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Tuesday, August 23, 2016

August 23, 2016

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY TUESDAY, AUGUST…

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

DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, AUGUST 23, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME

HIGH PRESSURE BRINGS IN COOL, DRY CONDITIONS

Skies have been mostly sunny and humidity has been low with high pressure
over the area. Dew points measured in the upper 40s and relative humidity
decreased to 34% by the 1:00PM EST observation. Temperatures remained cooler
than previous days, only reaching 78F by 1:00PM. This morning’s overnight
low of 54F has been the lowest temperature this month. Yesterday was the
first day cooler than normal since the 3rd of August.

7 A.M.
Weather: Sky clear
Temperature: 60F; Dew Point: 49F; Wind: WNW at 7 kts
Sea-level pressure: 30.28 ins. Hg, rising, then more slowly
Visibility: 70 miles
6-hr Max temp: 60F
6-hr Min temp: 54F
24-hr precip: 0.00 in.
BHO SA 1155 CLR 70 253/60/49/3007/028/ SKC/ 8/000 51019 10060 20054

10 A.M.
Weather: Few cumulus E-SE and SW-NW
Temperature: 71F; Dew Point: 46F; Wind: WNW at 5 kts,
Wind: Light and variable
Sea-level pressure: 30.30 ins. Hg, rising, then steady
Visibility: 70 miles
BHO SA 1455 CLR 70 260/71/46/2905/030/ FEW CU E-SE AND SW-NW WND L/V/
8/100 50007

1 P.M.
Weather: Few cumulus SW-N
Temperature: 78F; Dew Point: 47F; Wind: WSW at 7G15 kts,
Wind Direction: Variable S-WNW
Sea-level pressure: 30.27 ins. Hg, falling, then more quickly
Visibility: 70 miles
6-hr Max temp: 78F
6-hr Min temp: 60F
BHO SA 1755 CLR 70 250/78/47/2407G15/027/ FEW CU SW-N WND 18V30/ 8/100
56010 10078 20060

SUMMARY FOR MONDAY, AUGUST 22, 2016

TEMPERATURE (DEGREES F)
MAX…..78   NORMAL…..78
MIN…..59   NORMAL…..61
MEAN….69   NORMAL…..70

DEPARTURE FROM 30-YEAR NORMAL……………………-1
TOTAL DEPARTURE FOR THE MONTH…………………..+96 [+4.2 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………4   DEPARTURE……….-1
TOTAL COOLING UNITS FOR THE MONTH………….233   DEPARTURE………+89
TOTAL COOLING UNITS FOR THE SEASON…………707   DEPARTURE……..+212
TOTAL COOLING UNITS LAST SEASON TO DATE…….597   DIFFERENCE…….+110

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….31 NW  AT  6:18 P.M.
AEROVANE………………..29 NW  AT  6:17 P.M.
ASOS……………………32 NW  AT  3:35 P.M.
DAVIS…………………..31 WNW AT  2:38 P.M.  RMY 32
FASTEST MILE FOR YESTERDAY…………………23 NW  AT  6:17 P.M.*
MAXIMUM 2-MINUTE ASOS AVERAGE………………23 NW  AT  3:36 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..23 WNW AT  3:35 P.M.
AVERAGE WIND SPEED AND DIRECTION………….14.0 WNW
ASOS………………….13.3
DAVIS…………………11.9 WNW [290 Deg.] * Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE……-0.12
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….1.53  DEPARTURE……-1.47
ASOS…………..1.52
TOTAL PRECIPITATION FOR THE YEAR……….24.72  DEPARTURE……-9.27
ASOS………….25.03

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

8/1  75/65/70/-2/0.02/320/37                 21 NE  AERO 20 ENE RMY 20
8/2  71/63/67/-5/0.12/000/00                 16 ENE AERO 16 ENE RMY 16
8/3  81/60/71/-1/0.00/603/70                 18 S   AERO 16 S   RMY 17
8/4  86/61/74/+2/0.00/833/97                 23 S   AERO 22 S   RMY 17
8/5  87/61/74/+2/0.00/823/96                 29 S   AERO 29 S   RMY 30
8/6  88/67/78/+6/T/419/49                    24 SSW AERO 23 SSW RMY 23
8/7  89/65/77/+5/0.00/784/92                 26 WNW AERO 25 WNW RMY 26
8/8  87/63/75/+3/0.00/816/96                 23 W   AERO 21 W   RMY 22
8/9  90/65/78/+6/0.00/789/93                 25 SSW AERO 24 SSW RMY 25
8/10 76/66/71/+0/0.28/017/02                 30 SSW AERO 31 SSW RMY 33
8/11 93/73/83/+12/T/666/79                   22 SSW AERO 21 SSW RMY 22
8/12 95/74/85/+14/0.00/487/58                30 SW  AERO 30 SW  RMY 31
8/13 77/67/72/+1/0.16/…/..                 25 NNW AERO 36 NNW RMY N/A TSTM
8/14 94/69/82/+11/0.39/…/..                39 SSW AERO 40 SSW RMY N/A TSTM
8/15 89/68/79/+8/0.00/…/..                 25 W   AERO 24 W   RMY 28
8/16 83/69/76/+5/0.02/…/..                 31 S   AERO 30 S   RMY N/A
8/17 84/68/76/+5/0.00/…/..                 38 W*  AERO 35 W   RMY 39
8/18 89/65/77/+6/T/…/..                    22 SW  AERO 20 SW  RMY 21
8/19 86/68/77/+7/0.00/…/..                 17 S   AERO 16 SSE RMY 17
8/20 86/65/76/+6/0.00/…/..                 25 S   AERO 23 S   RMY 25
8/21 87/63/75/+5/0.54/…/..                 25 S   AERO 22 SSE RMY N/A
8/22 78/59/69/-1/0.00/…/..                 31 NW  AERO 29 NW  RMY 32

8/23 Low temp since midnight is 54F; normal low is now 61F

DAILY RECORDS FOR AUGUST 2016
8/11/16: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 73F,
TIES PREVIOUS RECORD SET IN 1900 AND 1988

8/12/16: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 74F,
TIES PREVIOUS RECORD SET IN 1988

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

RECORDS FOR AUGUST 23
HIGH 88F IN 1918, 1947, 1949, 1996
LOW 45F IN 1923
PRECIP 2.09 INCHES IN 2010
PEAK GUST 60e MPH NW IN 1940

RECORDS FOR AUGUST 24
HIGH 92F IN 1947
LOW 43F IN 1971
PRECIP 2.40 INCHES IN 2010
PEAK GUST 54 MPH W IN 1986

TODAY’S REPORT PREPARED BY: Cecilia Borries-Strigle and Lizzy Suzedell

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Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
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