Thursday, August 29, 2013
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, AUGUST 29, 2013
ALL TIMES ARE IN EASTERN STANDARD TIME
LOW CLOUDS, FOG, DRIZZLE AND SOME LIGHT RAIN TODAY
VERY COOL TEMPERATURES WITH PREVAILING NE WINDS
TEMPS. FALL TO THE LOW 60’S BY LATE MORNING
Low clouds and fog rolled in overnight last night and temperatures have
been falling down to 60.8F for a minimum by early afternoon. As of early
this afternoon the maximum temperature is only 64F, well below the normal
maximum for this date of 77F. However, 64F is well above the record low
maximum of 58F.
Very light drizzle fell late last night. Light drizzle began again during
the early hours of today and there have been a few periods of light rain.
Total precipitation measured 0.04 inch as of 2 P.M. EDT.
Today’s Observations:
7 A.M.
Weather: Sky obscured by fog, light drizzle and heavy fog, drizzle began
at 6:30 A.M., fog drip
Temperature: 63F; Dew Point: 63F; Wind: NNE at 9 kts,
Wind: Direction variable N-ENE
Sea-level pressure: 30.03 ins. Hg, rising then more rapdily
Visibility: 1/16 mile, light drizzle and dense fog
24-hr precip: Trace
6-hr min. temp: 62F
BHO SA 1155 W2 X 1/16L-F 171/63/63/0309/003/ FG DRIP WND 01V07 LB30
PCPN VRY LGT/ 8//// 53013 MANUAL 6000/ 10063 20062
10 A.M.
Weather: Sky obscured by dense fog, stratus drifting over summit,
drizzle ended during past hour
Temperature: 62F; Dew Point: 62F; Wind: NNE at 9 kts,
Wind: Direction variable N-ENE
Sea-level pressure: 30.06 ins. Hg, rising then more rapidly
Visibility: 1/4 mile, except 1/8 mile HW-NE, 1 mile SE-SW, fog/dense fog
3-hr precip: 0.01 inch
BHO SA 1455 W3 X 1/4F 181/62/62/0309/006/ STRA DRFTG OVR SMT VSBY NW-NE
1/8 SE-SW 1 WND 36V06 RW-E07 L- BUKN CTD MSTLY VRY LGT/ 8//// 53010
MANUAL 6001/ ASOS 60001
1 P.M.
Weather: Sky obscured by dense fog and light drizzle
Temperature: 61F; Dew Point: 61F; Wind: NE at 10 kts,
Wind: Direction variable N-ENE
Sea-level pressure: 30.06 ins. Hg, falling slightly
Visibility: 1/16 mile, light drizzle and dense fog
6-hr max. temp: 64F
6-hr precip: 0.04 in.
BHO SA 1755 W3 X 1/16L-F 180/61/61/0410/006/ WND 36V07 L- RW-B22E42 L- CTD/
8//// 58001 MANUAL 6004/ ASOS 60003 10064 20061
WEATHER SUMMARY FOR WEDNESDAY, AUGUST 28, 2013
TEMPERATURE (DEGREES F)
MAX…..81 NORMAL…..77
MIN…..62 NORMAL…..60
MEAN….72 NORMAL…..69
DEPARTURE FROM 30-YEAR NORMAL…………………..+3
TOTAL DEPARTURE FOR THE MONTH………………….-24 [-1.1 DEGREES/DAY]
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..7 DEPARTURE………+2
TOTAL COOLING UNITS FOR THE MONTH…………142 DEPARTURE……..-31
TOTAL COOLING UNITS FOR THE SEASON………..625 DEPARTURE…….+101
TOTAL COOLING UNITS LAST SEASON TO DATE……699 DIFFERENCE…….-74
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY…………….26 NE AT 10:18 P.M.
AERO…………………24 NE AT 10:22 P.M. *
ASOS…………………26 NE AT 10:18 P.M.
DAVIS………………..25 NE AT 10:17 P.M. RMY 27
FASTEST MILE FOR YESTERDAY………………18 ENE AT 10:32 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………18 ENE AT 10:32 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………..17 NE AT 10:24 P.M.
AVERAGE WIND SPEED AND DIRECTION………. 6.6 NE
ASOS………………..6.6
DAVIS……………….6.1 NE [050 deg.]
* last of several occurrences…
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…Trace DEPARTURE………….-0.11
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….2.62 DEPARTURE………….-1.08
ASOS…………..2.66
TOTAL PRECIPITATION FOR THE YEAR……….37.91 DEPARTURE………….+3.22
ASOS…………..N/A*
*ASOS malfunctioned during storm on 2/8-9, leading to erroneous totals
PRELIMINARY CLIMATE SUMMARY FOR AUGUST 2013 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system gust
RMY: RMY = R.M. Young wind gust recording system added 8/9/2011
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
8/1 81/62/72/0/0.01/503/58 25 S AERO 26 MPH S RMY 27
8/2 81/62/72/0/0.23/518/60 26 W AERO 26 MPH W RMY 28
8/3 77/63/70/-2/T/276/32 22 WSW AERO 23 MPH WSW RMY 23
8/4 79/58/69/-3/T/645/75 25 WNW AERO 21 MPH WNW RMY 26
8/5 75/54/65/-7/0.00/858/100 26 WNW AERO 25 MPH WNW RMY 27
8/6 78/56/67/-5/0.00/846/99 17 ESE AERO 15 MPH S RMY 16
8/7 80/59/70/-2/0.00/759/89 21 S AERO 21 MPH S RMY N/A
8/8 79/62/71/-1/0.08/153/18 25 S AERO 25 MPH S RMY N/A
8/9 73/70/72/0/2.21/000/00 37 S AERO 39 MPH S RMY 40
8/10 81/61/71/-1/0.00/795/94 30 WNW AERO 31 MPH WNW RMY 31
8/11 78/58/68/-3/0.00/835/99 18 W AERO 18 MPH W RMY 21
8/12 81/62/72/+1/0.00/656/78 18 W AERO 17 MPH WSW RMY 19
8/13 73/64/69/-2/0.02/193/23 16 SSE AERO 15 MPH SSE RMY N/A
8/14 73/57/65/-6/0.00/819/98 35 W AERO 35 MPH W RMY 35
8/15 75/53/64/-7/0.00/800/96 23 W AERO 23 MPH W RMY 24
8/16 77/57/67/-4/0.00/740/89 20 W AERO 19 MPH W RMY 21
8/17 77/59/68/-3/0.00/770/93 18 W AERO 18 MPH W RMY N/A
8/18 80/62/71/0/T/231/28 16 SSW AERO 17 MPH SSW RMY 18
8/19 82/58/70/0/T/494/60 17 W AERO 18 MPH W RMY 20
8/20 85/64/75/+5/0.00/772/94 17 NW AERO 18 MPH NW RMY N/A
8/21 87/65/76/+6/0.00/802/98 18 WSW AERO 18 MPH WSW RMY 18
8/22 84/67/76/+6/0.00/432/53 22 SW AERO 22 MPH SSW RMY N/A
8/23 78/63/70/0/0.00/610/75 25 NNW AERO 25 MPH NNW RMY 24
8/24 73/55/64/-6/0.00/786/97 23 NNE AERO 22 MPH NNE RMY N/A
8/25 82/57/70/+1/0.00/791/98 20 SW AERO 21 MPH SW RMY 21
8/26 80/64/72/+3/T/145/18 26 WSW AERO 26 MPH SW RMY 28
8/27 78/66/72/+3/0.07/329/41 16 NE AERO 15 MPH NE RMY 16
8/28 81/62/73/+3/T/…/.. 26 NE AERO 24 MPH NE RMY 27
8/29 morning low temp: 62F; the normal low is now 60F
DAILY RECORDS FOR AUGUST 2013
None so far.
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR AUGUST 29
HIGH 95F IN 1953
LOW 41F IN 1982
PRECIP 2.88 INCHES IN 1962
PEAK GUST 70e MPH S IN 1949
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
TODAY’S REPORT PREPARED BY: Robert Skilling
