BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, AUGUST 14, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME
 
DOWNPOURS DURING THE OVERNIGHT HOURS LEFT .46 INCHES OF RAIN
AS TEMPERATURES HEAT UP WITH A CHANCE FOR MORE RAIN ON SUNDAY
 
A line of showers and thunderstorms brought rain to the region
last night as 0.46 inches of rain fell at the observatory.  Damp
conditions brought us a cool and hazy start to the day with
temperatures around 74. 
 
As the afternoon went on, skies cleared and temperatures quickly
began to rise.  At the 1 o'clock observation, the temperature had
reached 91 degrees with the dew point at 73.  Moderate winds out of
the west and strong sun shine will make for a warm afternoon with a
risk of storms. 
 
Today's Observations:
 
7 A.M.
Weather: Scattered thick cirrocumulus and cirrostratus, Few Cumulus
Temperature: 74F; Dew Point: 71F; Wind: SW at 13 kts
Sea-level pressure: 29.90 ins. Hg, rising unsteadily
Visibility: 25 MI Hazy
6-hr Max temp: 74F
6-hr Min temp: 70F
24-hr precip: 0.46 in.
BHO SA 1155 200 SCT 25 124/74/71/2313/990/ FEW CU ESE-SSE HAZY ALQDS/
8/17/ 52017 ASOS 60030 MANUAL 70046 ASOS 70047 10074 20070  
 
10 A.M.
Weather:  Few Cumulus, Few Cirrostratus
Temperature: 87F; Dew Point: 73F; Wind: W at 13 kts
Sea-level pressure: 29.91 ins. Hg, rising slowly
Visibility: 50 miles, light distant haze
BHO SA 1455 CLR 50 129/87/73/2713/991/ FEW CU FEW CS LGT DSNT HZ/
8/1/9/ 53005
 
1 P.M.
Weather: Scattered Towering Cumulus 
Temperature: 91F; Dew Point: 73F; Wind: W at 14 kts,
Sea-level pressure: 29.90 ins. Hg, falling, then rising but lower
Visibility: 60 miles   
6-hr Max temp: 91F
6-hr Min temp: 74F
BHO SA 1755 50 SCT 60 125/91/73/2714/990/ 8/2// 55004 10091 20074

SUMMARY FOR SATURDAY, AUGUST 13, 2016
 
TEMPERATURE (DEGREES F)
MAX.....78   NORMAL.....80
MIN.....67   NORMAL.....62
MEAN....72   NORMAL.....71
 
DEPARTURE FROM 30-YEAR NORMAL........................+1
TOTAL DEPARTURE FOR THE MONTH........................+43   [+3.3 DEGREES/DAY]
 
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY..............7    DEPARTURE.........+1
TOTAL COOLING UNITS FOR THE MONTH.............130   DEPARTURE.........+39
TOTAL COOLING UNITS FOR THE SEASON............604   DEPARTURE........+162
TOTAL COOLING UNITS LAST SEASON TO DATE.......489   DIFFERENCE.......+115  
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY...................25 NNW  AT 9:41 P.M. 
                   AEROVANE....................26 NNW  AT 9:41 P.M.     
                   ASOS........................24 SE   AT 9:41 P.M. 
                   DAVIS.......................20 NNW  AT 9:40 P.M. RMY N/A
FASTEST MILE FOR YESTERDAY.....................16 N    AT 9:58 P.M. 
MAXIMUM 2-MINUTE ASOS AVERAGE..................17 N    AT 9:56 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE.................15 NNW  AT 9:56 P.M.  
AVERAGE WIND SPEED AND DIRECTION.............9.8 NE 
                   ASOS......................9.9  
                   DAVIS.....................8.8 NNE [39 Deg.]
* Last of several occurrences
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M... 0.46  DEPARTURE......+0.34
                         ASOS..............0.47
TOTAL PRECIPITATION FOR THE MONTH..........0.88  DEPARTURE......-0.96
                         ASOS..............0.87
TOTAL PRECIPITATION FOR THE YEAR..........24.07  DEPARTURE......-8.76
                         ASOS.............24.38

 
PRELIMINARY CLIMATE SUMMARY FOR AUGUST 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
 
8/1  75/65/70/-2/0.02/320/37                 21 NE  AERO 20 ENE RMY 20
8/2  71/63/67/-5/0.12/000/00                 16 ENE AERO 16 ENE RMY 16
8/3  81/60/71/-1/0.00/603/70                 18 S   AERO 16 S   RMY 17
8/4  86/61/74/+2/0.00/833/97                 23 S   AERO 22 S   RMY 17
8/5  87/61/74/+2/0.00/823/96                 29 S   AERO 29 S   RMY 30
8/6  88/67/78/+6/T/419/49                    24 SSW AERO 23 SSW RMY 23  
8/7  89/65/77/+5/0.00/.../..                 26 WNW AERO 25 WNW RMY 26
8/8  87/63/75/+3/0.00/.../..                 23 W   AERO 21 W   RMY 22
8/9  90/65/78/+6/0.00/.../..                 25 SSW AERO 24 SSW RMY 25
8/10 76/66/71/+0/0.28/.../..                 30 SSW AERO 31 SSW RMY 33
8/11 93/73/83/+12/T/.../..                   22 SSW AERO 21 SSW RMY 22
8/12 95/74/85/+14/0.00/.../..                30 SW  AER0 30 SW  RMY 31
8/13 77/67/72/+1/.../.../..                  25 NNW AERO 36 NNW RMY N/A
 
8/14 Low temp since midnight is 70F; normal low is now 62F
 
DAILY RECORDS FOR AUGUST 2016
8/11/16: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 73F,
         TIES PREVIOUS RECORD SET IN 1900 AND 1988
8/12/16: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 74F,
         TIES PREVIOUS RECORD SET IN 1988

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR AUGUST 14
HIGH 99F IN 2002
LOW 46F IN 1964
PRECIP 3.06 INCHES IN 1919
PEAK GUST 61 MPH WNW IN 1963
 
RECORDS FOR AUGUST 15
HIGH 95F IN 1928
LOW 47F IN 1964
PRECIP 1.89 INCHES IN 2011
PEAK GUST 44e MPH S IN 1941
 
TODAY'S REPORT PREPARED BY: Robert Millette