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Thursday, August 29, 2019

August 29, 2019

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY THURSDAY, 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
THURSDAY, AUGUST 29, 2019
ALL TIMES ARE IN EASTERN STANDARD TIME

GRADUALLY CLEARING CONDITIONS FOLLOWING
LAST NIGHT’S RAIN….

Fog that limited visibility to a 1/2 mile this
morning dissipated quickly, leading to a nice
day with abundant sunshine in the afternoon.
Average visibility following the 7 A.M. observation
was 75 miles. Wind has been northwesterly, increasing
as the day went on. The peak gust so far is 25 mph,
occurring after 3 P.M. Despite last night’s rainfall
amounting to 0.81 inches, Blue Hill is still -1.88
inches below normal for the month of August.
The high so far today is 80F, 3 degrees above
the daily normal maximum of 77F. The low since
midnight is 64F, 4 degrees above the average
daily minimum of 60F.

Today’s Observations:

7 A.M.
Weather: Broken altostratus
Temperature: 65F; Dew Point: 65F; Wind: NW at 9 kts
Sea-level pressure: 29.80 ins. Hg, steady
Visibility: 1/2 miles, fog
6-hr Max temp: 69F
6-hr Min temp: 64F
24-hr Precip: 0.81 ins.
BHO SA 1155 –X E65 BKN 1/2F 092/65/65/3209/980/ 8/4//
70081 50005 10069 20064

10 A.M.
Weather: Broken altostratus, broken cirrostratus
Temperature: 71F; Dew Point: 63F; Wind: NNW at 7G14 kts
Sea-level pressure: 29.84 ins. Hg, falling steadily
Visibility: 75 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 E120 BKN 250 BKN 75 104/71/63/3407G14/984/
FEW DSNT CU ALQDS/ 8/432 53012

1 P.M.
Weather: Scattered cumulus, scattered altostratus,
broken cirrostratus
Temperature: 80F; Dew Point: 64F; Wind: WNW at 5 kts,
Wind: Light
Sea-level pressure: 29.82 ins. Hg, falling steadily
Visibility: 75 miles
6-hr Max temp: 80F
6-hr Min temp: 64F
6-hr Precip: 0.00 ins.
BHO SA 1755 30 SCT 110 SCT E250 BKN 75 999/80/64/3005/982/
WND LGT/ 8/188 58005 10080 20064

SUMMARY FOR WEDNESDAY, AUGUST 28, 2019

TEMPERATURE (DEGREES F)
MAX…..78   NORMAL…..77
MIN…..59   NORMAL…..60
MEAN….69   NORMAL…..69

DEPARTURE FROM 30-YEAR NORMAL…………………..0
TOTAL DEPARTURE FOR THE MONTH…………………+19 [+0.5 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………4   DEPARTURE……….0
TOTAL COOLING UNITS FOR THE MONTH………….191   DEPARTURE……..+18
TOTAL COOLING UNITS FOR THE SEASON…………602   DEPARTURE……..+78
TOTAL COOLING UNITS LAST SEASON TO DATE…….719   DEPARTURE…….-117

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………..21 SSE AT  5:36 P.M.
AERO…………………….18 SSE AT  5:06 P.M.
ASOS…………………….21 S   AT  5:07 P.M.
DAVIS……………………24 SE  AT  5:08 P.M. RMY 20
FASTEST MILE FOR YESTERDAY………………….15 SSE AT  5:57 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….15 S   AT  5:09 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………17 SE  AT  6:06 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..7.6 SSE
ASOS…………………..7.9
DAVIS………………….8.7 SSE [130 deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.81  DEPARTURE……+0.70
ASOS…………..0.79
TOTAL PRECIPITATION FOR THE MONTH……….1.83  DEPARTURE……-1.88
ASOS…………..1.76
TOTAL PRECIPITATION FOR THE YEAR……….37.15  DEPARTURE……+1.76
ASOS………….37.04

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

8/01  84/66/75/+3/0.00/755/87               18 NNW AERO 20 NW  RMY 17
8/02  83/61/72/0/0.00/804/93                18 WSW AERO 18 WSW RMY 18
8/03  84/66/75/+3/0.00/302/35               25 SW  AERO 26 SW  RMY 25
8/04  83/66/75/+3/0.00/732/85               21 NE  AERO 23 SW  RMY 25
8/05  81/58/70/-2/0.00/842/98               20 S   AERO 18 S   RMY 19
8/06  79/63/71/-1/0.00/282/33               15 S   AERO 14 S   RMY 17
8/07  82/66/74/+2/…./367/43               32 SSW AERO 35 SSW RMY 35
8/08  84/67/76/+4/…./588/69               30 SW  AERO 24 WNW RMY 29
8/09  82/63/73/+1/…./815/96               28 NW  AERO 25 NW  RMY 26
8/10  78/59/69/-2/…./720/85               32 NW  AERO 28 NW  RMY 28
8/11  78/55/67/-4/0.00/734/87               28 W   AERO 25 W   RMY 28
8/12  82/60/71/0/0.00/749/89                25 W   AERO 23 W   RMY 26
8/13  77/66/72/+1/0.02/059/07               25 W   AERO 24 WSW RMY 24
8/14  75/62/69/-2/…./452/54               24 ENE AERO 22 ENE RMY 22
8/15  77/59/68/-3/…./568/68               17 ESE AERO 15 SSE RMY 16
8/16  78/61/70/-1/…./732/88                20 E   AERO 17 ESE RMY 18
8/17  78/67/73/+2/…./099/12                14 SE  AERO 15 SE  RMY 15
8/18  88/70/79/+8/…./529/64               18 SSW AERO 18 SSW RMY 21
8/19  92/69/81/+11/…./…/..              25 WSW AERO 23 WSW RMY 25
8/20  87/66/77/+7/…./…/..               18 W   AERO 14 WSW RMY N/A
8/21  85/68/77/+7/0.12/…/..               33 SW  AERO 32 SW  RMY 33
8/22  88/68/78/+8/0.00/…/..               25 W   AERO 21 W   RMY 26
8/23  78/60/69/-1/0.04/…/..               23 N   AERO 18 N   RMY 24
8/24  72/55/64/-6/0.00/…/..               25 ENE AERO 21 ENE RMY 22
8/25  66/56/61/-8/0.00/…/..               31 ENE AERO 25 ENE RMY 29
8/26  71/51/61/-8/0.00/…/..               25 NE  AERO 21 NE  RMY 25
8/27  77/54/66/-3/0.00/…/..               18 SSW AERO 18 SSW RMY 17
8/28  78/59/69/0/…./…/..                21 SSE AERO 18 SSE RMY 20

8/29 Low temp since midnight is 64F; normal low is 60F

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

RECORDS FOR AUGUST 29
HIGH 95F IN 1953
LOW 41F IN 1982
PRECIP 2.88 INCHES IN 1962
PEAK GUST 70e MPH S IN 1949

RECORDS FOR AUGUST 30
HIGH 94F IN 1953
LOW 39F IN 1965
PRECIP 2.75 INCHES IN 1936
PEAK GUST 43 MPH NW IN 1965

TODAY’S REPORT PREPARED BY: Benjamin Turner

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Blue Hill Observatory & Science Center · Legal

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Please read the full Policy before accessing Observatory data · Effective January 1, 2025

Notice: By accessing, downloading, or using any Blue Hill Observatory data or services, you unconditionally accept and agree to be bound by this Policy in its entirety. If you do not agree, you may not access or use Observatory data.
Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
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