Tuesday, October 4, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, OCTOBER 4, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0545E
SUNSET: 1720E
THE RUT CONTINUES, ONCE AGAIN OVERCAST AND COOL WITH A BRISK WIND….
I know, I’m starting to sound like a broken record as we endure
the third consecutive day of clouds, wind, and chilly temperatures.
We remain stuck between high pressure to the north and low pressure
to the south as they duke it out for dominance. It would seem the
high is retreating a bit as pressure overall is lower today than
yesterday (and falling). Also the air mass has become more moist
with the dew point reaching 50 degrees early this afternoon. Also
the development of drizzle has spread across the area early this
afternoon too.
Either way, there is still enough of a gradient to keep the wind
busy out of the east-northeast to northeast. The average wind speed
so far today has been around 17mph. A peak gust of 39mph was
measured late this morning, however frequent gusts of 30-35mph
have been observed all day.
Temperatures have been holding in the low/mid 50s once again.
The dew point has been slowly creeping up from the mid 40s to
around 50 ahead of some expected rainfall tonight and tomorrow.
Visibility decreased from 50 miles early this morning to only
around 4 miles early this afternoon in drizzle and fog.
The high so far today is 56F, which is 10 degrees below the
normal maximum of 66F. The low since midnight is 49F, which is
equal to the normal minimum of 49F.
————————————————————–
PRELIMINARY STATS FOR SEPTEMBER 2022
TEMPERATURE, Deg. F
Avg. Max. 71.8 [-0.9]
Avg. Min. 54.4 [-1.2]
Mean 63.1 [-1.1]
24-hour corrected mean: 62.5
Max. for month: 86F on the 4th
Min. for month: 42F on the 24th
HEATING DEGREE DAYS
Total heating units: 99 [-1]
Total for the season: 99 [-19]
Total for last season: 74
COOLING DEGREE DAYS
Total cooling units: 48 [-26]
Total for the season: 884 [+215]
Total for last season: 714
PRECIPITATION, Inches
Total: 4.41 [+0.35]
Greatest in 24 hrs: 1.72 inches on the 5th-6th
WIND, mph
Avg. uncorrected wind speed: 9.6 mph
Avg. corrected wind speed: 10.3 mph
Prevailing wind direction: W [10%]
Peak gust and direction: 48 NW on the 23rd
SUNSHINE:
Campbell-Stokes card minutes: 12030 of a possible 51582, or 56%
Astronomical total minutes: 12496 of a possible 22443, or 56%
————————————————————–
Today’s Observations:
7 A.M.
Weather: Broken stratocumulus, overcast altostratus
Temperature: 52F; Dew Point: 45F; Relative Humidity: 76%
Wind: NE @ 13G29 kts, peak wind ENE 35mph at 6:32 A.M.
Sea-level pressure: 1020.6 mb; 30.14 in. Hg: steady, then falling
Visibility: 50 miles
6-hr Max temp: 52F
6-hr Min temp: 50F
24-hr Precip: 0.00 inches
BHO SA 1155 E16 BKN 50 OVC 50 206/52/45/0513G29/014/ PK WND 0630/32/
8/52/ 58006 10052 20050
10 A.M.
Weather: Overcast stratocumulus
Temperature: 53F; Dew Point: 47F; Relative Humidity: 79%
Wind: NE @ 16G30 kts, peak wind NE 35mph at 9:47 A.M.
Sea-level pressure: 1020.8 mb; 30.14 in Hg: rising, then falling
Visibility: 30 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 E15 OVC 30 208/53/47/0516G30/014/ PK WND 0530/47/ 8/5//
50002
1 P.M.
Weather: Broken stratocumulus, overcast nimbostratus, light drizzle
Temperature: 54F, Dew point: 50F; Relative Humidity: 86%
Wind: NE @ 16G28 kts, peak wind NE 37mph at 12:07 P.M.
Sea-level pressure: 1018.7 mb; 30.08 in Hg: falling, then more rapidly
Visibility: 4 miles, 7 miles W-NW, fog
6-hr Max temp: 56F
6-hr Min temp: 52F
6-hr Precip: Trace
BHO SA 1755 E12 BKN 23 OVC 4L-F 187/54/50/0516G28/008/ L-B48 VSBY 7 W-NW
PK WND 0532/07/ 8/52/ 58021 6000/ 10056 20052
————————————————————–
SUMMARY FOR MONDAY, OCTOBER 3, 2022
TEMPERATURE (DEGREES F)
MAX…….54 NORMAL…..66
MIN…….48 NORMAL…..49
MEAN……51 NORMAL…..57
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….-6
TOTAL DEPARTURE FOR THE MONTH…………………-18 [-6.2 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………14 DEPARTURE……..+6
TOTAL HEATING UNITS FOR THE MONTH……………40 DEPARTURE…….+17
TOTAL HEATING UNITS FOR THE SEASON………….139 DEPARTURE……..-2
TOTAL HEATING UNITS LAST SEASON TO DATE………95 DEPARTURE…….+44
COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………….0 DEPARTURE……..-1
TOTAL COOLING UNITS FOR THE MONTH…………….0 DEPARTURE……..-2
TOTAL COOLING UNITS FOR THE SEASON………….884 DEPARTURE……+212
TOTAL COOLING UNITS LAST SEASON TO DATE……..714 DEPARTURE……+170
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….41 ENE @ 10:16 A.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..44 @ 10:16 A.M.
DAVIS #2 ………………38 E @ 3:24 A.M.
RMY #2 (Instantaneous)…..41 ENE @ 6:17 A.M.
ASOS………..OUT OF SERVICE D/T RENOVATIONS
VECTOR #1……OUT OF SERVICE D/T RENOVATIONS
DAVIS #1…….OUT OF SERVICE D/T RENOVATIONS
RMY #1………OUT OF SERVICE D/T RENOVATIONS
MERLIN………OUT OF SERVICE D/T RENOVATIONS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………27 ENE @ 12:17 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..26 @ 9:32 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………26 E @ 8:32 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..26 ENE @ 9:32 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……..OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE….OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE RMY #1 AVERAGE……OUT OF SERVICE D/T RENOVATIONS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….16.5 ENE [397 total miles]
VECTOR #2……………..16.7
DAVIS #2………………16.9 ENE
RMY #2………………..16.1 ENE
RMY #1……….OUT OF SERVICE D/T RENOVATIONS
ASOS…………OUT OF SERVICE D/T RENOVATIONS
VECTOR #1…….OUT OF SERVICE D/T RENOVATIONS
DAVIS #1……..OUT OF SERVICE D/T RENOVATIONS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.16
TOTAL PRECIPITATION FOR THE MONTH…………..0.02 DEPARTURE…..-0.48
TOTAL PRECIPITATION FOR THE YEAR…………..28.01 DEPARTURE….-11.16
————————————————————–
PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER 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
9/1 78/59/69/0/0.00/757/96 36 WNW AERO N/A RMY 37
9/2 73/53/63/-6/0.00/762/97 19 N AERO N/A RMY 19
9/3 80/59/70/+2/0.00/673/86 23 S AERO N/A RMY 24
9/4 86/61/74/+6/0.00/554/71 20 SSW AERO N/A RMY 20
9/5 75/60/68/0/0.83/000/00 20 E AERO N/A RMY 19
9/6 63/60/62/-6/1.57/000/00 27 NE AERO N/A RMY 26
9/7 70/57/64/-3/T/309/40 22 NE AERO N/A RMY 21
9/8 71/56/64/-3/0.01/684/89 20 ENE AERO N/A RMY 20
9/9 77/55/66/-1/0.00/513/67 19 WNW AERO N/A RMY 19
9/10 85/61/73/+7/0.00/657/86 22 NW AERO N/A RMY 21
9/11 76/62/69/+3/0.06/015/02 22 WSW AERO N/A RMY 23
9/12 74/62/68/+2/0.04/121/16 14 WSW AERO N/A RMY 15
9/13 74/66/70/+5/0.28/015/02 22 W AERO N/A RMY 22
9/14 78/56/67/+2/0.00/663/88 29 WNW AERO N/A RMY 29
9/15 70/52/61/-4/0.00/713/95 33 NW AERO N/A RMY 33
9/16 70/47/59/-5/0.00/568/76 24 NNW AERO N/A RMY 24
9/17 70/47/59/-5/0.00/684/92 24 SSW AERO N/A RMY 24
9/18 81/57/69/+6/0.04/542/73 28 WSW AERO N/A RMY 29
9/19 66/56/61/-2/0.22/000/00 22 SW AERO N/A RMY 22 TSTM
9/20 63/56/60/-3/0.05/000/00 19 NW AERO N/A RMY 19
9/21 68/54/61/-1/0.03/190/26 27 SSW AERO N/A RMY 28
9/22 68/50/59/-3/1.07/000/00 36 NW AERO N/A RMY 37 TSTM
9/23 59/45/52/-10/0.00/705/97 48 NNW AERO N/A RMY 48
9/24 68/42/55/-6/0.00/681/94 37 NW AERO N/A RMY 39
9/25 69/50/60/-1/0.01/144/20 28 S AERO N/A RMY 28
9/26 73/56/65/+5/0.20/531/74 35 SSW AERO N/A RMY 37
9/27 73/53/63/+3/0.00/551/77 33 SW AERO N/A RMY 33
9/28 70/50/60/+1/0.00/606/85 22 W AERO N/A RMY 23
9/29 65/47/56/-3/0.00/497/70 23 NNW AERO N/A RMY 22
9/30 60/44/52/-7/0.00/361/51 17 ENE AERO N/A RMY 18
PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 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
10/1 56/48/52/-6/0.02/000/00 26 NE AERO N/A RMY 27
10/2 55/48/52/-6/0.00/077/11 53 ENE AERO N/A RMY 55
10/3 54/48/51/-6/0.00/014/02 41 ENE AERO N/A RMY 41
10/4 The low since midnight is 49F, the daily normal low is 49F
DAILY RECORDS
10/02/2022: NEW PEAK WIND GUST RECORD OF 53 MPH ENE,
PREVIOUS RECORD WAS 52e MPH S IN 1952 AND
52 MPH NNW IN 1984.
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
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
RECORDS FOR OCTOBER 5
HIGH 86F IN 2007
LOW 29F IN 1965
PRECIP 3.17 INCHES IN 1962
PEAK GUST 64e MPH S IN 1979
TODAY’S REPORT PREPARED BY: Matt Douglas
