAL…..79
MIN…….60 NORMAL…..61
MEAN……70 NORMAL…..70
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………0
TOTAL DEPARTURE FOR THE MONTH…………………….+90 [+3.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY…………….0 DEPARTURE……..-1
TOTAL HEATING UNITS FOR THE MONTH……………12 DEPARTURE…….-52
TOTAL HEATING UNITS FOR THE SEASON…………5391 DEPARTURE……-818
TOTAL HEATING UNITS LAST SEASON TO DATE…….5295 DEPARTURE…….+96
COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….5 DEPARTURE……..-1
TOTAL COOLING UNITS FOR THE MONTH…………..129 DEPARTURE…….+36
TOTAL COOLING UNITS FOR THE SEASON………….166 DEPARTURE…….+46
TOTAL COOLING UNITS LAST SEASON TO DATE……..105 DEPARTURE…….+61
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all on Main Tower.
E=Estimated
F420C (Official)……….E32 WNW @ 07:04 P.M.
VECTOR #1 (1-Sec)……….31 WNW @ 07:04 P.M.
VECTOR #2 (1-Sec)……….31 WNW @ 07:49 P.M.
DAVIS #1……………….29 NW @ 07:04 P.M.
DAVIS #2 ………………28 WNW @ 07:06 P.M.
RMY #1 (Instantaneous)…..33 WNW @ 07:04 P.M.
RMY #2 (Instantaneous)…..31 WNW @ 07:49 P.M.
MERLIN…………………30 NW
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………22 NNW @ 09:55 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..19 @ 06:25 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..21 @ 07:08 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………20 W @ 06:25 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………21 WNW @ 07:08 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..18 WNW @ 06:25 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..21 WNW @ 07:08 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……10.3 W [247 total miles]
VECTOR #1…………….10.4
VECTOR #2…………….10.8
DAVIS #1……………..10.5 W
DAVIS #2……………..10.5 WNW
RMY #1………………..9.9 W
RMY #2……………….10.5 W
RICHARDS (C5C)…………OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE MONTH…………..4.72 DEPARTURE…..+0.48
TOTAL PRECIPITATION FOR THE YEAR (2024)…….35.54 DEPARTURE…..+8.70
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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 79/53/66/+4/0.00/878/97 18 WNW VEC1 20 NW RMY 20
6/2 83/52/68/+6/0.00/780/86 21 W VEC1 21 W RMY 21
6/3 78/57/68/+6/0.00/626/69 22 NE VEC1 22 NE RMY 21
6/4 75/55/65/+2/0.00/817/90 20 SSW VEC1 19 SSW RMY 19
6/5 84/56/70/+7/T/564/62 29 SW VEC1 28 SW RMY 29
6/6 74/60/67/+4/0.01/064/07 20 SSE VEC1 20 SSE RMY 20
6/7 80/60/70/+6/0.14/410/45 26 WNW VEC1 27 WNW RMY 27
6/8 73/54/64/0/T/767/84 48 W VEC1 49 W RMY 47
6/9 67/55/61/-3/0.25/292/32 29 WNW VEC1 28 WNW RMY 26
6/10 75/54/65/0/T/868/95 28 W VEC1 27 W RMY 27
6/11 71/53/62/-3/0.00/320/35 16 WNW VEC1 15 WNW RMY 15
6/12 76/59/68/+3/0.00/531/58 16 S VEC1 16 SSE RMY 17
6/13 82/57/70/+4/0.00/869/95 28 SW VEC1 27 SW RMY 28
6/14 84/63/74/+9/0.75/476/52 50 NW VEC1 50 NW RMY 53 TSTM
6/15 75/54/66/0/0.23/824/90 23 NNW VEC1 27 NW RMY 26
6/16 72/51/62/-5/0.00/815/89 22 SSE VEC1 23 S RMY 23
6/17 80/56/68/+1/0.00/596/65 30 SSW VEC1 31 SSW RMY 31
6/18 92/64/78/+11/0.00/853/93 24 SW VEC1 23 SSW RMY 23
6/19 93/66/80/+12/0.00/642/70 24 SW VEC1 24 SW RMY 25
6/20 94/68/81/+13/0.10/706/77 36 NNW VEC1 37 NNW RMY 36 TSTM
6/21 83/61/72/+4/0.90/669/73 28 ENE VEC1 28 ENE RMY 28 TSTM
6/22 69/59/64/-5/0.27/000/00 19 NE VEC1 21 NE RMY 21
6/23 84/59/72/+3/0.15/238/26 38 SSW VEC1 38 SSW RMY 38
6/24 80/61/71/+2/0.09/770/84 36 N VEC1 36 N RMY 40
6/25 86/61/74/+4/T/806/88 26 NNW VEC1 26 NNW RMY 27
6/26 87/65/76/+6/1.63/577/63 37 WSW VEC1 37 WSW RMY 41 TSTM
6/27 80/60/70/0/0.20/631/69 32 WNW VEC1 31 WNW RMY 33
6/28 The low since midnight is 52F, the daily normal low is 62F.
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JUNE DAILY RECORDS TO DATE
6/19 RECORD MAXIMUM TEMPERATURE OF 93F,
BEATING THE PREVIOUS RECORD OF 92F SET IN 1923
6/20 RECORD MAXIMUM TEMPERATURE OF 94F,
TIED WITH PREVIOUS RECORD SET IN 1953
6/20 RECORD HIGH MINIMUM TEMPERATURE OF 68F,
TIED WITH PREVIOUS RECORD SET IN 1923 AND 1931
6/26 RECORD PRECIPITATION OF 1.63″,
BEATING THE PREVIOUS RECORD OF 1.22″ SET IN 1938
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR JUNE 28
HIGH 95F IN 1991
LOW 47F IN 1970
PRECIP 3.27 INS IN 2020
PEAK GUST 52 MPH WSW IN 1993
RECORDS FOR JUNE 29
HIGH 95F IN 2021
LOW 42F IN 1919
PRECIP 1.60 INS IN 1889
PEAK GUST 49 MPH S IN 1957
TODAY’S REPORT PREPARED BY: Matt Douglas
