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

DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, NOVEMBER 4, 2016  
ALL TIMES ARE IN EASTERN STANDARD TIME

COOLER TEMPS WITH NW WINDS, DROUGHT MONITOR
LESSONS DROUGHT FROM EXTREME TO SEVERE

The cold front which passed late yesterday afternoon has brought
cooler, more seasonable temperatures and NW winds.  No additional rain
fell after the brief rain shower yesterday morning.  Dew points have
also dropped into the 30s with the arrival of drier air from the NW.

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: Few cumulus in all directions, scattered stratocumulus,
few cirrus N
Temperature: 43F; Dew Point: 40F; Wind: NW at 8 kts
Sea-level pressure: 30.03 ins. Hg, rising, then more quickly
Visibility: 40 miles, except 30 miles ENE-SSW
6-hr Max temp: 47F
6-hr Min temp: 43F
24-hr precip: 0.00 in.
BHO SA 1155 49 SCT 40 171/43/40/3208/003/ FEW CU ALQDS FEW CI N
VSBY ENE-SSW 30/ 8/501 53031 10047 20043

10 A.M.
Weather: Scattered cumulus
Temperature: 50F; Dew Point: 39F; Wind: NW at 14G20 kts
Sea-level pressure: 30.06 ins. Hg, rising then falling
Visibility: 70 miles
BHO SA 1455 26 SCT 70 179/50/39/3214G20/006/ 8/100 51008

1 P.M.
Weather: Scattered cumulus
Temperature: 55F; Dew Point: 32F; Wind: WNW at 10G18 kts
Sea-level pressure: 30.05 ins. Hg, rising then falling
Visibility: 70 miles
6-hr Max. temp: 56F
6-hr Min. temp: 43F
BHO SA 1755 34 SCT 70 176/55/32/3010G18/005/ 8/100 58003 10056 20043

SUMMARY FOR THURSDAY, NOVEMBER 3, 2016
 
TEMPERATURE (DEGREES F)
MAX.....65   NORMAL.....54
MIN.....49   NORMAL.....37
MEAN....57   NORMAL.....46

DEPARTURE FROM 30-YEAR NORMAL.......................+11
TOTAL DEPARTURE FOR THE MONTH.......................+18 [+5.8 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...............8   DEPARTURE.........-11
TOTAL HEATING UNITS FOR THE MONTH..............39   DEPARTURE.........-18
TOTAL HEATING UNITS FOR THE SEASON............460   DEPARTURE........-160
TOTAL HEATING UNITS LAST SEASON TO DATE.......484   DIFFERENCE........-24

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY...................38 W   AT 3:42 P.M.
                   ASOS........................42 W   AT 3:42 P.M.
                   DAVIS.......................36 WNW AT 4:10 P.M. RMY 38
FASTEST MILE FOR YESTERDAY.....................27 W   AT 3:41 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE..................28 W   AT 3:50 P.M.  
MAXIMUM 2-MINUTE DAVIS AVERAGE.................26 WNW AT 4:11 P.M.   
AVERAGE WIND SPEED AND DIRECTION.............11.8 E
                   ASOS......................11.5
                   DAVIS.....................10.5 W [270 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......-0.46
                         ASOS..............0.02
TOTAL PRECIPITATION FOR THE YEAR..........34.37  DEPARTURE......-9.87
                         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 Low temp since midnight is 43F; 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 4
HIGH 77 IN 1987
LOW 22 IN 1891
PRECIP 3.27 INCHES IN 1910
SNOWFALL 6.4 IN 1945
PEAK GUST 73 WNW IN 1965

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

TODAY'S REPORT PREPARED BY: Cecilia Borries-Strigle