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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, AUGUST 10, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME
 
TEMPERATURES START RETURN TO NORMAL AFTER FIVE COOL DAYS
NORTHEAST WINDS GUSTING JUST OVER 25 MPH YESTERDAY WITH
SLOW CLEARING OF LOW CLOUDS LEFT HIGH TEMP. AT 72F
WINDS TURNING BACK TO SOUTHWEST--TEMPS. RISE PAST 80 DEG.
 
Yesterday, Sunday, was the coolest of the last 4 cool days
and the day averaged -6F below normal returning a warmer than
normal month to close to normal. 
Today's temperature reaching the low 80's early afternoon.
Northeast winds were gusting to just over 25 MPH during the
morning into the afternoon yesterday  before diminishing to light late.   
A bit of drizzle left a trace of precipitation during the morning hours.
Winds have turned back to light from the south to west-southwest 
this morning.
 
Today's Observations:

7 A.M.
Weather: Thin scattered cirrus clouds, two layers of high cirrus clouds
invading sky 
Temperature: 63F; Dew Point: 55F; Wind: WSW at 8 kts
Sea-level pressure: 30.07 ins. Hg, rising slightly
Visibility: 35 miles, distant haze
6-hr Max temp: 63F
6-hr Min temp: 58F
24-hr precip: 0.00 ins.
BHO SA 1155 250 -SCT 300 -SCT 35 183/63/55/2508/007/ CI INVDNG
FRM SW DSNT HZ/ 8/006 53008 10063 20058
 
10 A.M.
Weather: Scattered cirrus, thin broken cirrus [2 levels] lone
cumulus fractus vicinity SE
Temperature: 76F; Dew Point 59F; Wind: SSW at 7 kts,
Wind: Direction variability S-WSW
Sea-level pressure: 30.06 ins. Hg, falling slightly 
Visibility: 35 miles, except 45 miles WNW, distant haze   
BHO SA 1455 220 SCT 250 -BKN 300 -BKN 35 180/76/59/2207/006/
LONE CUFRA VC SE VSBY WNW 45 DSNT HZ WND 18V24/ 8/101 58003 
 
1 P.M.
Weather: Scattered cumulus, moderate cumulus, thin broken cirrus
at two levels, few dense cirrus
Temperature: 83F; Dew Point: 59F; Wind: SW at 7 kts
Sea-level pressure: 30.02 ins. Hg, falling then more rapidly
Visibility: 45 miles, except 35 miles NE, distant haze
6-hr Max temp: 84F 
6-hr Min temp: 63F
BHO SA 1755 55 SCT 220 SCT 250 -BKN 300 -BKN 45 165/83/59/2207/002/
FEW MDT CU FEW DNS CI AT 220 VSBY NE 35 DSNT HZ ALQDS WND 19V28/
8/201 58015 10084 20063
 
SUMMARY FOR SUNDAY, AUGUST 9, 2015
  
TEMPERATURE (DEGREES F)
MAX.....72   NORMAL.....80
MIN.....59   NORMAL.....63
MEAN....66   NORMAL.....72

DEPARTURE FROM 30-YEAR NORMAL........................-6
TOTAL DEPARTURE FOR THE MONTH.......................+ 7 [+0.6 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY...............1   DEPARTURE..........-6
TOTAL COOLING UNITS FOR THE MONTH..............70   DEPARTURE.........+ 6
TOTAL COOLING UNITS FOR THE SEASON............464   DEPARTURE.........+49
TOTAL COOLING UNITS LAST SEASON TO DATE.......390   DIFFERENCE........+74

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY...................27 NNE   AT   1:04 P.M.     
                   ASOS........................27 NNE   AT   1:04 P.M.   
                   DAVIS.......................24 NE    AT   1:03 P.M. RMY 26
FASTEST MILE FOR YESTERDAY.....................16 NE    AT   1:05 P.M.   
MAXIMUM 2-MINUTE ASOS AVERAGE..................17 NE    AT   1:04 P.M.     
MAXIMUM 2-MINUTE DAVIS AVERAGE.................16 NE    AT   1:03 P.M.   
AVERAGE WIND SPEED AND DIRECTION..............9.4 NE
                   ASOS.......................9.8
                   DAVIS......................8.6 ENE [060 deg.]
* Last of several occurrences...
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M.....trace DEPARTURE.....-0.14
                         ASOS...............0.00
TOTAL PRECIPITATION FOR THE MONTH...........0.37  DEPARTURE.....-0.95
                          ASOS..............0.38
TOTAL PRECIPITATION FOR THE YEAR...........27.73  DEPARTURE.....-4.58
                        ASOS...............N/A ***
*** ASOS annual total not available due to erroneous readings
 
PRELIMINARY CLIMATE SUMMARY FOR AUGUST 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
 
8/1  88/68/78/+6/0.06/.../..               28 WNW RMY N/A
8/2  86/62/74/+2/0.00/.../..               24 SW  RMY N/A
8/3  89/68/79/+7/0.00/.../..               31 S   RMY N/A 
8/4  86/66/76/+4/0.31/.../..               45 W   RMY 50  TSTM 
8/5  84/64/74/+2/0.00/.../..               28 WNW RMY 27
8/6  80/59/70/-2/0.00/.../..               22 W   RMY 21
8/7  78/61/70/-2/0.00/.../..               20 ESE RMY 18
8/8  77/58/68/-4/0.00/.../..               18 E   RMY N/A
8/9  72/59/66/-6/T/.../..                  27 NNE RMY 26  
 
8/10 low since midnight is 58F; normal low is now 63F
 
DAILY RECORDS FOR AUGUST 2015
None so far.
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR AUGUST 10
HIGH 101F IN 1949 [STATION RECORD MAXIMUM - Tied with 8/2/1975]
LOW 49F IN 1964
PRE 2.27 INS IN 1952
PEAK GUST 88e MPH S IN 1976
 
RECORDS FOR AUGUST 11
HIGH 97F IN 1944
LOW 49F IN 1972
PRECIP 3.13 INCHES IN 1990
PEAK GUST 44 MPH SW IN 1971
 
TODAY'S REPORT PREPARED BY: Robert Skilling