Sunday, August 30, 2015
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, AUGUST 30, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME
A FOURTH CONSECUTIVE BEAUTIFUL DRY WEATHER LATE AUGUST DAY
TEMPERATURES AVERAGED RIGHT ON NORMAL PAST TWO DAYS
LONG SPELL OF VERY WARM TO HOT HUMID WEATHER ENDED 26TH
Today was a fourth consecutive day with temperatures running
very close to normal for late August. This came after the
days August 12-26 were all above normal except for two.
Hazy conditions persisted through all 3 observation times despite
dropping humidity levels as temperatures warmed up today into the
mid 80’s. Clouds began to move in by the 1 o’clock observation
creating mostly cloudy conditions as the air pressure began to drop
during the afternoon.
Today’s Observations:
7 A.M.
Weather: Scattered Altocumulus, Broken Cirrus
Temperature: 66F; Dew Point: 64F; Wind: WSW at 8 kts,
Sea-level pressure: 30.08 ins. Hg, falling then rising
Visibility: 15 miles, haze
6-hr Max temp: 66F
6-hr Min temp: 65F
24-hr precip: 0.00 ins
BHO SA 1155 75 SCT E225 BKN 15 187/66/64/2508/008/ HAZY/
8/032 53005 10066 20065
10 A.M.
Weather: Scattered cumulus, thin broken cirrus, few lower cirrus
Temperature: 79F; Dew Point 64F; Wind: W at 6 kts
Wind: Light
Sea-level pressure: 30.08 ins. Hg, steady
Visibility: 35 miles, haze
BHO SA 1455 250 SCT 35 187/79/64/2406/008/ HAZY WND LGT/
8/002 54000
1 P.M.
Weather: Scattered Altocumulus, Broken Cirrostratus
Temperature: 86F; Dew Point: 60F; Wind: W at 15G21 kts
Sea-level pressure: 30.04 ins. Hg, steady then falling
Visibility: 35 miles, haze
6-hr Max temp: 86F
6-hr Min temp: 66F
BHO SA 1755 65 SCT E250 BKN 35 174/86/60/2815G21/004/ HAZY
8/085 58013 10086 20066
SUMMARY FOR SATURDAY, AUGUST 29, 2015
TEMPERATURE (DEGREES F)
MAX…..81 NORMAL…..77
MIN…..60 NORMAL…..60
MEAN….71 NORMAL…..69
DEPARTURE FROM 30-YEAR NORMAL……………………+2
TOTAL DEPARTURE FOR THE MONTH…………………..+81 [+2.6 DEGREES/DAY]
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………6 DEPARTURE………+2
TOTAL COOLING UNITS FOR THE MONTH………….248 DEPARTURE………+70
TOTAL COOLING UNITS FOR THE SEASON…………642 DEPARTURE……..+113
TOTAL COOLING UNITS LAST SEASON TO DATE…….470 DIFFERENCE…….+172
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….21 WSW AT 12:52 P.M.
ASOS……………………20 SW AT 11:59 A.M.
DAVIS…………………..20 WSW AT 1:50 P.M. RMY 21
FASTEST MILE FOR YESTERDAY…………………13 SW AT 11:08 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………14 SW AT 11:17 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..13 SW AT 2:01 A.M.
AVERAGE WIND SPEED AND DIRECTION……………8.7 W
ASOS……………………9.4
DAVIS…………………. 7.5 W [272 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………..2.90 DEPARTURE…..-0.91
ASOS…………..2.88
TOTAL PRECIPITATION FOR THE YEAR………..30.26 DEPARTURE…..-4.54
ASOS……………N/A ***
*** ASOS annual total not available due to erroneous readings
PRELIMINARY CLIMATE SUMMARY FOR AUGUST CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/RMY 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
8/1 88/68/78/+6/0.06/729/84 28 WNW RMY N/A
8/2 86/62/74/+2/0.00/865/100 24 SW RMY N/A
8/3 89/68/79/+7/0.00/690/80 31 S RMY N/A
8/4 86/66/76/+4/0.31/422/49 45 W RMY 50 TSTM
8/5 84/64/74/+2/0.00/765/89 28 WNW RMY 27
8/6 80/59/70/-2/0.00/685/80 22 W RMY 21
8/7 78/61/70/-2/0.00/845/99 20 ESE RMY 18
8/8 77/58/68/-4/0.00/741/87 18 E RMY N/A
8/9 72/59/66/-6/T/458/54 27 NNE RMY 26
8/10 84/58/71/0/0.00/830/98 28 S RMY N/A
8/11 70/63/67/-4/0.52/000/00 32 SSE RMY 35
8/12 83/65/74/+3/0.00/766/91 22 W RMY 20
8/13 83/62/73/+2/0.00/832/99 18 WNW RMY 18
8/14 86/63/75/+4/0.00/837/100 21 S RMY 23
8/15 91/66/79/+8/…./534/64 38 W RMY 41 TSTM
8/16 87/65/76/+5/…./774/93 16 W RMY N/A
8/17 90/70/80/+9/0.00/805/97 17 W RMY 18
8/18 92/70/91/+10/0.27/546/66 31 W RMY 32 TSTM
8/19 87/69/78/+8/0.00/775/94 23 S RMY 24
8/20 85/70/78/+8/0.00/723/88 22 ESE RMY 22
8/21 82/69/76/+6/0.31/98/12 21 S RMY 23
8/22 73/66/70/0/T/…/.. 18 ENE RMY 16
8/23 70/66/68/-2/0.18/000/00 20 ENE RMY 18
8/24 78/67/73/+3/…./…/.. 18 SSW RMY 19
8/25 85/68/77/+8/…./…/.. 22 S RMY 22
8/26 82/64/73/+4/…./…/.. 21 NW RMY 22
8/27 79/59/69/+0/0.00/…/.. 22 W RMY 23
8/28 80/58/69/+0/0.00/…/.. 15 NW RMY 15
8/29 81/60/70/+2/0.00/…/.. 21 WSW RMY 21
8/30 low since midnight is 65F; normal low is now 60F
DAILY RECORDS FOR AUGUST 2015
None so far.
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: Robert Millette
