Saturday, November 5, 2016

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

DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, NOVEMBER 5, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME

BUILDING HIGH PRESSURE GIVES US A PLEASANT DAY WITH LIGHT WINDS

Westerly winds and low humidities continue today. Temperatures have
been slightly lower than normal with an early morning low of 32F and
a max. of 53F by 1:00PM EST.  Skies cleared to partly cloudy by early
afternoon with visibility reaching 70 miles.

October’s greater-than-normal precip. has helped to lesson drought
conditions in the Boston area.  The US Drought Monitor updated the
drought status to Severe this week.  The portion of the state in
extreme drought decreased from 38% to 29% from October 25, 2016 to
November 1, 2016.

PRELIMINARY STATS FOR OCTOBER 2016

TEMPERATURE, Deg. F
Avg. Max. 62.3 [+2.0] Avg. Min. 45.3 [+2.4] Mean      53.8 [+2.2] 24-hour corrected mean: 53.2
Max. for month: 79F on 19th
Min. for month: 28F on 27th

HEATING DEGREE DAYS
Total heating units: 346 [-75] Total for the season: 421 [-142] Total for last season: 454

COOLING DEGREE DAYS
Total cooling units: 7 [+2] Total for the season: 901 [+299] Total for last season: 810

PRECIPITATION, Inches
Total: 7.04 [+2.35] Greatest in 24 hrs: 1.89 in. on 9th

WIND, mph
Avg. uncorrected wind speed: 11.3
Avg. corrected wind speed: 11.8
Prevailing wind direction: W at 11%
Peak gust and direction: 47 W on 23rd

SUNSHINE:
Campbell-Stokes card minutes: 11598 mins. of possible 19824 or 59%
Astronomical total minutes: 11986 mins. of possible 20503 or 58%

7 A.M.
Weather: Broken altocumulus, virga E-SE
Temperature: 36F; Dew Point: 27F; Wind: W at 8 kts
Sea-level pressure: 30.17 ins. Hg, steady then rising
Visibility: 70 miles
6-hr Max temp: 36F
6-hr Min temp: 32F
24-hr precip: 0.00 in.
BHO SA 1155 E120 BKN 70 216/36/27/2708/017/ VIRGA E-SE/
8/060 53002 10036 20032

10 A.M.
Weather: Overcast stratus, small break in overcast NE
Temperature: 42F; Dew Point: 31F; Wind: SW at 6 kts,
Wind Speed: Light
Sea-level pressure: 30.16 ins. Hg, steady then falling
Visibility: 40 miles
BHO SA 1455 E39 OVC 40 214/42/31/2206/016/ SML BINOVC NE WND LGT/
8/6// 58002

1 P.M.
Weather: Few cumulus in all directions, scattered stratocumulus
Temperature: 53F; Dew Point: 37F; Wind: W at 7 kts
Sea-level pressure: 30.11 ins. Hg, falling, then more quickly
Visibility: 70 miles
6-hr Max. temp: 53F
6-hr Min. temp: 35F
BHO SA 1755 39 SCT 70 197/53/37/2807/011/ FEW CU ALQDS/
8/800 58017 10053 20035

SUMMARY FOR FRIDAY, NOVEMBER 4, 2016

TEMPERATURE (DEGREES F)
MAX…..56   NORMAL…..54
MIN…..35   NORMAL…..37
MEAN….46   NORMAL…..45

DEPARTURE FROM 30-YEAR NORMAL……………………+1
TOTAL DEPARTURE FOR THE MONTH…………………..+19 [+4.6 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………0   DEPARTURE………..0
TOTAL COOLING UNITS FOR THE MONTH……………0   DEPARTURE………..0
TOTAL COOLING UNITS FOR THE SEASON…………901   DEPARTURE……..+299
TOTAL COOLING UNITS LAST SEASON TO DATE…….810   DIFFERENCE……..+91

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..19   DEPARTURE……….-1
TOTAL HEATING UNITS FOR THE MONTH…………..58   DEPARTURE………-19
TOTAL HEATING UNITS FOR THE SEASON…………479   DEPARTURE……..-161
TOTAL HEATING UNITS LAST SEASON TO DATE…….491   DIFFERENCE……..-12

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….26 NW  AT  8:59 A.M.
ASOS……………………30 NW  AT  9:00 A.M.
DAVIS…………………..28 NW  AT  8:59 A.M. RMY 30
FASTEST MILE FOR YESTERDAY…………………20 WNW AT 11:25 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………20 NW  AT 11:25 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..19 WNW AT 11:25 A.M.
AVERAGE WIND SPEED AND DIRECTION………….11.1 NW
ASOS………………….11.3
DAVIS………………….9.8 NW [315 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……….0.01  DEPARTURE……-0.62
ASOS…………..0.02
TOTAL PRECIPITATION FOR THE YEAR……….34.37  DEPARTURE…..-10.03
ASOS………….34.72

PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 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

10/1  57/52/55/-2/1.22/000/00                 33 NNE AERO  M  RMY 34
10/2  55/52/54/-3/0.19/000/00                 23 N   AERO  M  RMY N/A
10/3  69/53/61/+5/0.00/404/58                 21 ENE AERO  M  RMY 20
10/4  61/47/54/-2/T/493/71                    26 NE  AERO  M  RMY 27
10/5  61/44/53/-3/0.00/630/91                 22 NE  AERO  M  RMY 21
10/6  71/46/59/+4/0.00/682/99                 16 SW* AERO  M  RMY 15
10/7  75/54/65/+10/0.00/679/99                16 S   AERO  M  RMY 16
10/8  69/53/61/+7/0.00/130/19                 23 SSW AERO  M  RMY 23
10/9  63/44/54/0/1.89/000/00                  28 N   AERO  M  RMY 34
10/10 57/40/49/-5/0.00/658/97                 32 NW  AERO  M  RMY 32
10/11 62/39/51/-2/0.00/655/97                 17 N   AERO  M  RMY N/A
10/12 68/49/59/+6/0.00/645/96                 17 S   AERO  M  RMY 17
10/13 71/52/62/+9/T/348/52                    24 SSW AERO  M  RMY 28
10/14 58/41/50/-2/0.00/667/100                26 NNW AERO  M  RMY 25
10/15 58/38/48/-4/0.00/578/87                 23 S   AERO  M  RMY 26
10/16 68/46/57/+6/0.00/562/85                 28 SSW AERO  M  RMY 30
10/17 76/58/67/+16/0.00/494/75                23 WSW AERO  M  RMY N/A
10/18 74/56/65/+14/0.54/210/32                35 SSW AERO  M  RMY 37
10/19 79/58/69/+19/0.00/549/84                29 SSW AERO  M  RMY N/A
10/20 64/54/59/+9/0.05/429/66                 23 ENE AERO  M  RMY 22
10/21 75/57/66/+16/1.60/142/22                30 ESE AERO  M  RMY 31 TSTM
10/22 65/40/53/+4/0.23/000/00                 37 WSW AERO  M  RMY N/A
10/23 56/41/49/0/0.00/578/90                  47 W   AERO  M  RMY 50
10/24 59/41/50/+1/T/607/95                    38 W   AERO  M  RMY 40
10/25 48/33/41/-8/0.00/586/92                 33 WNW AERO  M  RMY 35
10/26 47/32/40/-8/0.00/495/78                 29 WNW AERO  M  RMY 31
10/27 46/28/37/-11/0.67/013/02                28 ESE AERO 28 ESE RMY N/A
10/28 51/41/46/-2/0.38/000/00                 40 WNW AERO 41 WNW RMY 43
10/29 55/37/46/-1/T/000/00                    24 SSW AERO 24 SSW RMY N/A
10/30 63/43/53/+6/0.27/150/24                 25 W   AERO 25 WSW RMY N/A
10/31 51/34/43/-4/0.00/602/97                 31 NW  AERO 29 NW  RMY 33

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/…/..                 22 SSE AERO 22 S   RMY N/A
11/2  69/45/57/+11/0.00/…/..                24 SSW AERO 24 S   RMY 26
11/3  65/49/57/+11/0.01/…/..                38 W   AERO 41 W   RMY 38
11/4  56/35/46/+1/0.00/…/..                 26 NW  AERO 26 NW  RMY 30

11/5 Low temp since midnight is 32F; normal low is now 37F

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

RECORDS FOR NOVEMBER 5
HIGH 76 IN 1994
LOW 18 IN 1908
PRECIP 4.26 INCHES IN 1955
SNOWFALL 1.5 IN 1892
PEAK GUST 69 W IN 2004

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

TODAY’S REPORT PREPARED BY: Cecilia Borries-Strigle