BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, NOVEMBER 19, 2015 
ALL TIMES ARE IN EASTERN STANDARD TIME
 
CLOUDS THICKENING AHEAD OF APPROACHING SYSTEM AND RAIN
TEMPERATURES RISE FROM UPPER 30'S TO LOW TO MID 50'S
 
Clouds were increasing at several levels today and no
sunshine was getting through bright spots in the overcast.
The sun was dimly visible at sunrise as it came over the
horizon. Mount Wachusett was hidden by clouds today at
2000 feet and visibility was between 30 and 40 miles.
Rainfall is expected later today, and it is badly needed 
with the monthly deficit over 2 inches. For the year it's now
reached minus 8.97 inches!
 
Today's Observations:
 
7 A.M.
Weather: Overcast altostratus, altocumulus, few stratocumulus
distant ENE-ESE, line of bright sky along/above horizon NE-SE,
sunrise sun dimly visible  
Temperature: 41F; Dew Point: 40F; Wind: SE at 15 kts
Sea-level pressure: 30.42 ins. Hg, steady
Visibility: 30 miles, except 25 SW-NW, light distant fog, 35 miles
NE-SE
6-hr Max temp: 41F
6-hr Min temp: 38F
24-hr precip: none
BHO SA 1155 E15 OVC 30 301/41/40/1315/042/ FEW SC DSNT ENE-ESE ABV 
HRZN BND BRGHT SKY XTDNG ABV/ALG HRZN NE-SE SUN DMLY VSB AT S/R
VSBY SW-NW 25 NE-SE 35 THN DSNT FG SW-NW/ 8/07/ 58000 10041 20038
 
10 A.M.
Weather: Scattered stratocumulus, overcast stratocumulus,
few stratus bright spots in overcast   
Temperature: 47F; Dew Point 43F; Wind: SSE at 12 kts,
Sea-level pressure: 30.38 ins. Hg, falling then more slowly
Visibility: 40 miles, mountain in cloud 45  miles WNW, distant haze
BHO SA 1455 E22 BKN 45 OVC 40 286/47/43/1512/038/ FEW STRA BRGHT SPTS
IOVC MTN 45 WNW INCLD DSNT HZ/ 8/5// 56015
     
1 nov19u.tP.M.
Weather:Scattered stratocumulus, overcast stratocumulus, small break
in overcast overhead, bright spots in overcast, sun occasionally dimly
visible  
Temperature: 54F; Dew Point 47F; Wind: SSE at 10G17 kts
Sea-level pressure: 30.29 ins. Hg. falling then more slowly 
Visibility: 30 miles, distant haze 
6-hr max. temp. 54F 
6-hr min. temp. 41F 
BHO SA 1755 17 SCT E30 OVC 30 258/53/47/1610G17/029/ SML BINOVC OVHD
BRGHT SPTS IOVC SUN OCNO VSB DSNT HZ/ 8/5// 56028 10054 20041
 
SUMMARY FOR WEDNESDAY, NOVEMBER 18, 2015
  
TEMPERATURE (DEGREES F)
MAX.....50   NORMAL.....49
MIN.....35   NORMAL.....33
MEAN....43   NORMAL.....41

DEPARTURE FROM 30-YEAR NORMAL......................+2
TOTAL DEPARTURE FOR THE MONTH....................+115  [+6.2 DEGREES/DAY]
 
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY..............22   DEPARTURE..........-2
TOTAL HEATING UNITS FOR THE MONTH.............269   DEPARTURE........-114
TOTAL HEATING UNITS FOR THE SEASON............723   DEPARTURE........-223
TOTAL HEATING UNITS LAST SEASON TO DATE.......823   DIFFERENCE.......-100

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY...................17 SSE AT  11:12 P.M.  
                   ASOS........................21 SSE AT  11:15 P.M.         
                   DAVIS.......................21 SSE AT  11:11 P.M. RMY N/A
FASTEST MILE FOR YESTERDAY.....................15 SE  AT  11:12 P.M.  
MAXIMUM 2-MINUTE ASOS AVERAGE..................16 SE  AT  11:15 P.M.          
MAXIMUM 2-MINUTE DAVIS AVERAGE.................16 SSE AT  11:14 P.M.          
AVERAGE WIND SPEED AND DIRECTION...............7.9 S 5 NNE
                   ASOS........................8.1     
                   DAVIS.......................7.2 S [180 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...........0.80  DEPARTURE.....-2.03
                         ASOS...............0.80
TOTAL PRECIPITATION FOR THE YEAR...........37.63  DEPARTURE.....-8.97 
                         ASOS................N/A ***
*** ASOS annual total not available due to erroneous readings
 
PRELIMINARY CLIMATE SUMMARY FOR 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
 
11/1  59/45/52/+6/T/006/01                  30 SSW RMY 31 
11/2  62/47/55/+9/0.00/476/77               24 W   RMY N/A
11/3  71/44/58/+12/0.00/616/100             25 W   RMY 25
11/4  66/49/58/+13/0.00/601/98              22 SSW RMY N/A
11/5  72/51/62/+17/0.00/281/46              31 SW  RMY 36 
11/6  71/60/66/+21/0.00/109/18              35 SSW RMY 38
11/7  64/46/55/+10/0.00/024/04              33 WNW RMY 35
11/8  54/39/47/+3/0.00/591/98               26 NW  RMY 30
11/9  59/38/49/+5/0.00/577/96               20 W   RMY 21
11/10 53/45/49/+5/..../000/00               28 NE  RMY N/A
11/11 48/43/46/+3/..../000/00               41 NE  RMY N/A
11/12 55/42/49/+6/..../000/00               28 S   RMY 30
11/13 57/41/49/+6/..../385/65               40 WSW RMY 47
11/14 45/31/38/-4/0.00/425/72               40 NW  RMY 47 
11/15 51/31/41/-1/0.00/.../..               25 W   RMY 27
11/16 59/36/48/+6/0.00/.../..               25 NNW RMY 29
11/17 45/28/37/-4/0.00/.../..               18 NNE RMY N/A
11/18 50/35/43/+2/0.00/.../..               17 SSE RMY N/A
 
11/19 low since midnight is 38F; normal low is now 33F 
 
DAILY RECORDS FOR 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 19
HIGH 72 IN 1941
LOW 10 IN 1936
PRECIP 1.92 INCHES IN 1926
SNOWFALL 11.0 INS IN 1986
PEAK GUST 59e E IN 1945
 
RECORDS FOR NOVEMBER 20
HIGH 72 IN 1953
LOW 10 IN 1894
PRECIP 2.78 INS IN 1988
SNOWFALL 3.0 INS IN 1897
PEAK GUST 73e S IN 1950
 
TODAY'S REPORT PREPARED BY: Robert Skilling