Sunday, November 8, 2015

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

DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, NOVEMBER 8, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME

COOLER SEASONAL TEMPERATURES ON A DAY WITH FEW CLOUDS

With temperatures only climbing into the 50s, no records will
be set today as normal temperatures have returned to the area.

Generally clear skies have given way to small patches of cumulus
clouds with very gusty winds and dry conditions.
PRELIMINARY STATS FOR OCTOBER 2015

TEMPERATURE, Deg. F
Avg. Max. 59.9 [-0.4] Avg. Min. 43.1 [+0.2] Mean      51.5 [-0.1] Corrected mean: 51.1
Max. for month: 76 on 12th
Min. for month: 26 on 19th

COOLING DEGREE DAYS
Total cooling units: 0 [-5] Total for the season: 810 [+208] Total for last season: 595

HEATING DEGREE DAYS
Total heating units: 411 [-10] Total for the season: 454 [-109] Total for last season: 422

PRECIPITATION, Inches
Total: 2.69 [-2.00] Greatest in 24 hrs: 1.58 from 28th-29th

WIND, mph
Avg. uncorrected wind speed: 12.6
Avg. corrected wind speed: 12.9
Prevailing wind direction: NNW @ 13%
Peak gust and direction: 53 SSE on the 28th, S on the 29th

SUNSHINE:
Campbell-Stokes card minutes: 11238/19824 or 57%
Astronomical total minutes:   11666/20566 or 57%

Today’s Observations:

7 A.M.
Weather: Clear, few cumulus NNW-NE and NE-ESE few stratocumulus
ESE-SSW
Temperature: 40F; Dew Point: 33F; Wind: WNW at 8 kts,
Sea-level pressure: 30.21 ins. Hg, rising then more slowly
Visibility: 75 miles
6-hr Max temp: 45F
6-hr Min temp: 39F
24-hr precip: 0.00 ins.
BHO SA 1155 CLR 75 229/40/33/3008/021/ FEW CU DSNT NNW-N AND
E-ESE FEW SC DSNT ESE-SSW/ 8/800 52030 10045 20039

10 A.M.
Weather: Clear, few cumulus all quadrants
Temperature: 48F; Dew Point 30F; Wind: WNW at 14 kts,
Sea-level pressure: 30.27 ins. Hg, rising,
Visibility: 70 miles
BHO SA 1455 CLR 70 249/48/30/3014/027/ FEW CU ALQDS/ 8/100 51020

1 P.M.
Weather: Clear, few cumulus
Temperature: 54F; Dew Point 28F; Wind: WNW at 13G19 kts
Sea-level pressure: 30.27 ins. Hg, steady then falling
Visibility: 70 miles
6-hr max. temp. 54F
6-hr min. temp. 40F
BHO SA 1755 CLR 70 248/54/28/3013G19/027/ FEW CU/ 8/100 58001
10054 20040
SUMMARY FOR SATURDAY, NOVEMBER 7, 2015

TEMPERATURE (DEGREES F)
MAX…..64   NORMAL…..53
MIN…..46   NORMAL…..36
MEAN….55   NORMAL…..45

DEPARTURE FROM 30-YEAR NORMAL…………………+10
TOTAL DEPARTURE FOR THE MONTH…………………+88  [+12.4 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..10   DEPARTURE………-10
TOTAL HEATING UNITS FOR THE MONTH…………..50   DEPARTURE………-87
TOTAL HEATING UNITS FOR THE SEASON…………504   DEPARTURE……..-196
TOTAL HEATING UNITS LAST SEASON TO DATE…….561   DIFFERENCE……..-57

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….33 WNW AT 11:43 A.M. *
ASOS……………………37 WNW AT 11:42 A.M.
DAVIS…………………..34 WNW AT 10:58 A.M. RMY 35
FASTEST MILE FOR YESTERDAY…………………24 WNW AT  8:56 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………28 W   AT  8:55 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..24 WNW AT  8:55 A.M.
AVERAGE WIND SPEED AND DIRECTION………….14.5  WNW
ASOS………………….15.0
DAVIS…………………12.6  W [278 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…..-1.09
ASOS……………0.00
TOTAL PRECIPITATION FOR THE YEAR………..36.83  DEPARTURE…..-8.02
ASOS…………….N/A ***
*** ASOS annual total not available due to erroneous readings

PRELIMINARY CLIMATE SUMMARY FOR OCTOBER & 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

10/1  55/51/53/-4/0.03/000/00               39 NE  RMY N/A
10/2  51/47/49/-8/0.18/000/00               40 NE  RMY 43
10/3  51/45/48/-8/0.31/000/00               38 NE  RMY N/A
10/4  55/49/52/-4/0.00/474/68               35 E   RMY 40
10/5  59/46/53/-3/T/125/18                  21 NE  RMY 20
10/6  68/43/56/+1/0.00/663/96               17 NW  RMY 17
10/7  69/46/58/+3/0.00/640/93               20 W   RMY 20
10/8  63/49/56/+2/0.00/678/99               21 S   RMY N/A
10/9  68/50/59/+5/0.27/130/19               45 S   RMY 49
10/10 59/44/52/-2/0.00/673/99   *           33 NNW RMY N/A
10/11 67/46/57/+4/0.00/582/86               26 SW  RMY 28
10/12 76/50/63/+10/0.00/647/96              22 SSW RMY 24
10/13 70/55/63/+10/0.27/208/31              23 S   RMY 24
10/14 66/46/56/+4/0.00/428/64               26 W   RMY 29
10/15 60/41/51/-1/0.00/659/99               20 SW  RMY 27
10/16 60/44/52/+1/T/471/71                  31 W   RMY 34
10/17 54/35/45/-6/T/482/73                  30 WNW RMY 33
10/18 45/28/37/-14/0.00/480/73              24 NNW RMY 25
10/19 47/26/37/-13/0.00/648/99              25 SSW RMY 30
10/20 65/43/54/+4/0.00/306/47               28 SW  RMY 28
10/21 59/51/55/+5/0.01/039/06               18 SSE RMY 21
10/22 71/51/61/+12/T/149/23                 31 W   RMY 34
10/23 55/34/45/-4/0.00/541/84               31 NNW RMY 34
10/24 46/33/40/-9/0.00/000/00               15 SSE RMY N/A
10/25 59/44/52/+3/0.04/019/03               29 N   RMY 31
10/26 53/38/46/-2/0.00/636/100              23 NNW RMY 20
10/27 56/35/46/-2/0.00/531/81               15 SE  RMY N/A
10/28 64/44/54/+6/0.63/019/03               53 SSE RMY N/A
10/29 72/52/62/+15/0.95/257/41              53 S   RMY N/A
10/30 59/38/49/+2/0.00/626/100              33 WNW RMY 35
10/31 54/32/43/-4/0.00/573/92               18 SSW RMY N/A

* Mean temperature on the 10th corrected from 53 to 52.

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  low since midnight is 39F; normal low is now 36F

DAILY RECORDS FOR OCTOBER AND 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 8
HIGH 72 IN 1938
LOW 20 IN 1921
PRECIP 2.24 INCHES IN 1972
SNOWFALL 4.0 IN 1894
PEAK GUST 72e SE IN 1947

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

TODAY’S REPORT PREPARED BY: Robert Millette