Tuesday, October 3, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, OCTOBER 3, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0543E
SUNSET: 1723E
ABUNDANT SUNSHINE WITH NEAR RECORD WARM TEMPERATURES AT BLUE HILL…
Plenty of sunshine has been the theme today with clear skies
featuring only a few high thin cirrus clouds off to the distant
north. An upper level ridge has slid into the eastern U.S. and is
parked over the region for the next few days, thus allowing for
quite a bit of warming of the air mass this week.
Temperatures have warmed into the upper 70s and low 80s this
afternoon, which is 10-15 degrees above the expected high temperature
for this date! The record high for today’s date is 82F set in 1922.
So far we’ve reached 80F, but I think we’ll fall just short of
reaching today’s record, but stay tuned. The dew point has also been
on the increase with values rising from the upper 40s early this
morning to the low 60s early this afternoon.
The wind has been light out of the west-southwest for the most part.
The average speed for the day so far is around 9mph with a peak gust
of around 18mph occurring just before 6am.
Visibility is decent, but somewhat limited by haziness. The view
has been stuck around 40 miles all day.
The maximum temperature so far today has been 80F, which is
14 degrees above the normal high of 66F. The minimum temperature
since midnight is 54F, which is 5 degrees above the normal low
of 49F.
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PRELIMINARY STATS FOR SEPTEMBER 2023
TEMPERATURE, Deg. F
Avg. Max. 72.5 [-0.2]
Avg. Min. 58.4 [+2.8]
Mean 65.5 [+1.3]
24-hour corrected mean: 64.6
Max. for month: 92F on the 7th
Min. for month: 46F on the 27th
HEATING DEGREE DAYS
Total heating units: 98 [-002]
Total for the season: 99 [-019]
Total for last season: 99
COOLING DEGREE DAYS
Total cooling units: 119 [+045]
Total for the season: 689 [+019]
Total for last season: 884
PRECIPITATION, Inches
Total: 6.77 [+2.71]
Greatest in 24 hrs: 1.92 on the 13th
SNOWFALL, Inches
Total: 0.0 [0.0]
Greatest in 24 hrs: N/A
WIND, mph
Avg. uncorrected wind speed: 9.6 mph
Avg. corrected wind speed: 10.2 mph
Prevailing wind direction: East-northeast [16%]
Peak gust and direction: 44 WNW on the 17th
SUNSHINE:
Campbell-Stokes card minutes: 11454 of a possible 22582, or 53%
Astronomical total minutes: 11917 of a possible 22465, or 53%
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Today’s Observations:
7 A.M.
Weather: Clear, few cirrus distant NW-NNE
Temperature: 57F; Dew Point: 47F; Relative Humidity: 68%
Wind: WSW @ 8 kts
Sea-level pressure: 1021.3 mb; 30.16 in. Hg: steady
Visibility: 40 miles, hazy
6-hr Max temp: 57F
6-hr Min temp: 54F
24-hr Precip: 0.00 inches
BHO SA 1155 CLR 213/57/47/2508/016/ FEW CI DSNT NW-NNE HAZY/
8/001 54000 10057 20054
10 A.M.
Weather: Clear, few cirrus distant NW-NE
Temperature: 68F; Dew Point: 56F; Relative Humidity: 65%
Wind: WSW @ 4 kts, wind light
Sea-level pressure: 1021.3 mb; 30.16 in. Hg: rising, then falling
Visibility: 40 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 CLR 213/68/56/2504/016/ FEW CI DSNT NW-NE HAZY/ 8/001 50000
1 P.M.
Weather: Clear, few cirrus distant NW-NE
Temperature: 79F; Dew Point: 62F; Relative Humidity: 57%
Wind: W @ 5 kts, wind light
Sea-level pressure: 1020.0 mb; 30.12 in. Hg: falling, then more rapidly
Visibility: 40 miles, hazy
6-hr Max temp: 80F
6-hr Min temp: 57F
6-hr Precip: 0.00 inches
BHO SA 1755 CLR 200/79/62/2705/012/ FEW CI DSNT NW-NE HAZY/ 8/001 58013
10080 20057
————————————————————–
SUMMARY FOR MONDAY, OCTOBER 2, 2023
TEMPERATURE (DEGREES F)
MAX…….68 NORMAL…..66
MIN…….55 NORMAL…..49
MEAN……62 NORMAL…..58
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….+4
TOTAL DEPARTURE FOR THE MONTH………………….+5 [+2.3 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY…………….3 DEPARTURE……..-5
TOTAL HEATING UNITS FOR THE MONTH…………….9 DEPARTURE……..-6
TOTAL HEATING UNITS FOR THE SEASON………….108 DEPARTURE…….-25
TOTAL HEATING UNITS LAST SEASON TO DATE……..125 DEPARTURE…….-17
COOLING DEGREE DAYS (SEASON: JAN 2023 THRU DEC 2023)
TOTAL COOLING UNITS FOR YESTERDAY…………….0 DEPARTURE……..-1
TOTAL COOLING UNITS FOR THE MONTH…………….0 DEPARTURE……..-1
TOTAL COOLING UNITS FOR THE SEASON………….689 DEPARTURE…….+17
TOTAL COOLING UNITS LAST SEASON TO DATE……..884 DEPARTURE……-195
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)……….E24 NE @ 09:42 A.M.
VECTOR #1 (1-Sec)……….23 NE @ 09:42 A.M.
VECTOR #2 (1-Sec)……….24 NE @ 09:44 A.M.
DAVIS #1……………….22 NE @ 09:42 A.M.
DAVIS #2 ………………23 ENE @ 09:42 A.M.
RMY #1 (Instantaneous)…..24 NE @ 09:44 A.M.
RMY #2 (Instantaneous)…..24 NE @ 09:44 A.M.
MERLIN…………………21 NE
RICHARDS (C5C) (Inst)……22 @ 10:40 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………16 NE @ 10:42 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..16 @ 10:38 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..16 @ 02:23 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………16 NE @ 10:38 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………16 NE @ 10:38 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..15 NE @ 10:38 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..16 NNE @ 02:22 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………15 @ 10:38 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..8.7 NE [208 total miles]
VECTOR #1………………9.0
VECTOR #2………………9.5
DAVIS #1……………….9.3 NE
DAVIS #2……………….9.0 NE
RMY #1…………………9.0 NE
RMY #2…………………9.4 NE
RICHARDS (C5C)………….9.4
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.17
TOTAL PRECIPITATION FOR THE MONTH…………..0.00 DEPARTURE…..-0.34
TOTAL PRECIPITATION FOR THE YEAR…………..47.22 DEPARTURE…..+8.21
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PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER 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
9/1 73/52/63/-6/0.00/774/98 23 SSW VEC1 22 SSW RMY 21
9/2 79/56/68/-1/0.00/708/90 25 SW VEC1 24 SW RMY 26
9/3 85/61/73/+5/T/674/86 21 SW VEC1 21 SW RMY 21
9/4 85/68/77/+9/0.00/719/92 17 NW VEC1 16 NW RMY 16
9/5 86/68/77/+9/0.00/647/83 16 NNE VEC1 16 ENE RMY 16
9/6 89/70/80/+12/0.00/722/93 17 WSW VEC1 17 SSW RMY 18
9/7 92/72/82/+15/0.00/726/94 20 SSW VEC1 21 SSW RMY 21
9/8 86/70/78/+11/0.00/293/38 30 SSW VEC1 31 SSW RMY 32 TSTM
9/9 86/68/77/+10/0.49/291/38 30 S VEC1 31 S RMY 29 TSTM
9/10 78/67/73/+7/0.25/008/01 17 NE VEC1 17 NE RMY 15 TSTM
9/11 74/67/71/+5/0.64/023/03 15 E VEC1 15 E RMY 14 TSTM
9/12 79/65/72/+6/T/250/33 18 E VEC1 17 E RMY 18
9/13 76/64/70/+5/1.92/242/32 35 SSW VEC1 35 SSW RMY 36 TSTM
9/14 75/57/66/+1/0.00/670/89 24 NW VEC1 24 NW RMY 24
9/15 66/53/60/-5/0.00/465/62 36 N VEC1 35 N RMY 35
9/16 68/54/61/-3/0.21/022/03 44 WNW VEC1 44 WNW RMY 47
9/17 76/53/65/+1/0.00/685/92 26 WNW VEC1 25 WNW RMY 24
9/18 64/60/62/-1/1.56/000/00 33 WNW VEC1 33 WNW RMY 35 TSTM
9/19 70/56/63/0/0.00/665/90 35 WNW VEC1 37 WNW RMY 36
9/20 72/53/63/0/0.00/714/97 21 WNW VEC1 21 WNW RMY 22
9/21 71/52/62/0/0.00/661/90 17 NNW VEC1 17 NNW RMY 17
9/22 68/54/61/-1/0.00/570/78 23 E VEC1 21 E RMY 22
9/23 58/54/56/-6/0.24/000/00 30 NE VEC1 30 NE RMY 27
9/24 60/56/58/-3/0.73/000/00 30 ENE VEC1 30 ENE RMY 29
9/25 60/55/58/-3/0.13/000/00 38 ENE VEC1 40 ENE RMY 41
9/26 57/47/52/-8/T/216/30 36 NE VEC1 37 NE RMY 39
9/27 63/46/55/-5/0.00/652/91 18 ENE VEC1 18 E RMY 18
9/28 65/50/58/-1/0.00/520/73 18 E VEC1 18 E RMY 19
9/29 57/52/55/-4/0.46/000/00 28 NNE VEC1 25 NNE RMY 26
9/30 58/52/55/-4/0.14/000/00 23 N VEC1 23 NE RMY 25
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SEPTEMBER DAILY RECORDS
09/07/2023: NEW RECORD HIGH DAILY MINIMUM TEMPERATURE OF 72F;
BEATS THE RECORD OF 70F SET IN 1999
09/07/2023: RECORD HIGH TEMPERATURE OF 92F;
TIES THE RECORD OF 92F SET IN 2007 AND 2015
09/08/2023: RECORD HIGH DAILY MINIMUM TEMPERATURE OF 70F;
TIES THE RECORD OF 70F SET IN 2015
————————————————————–
PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 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
10/1 68/50/59/+1/0.00/…/.. 20 NNE VEC1 20 NNE RMY 19
10/2 68/55/62/+4/0.00/…/.. 24 NE VEC1 23 NE RMY 24
10/3 The low since midnight is 54F, the daily normal low is 49F
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR OCTOBER 3
HIGH 82F IN 1922
LOW 28F IN 1899
PRECIP 1.76 INCHES IN 1979
PEAK GUST 62 MPH WNW IN 1964
RECORDS FOR OCTOBER 4
HIGH 84F IN 2007
LOW 28F IN 1888
PRECIP 1.87 INCHES IN 2011
PEAK GUST 59 MPH SSW IN 1990
TODAY’S REPORT PREPARED BY: Matt Douglas
