Friday, August 27, 2021
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
FRIDAY, AUGUST 27, 2021
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0504E
SUNSET: 1826E
ANOTHER HOT AND HUMID DAY WITH MORE CLOUDS DEVELOPING
IN THE AFTERNOON….
Today was partly cloudy with more cloud cover later on. Wind was light
and variable with an average speed of 5 mph and a max gust of 17 mph
much earlier in the day. Pressure fell overnight, but conditions
remained humid with dew points hanging in the low 70’s and
upper 60’s. It wasn’t the best week for a hike!
Anybody else ready for fall? Please?
The high so far today is 89F, 10 degrees above the daily normal maximum
of 79F. The low so far today is 73F, which is 12 degrees above the daily
normal minimum of 61F.
Today’s Observations:
7 A.M.
Weather: Scattered cirrostratus
Temperature: 76F; Dew Point: 67F; Relative Humidity: 86%
Wind: N @ 9 kts
Sea-level pressure: 1018.6 mb; 30.08 in. Hg; rising then steady
Visibility: 25 miles, hazy
6-hr Max temp: 76F
6-hr Min temp: 73F
24-hr Precip: 0.00 ins.
BHO SA 1155 250 SCT 25 186/76/71/0109/008/ HAZY/ 8/006 51007 10076
20073
10 A.M.
Weather: Scattered cirrostratus
Temperature: 85F; Dew Point: 70F; Relative Humidity: 60%
Wind: NE @ 2 kts, light and variable
Sea-level pressure: 1019.4 mb; 30.11 in Hg; falling then rising
Visibility: 50 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 250 SCT 50 194/85/70/0402/010/ WND L/V/ 8/006 53008
1 P.M.
Weather: Scattered altocumulus, broken cirrostratus, few cumulus
Temperature: 87F, Dew point: 69F; Relative Humidity: 56%
Wind: E @ 7 kts
Sea-level pressure: 1019.5 mb; 30.11 in Hg; rising then falling
Visibility: 50 miles
6-hr Max temp: 89F
6-hr Min temp: 76F
6-hr Precip: 0.00 ins.
BHO SA 1755 90 SCT 250 BKN 50 193/87/69/0907/010/ FEW CU ALQDS/ 8/186
55001 10089 20076
SUMMARY FOR THURSDAY, AUGUST 26, 2021
TEMPERATURE (DEGREES F)
MAX…….92 NORMAL…..79
MIN…….72 NORMAL…..61
MEAN……82 NORMAL…..70
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………..+10
TOTAL DEPARTURE FOR THE MONTH…………………..+58 [+2.0 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY…………….0 DEPARTURE……..-1
TOTAL HEATING UNITS FOR THE MONTH…………….0 DEPARTURE……..-8
TOTAL HEATING UNITS FOR THE SEASON…………..27 DEPARTURE…….+13
TOTAL HEATING UNITS LAST SEASON TO DATE……….1 DEPARTURE…….+28
COOLING DEGREE DAYS (SEASON: JAN 2021 THRU DEC 2021)
TOTAL COOLING UNITS FOR YESTERDAY……………15 DEPARTURE……..+9
TOTAL COOLING UNITS FOR THE MONTH…………..236 DEPARTURE…….+53
TOTAL COOLING UNITS FOR THE SEASON………….615 DEPARTURE…….+45
TOTAL COOLING UNITS LAST SEASON TO DATE……..746 DEPARTURE……-131
PEAK WIND GUST (MPH):
Official……………….19 WSW @ 10:39 P.M.
AEROVANE (south tower)…..18 WSW @ 10:40 P.M.
VECTOR #2 (south tower)….20 @ 10:39 P.M.
DAVIS #2 (south tower)…..18 WSW @ 10:14 P.M.
ASOS………..OUT OF SERVICE D/T RENOVATIONS
VECTOR #1……OUT OF SERVICE D/T RENOVATIONS
DAVIS #1…….OUT OF SERVICE D/T RENOVATIONS
RMY…………OUT OF SERVICE D/T RENOVATIONS
MERLIN………OUT OF SERVICE D/T RENOVATIONS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………12 WSW @ 10:42 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..14 @ 10:04 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………14 WSW @ 10:15 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE…….OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE…OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE..OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE RMY AVERAGE……..OUT OF SERVICE D/T RENOVATIONS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….7.2 WSW [173 total miles]
VECTOR #2……………..8.3
DAVIS #2………………8.1 W
RMY……………..OUT OF SERVICE D/T RENOVATIONS
ASOS…………….OUT OF SERVICE D/T RENOVATIONS
VECTOR #1………..OUT OF SERVICE D/T RENOVATIONS
DAVIS #1…………OUT OF SERVICE D/T RENOVATIONS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…….0.00 DEPARTURE….-0.12
TOTAL PRECIPITATION FOR THE MONTH………….5.35 DEPARTURE….+2.03
TOTAL PRECIPITATION FOR THE YEAR………….40.32 DEPARTURE….+6.56
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 77/58/68/-5/T/589/68 23 SSW AERO 24 SSW RMY N/A
08/02 78/61/70/-3/T/821/95 28 WNW AERO 28 WNW RMY N/A
08/03 76/60/68/-5/0.00/302/35 15 N AERO 16 N RMY N/A
08/04 75/61/68/-5/0.71/077/09 21 ESE AERO 21 ESE RMY N/A
08/05 68/61/65/-8/1.68/000/00 28 NE AERO 28 NE RMY N/A
08/06 85/62/74/+1/0.00/727/85 19 S AERO 20 WSW RMY N/A
08/07 88/66/77/+4/0.00/520/61 23 SW AERO 23 SW RMY N/A
08/08 80/67/74/+2/T/128/15 16 SW AERO 16 WNW RMY N/A
08/09 75/64/70/-2/0.25/076/09 22 ENE AERO 21 NE RMY N/A
08/10 78/63/71/-1/0.12/203/24 19 S AERO 20 S RMY N/A
08/11 89/70/80/+8/0.00/667/79 29 SSW AERO 28 SSW RMY N/A
08/12 91/71/81/+9/T/580/69 36 WSW AERO 37 WSW RMY N/A TSTM
08/13 92/73/83/+11/0.00/696/83 18 WSW AERO 18 WSW RMY N/A
08/14 87/69/78/+6/T/601/72 25 W AERO 25 NNW RMY N/A
08/15 80/62/71/-1/0.00/800/96 19 NNW AERO 20 NNW RMY N/A
08/16 78/59/69/-3/0.00/564/68 15 S AERO 15 S RMY N/A
08/17 82/63/73/1/0.00/555/67 22 SSW AERO 23 SSW RMY N/A
08/18 86/66/76/+5/0.00/338/41 21 SSW AERO 22 SSW RMY N/A
08/19 81/69/75/+4/0.62/222/27 41 S AERO 43 S RMY N/A
08/20 78/70/74/+3/0.01/…/.. 21 WSW AERO N/A RMY N/A
08/21 86/69/78/+7/0.00/…/.. 17 S AERO 17 S RMY N/A
08/22 74/66/70/-1/0.78/…/.. 47 ESE AERO 48 ESE RMY N/A
08/23 83/68/76/+5/1.17/…/.. 25 SSE AERO 26 SSE RMY N/A TSTM
08/24 86/67/77/+6/0.01/…/.. 21 NNW AERO 21 NNW RMY N/A
08/25 89/70/80/+10/…./…/.. 17 SW AERO 18 SW RMY N/A
08/26 92/72/82/+12/…./…/.. 19 WSW AERO 18 WSW RMY N/A
08/27 The low since midnight is 73F, the daily normal low is 61F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
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
RECORDS FOR AUGUST 28
HIGH 95F IN 1948
LOW 43F IN 1885
PRECIP 1.80 INCHES IN 1922
PEAK GUST 87 MPH SSE IN 1971 (DORIA)
TODAY’S REPORT PREPARED BY: Benjamin Turner
