Sunday, November 13, 2016

BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, NOVEMBER 13, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME

WIND DIES OUT AS WARMER WEATHER ARRIVES WITH TEMPERATURES
UP INTO THE 50S

The peak gust overnight was 28 mph NW at 12:41 AM with
lighter winds since then.  Temperatures have climbed into
the 50s as clouds have given way to sunny skies.  Dry
conditions prevailed into the afternoon.  At the 1 o’clock
observation, temperatures had reached 58 degrees with
humidity at 32%.  Winds were out of the west at 11 mph under
clear skies with a few clouds to the south.

7 A.M.
Weather: Scattered Altostratus, Broken Cirrocumulus
Temperature: 40F; Dew Point: 21F; Wind: W at 11 kts
Sea-level pressure: 30.01 ins. Hg, rising
Visibility: 80 miles
6-hr Max temp: 40F
6-hr Min temp: 39F
24-hr precip: 0.00 in.
BHO SA 1155 160 SCT E220 BKN 80 162/40/21/2611/001/
8/029 53002 10040 20039

10 A.M.
Weather: Scattered Cirrocumulus
Temperature: 50F; Dew Point: 27F; Wind: WSW at 7 kts
Sea-level pressure: 30.03 ins. Hg, rising
Visibility: 70 miles
BHO SA 1455 220 SCT 70 169/50/27/2507/003/ 8/009 51007

1 P.M.
Weather: Clear, few altocumulus distant SSE-SSW
Temperature: 58F; Dew Point: 30F; Wind: W at 11 kts
Sea-level pressure: 29.95 ins. Hg, decreasing then more slowly
Visibility: 70 miles
6-hr Max. temp: 58F
6-hr Min. temp: 40F
BHO SA 1755 CLR 70 143/58/30/2811/995/ FEW AC DSNT SSE-SSW/
8/010 56026 10058 20040

SUMMARY FOR SATURDAY, NOVEMBER 12, 2016

TEMPERATURE (DEGREES F)
MAX…..47   NORMAL…..52
MIN…..31   NORMAL…..35
MEAN….39   NORMAL…..43

DEPARTURE FROM 30-YEAR NORMAL……………………-4
TOTAL DEPARTURE FOR THE MONTH…………………..+25 [+2.3 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..26   DEPARTURE……….+4
TOTAL HEATING UNITS FOR THE MONTH………….219   DEPARTURE………-25
TOTAL HEATING UNITS FOR THE SEASON…………640   DEPARTURE……..-177
TOTAL HEATING UNITS LAST SEASON TO DATE…….589   DIFFERENCE……..+51

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….38  NW AT 12:41 A.M.
ASOS……………………45  NW AT 12:24 A.M.
DAVIS…………………..43  NW AT 12:46 A.M. RMY N/A
FASTEST MILE FOR YESTERDAY…………………29  NW AT 12:59 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………29  NW AT  1:00 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..29  NW AT 12:59 A.M.
AVERAGE WIND SPEED AND DIRECTION………….13.1 WSW
ASOS………………….13.0
DAVIS…………………11.6   W [280 Deg.] * Last of several occurrences

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……….0.05  DEPARTURE……-1.83
ASOS…………..0.07
TOTAL PRECIPITATION FOR THE YEAR……….34.41  DEPARTURE…..-11.24
ASOS………….34.77

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  55/29/42/-4/0.00/600/97           22 SSE AERO 22 S   RMY N/A
11/2  69/45/57/+11/0.00/425/69          24 SSW AERO 24 S   RMY 26
11/3  65/49/57/+11/0.01/025/04          38 W   AERO 41 W   RMY 38
11/4  56/35/46/+1/0.00/587/96           26 NW  AERO 26 NW  RMY 30
11/5  55/32/44/-1/0.00/250/41           24 W   AERO 23 W   RMY 24
11/6  49/39/44/-1/0.04/091/15           23 N   AERO 23 N   RMY 23
11/7  46/33/40/-5/0.00/423/70           21 N   AERO 21 N   RMY 20
11/8  64/36/50/+6/0.00/590/98           17 W   AERO 15 SSW RMY N/A
11/9  60/43/52/+8/T/090/15              22 NNW AERO 22 NW  RMY N/A
11/10 52/34/43/-1/0.00/507/85           28 SSW AERO 30 SSW RMY 31
11/11 59/35/47/+4/0.00/565/95           39 NW  AERO 44 NW  RMY 45
11/12 47/31/39/-4/0.00/…/..           38 NW  AERO 44 NW  RMY 23

11/13 Low temp since midnight is 37F; normal low is now 35F

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: Robert Millette