Saturday, November 29, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, NOVEMBER 29, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
LIGHT SNOW ENDS YESTERDAY MID DAY, CLEAR,
COLD CONDITIONS IN PLACE TO START THE WEEKEND
An overnight low of 17F was reached this morning, now
officially the lowest temperature of the season so far.
Yesterday’s average temperature of 27F was 11 degrees
below the norm for the date, and adds to November’s
slightly below average temperatures.
By the 1:00 PM EST observation clouds had dissipated
to reveal mostly clear conditions with a visibility
of 60 miles in all directions. The maximum reading
so far was 31F.
Today’s Observations:
7 A.M.
Weather: Scattered altocumulus, few cumulus distant
offshore NE-SE
Temperature: 19F; Dew Point: 16F; Wind: WNW at 8 kts
Sea-level pressure: 30.31 ins. Hg, rising unsteadily
Visibility: 60 miles
6-hr max temp: 20F
6-hr min temp: 17F
24-hr precip: 0.02 in.
24-hr snowfall: 0.4 in.
BHO SA 1155 110 SCT 60 264/19/16/2908/031/ FEW CU DSNT OFFSHR
NE-SE NEW SNW PST 24HRS 0.4 INS/ 8/130 4/001 53017 ASOS 70002
MANUAL 70002 10020 20017
10 A.M.
Weather: Clear, few cumulus distant offshore NE-SE,
few altocumulus distant SE-SSW, few cirrus distant W-NW
Temperature: 27F; Dew Point: 17F; Wind: estimated WNW at 6 kts
Wind Speed: Light
Sea-level pressure: 30.34 ins. Hg, rising then rising more quickly
Visibility: 60 miles, except 50 miles W-NW, light distant haze
BHO SA 1455 CLR 60 275/27/17/E3006/034/ VSBY W-NW 50 MI
FEW CU DSNT OFFSHR NE-SE FEW AC DSNT SE-SSW FEW CI DSNT W-NW
LGT DSNT HZ W-NW WND LGT/ 8/131/ 53011
1 P.M.
Weather: Clear, few cumulus distant WSW-NE and offshore
NE-SE, few cirrus in all directions
Temperature: 30F; Dew Point: 17F; Wind: estimated WNW at 3 kts
Wind Speed: Light
Sea-level pressure: 30.30 ins. Hg, falling, then more slowly
Visibility: 60 miles
6-hr max temp: 31F
6-hr min temp: 18F
6-hr precip: 0.00 in.
BHO SA 1755 CLR 60 261/30/17/E2903/030/ FEW CU DSNT WSW-NW AND
OFFSHR NE-SE FEW CI ALQDS/ 8/101 56014 10031 20018
SUMMARY FOR FRIDAY, NOVEMBER 28, 2014
TEMPERATURE (DEGREES F)
MAX…..32 NORMAL…..45
MIN…..21 NORMAL…..30
MEAN….27 NORMAL…..38
8DEPARTURE FROM 30-YEAR NORMAL……………………-11
TOTAL DEPARTURE FOR THE MONTH…………………….-34 [-1.4 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..38 DEPARTURE……….+11
TOTAL HEATING UNITS FOR THE MONTH………….675 DEPARTURE……….+33
TOTAL HEATING UNITS FOR THE SEASON………..1097 DEPARTURE………-108
TOTAL HEATING UNITS LAST SEASON TO DATE……1144 DIFFERENCE………-47
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………29 WNW AT 3:37 P.M.
ASOS…………………..31 WNW AT 3:37 P.M.
DAVIS………………….29 WNW AT 3:36 P.M. RMY 32
FASTEST MILE FOR YESTERDAY………………..22 WNW AT 3:38 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..22 NW AT 11:36 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….19 NW AT 11:36 A.M.
AVERAGE WIND SPEED AND DIRECTION………….11.3 NW
ASOS………………….11.4
DAVIS…………………9.4 NW (313 degrees)
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.02 DEPARTURE…..-0.15
ASOS…………..0.02
TOTAL PRECIPITATION FOR THE MONTH……….6.21 DEPARTURE…..+1.77
ASOS…………..6.32
TOTAL PRECIPITATION FOR THE YEAR……….47.76 DEPARTURE…..-0.45
ASOS………….48.19
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.4 DEPARTURE……+0.2
TOTAL SNOWFALL FOR THE MONTH…………….8.7 DEPARTURE……+6.7
TOTAL SNOWFALL FOR THE SEASON……………8.7 DEPARTURE……+6.4
PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOWFALL/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
11/1 45/36/41/-5/0.79/0.0/000/00 35 NNE RMY N/A
11/2 37/32/35/-11/0.29/1.8/000/00 46 NW RMY 49
11/3 50/30/45/-6/0.00/0.0/584/95 39 WNW RMY 43
11/4 61/44/53/+8/0.00/0.0/208/34 28 SSW RMY 32
11/5 66/50/58/+13/0.00/0.0/006/01 29 SSW RMY N/A
11/6 52/45/49/+4/0.58/0.0/000/00 23 NE RMY 24
11/7 46/34/40/-5/0.00/0.0/079/13 39 NW RMY 42
11/8 47/30/39/-5/0.00/0.0/555/92 24 W RMY 25
11/9 56/38/47/+3/0.00/0.0/204/34 23 SSW RMY N/A
11/10 58/40/49/+5/0.00/0.0/592/99 17 S RMY 20
11/11 61/43/52/+9/0.00/0.0/358/60 22 S RMY 25
11/12 59/40/50/+7/0.00/0.0/095/16 22 W RMY 25
11/13 49/32/41/-2/0.08/T/450/76 21 NW RMY N/A
11/14 41/27/34/-8/0.29/3.5/442/75 23 NW RMY 27
11/15 37/24/31/-11/0.00/0.0/569/97 23 NW RMY 23
11/16 39/26/33/-9/0.00/0.0/012/02 17 S RMY 19
11/17 52/34/43/+2/1.67/0.0/000/00 29 ENE RMY 31
11/18 44/23/34/-7/0.00/0.0/494/85 33 W RMY 39
11/19 35/19/27/-14/0.00/0.0/544/94 31 WSW RMY N/A
11/20 47/26/37/-3/0.00/0.0/542/94 35 WSW RMY 41
11/21 34/22/28/-12/0.00/0.0/569/99 31 WNW RMY 39
11/22 43/20/32/-8/0.00/0.0/…/.. 32 SW RMY 36
11/23 58/40/49/+10/0.00/0.0/…/.. 26 SW RMY N/A
11/24 63/43/53/+14/0.60/0.0/…/.. 44 S RMY 53
11/25 61/44/53/+14/0.00/0.0/…/.. 28 SW RMY 30
11/26 44/31/38/+0/…./…/000/00 41 NE RMY 46
11/27 36/27/32/-6/…./…/…/.. 29 N RMY N/A
11/28 32/21/27/-11/…./…/…/.. 29 WNW RMY 32
11/29 morning low temp: 17F since midnight; the normal low is now 29F
DAILY RECORDS FOR NOVEMBER 2014:
11/2 – A NEW RECORD DAILY SNOWFALL: 1.8 INCHES;
surpasses the previous record of 0.2 ins. in 1906, 1951
11/14 – DAILY SNOWFALL RECORD EQUALED: 3.5 INCHES;
ties previous record on this date in 1997
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR NOVEMBER 29
HIGH 66 IN 2011
LOW 6 IN 1901
PRECIP 2.69 INCHES IN 1963
SNOWFALL 6.0 INS IN 2012
PEAK GUST 86 SSE IN 1963
RECORDS FOR NOVEMBER 30
HIGH 67 IN 2006
LOW 7 IN 1887, 1929
PRECIP 2.42 INCHES IN 1944
SNOWFALL 10.2 INS IN 1945
PEAK GUST 90 SSW IN 1963
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
