Sunday, October 2, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, OCTOBER 2, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0542E
SUNSET: 1724E
OVERCAST AND COOL WITH A GUSTY ONSHORE WIND….
Clouds have been the theme today as we’re stuck between
high pressure to the north and low pressure to the south.
The gradient between these two features has been the reason
for all the wind today.
The average wind speed so far today has been around 19mph. A
peak gust of 53mph was measured early this morning, however
frequent gusts of 30-40mph have been observed all day.
Temperatures have been holding in the low 50s most of the day
after a high in the wee hours of the morning in the mid 50s.
The dew point has also been slipping as the day progresses,
from the mid 40s early this morning to the mid/upper 30s this
afternoon.
Visibility has increased through the day from 30 miles early
this morning to 70 miles this afternoon.
The high so far today is 55F, which is 11 degrees below the
normal maximum of 66F. The low since midnight is 50F, which is
1 degree above 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, few breaks in
overcast distant WNW-N-NE
Temperature: 52F; Dew Point: 45F; Relative Humidity: 76%
Wind: ENE @ 19G38 kts, peak wind ENE 53mph at 6:30 A.M.
Sea-level pressure: 1020.8 mb; 30.14 in. Hg: rising, then more rapidly
Visibility: 30 miles, 60 miles WNW-NW
6-hr Max temp: 55F
6-hr Min temp: 52F
24-hr Precip: 0.02 inches
BHO SA 1155 E20 BKN 75 OVC 30 208/52/45/0619G38/014/ FEW BINOVC DSNT
WNW-N-NE VSBY 60 WNW-NW PK WND 0646/30/ 8/52/ 53018 70002 10055 20052
10 A.M.
Weather: Broken stratocumulus, overcast altostratus
Temperature: 50F; Dew Point: 41F; Relative Humidity: 70%
Wind: NE @ 19G35 kts, peak wind NE 43mph at 9:26 A.M.
Sea-level pressure: 1023.1 mb; 30.21 in Hg: rising, then more rapidly
Visibility: 60 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 E25 BKN 90 OVC 60 231/50/41/0519G35/021/ PK WND 0537/26/
8/52/ 53023
1 P.M.
Weather: Overcast altocumulus, few breaks in overcast all quadrants,
few stratocumulus all quadrants
Temperature: 50F, Dew point: 37F; Relative Humidity: 60%
Wind: NE @ 17G30 kts, peak wind NE 40mph at 12:25 P.M.
Sea-level pressure: 1023.1 mb; 30.21 in Hg: rising, then falling
Visibility: 70 miles
6-hr Max temp: 53F
6-hr Min temp: 50F
6-hr Precip: 0.00 ins.
BHO SA 1755 E120 OVC 70 231/50/37/0417G30/021/ FEW BINOVC ALQDS
FEW SC ALQDS PK WND 0535/25/ 8/55/ 50000 10053 20050
————————————————————–
SUMMARY FOR SATURDAY, OCTOBER 1, 2022
TEMPERATURE (DEGREES F)
MAX…….56 NORMAL…..67
MIN…….48 NORMAL…..50
MEAN……52 NORMAL…..58
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….-6
TOTAL DEPARTURE FOR THE MONTH………………….-6 [-1.2 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………13 DEPARTURE……..+5
TOTAL HEATING UNITS FOR THE MONTH……………13 DEPARTURE……..+6
TOTAL HEATING UNITS FOR THE SEASON………….112 DEPARTURE…….-16
TOTAL HEATING UNITS LAST SEASON TO DATE………85 DEPARTURE…….+27
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……..-1
TOTAL COOLING UNITS FOR THE SEASON………….884 DEPARTURE……+213
TOTAL COOLING UNITS LAST SEASON TO DATE……..714 DEPARTURE……+170
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….26 NE @ 1:52 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..28 @ 1:52 P.M.
DAVIS #2 ………………24 NE @ 1:52 P.M.
RMY #2 (Instantaneous)…..27 NE @ 1:52 P.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………………19 E @ 11:42 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17 @ 11:43 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………17 E @ 11:43 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..16 E @ 11:43 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……..9.5 NE [227 total miles]
VECTOR #2……………..10.2
DAVIS #2………………10.0 ENE
RMY #2………………..10.0 NE
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……..0.02 DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE MONTH…………..0.02 DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE YEAR…………..28.01 DEPARTURE….-10.83
————————————————————–
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 The low since midnight is 50F, the daily normal low is 49F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR OCTOBER 2
HIGH 85F IN 1968
LOW 29F IN 1899
PRECIP 1.75 INCHES IN 1984
PEAK GUST 52e MPH S IN 1952, 52 NNW IN 1984
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
TODAY’S REPORT PREPARED BY: Matt Douglas
