Friday, November 6, 2015

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

DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, NOVEMBER 6, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME

TODAY’S RECORD HIGH TEMPERATURE OF 71F EQUALED AROUND 1 P.M.
UNUSUALLY WARM START TO NOVEMBER 11.2 DEGREES ABOVE NORMAL
OVERNIGHT LOW OF 60F; NORMAL LOW IS 36F
HEAVY DEW AND CONDENSATION BUT NO PRECIPITATION

Today’s record high temperature of 71F was equaled very
close to 1 P.M. The most accurate reading of 70.6 degrees
occurred in the Hazen shelter near 1 p.m.
The high temperature of 72F yesterday fell short of
the record of 76F set in 1994. Today’s record high
is 71F in 1959, and there is a chance to easily surpass
that record if the sun begins to shine.  The morning
low of 60 degrees would set a record high minimum if
the low for today remains above the record of 58 set
in 1938.
In addition, if today’s minimum should remain at 60
degrees it would equal the warmest daily minimum
during the month of November set at 60 degrees
on November 8, 1996.
The dew point rose to 60 degrees overnight and we
observed heavy condensation on most all surfaces
early this morning along with some fog.

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: Scattered dense cirrus, broken dense cirrus, few stratus
dissipating, altostratus, few altocumulus lenticulars N-SE,
scattered altocumulus, dense cirrus all quadrants, sun dog ESE,
heavy dew/condensation
Temperature: 60F; Dew Point: 60F; Wind: SSW at 11 kts,
Sea-level pressure: 30.03 ins. Hg, falling then more slowly
Visibility: 6 miles, except 9 miles SW and N, thin fog
6-hr Max temp: 62F
6-hr Min temp: 60F
24-hr precip: 0.00 ins.
BHO SA 1155 200 SCT E220 BKN 250 BKN 6F 170/60/60/2111/003/
FEW STRA DSPTNG AS/FEW ACSL N-SE DNS CI ALQDS VSBY SW 9 N 9/
HVY DEW/CONDENSATION/ 8/672 56010 10062 20060

10 A.M.
Weather: Overcast stratus, occasional small break in the
overcast, bright spots in overcast
Temperature: 65F; Dew Point 62F; Wind: SSW at 15 kts,
Wind: Gust to 24 kts past hour w
Sea-level pressure: 29.98 ins. Hg, falling, then more quickly
Visibility: 25 miles, hazy, thin distant fog
BHO SA 1455 E9 OVC 25 152/65/62/2115/998/ BRGHT SPTS AND OCNL SML
BINOVC HAZY THN DSNT FG WND GUST 24 KTS PST HR/ 8/6// 58018

1 P.M.
Weather: Broken stratocumulus, few moderate cumuloform tops,
broken altocumulus, few lenticularis, broken cirrus
Temperature: 70F; Dew Point 62F; Wind: SSW @ 17G24 kts
Wind: Peak wind 26 kts SSW @ 12:12 P.M.
Sea-level pressure: 29.85 ins. Hg, falling rapidly
Visibility: 40 miles, except 45 miles WNW, distant haze
6-hr max. temp. 71F
6-hr min. temp. 60F
BHO SA 1755 E21 BKN 140 BKN 220 BKN 40 110/70/62/2017G24/985/
SC FEW MDT CUFRM TOPS FEW ACSL DSNT HZ PK WND 2026/12/
8/541 58042 10071 20060

SUMMARY FOR THURSDAY, NOVEMBER 5, 2015

TEMPERATURE (DEGREES F)
MAX…..72   NORMAL…..54
MIN…..51   NORMAL…..37
MEAN….62   NORMAL…..45

DEPARTURE FROM 30-YEAR NORMAL…………………+17
TOTAL DEPARTURE FOR THE MONTH…………………+57  [+11.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………3   DEPARTURE………-17
TOTAL HEATING UNITS FOR THE MONTH…………..40   DEPARTURE………-56
TOTAL HEATING UNITS FOR THE SEASON…………494   DEPARTURE……..-166
TOTAL HEATING UNITS LAST SEASON TO DATE…….520   DIFFERENCE……..-26

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….31  SW  AT 11:17 A.M.
ASOS……………………33  SW  AT 11:18 A.M.
DAVIS…………………..23  SSW AT 11:17 A.M. RMY 36
FASTEST MILE FOR YESTERDAY…………………21  SW  AT 11:49 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………22  SW  AT 11:50 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..20  SW  AT 11:50 A.M.
AVERAGE WIND SPEED AND DIRECTION……………15.2 SW
ASOS……………………15.8
DAVIS…………………..14.0 SW [230 Deg.] *ADDITIONAL PEAK GUST OR FASTEST MILE 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…..-0.78
ASOS……………0.00
TOTAL PRECIPITATION FOR THE YEAR………..36.83  DEPARTURE…..-7.72
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

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  low since midnight is 60F; normal low is now 36F

DAILY RECORDS FOR OCTOBER AND NOVEMBER 2015

-NONE

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

RECORDS FOR NOVEMBER 6
HIGH 71 IN 1959 (equaled in 2015)
LOW 22 IN 1951
PRECIP 1.72 INCHES IN 1907
SNOWFALL 8.0 IN 1894
PEAK GUST 63 W IN 1973

RECORDS FOR NOVEMBER 7
HIGH 75 IN 1938
LOW 21 IN 1930
PRECIP 2.02 INCHES IN 1953
SNOWFALL 3.5 IN 2012
PEAK GUST 69e ENE IN 1953

TODAY’S REPORT PREPARED BY: Robert Skilling