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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, NOVEMBER 5, 2018 
ALL TIMES ARE IN EASTERN STANDARD TIME

A CLOUDY FALL DAY WITH A LIGHT EASTERLY WIND....

Today was overcast with winds blowing at 10 mph
from the east. Pressure decreased almost 4 
millibars from 7 A.M. to 1 P.M. The maximum 
temperature so far today is 49F, 5 degrees 
below the normal daily maximum of 54F. The 
low since midnight is 40F, 3 degrees above the 
normal of 37F.  
 

PRELIMINARY STATS FOR OCTOBER 2018

TEMPERATURE, Deg. F
Avg. Max. 58.0 [-2.3]
Avg. Min. 42.7 [-0.2]
Mean 50.4 [-1.2]
24-hour corrected mean: 50.2
Max. for month: 82F on the 10th
Min. for month: 27F on the 22nd and 26th

HEATING DEGREE DAYS
Total heating units: 457 [+36]
Total for the season: 544 [-19]
Total for last season: 268

PRECIPITATION, Inches
Total: 5.85 in. [+1.16]
Greatest in 24 hrs: 2.08 inches on October 27

WIND, mph
Avg. uncorrected wind speed: N/A
Avg. corrected wind speed: N/A
Prevailing wind direction: N/A
Peak gust and direction: N/A

SUNSHINE:
Campbell-Stokes card minutes: N/A
Astronomical total minutes: N/A

Today's Observations:

7 A.M.
Weather: Scattered stratocumulus, overcast altostratus
Temperature: 43F; Dew Point: 37F; Wind: ESE at 8G14 kts  
Sea-level pressure: 30.53 ins. Hg, falling, then rising      
Visibility: 40 miles
6-hr Max temp: 43F
6-hr Min temp: 40F
24-hr Precip: 0.00 ins.   
BHO SA 1155 25 SCT E140 OVC 40 338/43/37/0908G14/053/ 8/11/ 
51003 10043 20040

10 A.M.
Weather: Scattered stratocumulus, overcast altostratus 
Temperature: 46F; Dew Point: 39F; Wind: ESE at 10G16 kts  
Sea-level pressure: 30.50 ins. Hg, decreasing, then more rapidly 
Visibility: 20 miles, thin smoke layer in all directions
3-hr Precip: 0.00 ins.
BHO SA 1455 30 SCT E160 OVC 328/46/39/1010G16/050/ THN K 
LYR ALQDS/ 8/41/ 58010  

1 P.M.
Weather: Broken stratocumulus, overcast altostratus, 
few cumulus NW-E
Temperature: 49F; Dew Point: 41F; Wind: ESE at 9G14 kts 
Sea-level pressure: 30.42 ins. Hg, falling rapidly     
Visibility: 40 miles
6-hr Max temp: 49F
6-hr Min temp: 42F 
6-hr Precip: 0.00 ins.
BHO SA 1755 E30 BKN 110 OVC 40 301/49/41/1009G14/042/ 
FEW CU NW-E/ 8/41/ 58027 10049 20042

 
SUMMARY FOR SUNDAY, NOVEMBER 4, 2018 

TEMPERATURE (DEGREES F)
MAX.....52   NORMAL.....54
MIN.....37   NORMAL.....37
MEAN....45   NORMAL.....45

DEPARTURE FROM 30-YEAR NORMAL........................0
TOTAL DEPARTURE FOR THE MONTH......................+31 [+7.6 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY..............20   DEPARTURE..........0
TOTAL HEATING UNITS FOR THE MONTH..............53   DEPARTURE........-24
TOTAL HEATING UNITS FOR THE SEASON............597   DEPARTURE........-43
TOTAL HEATING UNITS LAST SEASON TO DATE.......314   DIFFERENCE......+283

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY....................31 W   AT  1:42 P.M.
                   AERO.........................30 W   AT  1:42 A.M. 
                   ASOS.........................32 WNW AT  1:43 A.M. 
                   DAVIS........................33 WNW AT  1:42 A.M. RMY N/A
FASTEST MILE FOR YESTERDAY......................20 W   AT  2:24 P.M. 
MAXIMUM 2-MINUTE ASOS AVERAGE...................22 WNW AT 12:59 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE..................22 W   AT 12:59 A.M.
AVERAGE WIND SPEED AND DIRECTION..............10.7 WNW
                   ASOS.......................10.6   
                   DAVIS......................11.1 NW [320 deg.]  

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..........1.81  DEPARTURE.......+1.19
                         ASOS..............1.87 
TOTAL PRECIPITATION FOR THE YEAR..........54.85  DEPARTURE......+10.64
                         ASOS.............56.73 


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

10/01 65/53/59/+2/0.22/042/06         21 ENE AERO 18 SSW RMY N/A
10/02 64/53/59/+2/0.77/000/00         33 S   AERO 32 S   RMY 35 TSTM
10/03 60/52/56/0/0.33/000/00          18 NNE AERO 14 NNE RMY 14
10/04 69/57/63/+7/0.00/204/30         29 SSW AERO 29 SSW RMY 32
10/05 64/47/56/0/0.00/618/92          25 NE  AERO 21 NE  RMY 24
10/06 64/45/55/0/0.00/264/40          23 SSW AERO 23 SSW RMY 25
10/07 75/56/66/+11/0.05/072/11        28 NE  AERO 24 ENE RMY 27
10/08 56/53/55/+1/0.03/000/00         22 ENE AERO 20 ENE RMY N/A
10/09 75/56/66/+12/0.00/204/31        26 WSW AERO 28 SW  RMY 29
10/10 82/65/74/+20/0.00/480/73        24 WSW AERO 23 WSW RMY 25
10/11 70/56/63/+10/0.78/000/00        48 NNE AERO 47 NNE RMY 50
10/12 59/44/52/-1/0.31/174/27         32 NW  AERO 32 NW  RMY 33
10/13 49/40/45/-8/0.17/108/17         21 WNW AERO 20 WNW RMY 20
10/14 55/37/46/-6/0.00/120/19         21 W   AERO 18 W   RMY 21
10/15 66/44/55/+3/0.06/030/05         46 W   AERO 46 W   RMY N/A
10/16 56/41/49/-2/0.03/606/94         48 W   AERO 48 W   RMY N/A
10/17 60/39/50/-1/0.01/564/89         48 W   AERO 50 W   RMY 53
10/18 45/33/39/-12/..../.../..        32 WNW AERO 35 WNW RMY 36
10/19 60/31/46/-4/..../.../..         33 SSW AERO 36 SSW RMY 36
10/20 62/46/54/+4/..../.../..         35 SSW AERO 37 SSW RMY 33
10/21 46/31/39/-11/..../.../..        39 NNW AERO 41 NW  RMY 41
10/22 50/27/39/-10/..../.../..        24 W   AERO 22 W   RMY 21
10/23 53/40/47/-2/..../.../..         29 WNW AERO 29 WNW RMY 29  TSTM
10/24 45/35/40/-9/..../.../..         31 NW  AERO 31 NW  RMY 32 
10/25 48/32/40/-9/..../.../..         35 NW  AERO 35 NW  RMY 36
10/26 45/27/36/-12/..../.../..        20 NW  AERO 19 NW  RMY N/A
10/27 48/38/43/-5/..../.../..         54 NE  AERO 55 NE  RMY 55
10/28 51/40/46/-2/..../.../..         23 NNE AERO 23 NNE RMY N/A TSTM
10/29 55/40/48/+1/..../.../..         30 WSW AERO 30 WSW RMY 34
10/30 45/34/40/-7/..../.../..         28 NW  AERO 28 NW  RMY 30
10/31 55/32/44/-3/..../.../..         35 SSW AERO 36 SSW RMY 37

DAILY RECORDS FOR OCTOBER

10/10/18: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 65F,
           BREAKS PREVIOUS RECORD OF 62F SET IN 1949


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

11/01 65/49/57/+11/..../.../..         25 SSW AERO 24 SSW RMY N/A
11/02 65/52/59/+13/..../.../..         37 SSW AERO 41 SSW RMY N/A
11/03 64/42/53/+7/..../.../..          59 W   AERO 60 W   RMY 58
11/04 52/37/45/0/..../.../..           31 W   AERO 30 W   RMY N/A

11/05 Low temp since midnight is 40F; normal low is 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: Benjamin Turner