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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, OCTOBER 18, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0601E
SUNSET: 1657E
OVERNIGHT AND EARLY MORNING RAIN ENDS, FAIR WEATHER THEREAFTER….
Periods of showers that began yesterday afternoon continued
through the overnight hours and into early this morning. 0.59″
of rain was measured from this latest event, bringing the
monthly total up to 4.56″ and the yearly total to 32.55″.
These values represent a 1.64″ surplus and 9.04″ deficit
respectively.
Once the rain moved out and the fog lifted, a mainly cloudy
day with some splashes of sun here and there has been the
theme. Temperatures have warmed nicely into the mid 60s into
early this afternoon, however a cooler and drier air mass is
now moving into the region from the west and southwest of all
directions!
The dew point has finally started to decline from it’s morning
values in the upper 50s, now dropping through the mid to low
50s. These values will continue to drop, likely into the 30s,
by tomorrow morning!
The wind has been busy today out of the southeast early, but it
has been gradually veering toward the southwest this afternoon.
The average speed for the day thus far is around 12mph with a
peak gust this afternoon of 34mph so far!
Visibility has been gradually improving since the fog lifted.
Ranging from 1/16th of a mile this morning to 40 miles so far
this afternoon. I suspect the value will continue to improve
as the drier air mass continues to move into the area.
The high so far today is 66F, which is 5 degrees above the
normal maximum of 61F. The low since midnight is 57F,
which is 14 degrees above the normal low of 43F.
————————————————————–
Today’s Observations:
7 A.M.
Weather: Sky obscured, vertical visibility 200ft, light rain showers
Temperature: 58F; Dew Point: 58F; Relative Humidity: 100%
Wind: SSE @ 10G16 kts
Sea-level pressure: 1001.7 mb; 29.58 in. Hg: falling, then rising
Visibility: 1/16th mile, fog
6-hr Max temp: 59F
6-hr Min temp: 57F
24-hr Precip: 0.59 inches
BHO SA 1155 X W2 1/16RW-F 017/58/58/1510G16/958/ RW-B34
PCPN VRY LGT/ 8//// 55009 6020/ 70059 10059 20057
10 A.M.
Weather: Scattred stratocumulus, broken cumulus, few breaks in
overcast all quadrants
Temperature: 61F; Dew Point: 58F; Relative Humidity: 90%
Wind: SSW @ 8 kts
Sea-level pressure: 1002.3 mb; 29.60 in Hg: rising, then more slowly
Visibility: 30 miles, thin fog
3-hr Precip: Trace
BHO SA 1455 14 SCT E30 BKN 40 OVC 30 023/61/58/2008/960/
FEW BINOVC ALQDS HIER CLDS VSBL OVHD AND DSNT W-NW THN F ALQDS/
8/87/ 51006 6000/
1 P.M.
Weather: Broken stratocumulus, broken cumulus
Temperature: 63F, Dew point: 54F; Relative Humidity: 72%
Wind: SW @ 14G21 kts, peak wind SSW 32mph at 12:19 P.M.
Sea-level pressure: 1002.4 mb; 29.60 in Hg: steady, then rising
Visibility: 40 miles, hazy
6-hr Max temp: 66F
6-hr Min temp: 58F
6-hr Precip: Trace
BHO SA 1755 E25 BKN 35 BKN 40 024/63/54/2214G21/960/ HAZY
PK WND 2128/19/ 8/800 53001 6000/ 10066 20058
————————————————————–
SUMMARY FOR MONDAY, OCTOBER 17, 2022
TEMPERATURE (DEGREES F)
MAX…….59 NORMAL…..61
MIN…….50 NORMAL…..44
MEAN……55 NORMAL…..52
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………..+3
TOTAL DEPARTURE FOR THE MONTH………………….+20 [+1.0 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………10 DEPARTURE……..-3
TOTAL HEATING UNITS FOR THE MONTH…………..149 DEPARTURE…….-26
TOTAL HEATING UNITS FOR THE SEASON………….248 DEPARTURE…….-45
TOTAL HEATING UNITS LAST SEASON TO DATE……..154 DEPARTURE…….+94
COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………….0 DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH…………….0 DEPARTURE……..-6
TOTAL COOLING UNITS FOR THE SEASON………….884 DEPARTURE……+208
TOTAL COOLING UNITS LAST SEASON TO DATE……..717 DEPARTURE……+167
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….29 SSE @ 9:38 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..31 @ 9:38 P.M.
DAVIS #2 ………………29 SSE @ 9:33 P.M.
RMY #2 (Instantaneous)…..30 SSE @ 9:33 P.M.
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………………22 SSE @ 9:30 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..20 @ 9:34 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………20 SSE @ 9:41 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..20 SSE @ 9:34 P.M.
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…….7.8 SSE [186 total miles]
VECTOR #2……………..8.4
DAVIS #2………………7.6 SSE
RMY #2………………..8.5 SSE
RMY #1……….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……..0.59 DEPARTURE…..+0.40
TOTAL PRECIPITATION FOR THE MONTH…………..4.56 DEPARTURE…..+1.64
TOTAL PRECIPITATION FOR THE YEAR…………..32.55 DEPARTURE…..-9.04
————————————————————–
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 56/49/53/-4/0.62/000/00 39 ENE AERO N/A RMY 38
10/5 56/52/54/-3/1.09/000/00 32 NNE AERO N/A RMY 32
10/6 72/56/64/+8/0.05/566/82 23 N AERO N/A RMY 23
10/7 77/52/65/+9/0.00/632/92 31 NW AERO N/A RMY 31
10/8 59/40/50/-5/0.02/596/87 23 NW AERO N/A RMY 23
10/9 61/36/49/-6/0.00/648/95 30 W AERO N/A RMY 30
10/10 65/45/55/0/0.00/231/34 24 SW AERO N/A RMY 24
10/11 65/45/55/1/0.00/623/92 22 WSW AERO N/A RMY 22
10/12 74/51/63/+9/0.00/612/91 29 SW AERO N/A RMY 29
10/13 66/54/60/+6/1.20/074/11 39 SSE AERO N/A RMY 39
10/14 66/54/60/+7/0.97/107/16 41 SE AERO N/A RMY 42
10/15 69/47/58/+5/0.00/632/95 18 SSW AERO N/A RMY 19
10/16 69/50/60/+8/0.00/564/85 17 W AERO N/A RMY 18
10/17 59/50/55/+3/0.38/007/01 29 SSE AERO N/A RMY 30
10/18 The low since midnight is 57F, the daily normal low is 43F
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 18
HIGH 82F IN 1908
LOW 26F IN 1939
PRECIP 2.79 INCHES IN 1975
SNOWFALL 3.0 INCHES IN 2009
PEAK GUST 66 MPH S IN 1967
RECORDS FOR OCTOBER 19
HIGH 81F IN 1945
LOW 21F IN 1922
PRECIP 3.64 INCHES IN 1932
SNOWFALL 1.0 INCHES IN 1972
PEAK GUST 66 MPH SSW IN 1967
TODAY’S REPORT PREPARED BY: Matt Douglas
