Tuesday, September 20, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, SEPTEMBER 20, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0529E
SUNSET: 1745E
ANOTHER DAY OF CLOUDY AND COOL CONDITIONS….
Showers and thunderstorms moved through last evening leaving
0.22″ of rain in the gauge. Certainly has been nice seeing
more frequent rain events, even if they’ve been on the lighter
side. For the month we are running at a surplus with +0.64″,
however we still have a rather steep deficit (-10.39″) for the
year which would take a few heavier rain events (2″+) to be able
to overcome. Even though there hasn’t been much talk about it
recently, we are still under severe-extreme drought conditions
across the area.
Today has been overcast with a light, but cool breeze coming in
off the ocean. Temperatures have been held in the low 60s thus
far, which is a good 8-10 degrees below the normal highs we’d
expect on today’s date.
The wind has been quite light, even briefly going calm this
morning. The average speed for the day has only been around
5mph!
Visibility has been limited for the most part to 15 miles or
less due to various degrees of fog, however we have been able
to see as far as 30 miles only to the SSW-SW early this
afternoon.
The high so far today is 63F, which is 8 degrees below the
normal maximum of 71F. The low since midnight is 56F, which is
2 degrees above the normal minimum of 54F.
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Today’s Observations:
7 A.M.
Weather: Sky obscured, vertical visibility 200ft, light drizzle
Temperature: 57F; Dew Point: 57F; Relative Humidity: 100%
Wind: ENE @ 4 kts, wind light
Sea-level pressure: 1011.3 mb; 29.86 in. Hg: rising, then more slowly
Visibility: 1/4 mile, fog
6-hr Max temp: 59F
6-hr Min temp: 56F
24-hr Precip: 0.22 ins.
BHO SA 1155 X W2 1/4L-F 113/57/57/0604/986/ PCPN VRY LGT WND LGT/
8//// 51013 6000/ 70022 10059 20056
10 A.M.
Weather: Sky obscured, vertical visibility 300ft, very light drizzle
Temperature: 60F; Dew Point: 60F; Relative Humidity: 100%
Wind: E @ 5 kts, wind light
Sea-level pressure: 1011.8 mb; 29.88 in Hg: rising, then more slowly
Visibility: 1/2 mile, fog
3-hr Precip: 0.01 ins.
BHO SA 1455 X W3 1/2L-F 118/60/60/0905/988/ PCPN VRY LGT WND LGT/
8//// 51005 6001/
1 P.M.
Weather: Overcast stratus
Temperature: 61F, Dew point: 59F; Relative Humidity: 93%
Wind: E @ 3 kts, wind light
Sea-level pressure: 1012.0 mb; 29.88 in Hg: falling, then rising
Visibility: 15 miles, 30 miles SSW-SW, thin fog
6-hr Max temp: 63F
6-hr Min temp: 57F
6-hr Precip: 0.01 ins.
BHO SA 1755 E6 OVC 15 120/61/59/0803/988/ THN F ALQDS VSBY 30 SSW-SW
WND LGT/ 8/6// 53002 6001/ 10063 20057
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SUMMARY FOR MONDAY, SEPTEMBER 19, 2022
TEMPERATURE (DEGREES F)
MAX…….66 NORMAL…..72
MIN…….56 NORMAL…..55
MEAN……61 NORMAL…..63
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….-2
TOTAL DEPARTURE FOR THE MONTH………………….-2 [-0.3 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….4 DEPARTURE………0
TOTAL HEATING UNITS FOR THE MONTH……………27 DEPARTURE…….-12
TOTAL HEATING UNITS FOR THE SEASON…………..27 DEPARTURE…….-30
TOTAL HEATING UNITS LAST SEASON TO DATE………41 DEPARTURE…….-14
COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………….0 DEPARTURE……..-2
TOTAL COOLING UNITS FOR THE MONTH……………48 DEPARTURE…….-13
TOTAL COOLING UNITS FOR THE SEASON………….884 DEPARTURE……+227
TOTAL COOLING UNITS LAST SEASON TO DATE……..696 DEPARTURE……+188
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….22 SW @ 8:25 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..23 @ 8:25 P.M.
DAVIS #2 ………………21 S @ 8:04 P.M.
RMY #2 (Instantaneous)…..22 SW @ 8:25 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………………16 ENE @ 6:08 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..16 @ 6:08 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………16 ENE @ 6:08 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..16 ENE @ 6:08 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……..8.7 ENE [308 total miles]
VECTOR #2………………9.3
DAVIS #2……………….9.3 E
RMY #2…………………9.3 E
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……..0.22 DEPARTURE…..+0.07
TOTAL PRECIPITATION FOR THE MONTH…………..3.05 DEPARTURE…..+0.64
TOTAL PRECIPITATION FOR THE YEAR…………..26.63 DEPARTURE….-10.39
————————————————————–
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 The low since midnight is 56F, the daily normal low is 54F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR SEPTEMBER 20
HIGH 90 IN 1983
LOW 34 IN 1979
PRECIP 4.57 INS IN 1899
PEAK GUST 44 MPH NE IN 1972
RECORDS FOR SEPTEMBER 21
HIGH 91 IN 1895
LOW 35 IN 1929, 1956, 1962
PRECIP 5.58 INS IN 1961 (HURRICANE ESTHER; RETURNED AS TS SEPT 25-26TH)
PEAK GUST 186 MPH S IN 1938 (GREAT NEW ENGLAND HURRICANE; CALCULATED GUST, STATION RECORD)
TODAY’S REPORT PREPARED BY: Matt Douglas
