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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, AUGUST 15, 2016 
ALL TIMES ARE IN EASTERN STANDARD TIME

PLEASANT CONDITIONS BRIEFLY RETURN, EVENING THUNDERSTORM BRINGS MORE RAIN

An evening thunderstorm brought an additional 0.09 inches of rain to 
Blue Hill yesterday making our monthly deficit 1.00 inch. Pleasant 
conditions returned to the area as drier air moved in with dewpoints 
in the low 60s. Temperatures were cooler as they reached a high of 89F 
by the 1:00PM observation.

Today's Observations:

7 A.M. 
Weather: Few cirrocumulus in all directions, scattered altocumulus,
broken cirrus
Temperature: 73F; Dew Point: 66F; Wind: NW at 7 kts 
Sea-level pressure: 30.10 ins. Hg, rising, then less quickly
Visibility: 60 miles
6-hr Max temp: 73F 
6-hr Min temp: 68F
24-hr precip: 0.09 in.
BHO SA 1155 190 SCT E300 BKN 60 194/73/66/3107/010/ FEW CC ALQDS/
8/032 51020 MANUAL 70009 ASOS 70008 10073 20068

10 A.M.
Weather: Few cumulus in all directions, few cirrocumulus NW-NNE,
scattered cirrus
Temperature: 83F; Dew Point: 64F; Wind: WNW at 9 kts
Sea-level pressure: 30.13 ins. Hg, rising, then more quickly 
Visibility: 70 miles
BHO SA 1455 300 SCT 70 202/83/64/3009/013/ FEW CU ALQDS 
FEW CC NW-NNE/ 8/101 53008

1 P.M.
Weather: Scattered cumulus, few cirrostratus SW-NNE, few cirrus 
in all directions
Temperature: 88F; Dew Point: 63F; Wind: W at 8 kts
Sea-level pressure: 30.13 ins. Hg, falling, then rising
Visibility: 70 miles    
6-hr Max temp: 89F 
6-hr Min temp: 72F
BHO SA 1755 44 SCT 70 202/88/63/2808/013/ FEW CS SW-NNE FEW CI ALQDS/ 
8/105 55000 10089 20072
 
SUMMARY FOR SUNDAY, AUGUST 14, 2016 
 
TEMPERATURE (DEGREES F)
MAX.....94   NORMAL.....80
MIN.....69   NORMAL.....62 
MEAN....82   NORMAL.....71

DEPARTURE FROM 30-YEAR NORMAL.......................+11
TOTAL DEPARTURE FOR THE MONTH.......................+54 [+3.7 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY..............17   DEPARTURE.........+11
TOTAL COOLING UNITS FOR THE MONTH.............147   DEPARTURE.........+50
TOTAL COOLING UNITS FOR THE SEASON............621   DEPARTURE........+173
TOTAL COOLING UNITS LAST SEASON TO DATE.......499   DIFFERENCE.......+122   

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY...................39 SSW AT 1:24 A.M.  
                   AEROVANE....................40 SSW AT 1:22 A.M.      
                   ASOS........................43 SSW AT 1:25 A.M.  
                   DAVIS.......................42 SSW AT 1:29 A.M. RMY N/A
FASTEST MILE FOR YESTERDAY.....................29 SW  AT 1:27 A.M.  
MAXIMUM 2-MINUTE ASOS AVERAGE..................30 SSW AT 1:29 A.M. 
MAXIMUM 2-MINUTE DAVIS AVERAGE.................30 S   AT 1:29 E.M.   
AVERAGE WIND SPEED AND DIRECTION.............12.7 WSW  
                   ASOS......................12.9   
                   DAVIS.....................11.4 SW [230 Deg.]
* Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M... 0.09  DEPARTURE......-0.04
                         ASOS..............0.08
TOTAL PRECIPITATION FOR THE MONTH..........0.97  DEPARTURE......-1.00
                         ASOS..............0.95
TOTAL PRECIPITATION FOR THE YEAR..........24.16  DEPARTURE......-8.80
                         ASOS.............24.46
 

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 TSTM
8/14 94/69/82/+11/.../.../..                 39 SSW AERO 40 SSW RMY N/A TSTM

8/15 Low temp since midnight is 68F; normal low is now 62F

DAILY RECORDS FOR AUGUST 2016
8/11/16: NEW DAILY RECORD HIGH MINIMUM TEMPERATURE OF 73F,
TIES PREVIOUS RECORDS SET IN 1900 AND 1988

8/12/16: NEW 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 15
HIGH 95F IN 1928
LOW 47F IN 1964
PRECIP 1.89 INCHES IN 2011 
PEAK GUST 44e MPH S IN 1941

RECORDS FOR AUGUST 16
HIGH 95F IN 1944
LOW 50F IN 1927
PRECIP 1.47 INCHES IN 1926
PEAK GUST 45e MPH N IN 1951

TODAY'S REPORT PREPARED BY: Cecilia Borries-Strigle and Lizzy Suzedell