BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, AUGUST 9, 2012 
ALL TIMES ARE IN EASTERN STANDARD TIME
 
AUGUST A VERY SUNNY MONTH TO DATE
TEMPERATURES CONTINUE WELL ON THE WARM SIDE  
BELOW AVERAGE WIND SPEEDS CONTINUE
 
Our sunshine recorded through the first 8 days of August
shows this to be a very sunny month with 75% of the
possible bright sunshine to date.  The record sunniest 
August had 74% for the entire month in 1971.
 
August temperatures continue more than 5 degrees on
the plus side of normal.  The warm weather trend has
continued every month this year with the exception
of June. Our high temperature today, like yesterday,
has reached the upper 80's by early afternoon.  A
weak sea breeze may hold the maximum reading slightly
short of 90F.
 
The average August wind speed has once again fallen
below 10 mph (uncorrected) as this calmer than average
year 2012 continues. 
 
Today's observations:
 
7 A.M.
Weather: Broken stratus, broken cirrus, thin fog
Temperature: 71F; Dew Point: 68F; Wind: W @ 4 kts 
Sea-level pressure: 29.98 ins. Hg, rising then rising more slowly    
Visibility: 5 miles, thin fog  
6-hour min. temp: 68F
BHO SA 1155 E4 BKN 250 BKN 5F 152/71/68/2604/998/ CI VSB SE-SW/
8/601 51008 10071 20068 
 
10 A.M.
Weather: Cumulus/cumulus fractus forming all quadrants except NE, few
moderate cumulus distant W, cirrus E-SW, hazy 
Temperature: 81F; Dew Point: 65F; Wind: WSW @ 2 kts,
Wind: Light and variable
Sea-level pressure: 29.98 ins. Hg, falling slightly 
Visibility: 15 miles, hazy       
BHO SA 1455 CLR 15 151/81/65/E2702/998/ CUFRA/CU FRMG XCPT NE
FEW MDT CU DSNT W CI E-SW HAZY WND L/V/ 8/201 58001 
 
1 P.M.   
Weather: Scattered cumulus and moderate cumulus, few towering cumulus NW-N,
scattered cirrus, few dense patches 
Temperature: 86F; Dew Point: 63F; Wind: Calm,
Wind: Light and variable
Sea-level pressure: 29.95 ins. Hg, falling then falling more slowly
Visibility: 25 miles, hazy
6-hr. max. temp.: 88F 
BHO SA 1755 45 SCT 220 25 141/86/63/0000/995/ CU/MDT CU ALQDS
XCPT DSNT NNE-NE FEW TCU NW-N FEW PTCHS DNS CI HAZY WND L/V/
8/202 56010 10088 20071 
    
WEATHER SUMMARY FOR WEDNESDAY, AUGUST 8
TEMPERATURE (DEGREES F)
MAX.....87    NORMAL.....80
MIN.....65    NORMAL.....63
MEAN....76    NORMAL.....72
 
DEPARTURE FROM 30-YEAR NORMAL.....................+4
TOTAL DEPARTURE FOR THE MONTH....................+43 [+5.2 DEGREES/DAY]
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY.............20 S   AT  5:05 P.M.
                   AERO..................18 S   AT  5:01 P.M.
                   ASOS..................18 SSW AT  5:14 P.M.
                   DAVIS.................17 S   AT  4:33 P.M. RMY 18
THE FASTEST MILE FOR YESTERDAY...........14 S   AT  4:39 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE............15 S   AT  4:33 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE...........14 S   AT  4:33 P.M.
AVERAGE WIND SPEED AND DIRECTION.......8.7  SW
                   ASOS................9.2
                   DAVIS...............8.1 SSW [210 deg]
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00   DEPARTURE...........-0.14
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........0.72   DEPARTURE...........-0.46
                         ASOS..............0.72
TOTAL PRECIPITATION FOR THE YEAR..........22.33   DEPARTURE...........-9.84
                         ASOS.............22.27
 
PRELIMINARY CLIMATE SUMMARY FOR AUGUST 2012 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system gust
RMY:  RMY = R.M. Young wind gust recording system added 8/9/2011
TSTM: Thunderstorm day (thunder heard some time during day)
....: Data not yet available, records not finalized
 
8/1  82/66/74/+2/0.58/390/45        33 W   AERO 33 MPH W   RMY 35
8/2  87/67/77/+5/T/648/75           20 W   AERO 20 MPH W   RMY 20
8/3  90/70/80/+8/0.00/707/82        23 SW  AERO 23 MPH SW  RMY 23
8/4  91/72/82/+10/0.00/713/83       22 S   AERP 21 MPH S   RMY 23
8/5  87/72/80/+8/0.14/660/77        37 S   AERO 37 MPH SSW RMY 37
8/6  82/67/75/+3/0.00/710/83        25 WNW AERO 27 MPH WNW RMY 26
8/7  84/65/75/+3/0.00/725/85        23 S   AERO 21 MPH S   RMY 23
8/8  87/68/78/+6/0.00/578/68        20 S   AERO 18 MPH S   RMY 18
 
8/9 morning low temp: 68F; the normal low is now 63F
 
DAILY RECORDS FOR AUGUST 2012
8/4 - TIED DAILY RECORD HIGH MINIMUM TEMP OF 72F;
ties the current record of 72F in 1974.
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR AUGUST 9
HIGH 100F IN 1949
LOW 49F IN 1899
PRE 2.65 INS IN 1976
PEAK GUST 90 MPH SW IN 1968
 
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

TODAY'S REPORT PREPARED BY: Robert Skilling, Jonathan O'Brien, and
William Wilson