Monday, November 16, 2015

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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, NOVEMBER 16, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME

WINDY, SEASONABLE WEEKEND COMES TO AN END,
AS TEMPS GRADUALLY CLIMB INTO THE 50S ONCE AGAIN

Saturday and Sunday marked the only two days that were technically
colder than normal so far this month. Even with a cooler weekend,
temperatures are still averaging 7.2 degrees above normal for
the month of November.

Overnight, temperatures dipped to a low of 42F. Another day without
precipitation on Sunday has increased our monthly and annual deficits,
with 1.56 inches and 8.50 below normal respectively.

By today’s 1:00 PM EST observation a layer of altocumulus that
had darkened skies this morning had dissipated along. Dew points
had dropped below the freezing mark as temperatures reached a
maximum of 58F. Visibility had increased to 75 miles in all directions.
Today’s Observations:

7 A.M.
Weather: Broken altocumulus, few stratocumulus overhead
Temperature: 45F; Dew Point: 37F; Wind: WNW at 10 kts
Sea-level pressure: 30.16 ins. Hg, rising, then more quickly
Visibility: 40 miles, except 70 miles SE-WSW, thin fog in all
directions
6-hr Max temp: 47F
6-hr Min temp: 42F
24-hr precip: none
BHO SA 1155 E130 BKN 40 212/45/37/3010/016/ VSBY SE-WSW 70 MI
FEW SC OVHD THN FG ALQDS/ 8/570 53012 10047 20042

10 A.M.
Weather: Scattered altocumulus, altocumulus lenticularis distant W
Temperature: 51F; Dew Point 37F; Wind: W at 8 kts,
Sea-level pressure: 30.18 ins. Hg, falling slightly
Visibility: 35 miles, hazy, thin fog in all directions
BHO SA 1455 130 SCT 35 219/51/37/2808/018/ ACSL DSNT W THN FG
ALQDS HAZY/ 8/040 51007

1 P.M.
Weather: Clear, few altocumulus WNW-SSE, altocumulus lenticularis
distant SE
Temperature: 58F; Dew Point 31F; Wind: W at 10G20 kts
Sea-level pressure: 30.13 ins. Hg, falling then more slowly
Visibility: 75 miles
6-hr max. temp. 58F
6-hr min. temp. 45F
BHO SA 1755 CLR 75 204/58/31/2810G20/013/ FEW AC WNW-SSE ACSL
DSNT SE/ 8/040 56015 10058 20045
SUMMARY FOR SUNDAY, NOVEMBER 15, 2015

TEMPERATURE (DEGREES F)
MAX…..51   NORMAL…..50
MIN…..31   NORMAL…..34
MEAN….41   NORMAL…..42

DEPARTURE FROM 30-YEAR NORMAL………………….-1
TOTAL DEPARTURE FOR THE MONTH………………..+111  [+7.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..24   DEPARTURE……….+1
TOTAL HEATING UNITS FOR THE MONTH………….202   DEPARTURE……..-110
TOTAL HEATING UNITS FOR THE SEASON…………656   DEPARTURE……..-219
TOTAL HEATING UNITS LAST SEASON TO DATE…….738   DIFFERENCE……..-82

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….25 W   AT   1:28 P.M.
ASOS……………………27 WSW AT   1:42 P.M.
DAVIS…………………..26 W   AT   1:27 P.M. RMY 27
FASTEST MILE FOR YESTERDAY…………………18 WSW AT   1:42 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………20 W   AT   4:39 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..18 W   AT   1:28 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..13.4 W
ASOS…………………..13.1
DAVIS………………….11.5 W [277 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………..0.80  DEPARTURE…..-1.56
ASOS……………0.80
TOTAL PRECIPITATION FOR THE YEAR………..37.63  DEPARTURE…..-8.50
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  59/38/49/+5/0.00/…/..               20 W   RMY 21
11/10 53/45/49/+5/…./000/00               28 NE  RMY N/A
11/11 48/43/46/+3/…./000/00               41 NE  RMY N/A
11/12 55/42/49/+6/…./000/00               28 S   RMY 30
11/13 57/41/49/+6/…./…/..               40 WSW RMY 47
11/14 45/31/38/-4/0.00/…/..               40 NW  RMY 47
11/15 51/31/41/-1/0.00/…/..               25 W   RMY 27

11/16 low since midnight is 42F; normal low is now 34F

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 16
HIGH 73 IN 1927
LOW 8 IN 1933
PRECIP 2.25 INCHES IN 1981
SNOWFALL 2.0 IN 1913
PEAK GUST 78 S IN 1989

RECORDS FOR NOVEMBER 17
HIGH 74 IN 1928
LOW 10 IN 1924
PRECIP 1.92 INCHES IN 1920
SNOWFALL 1.0 INS IN 1980
PEAK GUST 61 SSE IN 2006

TODAY’S REPORT PREPARED BY: Brian Fitzgerald