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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, AUGUST 26, 2019
ALL TIMES ARE IN EASTERN STANDARD TIME

PARTLY CLOUDY WITH A COOL NORTHEASTERLY 
BREEZE....

We observed a good visibility of 70 miles 
throughout the day. Cloud cover decreased this
morning, with skies being almost clear this 
afternoon save a few cumulus clouds. Wind 
shifted from north to northeast prior to 8 A.M.,
increasing as the day went on. The highest gust 
so far today is around 25 mph. Sea breeze was 
a factor again today, though less significant.
The high so far today is 70F, 8 degrees below 
the daily normal maximum of 78F. The low since 
midnight is 51F, 10 degrees below the average 
daily minimum of 61F. 


Today's Observations:

7 A.M.
Weather: Scattered cumulus, broken altocumulus
Temperature: 57F; Dew Point: 53F; Wind: N at 5 kts
Sea-level pressure: 30.28 ins. Hg, rising, then more rapidly
Visibility: 75 miles
6-hr Max temp: 56F
6-hr Min temp: 51F
24-hr Precip: 0.00 ins.
BHO SA 1155 40 SCT E90 BKN 75 253/57/53/3605/028/ 
VSBY 40 NE-SSE/ 8/870 53015 10056 20051

10 A.M.
Weather: Scattered cumulus
Temperature: 68F; Dew Point: 51F; Wind: ENE at 12G21 kts 
Sea-level pressure: 30.25 ins. Hg, falling steadily
Visibility: 70 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 30 SCT 70 244/68/51/0612G21/025/ 8/100 
56009

1 P.M.
Weather: Clear, few cumulus
Temperature: 70F; Dew Point: 49F; Wind: ENE at 9G20 kts 
Sea-level pressure: 30.25 ins. Hg, rising then falling
Visibility: 70 miles
6-hr Max temp: 70F
6-hr Min temp: 56F
6-hr Precip: 0.00 ins.
BHO SA 1755 CLR 70 243/70/49/0609G20/025/ FEW CU ALQDS/ 
8/100 58001 10070 20056  

SUMMARY FOR SUNDAY, AUGUST 25, 2019 

TEMPERATURE (DEGREES F)
MAX.....66   NORMAL.....78
MIN.....56   NORMAL.....61
MEAN....61   NORMAL.....69

DEPARTURE FROM 30-YEAR NORMAL......................-8
TOTAL DEPARTURE FOR THE MONTH.....................+30 [+1.0 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY...............0   DEPARTURE.........-5
TOTAL COOLING UNITS FOR THE MONTH.............186   DEPARTURE........+27
TOTAL COOLING UNITS FOR THE SEASON............597   DEPARTURE........+87
TOTAL COOLING UNITS LAST SEASON TO DATE.......684   DEPARTURE........-87

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY....................31 ENE AT  1:28 P.M.
                   AERO.........................25 NNE AT  8:22 A.M.
                   ASOS.........................30 ENE AT 12:13 P.M.
                   DAVIS........................30 E   AT  1:25 P.M. RMY 29
FASTEST MILE FOR YESTERDAY......................20 ENE AT  1:28 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE...................20 ENE AT  2:26 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE..................21 ENE AT  1:28 P.M.
AVERAGE WIND SPEED AND DIRECTION.............11.3 NE
                   ASOS......................11.0
                   DAVIS.....................11.5 NE [56 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..........1.02  DEPARTURE......-2.35
                         ASOS..............0.97
TOTAL PRECIPITATION FOR THE YEAR..........36.34  DEPARTURE......+1.98
                         ASOS.............36.25


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 Low temp since midnight is 51F; normal low is 61F


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

RECORDS FOR AUGUST 26
HIGH 96F IN 1900, 1948
LOW 46F IN 1885
PRECIP 5.85 INCHES IN 1924
PEAK GUST 55e MPH NNW IN 1947

RECORDS FOR AUGUST 27
HIGH 99F IN 1948
LOW 44F IN 1885
PRECIP 2.77 INCHES IN 1946
PEAK GUST 48 MPH NW IN 1983

TODAY'S REPORT PREPARED BY: Benjamin Turner