Saturday, October 29, 2022

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

SATURDAY, OCTOBER 29, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0614E
SUNSET:  1641E

ANOTHER COOLER FALL DAY FEATURING GREAT VISIBILITY….

Today we observed 85 miles of visibility on average,
as dew points rose to the low 40’s. The weather
was comfortable with a cool easterly breeze around
8 mph on average. The max gust so far today is 15 mph.

Skies were mostly clear with some cumulus spotted off
to the east.

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.

The monthly rain total is 5.69 inches, which shows a 0.73 inch
surplus on the month. On the year, our total is 33.68 inches.
This gives us a deficit of 9.95 inches so far this year.

The high so far today is 56F, which is the same as the
normal maximum. The low since midnight is 36F, which
is 3 degrees below the normal low of 39F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Scattered cirrocumulus, few small cumulus NE-E-S,
few altocumulus
Temperature: 39F; Dew Point: 35F; Relative Humidity: 84%
Wind: NNE @ 8 kts
Sea-level pressure: 1032.3 mb; 30.48 in. Hg: falling unsteadily
Visibility: 80 miles
6-hr Max temp: 40F
6-hr Min temp: 36F
24-hr Precip: 0.00 ins.
BHO SA 1155 250 SCT 80 323/39/35/0208/048/ FEW SML CU NE-E-S
FEW AC ALQDS/ 8/159 57006 10040 20036

10 A.M.
Weather: Clear, few small cumulus and cirrus NE-E-S
Temperature: 50F; Dew Point: 40F; Relative Humidity: 68%
Wind: NE @ 7 kts
Sea-level pressure: 1033.3 mb; 30.51 in Hg: rising, then
more slowly
Visibility: 80 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 CLR 80 333/50/40/0507/051/ FEW SML CU NE-E-S
FEW CI NE-E-S/ 8/102 51010

1 P.M.
Weather: Clear, few distant cirrus offshore NE-E-S
Temperature: 55F, Dew point: 37F; Relative Humidity: 50%
Wind: ENE @ 5 kts, wind light
Sea-level pressure: 1031.3 mb; 30.59 in Hg: rising then falling
Visibility: 85 miles
6-hr Max temp: 56F
6-hr Min temp: 39F
6-hr Precip: 0.00 ins.
BHO SA 1755 CLR 85 313/55/37/0705/045/ FEW CI DSNT OFFSHR NE-E-S
WND LGT/ 8/102 58020 10056 20039

————————————————————–

SUMMARY FOR THURSDAY, OCTOBER 28, 2022

TEMPERATURE (DEGREES F)
MAX…….50   NORMAL…..57
MIN…….36   NORMAL…..40
MEAN……43   NORMAL…..48

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….-5
TOTAL DEPARTURE FOR THE MONTH………………….+57 [+1.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………22  DEPARTURE…….+5
TOTAL HEATING UNITS FOR THE MONTH…………..277  DEPARTURE…….-64
TOTAL HEATING UNITS FOR THE SEASON………….376  DEPARTURE…….-85
TOTAL HEATING UNITS LAST SEASON TO DATE……..287  DEPARTURE…….+89

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)…….25 NE  @  9:16 A.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..26     @  9:16 A.M.
DAVIS #2 ………………23 ENE @  8:43 A.M.
RMY #2 (Instantaneous)…..26 NE  @  9:34 A.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 ENE @  9:16 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..18     @  9:13 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………17 NE  @  9:13 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 NE  @  9:13 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……..9.6 N [231 total miles] VECTOR #2……………..10.2
DAVIS #2………………10.0 NE
RMY #2………………..10.0 NE
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……..0.00 DEPARTURE…..-0.19
TOTAL PRECIPITATION FOR THE MONTH…………..5.69 DEPARTURE…..+0.73
TOTAL PRECIPITATION FOR THE YEAR…………..33.68 DEPARTURE…..-9.95

————————————————————–

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 66/42/54/+5/…./…/..           34 NNW  AERO N/A    RMY 34
10/28 50/36/43/-5/0.00/…/..           25 NE   AERO N/A    RMY 26

10/29 The low since midnight is 36F, the daily normal low is 39F

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 29
HIGH 74F IN 1989
LOW 23F IN 1891
PRECIP 2.42 INCHES IN 2012
SNOWFALL 4.0 INCHES IN 2011
PEAK GUST 76 E IN 2012

RECORDS FOR OCTOBER 30
HIGH 75F IN 1946,1989
LOW 21F IN 1928
PRECIP 1.85 INCHES IN 1917
SNOWFALL 6.5 INCHES IN 2020
PEAK GUST 73 SE IN 2017

TODAY’S REPORT PREPARED BY: Benjamin Turner