Tuesday, November 14, 2017
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, NOVEMBER 14, 2017
ALL TIMES ARE IN EASTERN STANDARD TIME
OVERCAST SKIES REMAIN AFTER YESTERDAY’S RAIN FALL…
Rain began yesterday morning with on and off showers
until just before 1:00 P.M. when light rain began
and continued until just before 10:00 P.M. EST. There
were more on and off showers before 7:00 A.M. EST today.
This morning we measured 0.26 inches for the 24 hour
rainfall. Even with this additional rainfall
we are still -1.52 inches below the normal amount
of rainfall for November. Winds from the north
have remained light again today with a shift from
northwest to northeast around 10:00 A.M. EST. Skies
continue to be overcast stratus and altostratus today.
A distant fog at each observation limited visibility
with a maximum of 55 miles by 1:00 P.M. EST. High
temperatures have been below seasonable since last
week’s wind shift. We had a high yesterday of 40F.
which is 11 degrees below the normal of 51F. Overnight
we had a low of 33F which is close to the normal of 34F.
So far today we have also had a high of 40F.
Today’s Observations:
7 A.M.
Weather: Overcast altostratus
Temperature: 33F; Dew Point: 33F; Wind: NNW at 6 kts,
Wind: Light
Sea-level pressure: 30.32 ins. Hg, rising unsteadily
Visibility: 30 miles, patches of ground fog ENE-E
and distant fog in all directions
6-hr Max temp: 36F
6-hr Min temp: 33F
24-hr precip: 0.26 inches
BHO SA 1155 E30 OVC 30 269/33/33/3406/032/ PTCHS GF ENE-E
DSNT FG ALQDS WND LGT/ 8/02/ 52011 MANUAL 70026 ASOS 70025
10036 20033
10 A.M.
Weather: Overcast stratus, few cumulus ENE-E
Temperature: 36F; Dew Point: 33F; Wind: NNW at 6 kts,
Wind: Light
Sea-level pressure: 30.35 ins. Hg, rising unsteadily
Visibility: 40 miles, distant fog in all directions
BHO SA 1455 E60 OVC 40 277/36/33/3406/035/ FEW CU ENE-E
DSNT FG ALQDS WND LGT/ 8/6// 51008
1 P.M.
Weather: Scattered stratocumulus, overcast altostratus,
few stratus fractus in all directions
Temperature: 40F; Dew Point: 32F; Wind: NNE at 6 kts,
Wind: Light
Sea-level pressure: 30.32 ins. Hg, falling steadily
Visibility: 55 miles, distant fog in all directions
6-hr Max temp: 40F
6-hr Min temp: 33F
BHO SA 1755 40 SCT E60 OVC 55 266/40/32/0206/032/ FEW STFA
ALQDS DSNT FG ALQDS WND LGT/ 8/52/ 58011 10040 20033
SUMMARY FOR MONDAY, NOVEMBER 13, 2017
TEMPERATURE (DEGREES F)
MAX…..40 NORMAL…..51
MIN…..35 NORMAL…..34
MEAN….38 NORMAL…..43
DEPARTURE FROM 30-YEAR NORMAL…………………….-5
TOTAL DEPARTURE FOR THE MONTH…………………….+4 [+0.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..27 DEPARTURE………..5
TOTAL HEATING UNITS FOR THE MONTH………….266 DEPARTURE………..0
TOTAL HEATING UNITS FOR THE SEASON…………534 DEPARTURE……..-295
TOTAL HEATING UNITS LAST SEASON TO DATE…….657 DIFFERENCE…….-123
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………..20 NNW AT 2:38 P.M.
AERO………………….17 NNW AT 3:46 P.M.
ASOS………………….20 N AT 7:02 P.M.
DAVIS……………….. 17 NNW AT 2:17 A.M. RMY 20
FASTEST MILE FOR YESTERDAY……………….14 NNW AT 2:46 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE…………….15 NNW AT 3:08 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………14 N AT 4:48 A.M.
AVERAGE WIND SPEED AND DIRECTION…………..9.2 NNW
ASOS………………….10.1
DAVIS………………….8.7 N [010 DEG.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.26 DEPARTURE……+0.10
ASOS…………..0.25
TOTAL PRECIPITATION FOR THE MONTH……….0.52 DEPARTURE……-1.52
ASOS…………..0.49
TOTAL PRECIPITATION FOR THE YEAR……….48.32 DEPARTURE……+2.50
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 40/35/38/-5/…/…/.. 20 NNW AERO 17 NNW RMY 20
11/14 Low temp since midnight is 33F; 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 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
RECORDS FOR NOVEMBER 15
HIGH 74 IN 1993
LOW 15 IN 1933
PRECIP 1.66 INCHES IN 1981
SNOWFALL 4.0 IN 1967
PEAK GUST 65 SSE IN 2008
TODAY’S REPORT PREPARED BY: Kaitlin Geagan
