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Monday, November 9, 2015

November 9, 2015

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY MONDAY, NOVEMBER…

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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, NOVEMBER 9, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME

CLEAR, SEASONABLE CONDITIONS LINGER INTO MONDAY

Overnight, temperatures dipped to near ‘normal’ levels with
a minimum of 38F. Clear conditions that were present Sunday
have continued through most of Monday, with only a few
cirrus visible and distant to our south ahead of tomorrow’s
expected rain. Precipitation for the month of November is
still just a trace of rain, with a monthly precipitation
deficit of 1.24 and an annual deficit of 8.18 inches.

By the 1:00 PM EST observation, cirrus from the south had
encroached further, though skies were mostly clear. Temperatures
had reached a maximum of 58F so far for the day.

Today’s Observations:

7 A.M.
Weather: Clear, few cirrus distant SE-SW
Temperature: 39F; Dew Point: 32F; Wind: W at 12 kts,
Sea-level pressure: 30.43 ins. Hg, rising, then more quickly
Visibility: 75 miles
6-hr Max temp: 40F
6-hr Min temp: 38F
24-hr precip: 0.00 ins.
BHO SA 1155 CLR 75 306/39/32/2712/043/
FEW CI DSNT SE-SW/ 8/001 53006 10040 20038

10 A.M.
Weather: Clear, few cirrus distant SE-WSW
Temperature: 50F; Dew Point 34F; Wind: W at 7 kts,
Sea-level pressure: 30.45 ins. Hg, rising, then falling but higher still
Visibility: 75 miles, except 70 miles N-NE, light distant haze
BHO SA 1455 CLR 75 310/50/34/2707/045/
VSBY N-NE 70 MI FEW CI DSNT SE-WSW LGT DSNT HZ N-NE/ 8/001 50004

1 P.M.
Weather: Clear, few cirrus distant SE-W
Temperature: 57F; Dew Point 32F; Wind: WSW at 9 kts
Sea-level pressure: 30.39 ins. Hg, falling, then more quickly
Visibility: 75 miles
6-hr max. temp. 58F
6-hr min. temp. 39F
BHO SA 1755 CLR 75 291/57/32/2409/039/
FEW CI DSNT SE-W/ 8/001 58019 10058 20039
SUMMARY FOR SUNDAY, NOVEMBER 8, 2015

TEMPERATURE (DEGREES F)
MAX…..54   NORMAL…..53
MIN…..39   NORMAL…..36
MEAN….47   NORMAL…..44

DEPARTURE FROM 30-YEAR NORMAL………………….+3
TOTAL DEPARTURE FOR THE MONTH…………………+91  [+11.1 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..18   DEPARTURE……….-3
TOTAL HEATING UNITS FOR THE MONTH…………..68   DEPARTURE………-90
TOTAL HEATING UNITS FOR THE SEASON…………522   DEPARTURE……..-199
TOTAL HEATING UNITS LAST SEASON TO DATE…….587   DIFFERENCE……..-65

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….26 NW  AT  10:19 A.M. *
ASOS……………………30 NW  AT   8:45 A.M.
DAVIS…………………..29 WNW AT   8:45 A.M. RMY 30
FASTEST MILE FOR YESTERDAY…………………22 NW  AT  10:21 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………22 NW  AT  10:21 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..20 NW  AT  10:21 A.M.
AVERAGE WIND SPEED AND DIRECTION………….12.8 NW
ASOS………………….12.7
DAVIS…………………11.0 WNW [302 Deg.] * Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…..0.00  DEPARTURE…..-0.15
ASOS……………0.00
TOTAL PRECIPITATION FOR THE MONTH……….TRACE  DEPARTURE…..-1.24
ASOS……………0.00
TOTAL PRECIPITATION FOR THE YEAR………..36.83  DEPARTURE…..-8.18
ASOS…………….N/A ***
*** ASOS annual total not available due to erroneous readings

PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/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  59/45/52/+6/T/…/..                  30 SSW RMY 31
11/2  62/47/55/+9/0.00/…/..               24 W   RMY N/A
11/3  71/44/58/+12/0.00/…/..              25 W   RMY 25
11/4  66/49/58/+13/0.00/…/..              22 SSW RMY N/A
11/5  72/51/62/+17/0.00/…/..              31 SW  RMY 36
11/6  71/60/66/+21/0.00/…/..              35 SSW RMY 38
11/7* 64/46/55/+10/0.00/…/..              33 WNW RMY 35
11/8  54/39/47/+3/0.00/…/..               26 NW  RMY 30

11/9  low since midnight is 39F; normal low is now 36F

*Maximum, mean temperatures corrected

DAILY RECORDS FOR NOVEMBER 2015

**11/6 DAILY RECORD MAXIMUM TEMPERATURE OF 71F
TIES PREVIOUS RECORD OF 71F SET IN 1959

**11/6 DAILY RECORD HIGH MINIMUM TEMPERATURE OF 60F
BREAKS PREVIOUS RECORD OF 58F SET IN 1938

**11/6 DAILY RECORD HIGH MINIMUM TEMPERATURE OF 60F
TIES PREVIOUS MONTHLY RECORD OF 60F SET ON
11/8/1996

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):

RECORDS FOR NOVEMBER 9
HIGH 72 IN 1975
LOW 17 IN 1971
PRECIP 1.37 INCHES IN 1969
SNOWFALL 0.2 IN 1921,1923
PEAK GUST 73e S IN 1943

RECORDS FOR NOVEMBER 10
HIGH 75 IN 1931
LOW 20 IN 2004
PRECIP 2.11 INCHES IN 1888
SNOWFALL 2.2 IN 1987
PEAK GUST 83e S IN 1942

TODAY’S REPORT PREPARED BY: Brian Fitzgerald

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