Saturday, August 23, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, AUGUST 23, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
COOL, DRY AUGUST CONTINUES
BREEZY NORTHEAST WIND AND HIGH VISIBILITY TODAY
Today is likely to be the 11th straight day of below normal temperatures
here at Blue Hill, though none of those days have been below average by more
than six degrees. This is the longest streak of consecutive below average
days since December 7-18 of last year. Today, we have reached a high
temperature of 71F so far, which is equal to yesterday’s high and still
below the average of 78F. August is running a little over two degrees below
normal so far. Precipitation continues to run well below normal this month,
with our monthly deficit now greater than one and a half inches, and there is
no significant rainfall in sight. Winds have continued to come in from the
NE today, and they have been a little stronger today, averaging about 10mph
with gusts over 20mph. The visibility was a hazy 35 miles at our 7:00 AM
observation, but the haze lifted to provide us with excellent visibility for
the late morning and afternoon, up to 80 miles at times, a rare value for
August.
Today’s Observations:
7 A.M.
Weather: Scattered stratocumulus, scattered altocumulus
Temperature: 63F; Dew Point: 59F; Wind: NNE at 8 kts
Sea-level pressure: 30.13 ins. Hg, rising then rising more slowly
Visibility: 35 miles, distant haze
6-hr max temp: 63F
6-hr min temp: 59F
24-hr precip: 0.00 in.
BHO SA 1155 4 SCT 150 SCT 35 204/63/59/0208/013/ DSNT HZ/ 8/550 51011
10063 20059
10 A.M.
Weather: Scattered stratocumulus, broken altocumulus, few moderate
stratocumulus SW-WNW
Temperature: 69F; Dew Point: 58F; Wind: ENE at 11 kts
Sea-level pressure: 30.14 ins. Hg, rising slightly
Visibility: 80 miles
BHO SA 1455 20 SCT E80 BKN 80 206/69/58/0611/014/ FEW MDT SC SW-WNW/
8/550 53002
1 P.M.
Weather: Scattered stratocumulus, scattered altocumulus, broken altocumulus,
few moderate stratocumulus S
Temperature: 69F; Dew Point: 58F; Wind: NE at 11 kts,
Wind: Direction variable NNE-E
Sea-level pressure: 30.13 ins. Hg, falling slightly
Visibility: 70 miles, light distant haze
6-hr max. temp: 71F
6-hr min. temp: 63F
BHO SA 1755 20 SCT 70 SCT E150 BKN 70 204/69/58/0511/013/ FEW MDT SC S
LGT DSNT HZ WND 02V08/ 8/550 55002 10071 20063
WEATHER SUMMARY FOR FRIDAY, AUGUST 22, 2014
TEMPERATURE (DEGREES F)
MAX…..71 NORMAL…..79
MIN…..60 NORMAL…..61
MEAN….66 NORMAL…..70
DEPARTURE FROM 30-YEAR NORMAL…………………….-4
TOTAL DEPARTURE FOR THE MONTH……………………-45 [-2.2 DEGREES/DAY]
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..1 DEPARTURE………..-4
TOTAL COOLING UNITS FOR THE MONTH………….93 DEPARTURE……….-51
TOTAL COOLING UNITS FOR THE SEASON………..430 DEPARTURE……….-65
TOTAL COOLING UNITS LAST SEASON TO DATE……594 DIFFERENCE……..-164
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………17 NE AT 11:48 A.M.
ASOS…………………..20 NE AT 11:49 A.M.
DAVIS………………….17 ENE AT 11:48 A.M. RMY 19
FASTEST MILE FOR YESTERDAY………………..12 NE AT 12:22 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..14 ENE AT 4:29 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….13 ENE AT 12:10 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..8.5 NE
ASOS…………………..9.0
DAVIS………………….7.6 NE [046 deg.]
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 AUGUST………….1.45 DEPARTURE……….-1.55
ASOS…………..1.41
TOTAL PRECIPITATION FOR THE YEAR……….31.08 DEPARTURE……….-2.91
ASOS………….31.32
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 86/63/75/+3/0.00/598/69 25 S RMY 29
8/2 68/59/64/-8/0.11/009/01 21 ESE RMY 22
8/3 71/60/66/-6/0.01/104/12 12 SE RMY 12
8/4 83/64/74/+2/0.00/550/64 20 S RMY 21
8/5 87/66/77/+5/0.00/798/93 17 S RMY 19
8/6 79/64/72/0/0.07/462/54 23 WNW RMY 25
8/7 79/58/69/-3/T/589/69 22 NW RMY 24 TSTM
8/8 82/55/69/-3/0.00/817/96 20 WNW RMY 20
8/9 82/60/71/-1/0.00/730/86 16 WNW RMY 17
8/10 84/63/74/+3/0.00/770/91 15 W RMY N/A
8/11 85/63/74/+3/0.00/667/79 25 S RMY 29
8/12 81/64/73/+2/0.00/387/46 25 SSE RMY N/A
8/13 69/61/65/-6/1.09/000/00 35 ESE RMY 37
8/14 73/57/65/-6/0.00/828/99 27 W RMY 29
8/15 74/56/65/-6/0.09/459/55 23 W RMY 23 TSTM
8/16 76/56/66/-5/0.00/640/77 24 SW RMY 27
8/17 78/60/69/-2/0.01/555/67 21 WNW RMY 23
8/18 77/56/67/-4/0.00/777/94 23 WNW RMY 25
8/19 78/54/66/-4/0.00/816/99 17 WNW RMY 17
8/20 78/58/68/-2/0.00/813/99 15 NE RMY 15
8/21 76/58/67/-3/T/434/53 16 ENE RMY 17
8/22 71/60/66/-4/0.07/…/.. 17 NE RMY 19
8/23 morning low of 59F; the normal low is now 61F
DAILY RECORDS FOR AUGUST 2014:
None so far.
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR AUGUST 23
HIGH 88F IN 1918, 1947, 1949, 1996
LOW 45F IN 1923
PRECIP 2.09 INCHES IN 2010
PEAK GUST 60e MPH NW IN 1940
RECORDS FOR AUGUST 24
HIGH 92F IN 1947
LOW 43F IN 1971
PRECIP 2.40 INCHES IN 2010
PEAK GUST 54 MPH W IN 1986
TODAY’S REPORT PREPARED BY: Jonathan O’Brien
