Thursday, August 27, 2015
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, AUGUST 27, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME
DRY, SEASONABLE CONDITIONS TAKE HOLD OF THE REGION
Dew points that were stuck in the 60s and low 70s since
last Friday have finally fallen to the more comfortable range
of the mid 50s. This is the first morning since last Thursday
that has featured clear conditions instead of thick fog.
An overnight low of 59F this morning was just one degree
below the daily normal low for this date.
By today’s 1:00 PM EST observation visibility had improved to
70 miles in all directions with partly sunny conditions. A maximum
of 79F had been reached.
Today’s Observations:
7 A.M.
Weather: Clear, few cumulus distant N-ENE, few cirrus distant
ESE-SSW, few altocumulus distant W-NE
Temperature: 65F; Dew Point: 56F; Wind: WNW at 9 kts,
Sea-level pressure: 30.01 ins. Hg, rising, then more quickly
Visibility: 60 miles, light distant haze in all directions
6-hr Max temp: 65F
6-hr Min temp: 59F
24-hr precip: 0.00 ins
BHO SA 1155 CLR 60 162/65/56/3009/001/ FEW CU DSNT N-ENE FEW CI
DSNT ESE-SSW FEW AC DSNT W-NW LGT DSNT HZ ALQDS/ 8/131 53015
10065 20059
10 A.M.
Weather: Clear, few cirrostratus distant E-SW approaching,
few small cumulus distant SW-NE, few altocumulus distant W-NW
Temperature: 75F; Dew Point 56F; Wind: WNW at 8 kts,
Wind Direction: Varying 270-330 degrees
Sea-level pressure: 30.03 ins. Hg, rising, then more slowly
Visibility: 70 miles, light distant haze in all directions
BHO SA 1455 CLR 70 168/75/56/3008/003/ FEW CS DSNT E-SW
FEW SML CU DSNT SW-NE FEW AC DSNT W-NW LGT DSNT HZ ALQDS
WND 27V33/ 8/135 51006
1 P.M.
Weather: Scattered cumulus, broken cirrus
Temperature: 79F; Dew Point: 57F; Wind: WNW at 10 kts,
Sea-level pressure: 30.00 ins. Hg, falling steadily
Visibility: 70 miles, light distant haze
6-hr Max temp: 79F
6-hr Min temp: 65F
BHO SA 1755 60 SCT E250 BKN 70 159/79/57/2910/000/ LGT DSNT
HZ ALQDS/ 8/102 57009 10079 20065
SUMMARY FOR WEDNESDAY, AUGUST 26, 2015
TEMPERATURE (DEGREES F)
MAX…..82 NORMAL…..78
MIN…..64 NORMAL…..61
MEAN….73 NORMAL…..69
DEPARTURE FROM 30-YEAR NORMAL……………………+4
TOTAL DEPARTURE FOR THE MONTH…………………..+79 [+2.8 DEGREES/DAY]
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………8 DEPARTURE………+3
TOTAL COOLING UNITS FOR THE MONTH………….234 DEPARTURE………+70
TOTAL COOLING UNITS FOR THE SEASON…………628 DEPARTURE……..+113
TOTAL COOLING UNITS LAST SEASON TO DATE…….453 DIFFERENCE…….+175
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….21 NW AT 3:05 P.M.
ASOS……………………22 WNW AT 3:05 P.M.
DAVIS…………………..21 NW AT 3:05 P.M. RMY 22
FASTEST MILE FOR YESTERDAY…………………16 NW AT 3:05 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………15 W AT 5:50 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..14 W AT 1:21 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..8.8 WNW
ASOS…………………..8.4
DAVIS………………….7.8 W [270 deg.]
* Last of several occurrences…
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…..0.00 DEPARTURE…..-0.12
ASOS……………0.00
TOTAL PRECIPITATION FOR THE MONTH………..2.90 DEPARTURE…..-0.58
ASOS…………..2.88
TOTAL PRECIPITATION FOR THE YEAR………..30.26 DEPARTURE…..-4.21
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/…/.. 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/…./…/.. 38 W RMY 41 TSTM
8/16 87/65/76/+5/…./…/.. 16 W RMY N/A
8/17 90/70/80/+9/0.00/…/.. 17 W RMY 18
8/18 92/70/91/+10/0.27/…/.. 31 W RMY 32 TSTM
8/19 87/69/78/+8/0.00/…/.. 23 S RMY 24
8/20 85/70/78/+8/0.00/…/.. 22 ESE RMY 22
8/21 82/69/76/+6/0.31/…/.. 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 low since midnight is 59F; 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 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: Brian Fitzgerald
