BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, NOVEMBER 22, 2015 
ALL TIMES ARE IN EASTERN STANDARD TIME
 
CLOUDY AND HAZY CONDITIONS KEEP DAMP AND COOL AIR LOCKED
IN PLACE
 
Seasonable, cloudy and hazy conditions began with the
first observation and continued through the 1 o'clock
observation as temperatures struggled to get out of the
lower 40s.  Some drizzle moved across the summit for
a short time between 8 and 9 AM but quickly ended and
did not begin again until just before the 1 o'clock observation.      
 

Today's Observations:
 
7 A.M.
Weather: Scattered Cumulus, Overcast Stratocumulus
Temperature: 41F; Dew Point: 37F; Wind: ESE at 11 kts
Sea-level pressure: 29.91 ins. Hg, falling then steady
Visibility: 25 miles
6-hr Max temp: 42F
6-hr Min temp: 39F
24-hr precip: 0.00 ins.
BHO SA 1155 40 SCT E60 OVC 25 128/41/37/1211/991/ 8/8//
56014 10042 20039
 
10 A.M.
Weather: Overcast stratocumulus
Temperature: 45F; Dew Point 45F; Wind: ESE at 4 kts,
Wind: Light
Sea-level pressure: 29.92 ins. Hg, rising slightly
Visibility: 20 miles
BHO SA 1455 E12 OVC 20 131/45/45/1404/992/ WND LGT/ 8/6// 50003
    
1 P.M.
Weather: Overcast, light rain shower
Temperature: 42F; Dew Point: 41F; Wind: NNW at 5 kts
Wind: Light
Sea-level pressure: 29.88 ins. Hg. falling then steady
Visibility: 15 miles
6-hr max. temp. 45F 
6-hr min. temp. 41F 
BHO SA 1755 E8 OVC 15RW- 121/42/41/3405/988/ WND LGT/ 8/6//
56010 10045 20041
 
 
SUMMARY FOR SATURDAY, NOVEMBER 21, 2015
  
TEMPERATURE (DEGREES F)
MAX.....46   NORMAL.....48
MIN.....35   NORMAL.....32
MEAN....41   NORMAL.....40

DEPARTURE FROM 30-YEAR NORMAL.....................+1
TOTAL DEPARTURE FOR THE MONTH....................+131  [+6.4 DEGREES/DAY]
 
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY..............24   DEPARTURE..........-1
TOTAL HEATING UNITS FOR THE MONTH.............326   DEPARTURE........-131
TOTAL HEATING UNITS FOR THE SEASON............780   DEPARTURE........-240
TOTAL HEATING UNITS LAST SEASON TO DATE.......929   DIFFERENCE.......-146

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY...................20 ENE AT  12:13 P.M.*  
                   ASOS........................22 WSW AT  12:56 A.M.         
                   DAVIS.......................20 NNW AT  1:13 A.M. RMY 21
FASTEST MILE FOR YESTERDAY.....................17   N AT  1:15 A.M.  
MAXIMUM 2-MINUTE ASOS AVERAGE..................17 NNW AT  1:14 A.M.          
MAXIMUM 2-MINUTE DAVIS AVERAGE.................15   N AT  1:14 A.M.          
AVERAGE WIND SPEED AND DIRECTION...............8.8 N
                   ASOS........................8.2     
                   DAVIS.......................7.7 NNE [36 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...........1.98  DEPARTURE.....-1.32
                         ASOS...............2.02
TOTAL PRECIPITATION FOR THE YEAR...........38.81  DEPARTURE.....-8.27 
                         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/+10/0.00/029/04              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 55/38/47/+6/..../.../..               29 SSE RMY N/A
11/20 58/41/50/+10/..../.../..              43 SSE RMY N/A
11/21 46/35/41/+1/0.00/.../..               20 ENE RMY 21
 
11/22 low since midnight is 39F; normal low is now 32F 
 
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 22
HIGH 70 IN 1931
LOW 12 IN 1987
PRECIP 1.78 INS IN 2005
SNOWFALL 9.0 INS IN 1971
PEAK GUST 70e SE IN 1945
 
RECORDS FOR NOVEMBER 23
HIGH 73 IN 1931
LOW 9 IN 1888
PRECIP 2.33 INS IN 2006
SNOWFALL 5.5 INS IN 1989
PEAK GUST 64e S IN 1953
 
TODAY'S REPORT PREPARED BY: Robert Millette