Sunday, September 4, 2022

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

SUNDAY, SEPTEMBER 4, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0513E
SUNSET:  1813E

WARMER AND MORE HUMID TODAY UNDER A MIX OF SUN AND CLOUDS….

Warm and humid conditions have returned after a few days of much
more pleasant air. Temperatures have warmed into the mid 80s
this afternoon. The dew point has been increasing all day from
the low 60s early this morning to the mid-upper 60s this afternoon.
So the feel of summer has returned.

A mix of sun and clouds have been the theme today with a light
south-southwesterly breeze. The wind has only averaged around
9mph for the day. The peak gust for the day thus far occurred
around 1am this morning with a value of only 19mph.

Visibility has been limited all day holding around 40 miles.

The high so far today is 85F, which is 8 degrees above the
normal maximum of 77F. The low since midnight is 61F, which is
2 degrees above the normal minimum of 59F.

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PRELIMINARY STATS FOR AUGUST 2022

TEMPERATURE, Deg. F
Avg. Max. 85.8 [+5.6] Avg. Min. 65.0 [+2.4] Mean      75.4 [+4.0] 24-hour corrected mean: 73.9

Max. for month: 97F on the 8th and 9th
Min. for month: 58F on the 13th and 14th

HEATING DEGREE DAYS
Total heating units:      0 [-011] Total for the season:     0 [-018] Total for last season:   28

COOLING DEGREE DAYS
Total cooling units:    329 [+120] Total for the season:   836 [+240] Total for last season:  652

PRECIPITATION, Inches
Total: 2.39 [-1.52] Greatest in 24 hrs: 0.83 on the 22nd-23rd

WIND, mph
Avg. uncorrected wind speed:  9.3 mph
Avg. corrected wind speed:   10.0 mph
Prevailing wind direction:    SW [15%] Peak gust and direction:  44 NW on the 18th

SUNSHINE:
Campbell-Stokes card minutes: 16152 of a possible 24780 or 65%
Astronomical total minutes: 16787 of a possible 25745 or 65%

MFD

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Today’s Observations:

7 A.M.
Weather: Scattered altocumulus, scattered cirrocumulus
Temperature: 64F; Dew Point: 60F; Relative Humidity: 86%
Wind: WSW @ 8 kts
Sea-level pressure: 1021.3 mb; 30.16 in. Hg: falling, then steady
Visibility: 40 miles, thin fog
6-hr Max temp: 64F
6-hr Min temp: 61F
24-hr Precip: 0.00 ins.
BHO SA 1155 150 SCT 220 SCT 40 213/64/60/2408/016/ THN F ALQDS/
8/059 56003 10064 20061

10 A.M.
Weather: Clear, few cumulus distant WNW-NW, few altocumulus
all quadrants, few cirrocumulus all quadrants
Temperature: 77F; Dew Point: 64F; Relative Humidity: 65%
Wind: WSW @ 4 kts, wind light
Sea-level pressure: 1021.0 mb; 30.15 in Hg: steady, then falling
Visibility: 40 miles, hazy
3-hr Precip: 0.00 ins.
BHO SA 1455 CLR 40 210/77/64/2404/015/ FEW CU DSNT WNW-NW FEW AC ALQDS
FEW CC ALQDS HAZY WND LGT/ 8/259 58003

1 P.M.
Weather: Scattered cumulus, scattered altocumulus, thin scattered cirrus
Temperature: 83F, Dew point: 66F; Relative Humidity: 57%
Wind: S @ 3 kts, wind light
Sea-level pressure: 1019.6 mb; 30.11 in Hg: falling, then more rapidly
Visibility: 40 miles, hazy
6-hr Max temp: 85F
6-hr Min temp: 64F
6-hr Precip: 0.00 ins.
BHO SA 1755 35 SCT 150 SCT 250 -SCT 40 196/83/66/1903/011/ HAZY
WND LGT/ 8/251 58014 10085 20064

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SUMMARY FOR SATURDAY, SEPTEMBER 3, 2022

TEMPERATURE (DEGREES F)
MAX…….80   NORMAL…..77
MIN…….59   NORMAL…..60
MEAN……70   NORMAL…..68

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………+2
TOTAL DEPARTURE FOR THE MONTH…………………-4 [-1.5 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….0  DEPARTURE……..-1
TOTAL HEATING UNITS FOR THE MONTH…………….2  DEPARTURE……..-1
TOTAL HEATING UNITS FOR THE SEASON……………2  DEPARTURE…….-19
TOTAL HEATING UNITS LAST SEASON TO DATE………36  DEPARTURE…….-34

COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………….5  DEPARTURE……..+1
TOTAL COOLING UNITS FOR THE MONTH…………….9  DEPARTURE……..-5
TOTAL COOLING UNITS FOR THE SEASON………….845  DEPARTURE……+235
TOTAL COOLING UNITS LAST SEASON TO DATE……..652  DEPARTURE……+193

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….23 S   @  6:03 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..24     @  6:03 P.M.
DAVIS #2 ………………29 S   @  5:56 P.M.
RMY #2 (Instantaneous)…..24 S   @  6:03 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………………18 S   @  7:08 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..18     @  5:58 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………19 S   @  7:08 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..19 SSW @  5:58 P.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………8.8 SSW [211 total miles] VECTOR #2……………….9.5
DAVIS #2………………..9.4 SSW
RMY #2………………….9.7 SSW
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……..0.00 DEPARTURE…..-0.12
TOTAL PRECIPITATION FOR THE MONTH…………..0.00 DEPARTURE…..-0.34
TOTAL PRECIPITATION FOR THE YEAR…………..23.58 DEPARTURE….-11.37

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PRELIMINARY CLIMATE SUMMARY FOR AUGUST 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

8/1   85/66/76/+3/0.05/494/57             24 S   AERO N/A    RMY 26
8/2   93/66/80/+7/0.00/588/68             27 WSW AERO N/A    RMY 29
8/3   88/68/78/+5/0.00/836/97             22 NNW AERO N/A    RMY 23
8/4   96/68/82/+9/0.00/808/94             29 SSW AERO N/A    RMY 31
8/5   96/72/84/+11/0.01/438/51            42 NW  AERO N/A    RMY 42 TSTM
8/6   95/72/84/+11/0.00/822/96            30 SSW AERO N/A    RMY 31
8/7   96/73/85/+12/0.08/589/69            36 SW  AERO N/A    RMY 38 TSTM
8/8   97/75/86/+14/T/740/87               37 WSW AERO N/A    RMY 39
8/9   97/63/80/+8/0.23/365/43             33 NW  AERO N/A    RMY 34 TSTM
8/10  76/62/69/-3/0.03/347/41             22 NE  AERO N/A    RMY 22
8/11  79/65/72/0/T/160/19                 18 SSW AERO N/A    RMY 18
8/12  83/63/73/+1/0.00/698/83             21 NW  AERO N/A    RMY 22
8/13  77/58/68/-4/0.00/512/61             20 NE  AERO N/A    RMY 19
8/14  84/58/71/-1/0.00/661/79             24 SSE AERO N/A    RMY 24
8/15  83/61/72/0/0.00/726/87              21 ENE AERO N/A    RMY 21
8/16  77/61/69/-3/T/566/68                28 ENE AERO N/A    RMY 30
8/17  77/61/69/-3/0.03/182/22             30 ENE AERO N/A    RMY 30
8/18  83/61/72/+1/0.00/661/80             44 NW  AERO N/A    RMY 46
8/19  91/62/77/+6/0.00/807/98             25 WNW AERO N/A    RMY 25
8/20  94/69/82/+11/0.00/411/50            30 SSW AERO N/A    RMY 32
8/21  87/65/76/+5/0.00/589/72             26 SSW AERO N/A    RMY 28
8/22  72/64/68/-3/0.80/000/00             17 E   AERO N/A    RMY 17
8/23  74/65/70/-1/0.06/024/03             21 ESE AERO N/A    RMY 21 TSTM
8/24  87/63/75/+4/0.00/583/72             19 WNW AERO N/A    RMY 18
8/25  88/67/78/+8/0.00/590/73             23 S   AERO N/A    RMY 23
8/26  88/65/77/+7/0.71/483/60             40 WNW AERO N/A    RMY 42 TSTM
8/27  78/64/71/+1/0.00/569/71             20 N   AERO N/A    RMY 20
8/28  80/63/72/+2/0.00/583/73             22 SSE AERO N/A    RMY 22
8/29  88/61/75/+5/0.00/662/83             30 SSW AERO N/A    RMY 31
8/30  89/69/79/+10/0.00/659/83            34 S   AERO N/A    RMY 35
8/31  83/65/74/+5/0.39/634/80             33 WNW AERO N/A    RMY 33 TSTM

DAILY RECORDS

08/04/2022: NEW HIGH MAXIMUM TEMPERATURE RECORD OF 96F,
PREVIOUS RECORD WAS 95F SET IN 1928.

08/06/2022: TIED RECORD HIGH MAXIMUM OF 95F, ALSO SET IN 1931
TIED RECORD HIGH MINIMUM OF 72F, ALSO SET IN 1918 AND 1924

08/07/2022: NEW HIGH MAXIMUM TEMPERATURE RECORD OF 96F,
PREVIOUS RECORD WAS 95F SET IN 1924
TIED RECORD HIGH MINIMUM OF 73F, ALSO SET IN 2018

08/08/2022: NEW HIGH MAXIMUM TEMPERATURE RECORD OF 97F,
PREVIOUS RECORD WAS 93F SET IN 1909 AND 1949
NEW HIGH MINIMUM TEMPERATURE RECORD OF 75F,
PREVIOUS RECORD WAS 74F SET IN 2001

08/20/2022: NEW HIGH MAXIMUM TEMPERATURE RECORD OF 94F,
PREVIOUS RECORD WAS 93F SET IN 1937

 

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/…/..            36 WNW  AERO N/A    RMY 37
9/2   73/53/63/-6/0.00/…/..           19 N    AERO N/A    RMY 19
9/3   80/59/70/+2/0.00/…/..           23 S    AERO N/A    RMY 24

9/4   The low since midnight is 61F, the daily normal low is 59F

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)

RECORDS FOR SEPTEMBER 4
HIGH 90F IN 1953, 1973
LOW 46F IN 1987
PRECIP 3.22 INCHES IN 1922
PEAK GUST 47 MPH SE IN 1966

RECORDS FOR SEPTEMBER 5
HIGH 90F IN 1971
LOW 45F IN 1906
PRECIP 1.37 INCHES IN 1907
PEAK GUST 46 MPH NW IN 1994

TODAY’S REPORT PREPARED BY: Matt Douglas