Wednesday, October 26, 2022

BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

WEDNESDAY, OCTOBER 26, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0610E
SUNSET:  1645E

OVERCAST WITH DENSE FOG, AND PERIODS OF RAIN….

We’ve been stuck in the clouds all day here on the hill with
visibility no more than 1/2 of a mile the entire day. Off and
on rainfall has also been occurring. We received 0.09 inches
of rain overnight with an additional 0.38 inches falling after
the 7 A.M. observation.

Temperatures have managed to reach the low to mid 60s despite
the dense fog. This means that the dew point has also risen
into the low to mid 60s. This is quite muggy for this time of
year.

The wind has been generally light today, out of the
easterly direction. The average speed thus far for the day is
only around 7 mph.

The high so far today is 63F, which is 6 degrees above the
normal maximum of 57F. The low since midnight is 58F, which
is 18 degrees above the normal low of 40F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Sky obscured, vertical visibility 300ft
Temperature: 60F; Dew Point: 60F; Relative Humidity: 100%
Wind: E @ 7 kts
Sea-level pressure: 1013.1 mb; 29.92 in. Hg: falling, then
more rapidly
Visibility: 1/16th mile, fog
6-hr Max temp: 62F
6-hr Min temp: 58F
24-hr Precip: 0.09 ins.
BHO SA 1155 X W3 1/16F 131/60/60/0907/992/ 8//// 58015
70009 10062 20058

10 A.M.
Weather: Sky obscured, vertical visibility 300ft, rain
Temperature: 61F; Dew Point: 61F; Relative Humidity: 100%
Wind: E @ 8 kts
Sea-level pressure: 1011.5 mb; 29.87 in Hg: falling, then
more rapidly
Visibility: 1/2 mile, fog
3-hr Precip: 0.27 ins.
BHO SA 1455 X W3 1/2RF 115/61/61/0908/987/ 8//// 58016 6027/

1 P.M.
Weather: Sky obscured, vertical visibility 200ft, light rain
Temperature: 62F, Dew point: 62F; Relative Humidity: 100%
Wind: ENE @ 7 kts
Sea-level pressure: 1009.2 mb; 29.80 in Hg: falling, then more slowly
Visibility: 1/16th mile, fog
6-hr Max temp: 63F
6-hr Min temp: 60F
6-hr Precip: 0.38 ins.
BHO SA 1755 X W2 1/16R-F 092/62/62/1107/980/ R-B40/ 8//// 56023
6038/ 10063 20060

————————————————————–

SUMMARY FOR TUESDAY, OCTOBER 25, 2022

TEMPERATURE (DEGREES F)
MAX…….64   NORMAL…..58
MIN…….56   NORMAL…..41
MEAN……60   NORMAL…..49

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….+11
TOTAL DEPARTURE FOR THE MONTH………………….+45 [+1.6 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….5  DEPARTURE…….-11
TOTAL HEATING UNITS FOR THE MONTH…………..240  DEPARTURE…….-52
TOTAL HEATING UNITS FOR THE SEASON………….339  DEPARTURE…….-71
TOTAL HEATING UNITS LAST SEASON TO DATE……..236  DEPARTURE……+103

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……..-7
TOTAL COOLING UNITS FOR THE SEASON………….884  DEPARTURE……+207
TOTAL COOLING UNITS LAST SEASON TO DATE……..717  DEPARTURE……+167

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….19 ESE @ 10:32 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..19     @ 10:32 P.M.
DAVIS #2 ………………18 ESE @ 11:58 P.M.
RMY #2 (Instantaneous)…..19 ESE @ 11:58 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………………14 ESE @ 11:59 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..14     @ 12:00 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………15 ESE @ 11:59 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..14 ESE @ 12:00 A.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…….8.0 E [193 total miles] VECTOR #2……………..8.7
DAVIS #2………………8.7 E
RMY #2………………..8.8 ENE
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……..0.09 DEPARTURE…..-0.10
TOTAL PRECIPITATION FOR THE MONTH…………..5.26 DEPARTURE…..+0.85
TOTAL PRECIPITATION FOR THE YEAR…………..33.25 DEPARTURE…..-9.83

————————————————————–

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 66/42/54/+2/0.21/256/39           34 SSW  AERO N/A    RMY 36
10/19 56/38/47/-4/0.00/621/95           32 WSW  AERO N/A    RMY 34
10/20 58/39/49/-2/0.00/638/98           35 SW   AERO N/A    RMY 35
10/21 64/43/54/+3/0.00/630/97           23 SSW  AERO N/A    RMY 24
10/22 68/47/58/+8/0.00/606/94           20 SSW  AERO N/A    RMY 20
10/23 57/49/53/+3/0.07/000/00           28 NE   AERO N/A    RMY 29
10/24 58/49/54/+4/0.51/000/00           23 NNE  AERO N/A    RMY 24 TSTM
10/25 64/56/60/+11/…./000/00          19 ESE  AERO N/A    RMY 19

10/26 The low since midnight is 58F, the daily normal low is 40F

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 26
HIGH 80F IN 1963
LOW 24F IN 1921,1933
PRECIP 2.23 INCHES IN 2021
SNOW 3.0 INCHES IN 1962
WIND 59 MPH SSE IN 1967

RECORDS FOR OCTOBER 27
HIGH 83F IN 1963
LOW 21F IN 1936
PRECIP 2.08 INCHES IN 2018
SNOW 2.5 INCHES IN 2011
WIND 66 MPH NNE IN 2021

TODAY’S REPORT PREPARED BY: Benjamin Turner