Monday, November 13, 2017
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, NOVEMBER 13, 2017
ALL TIMES ARE IN EASTERN STANDARD TIME
OVERCAST SKIES AND AFTERNOON RAIN
Humidity increased from 81% in the morning to 94% at
1:00 P.M. which resulted in lowering the visibility
from 30 miles to 15 miles by 1:00 P.M. with distant
fog in all directions all day. Skies remained overcast
all day with nimbostratus by 1:00 P.M. along with 0.02
inches of new rainfall.
Winds remained light through out the day shifting from
NNE to NNW. Temperatures still remain below normal with
a high of 40F by 1:00 P.M. which is 11 degrees below
normal of 51F.
Today’s Observations:
7 A.M.
Weather: Overcast stratus, few distant cumulus NNE-E
Temperature: 38F; Dew Point: 34F; Wind: WNW at 10 kts
Sea-level pressure: 30.39 ins. Hg, falling unsteadily
Visibility: 30 miles, distant fog in all directions
6-hr Max temp: 38F
6-hr Min temp: 36F
24-hr precip: 0.00 inches
BHO SA 1155 E20 OVC 30 291/38/34/3010/039/ FEW CU DSNT
NNE-E DSNT FG ALQDS/ 8/6// 57006 10038 20036
10 A.M.
Weather: Broken stratocumulus, overcast stratus
Temperature: 40F; Dew Point: 35F; Wind: N at 5 kts,
Wind: Light
Sea-level pressure: 30.40 ins. Hg, falling then rising
Visibility: 30 miles, distant fog in all directions
3-hr precip: Trace
BHO SA 1455 E20 BKN E40 OVC 30 294/40/35/3505/040/ DSNT FG ALDQS
WND LGT/ 8/6// 55003 MANUAL 600//
1 P.M.
Weather: Light rain, overcast nimbostratus
Temperature: 39F; Dew Point: 38F; Wind: NNW at 8 kts
Sea-level pressure: 30.35 ins. Hg, falling, then more slowly
Visibility: 15 miles, distant fog in all directions
6-hr Max temp: 40F
6-hr Min temp: 37F
6-hr precip: 0.02
BHO SA 1755 E70 OVC 15R- 278/39/38/3308/035/ DSNT FG ALQDS/ 8/02/
56016 MANUAL 6002/ ASOS 60001 10040 20037
SUMMARY FOR SUNDAY, NOVEMBER 12, 2017
TEMPERATURE (DEGREES F)
MAX…..44 NORMAL…..51
MIN…..27 NORMAL…..35
MEAN….36 NORMAL…..43
DEPARTURE FROM 30-YEAR NORMAL…………………….-7
TOTAL DEPARTURE FOR THE MONTH…………………….+9 [+0.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..29 DEPARTURE………..7
TOTAL HEATING UNITS FOR THE MONTH………….239 DEPARTURE……….-5
TOTAL HEATING UNITS FOR THE SEASON…………507 DEPARTURE……..-300
TOTAL HEATING UNITS LAST SEASON TO DATE…….640 DIFFERENCE…….-133
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….13 E AT 6:46 P.M.
AERO…………………….9 S AT 11:56 A.M.
ASOS……………………11 S AT 11:57 A.M.
DAVIS…………………..10 S AT 11:56 A.M. RMY N/A
FASTEST MILE FOR YESTERDAY………………….9 E AT 6:40 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….9 E AT 7:19 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………9 E AT 6:46 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..4.1 ESE
ASOS…………………..4.6
DAVIS………………….4.3 ESE [112 DEG.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00 DEPARTURE……-0.16
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….0.26 DEPARTURE……-1.62
ASOS…………..0.24
TOTAL PRECIPITATION FOR THE YEAR……….48.06 DEPARTURE……+2.41
ASOS……………N/A ***
*** ASOS annual total not available due to erroneous readings
PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST
AERO: Aerovane wind recording system 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
M: Missing data
11/1 53/39/46/0/0.00/…/.. 25 SE AERO 24 SE RMY 25
11/2 71/49/60/+14/0.00/…/.. 28 SSE AERO 25 SSE RMY 27
11/3 74/47/61/+15/T/…/.. 35 WNW AERO 35 WNW RMY 38
11/4 54/39/47/+2/0.00/…/.. 31 NW AERO 31 NW RMY N/A
11/5 61/46/54/+9/0.01/…/.. 26 S AERO 24 S RMY N/A
11/6 64/47/56/+11/0.05/…/.. 32 S AERO 28 SSW RMY 35
11/7 46/35/41/-4/0.11/…/.. 26 NNW AERO 23 N RMY 26
11/8 43/34/39/-5/0.08/…/.. 26 N AERO 23 N RMY 27
11/9 50/31/41/-3/0.01/…/.. 25 S AERO 23 S RMY N/A
11/10 45/20/33/-11/0.00/…/.. 46 WNW AER0 44 WNW RMY 46
11/11 36/18/27/-16/0.00/…/.. 28 WNW AERO 26 WNW RMY 28
11/12 44/27/36/-7/0.00/…/.. 13 E AERO 9 S RMY 14
11/13 Low temp since midnight is 36F; normal low is now 34F
DAILY RECORDS FOR NOVEMBER 2017
11/10/17: DAILY RECORD LOW MINIMUM TEMPERATURE OF 20F,
TIES WITH PREVIOUS RECORD SET IN 2004
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR NOVEMBER 13
HIGH 66 IN 1931, 1964
LOW 14 IN 1920
PRECIP 1.96 INCHES IN 1982
SNOWFALL 4.6 IN 2004
PEAK GUST 77 S IN 1982
RECORDS FOR NOVEMBER 14
HIGH 70 IN 1993
LOW 11 IN 1905
PRECIP 2.08 INCHES IN 2009
SNOWFALL 3.5 IN 1997, 2014
PEAK GUST 63 W IN 2003
TODAY’S REPORT PREPARED BY: Afshin Pourmokhtarian / Kaitlin Geagan
