Friday, August 30, 2019

| August 30, 2019 | Reply

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

DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, AUGUST 30, 2019
ALL TIMES ARE IN EASTERN STANDARD TIME

FAIR WEATHER WITH GOOD VISIBILITY TO
START OFF THE LABOR DAY WEEKEND….

We saw an average visibility of 75 miles today,
with dry and almost clear conditions. Wind remained
southwest at an average of 15 mph. The highest gust
seen so far today is 28 mph. Coming up on the end
of the month, Blue Hill has seen rainfall 2 inches
below normal, and temperatures slightly above
seasonal averages. The high so far today is 84F,
7 degrees above the daily normal maximum of 77F.
The low since midnight is 59F, a degree above
the average daily minimum of 60F.

Today’s Observations:

7 A.M.
Weather: Clear
Temperature: 65F; Dew Point: 54F; Wind: SW at 9 kts
Sea-level pressure: 30.01 ins. Hg, rising steadily
Visibility: 80 miles
6-hr Max temp: 65F
6-hr Min temp: 59F
24-hr Precip: 0.00 ins.
BHO SA 1155 CLR 80 164/65/54/2309/001/ 51011 10065
20059

10 A.M.
Weather: Clear, with a single distant cumulus cloud
to the north
Temperature: 77F; Dew Point: 56F; Wind: SW at 15G23 kts
Sea-level pressure: 29.99 ins. Hg, falling steadily
Visibility: 75 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 CLR 75 158/77/56/2215G23/999/ DSNT CU N/
8/100 58006

1 P.M.
Weather: Clear, with a few distant cumulus
Temperature: 83F; Dew Point: 59F; Wind: SW at 11G19 kts
Sea-level pressure: 29.96 ins. Hg, falling steadily
Visibility: 75 miles
6-hr Max temp: 84F
6-hr Min temp: 65F
6-hr Precip: 0.00 ins.
BHO SA 1755 CLR 75 150/83/59/2211G19/996/ FEW DSNT
CU ALQDS/ 8/100 56008 10084 20065

SUMMARY FOR THURSDAY, AUGUST 29, 2019

TEMPERATURE (DEGREES F)
MAX…..83   NORMAL…..77
MIN…..63   NORMAL…..60
MEAN….73   NORMAL…..69

DEPARTURE FROM 30-YEAR NORMAL………………….+4
TOTAL DEPARTURE FOR THE MONTH…………………+23 [+0.6 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………8   DEPARTURE………+4
TOTAL COOLING UNITS FOR THE MONTH………….199   DEPARTURE……..+21
TOTAL COOLING UNITS FOR THE SEASON…………610   DEPARTURE……..+81
TOTAL COOLING UNITS LAST SEASON TO DATE…….739   DEPARTURE…….-129

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………..25 WNW AT  7:22 P.M.
AERO…………………….21 WNW AT  7:22 P.M.
ASOS…………………….25 WSW AT  7:22 P.M.
DAVIS……………………24 W   AT  3:39 P.M. RMY 26
FASTEST MILE FOR YESTERDAY………………….18 WNW AT  7:23 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….17 W   AT  3:40 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………17 W   AT  3:40 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..9.5 NW
ASOS…………………..9.2
DAVIS………………….9.9 WNW [304 deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE……-0.11
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….1.83  DEPARTURE……-1.99
ASOS…………..1.76
TOTAL PRECIPITATION FOR THE YEAR……….37.15  DEPARTURE……+2.34
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  83/63/73/+4/…./…/..               25 WNW AERO 21 WNW RMY 26

8/30 Low temp since midnight is 59F; normal low is 60F

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

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

RECORDS FOR AUGUST 31
HIGH 94F IN 1953
LOW 42F IN 1976
PRECIP 2.46 INCHES IN 1954
PEAK GUST 125 MPH SE IN 1954 [CAROL – RECORD FOR MONTH]

TODAY’S REPORT PREPARED BY: Benjamin Turner

Category: Daily Discussions

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