Thursday, October 27, 2022

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

THURSDAY, OCTOBER 27, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0611E
SUNSET:  1644E

FAIR WEATHER, YET MILDER ATOP GREAT BLUE HILL….

Today we observed 85 miles of visibility on average,
as dew points plummeted into the mid 40’s. The weather
was comfortable with a cool northwesterly breeze around
15 mph on average. The max gust so far today is 27 mph.

Cloud cover was almost nonexistent today, a great contrast
to the past 4 days!

The drought monitor shows great improvement as most
areas of Massachusetts are reaching normality with the
rainfall this month. There is still a moderate drought in the
Boston area and a severe drought in most of Essex county.

Monthly rain total is 5.69 inches, which shows a 1.10 inch
surplus on the month. On the year, our total is 33.68 inches.
This gives us a deficit of 9.58 inches so far this year.

The high so far today is 66F, which is 10 degrees above the
normal maximum of 56F. The low since midnight is 55F, which
is 16 degrees above the normal low of 39F.

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Today’s Observations:

7 A.M.
Weather: Clear, few cirrus
Temperature: 55F; Dew Point: 54F; Relative Humidity: 97%
Wind: W @ 10G15 kts
Sea-level pressure: 1013.0 mb; 29.91 in. Hg: rising, then
more rapidly
Visibility: 45 miles, thin fog
6-hr Max temp: 61F
6-hr Min temp: 55F
24-hr Precip: 0.43 ins.
BHO SA 1155 CLR 45 130/55/54/2710G15/991/ FEW CI ALQDS THN F
ALQDS/ 8/002 53029 70043 10061 20055

10 A.M.
Weather: Clear, few small cumulus
Temperature: 62F; Dew Point: 54F; Relative Humidity: 75%
Wind: NW @ 9G18 kts
Sea-level pressure: 1015.9 mb; 29.99 in Hg: rising, then
more slowly
Visibility: 85 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 CLR 85 159/62/54/3109G18/999/ FEW SML CU ALQDS/
8/100 51029

1 P.M.
Weather: Clear, few small cumulus
Temperature: 64F, Dew point: 43F; Relative Humidity: 46%
Wind: NNW @ 13G24 kts
Sea-level pressure: 1017.7 mb; 30.05 in Hg: rising unsteadily
Visibility: 85 miles
6-hr Max temp: 66F
6-hr Min temp: 55F
6-hr Precip: 0.00 ins.
BHO SA 1755 CLR 85 177/64/43/3413G24/005/ FEW SML CU ALQDS/ 8/100
52018 10066 20055

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SUMMARY FOR WEDNESDAY, OCTOBER 26, 2022

TEMPERATURE (DEGREES F)
MAX…….64   NORMAL…..57
MIN…….58   NORMAL…..40
MEAN……61   NORMAL…..49

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….+12
TOTAL DEPARTURE FOR THE MONTH………………….+57 [+2.0 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….4  DEPARTURE…….-12
TOTAL HEATING UNITS FOR THE MONTH…………..244  DEPARTURE…….-64
TOTAL HEATING UNITS FOR THE SEASON………….343  DEPARTURE…….-83
TOTAL HEATING UNITS LAST SEASON TO DATE……..247  DEPARTURE…….+96

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)…….24 SW  @ 11:54 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..25     @ 11:54 P.M.
DAVIS #2 ………………24 SW  @ 11:53 P.M.
RMY #2 (Instantaneous)…..23 SW  @ 11:54 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………………16 SW  @ 11:56 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17     @ 11:55 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………17 SW  @ 11:56 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 SW  @ 11:55 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…….7.3 E [176 total miles] VECTOR #2……………..8.5
DAVIS #2………………8.0 SE
RMY #2………………..8.3 ESE
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……..0.43 DEPARTURE…..+0.25
TOTAL PRECIPITATION FOR THE MONTH…………..5.69 DEPARTURE…..+1.10
TOTAL PRECIPITATION FOR THE YEAR…………..33.68 DEPARTURE…..-9.58

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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 64/58/61/+12/…./…/..          24 SW   AERO N/A    RMY 23

10/27 The low since midnight is 55F, 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 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

RECORDS FOR OCTOBER 28
HIGH 81F IN 1919
LOW 23F IN 1914
PRECIP 2.46 INCHES IN 2006
SNOWFALL TRACE IN 1891,1934,1957,1979
PEAK GUST 71 MPH SSW IN 1995

TODAY’S REPORT PREPARED BY: Benjamin Turner