BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, OCTOBER 11, 2008
ALL TIMES ARE IN EASTERN STANDARD TIME UNLESS NOTED
 
CLEAR SKY ONCE AGAIN TODAY WITH EXCELLENT VISIBILITY...
The low temperature this morning was 49 degrees, which
is a few degrees warmer than average.  The mean temperature
for Friday of 61 was also above average. This erased the
remaining cold departure for the month, and October
temperature is now close the average.  Brilliant fall
colors are visible in the Neponset Valley to the west,
where the cooler valley temperatures have turned the
foliage first.  Visibility has been near 80 miles all
day, with a few distant cirrus visible to the south
from about 120 miles away. 
 
Today's observations:
 
8 A.M. EDT
Weather: Clear, few cirrus distant south to south-southwest
Temperature: 52F, Dew point: 42F,  Wind: NNW at 10 kts
Sea-level pressure: 30.42 inches Hg, rising
Visibility: 80 miles
6-hourly minimum temperature: 49F
24-hourly rainfall: 0.00 inch
BHO SA 1155 CLR 80 303/52/42/3310/042/ FEW CI DSNT S-SSW/
8/001 53024 10052 20049
 
11 A.M. EDT
Weather: Clear, few cirrus distant south-southeast to
south-southwest
Temperature: 62F, Dew point: 43F, Wind: NW at 3 kts,
Wind: Light and variable
Sea-level pressure: 30.44 inches Hg, rising
Visibility: 80 miles
BHO SA 1455 CLR 80 309/62/43/3203/044/ FEW CI DSNT SSE-SSW
WND LGT AND VRB/ 8/001 51006
 
2 P.M. EDT
Weather: Clear, few cumulus and distant cirrus
Temperature: 66F, Dew point: 42F, Wind: NW at 7 kts
Wind: Light and variable
Sea-level pressure: 30.40 inches Hg, falling
Visibility: 80 miles
6-hourly max. temp. 66F
BHO SA 1755 CLR 80 296/66/42/3007/040/ FEW CI DSNT S-SSW
FEW CU S-NNE WND LGT AND VRB/ 8/101 58013 10066 20052
 
WEATHER SUMMARY FOR FRIDAY, OCTOBER 10
 
TEMPERATURE (DEGREES F)
MAX.....69    NORMAL.....63
MIN.....53    NORMAL.....45
MEAN....61    NORMAL.....54
 
DEPARTURE FROM 30-YEAR NORMAL.............+7
TOTAL DEPARTURE FOR THE MONTH..............0 (-0.2 DEGREES/DAY)
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............29   W  AT  2:15 A.M.
                   AEROVANE.............25   W  AT  2:15 A.M.
                   ASOS.................26 WNW  AT  2:15 A.M.
                   DAVIS................27   W  AT  2:14 A.M.
FASTEST MILE FOR YESTERDAY..............21   W  AT  1:28 A.M. 
MAXIMUM 2-MINUTE ASOS AVERAGE...........18 WNW  AT  2:16 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE..........20   W  AT  1:32 A.M.
                   AVERAGE.............12.4  W
                   ASOS................11.2
                   DAVIS...............12.4  W [269 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..........0.62   DEPARTURE.......-0.78
                         ASOS..............0.63
TOTAL PRECIPITATION FOR THE YEAR..........43.52   DEPARTURE.......+4.52
                         ASOS.............46.11 #
#  Includes erroneous ASOS precipitation data on 2/13/08.
 
PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 2008 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane recording wind system gust when significant
TSTM: Thunderstorm day (thunder heard some time during day)
....: Data not yet available, records not finalized
 
10/1  68/58/63/+6/0.49/120/17     38 SW   TSTM #
10/2  62/46/54/-2/0.12/455/65     45 W
10/3  62/45/54/-2/T/376/54        44 SSW  Aero 43 MPH SSW
10/4  61/40/51/-5/0.00/612/88     32 WSW
10/5  53/45/49/-6/T/000/00        18 WNW
10/6  58/39/49/-6/0.00/303/44     28 WNW
10/7  64/37/51/-4/0.00/.../..     23 WNW
10/8  69/43/56/+2/0.00/.../..     32 S    Aero 30 MPH S
10/9  72/55/64/+10/0.02/.../..    33 WSW 
10/10 69/53/61/+7/0.00/.../..     29 W
 
10/11 morning low temp. 49F; the normal low 44F
 
# Thunderstorm gust 
 
NEW DAILY RECORDS FOR OCTOBER
 
None...
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR OCTOBER 11
HIGH 80 IN 1919,1949
LOW 28 IN 1993
PRECIP 0.96 INCHES IN 1903
SNOWFALL (NONE)
PEAK GUST 66e MPH WNW IN 1941
 
RECORDS FOR OCTOBER 12
HIGH 87 IN 1954
LOW 31 IN 1906
PRECIP 1.53 INCHES IN 1948
SNOWFALL TRACE IN 1941
PEAK GUST 55 MPH NW IN 1963
 
TODAY'S REPORT PREPARED By: Mike Iacono