Wednesday, August 5, 2020
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
WEDNESDAY, AUGUST 5, 2020
ALL TIMES ARE IN EASTERN STANDARD TIME
A HOT, YET DRY DAY WITH INCREASING CLOUDS….
Yesterday, the wind continued to ramp up, especially
mid to late afternoon. A peak gust of 67 mph was
measured at 4:06 P.M., being the highest gust
measured. Frequent gusts over 50 mph continued
into the early evening hours.
This wind is the strongest gust at Blue Hill from a
tropical system since 76 mph E on 29 October 2012 due
to Hurricane Sandy.
-Yesterday’s wind section below written by Matt Douglas
Today we observed hazy and hot conditions
following last night’s rain, which totaled
0.21 inches. Conditions were hazy, but the
visibility reached a max of 50 miles at the
10 P.M. observation. Wind was much lower than
yesterday, with a max gust of 25 mph, and
an average speed of 15 mph. The weather was
hot yet enjoyable, with dew points remaining
in the low 60’s, even with a high temperature
of 90F reached this afternoon. This is 9 degrees
above the daily normal high of 81F. The low since
midnight is 68F, which is 5 degrees above the
daily normal low of 63F.
Today’s Observations:
7 A.M.
Weather: Scattered cumulus and altocumulus, broken
cirrostratus
Temperature: 73F; Dew Point: 69F; Relative Humidity: 87%
Wind: SSW at 10 kts
Sea-level pressure: 29.99 ins. Hg: Rising steadily
Visibility: 30 miles, hazy
6-hr Max temp: 73F
6-hr Min temp: 68F
24-hr Precip: 0.21 ins.
BHO SA 1155 20 SCT 140 SCT E250 BKN 30 155/73/69/2110/999/
HAZY/ 8/158 53014 10073 20068
10 A.M.
Weather: Scattered cumulus, broken cirrostratus
Temperature: 84F; Dew Point: 66F; Relative Humidity: 55%
Wind: SSW at 8 kts
Sea-level pressure: 30.01 ins. Hg: falling then rising
Visibility: 50 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 40 SCT E250 BKN 50 161/84/66/2108/001/ 8/108 51006
1 P.M.
Weather: Broken Cumulus
Temperature: 88F; Dew Point: 62F; Relative Humidity: 43%
Wind: SW at 10G20 kts
Sea-level pressure: 29.99 ins. Hg: falling steadily
Visibility: 40 miles
6-hr Max temp: 90F
6-hr Min temp: 73F
6-hr Precip: 0.00 ins.
BHO SA 1755 E50 BKN 40 154/88/62/2310G20/999/ 8/200 58007 10090
20073
SUMMARY FOR TUESDAY, AUGUST 4, 2020
TEMPERATURE (DEGREES F)
MAX…..83 NORMAL…..81
MIN…..71 NORMAL…..63
MEAN….77 NORMAL…..72
DEPARTURE FROM 30-YEAR NORMAL……………..+5
TOTAL DEPARTURE FOR THE MONTH……………..+26 [+6.3 DEGREES/DAY]
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………..12 DEPARTURE……+5
TOTAL COOLING UNITS FOR THE MONTH……………..54 DEPARTURE……+25
TOTAL COOLING UNITS FOR THE SEASON……………541 DEPARTURE…..+161
TOTAL COOLING UNITS LAST SEASON TO DATE……….448 DEPARTURE……+93
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………..67 SSE AT 4:06 P.M.
AERO…………………….71 S AT 4:06 P.M.
ASOS…………………….59 S AT 5:31 P.M.
DAVIS……………………66 SSE AT 4:07 P.M
RMY 70 MERLIN 67
FASTEST MILE FOR YESTERDAY………………….45 S AT 5:41 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….44 S AT 5:41 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………44 S AT 4:50 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..17.5 SSE
ASOS…………………..17.0
DAVIS………………….16.7 S [178 deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.21 DEPARTURE……+0.06
ASOS…………..0.21
TOTAL PRECIPITATION FOR THE MONTH……….0.23 DEPARTURE……-0.37
ASOS…………..0.23
TOTAL PRECIPITATION FOR THE YEAR……….29.30 DEPARTURE……-2.29
ASOS………….30.04
PRELIMINARY CLIMATE SUMMARY FOR JULY 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
07/01 76/63/70/0/0.00/228/25 16 E AERO 14 E RMY 14 TSTM
07/02 86/61/74/+4/0.00/803/88 30 WSW AERO 25 WSW RMY 33
07/03 73/60/67/-4/0.00/091/10 30 NE AERO 28 NE RMY 30
07/04 79/60/70/-1/0.00/565/62 16 S AERO 16 S RMY 16
07/05 83/63/73/+2/0.54/373/41 24 NW AERO 30 NW RMY 26 TSTM
07/06 73/60/67/-4/0.00/482/53 20 ENE AERO 16 NNE RMY 18
07/07 78/60/69/-2/0.00/454/50 25 S AERO 25 S RMY 26
07/08 83/64/74/+2/0.00/227/25 32 SSW AERO 32 SSW RMY 32
07/09 89/70/80/+8/0.00/834/92 24 S AERO 23 S RMY 22
07/10 83/70/77/+5/0.05/109/12 30 SSE AERO 32 SSE RMY N/A
07/11 85/70/78/+6/0.00/614/68 39 S AERO 39 S RMY 38
07/12 86/70/78/+6/0.00/830/92 28 WSW AERO 28 WSW RMY 29
07/13 82/69/76/+4/0.23/306/34 30 SSE AERO 31 SSE RMY 30 TSTM
07/14 78/63/71/-1/0.00/369/41 26 ENE AERO 25 ENE RMY 26
07/15 72/59/66/-6/0.00/539/60 21 NE AERO 21 NE RMY N/A
07/16 73/57/65/-7/0.00/815/91 21 E AERO 21 E RMY 19
07/17 71/57/64/-8/0.19/027/03 24 SSW AERO 24 SSW RMY 25
07/18 89/66/78/+6/0.00/822/92 18 W AERO 17 W RMY 19
07/19 92/69/81/+9/0.00/722/81 28 S AERO 28 S RMY 26
07/20 91/72/82/+10/T/481/54 25 SSW AERO 25 SSW RMY N/A
07/21 88/68/78/+6/0.00/799/90 25 W AERO 25 W RMY 24
07/22 80/67/74/+2/…./275/31 16 ENE AERO M M RMY 16
07/23 88/68/78/+6/0.48/203/23 31 N AERO 32 N RMY 31 TSTM
07/24 81/68/75/+3/0.00/476/54 15 ENE AERO 15 ENE RMY 16
07/25 88/67/78/+6/0.00/845/96 18 W AERO 18 WNW RMY N/A
07/26 89/70/80/+8/0.00/632/72 27 W AERO 28 W RMY 27
07/27 94/72/83/+11/0.00/823/94 23 SW AERO 25 SW RMY N/A
07/28 95/74/85/+13/0.01/…/.. 28 WSW AERO 25 WSW RMY 25
07/29 90/68/79/+7/0.00/…/.. 23 SSW AERO 25 SSW RMY 24
07/30 88/71/80/+8/0.00/…/.. 29 W AERO 28 W RMY 29
07/31 84/69/77/+5/0.00/…/.. 14 ENE AERO 14 ENE RMY 15
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
08/01 87/66/77/+5/0.00/…/.. 18 S AERO 21 S RMY 19
08/02 85/69/77/+5/0.02/…/.. 36 S AERO 37 S RMY 38
08/03 91/75/83/+11/0.00/…/.. 36 WSW AERO 38 SW RMY 36
08/04 83/71/77/+5/0.21/…/.. 67 SSE AERO 71 S RMY 70
08/05 The low since midnight is 68F, the daily normal low is 63F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR AUGUST 5
HIGH 98F IN 1955
LOW 48F IN 1929,1972
PRECIP 3.03 INCHES IN 1893
PEAK GUST 60e MPH SW 1977
RECORDS FOR AUGUST 6
HIGH 95F IN 1931
LOW 48F IN 1934
PRECIP 1.47 INCHES IN 1995
PEAK GUST 44e MPH SSW IN 1940
TODAY’S REPORT PREPARED BY: Benjamin Turner
