Wednesday, September 7, 2022

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

WEDNESDAY, SEPTEMBER 7, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0516E
SUNSET:  1808E

COOL WITH A STEADY EASTERLY BREEZE AFTER A GOOD RAIN DAY….

Today we observed mostly cloudy skies with a fog that broke up
very shortly after the 7 A.M. observation. That was the moisture
left over from yesterday, where 1.06 inches of rain fell since
7 A.M. This leaves us with an event total of 2.40 inches!

That’s all of the rain for this month so far, giving us a
1.69 inch surplus in comparison to the running total normal
rainfall. The yearly total is boosted to 25.98 inches, bringing
the deficit down to 9.34 inches. It will be interesting to see
how the drought monitor responds, and it’s updated tomorrow.

Visibility reached almost 70 miles at 1 P.M., starting from
20 miles this morning. The summit is experiencing a cool
easterly breeze around 10 mph.

The high so far today is 69F, which is 7 degrees below the
normal maximum of 76F. The low since midnight is 57F, which is
2 degrees below 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 (Matthew Douglas for anybody wondering!)

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Today’s Observations:

7 A.M.
Weather: Overcast stratus
Temperature: 59F; Dew Point: 59F; Relative Humidity: 100%
Wind: ENE @ 7 kts
Sea-level pressure: 1018.6 mb; 30.08 in. Hg: rising, then more rapidly
Visibility: 20 miles, thin fog
6-hr Max temp: 60F
6-hr Min temp: 57F
24-hr Precip: 1.06 ins.
BHO SA 1155 20 OVC 20 186/59/59/0707/008/ THN F ALQDS/ 8/6// 53008
70106 10060 20057

10 A.M.
Weather: Broken stratocumulus, thin overcast cirrus, few
breaks overhead
Temperature: 64F; Dew Point: 57F; Relative Humidity: 78%
Wind: NE @ 8G14 kts
Sea-level pressure: 1017.9 mb; 30.06 in Hg: falling, then more
slowly
Visibility: 50 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 50 BKN 250 -OVC 50 179/64/57/0508G14/006/ FEW BINOVC
OVHD/ 8/501 56007

1 P.M.
Weather: Scattered cumulus and altocumulus, broken cirrus
Temperature: 69F, Dew point: 58F; Relative Humidity: 68%
Wind: E @ 10G14 kts
Sea-level pressure: 1017.2 mb; 30.04 in Hg: falling, then more
rapidly
Visibility: 65 miles
6-hr Max temp: 69F
6-hr Min temp: 58F
6-hr Precip: 0.00 ins.
BHO SA 1755 50 SCT 90 SCT 250 BKN 65 172/69/58/0910G14/004/ 8/272
58007 10069 20058

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SUMMARY FOR TUESDAY, SEPTEMBER 6, 2022

TEMPERATURE (DEGREES F)
MAX…….63   NORMAL…..76
MIN…….60   NORMAL…..59
MEAN……62   NORMAL…..68

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………-6
TOTAL DEPARTURE FOR THE MONTH…………………-4 [-1.7 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….3  DEPARTURE……..+2
TOTAL HEATING UNITS FOR THE MONTH…………….5  DEPARTURE……..-2
TOTAL HEATING UNITS FOR THE SEASON……………5  DEPARTURE…….-20
TOTAL HEATING UNITS LAST SEASON TO DATE………36  DEPARTURE…….-31

COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………….0  DEPARTURE……..-4
TOTAL COOLING UNITS FOR THE MONTH……………21  DEPARTURE……..-5
TOTAL COOLING UNITS FOR THE SEASON………….857  DEPARTURE……+235
TOTAL COOLING UNITS LAST SEASON TO DATE……..654  DEPARTURE……+197

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….27 NE  @ 11:10 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..28     @ 11:10 P.M.
DAVIS #2 ………………24 ENE @ 11:10 P.M.
RMY #2 (Instantaneous)…..26 NE  @ 11:10 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………………17 NE  @ 11:10 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..18     @ 11:11 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………18 ENE @ 11:12 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 NE  @ 11:11 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………9.7 E [232 total miles] VECTOR #2………………10.1
DAVIS #2……………….10.1 E
RMY #2…………………10.0 ENE
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……..1.06 DEPARTURE…..+0.93
TOTAL PRECIPITATION FOR THE MONTH…………..2.40 DEPARTURE…..+1.69
TOTAL PRECIPITATION FOR THE YEAR…………..25.98 DEPARTURE…..-9.34

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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   86/61/74/+6/0.00/…/..           20 SSW  AERO N/A    RMY 20
9/5   75/60/68/0/0.83/…/..            20 E    AERO N/A    RMY 19
9/6   63/60/62/-6/…./…/..           27 NE   AERO N/A    RMY 26

9/7   The low since midnight is 57F, 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 7
HIGH 92F IN 2007, 2015
LOW 40F IN 1888
PRECIP 2.91 INCHES IN 1891
PEAK GUST 58e MPH W IN 1941

RECORDS FOR SEPTEMBER 8
HIGH 97F IN 2015
LOW 42F IN 1978
PRECIP 1.51 INCHES IN 2011
PEAK GUST 45 MPH S IN 2012

TODAY’S REPORT PREPARED BY: Benjamin Turner