BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, OCTOBER 17, 2008 
ALL TIMES ARE IN EASTERN STANDARD TIME UNLESS NOTED
 
Today's observations:
 
8 A.M. EDT
Weather: Broken stratocumulus
Temperature: 46F, Dew point: 40F, Wind: NW at 12 kt
Wind: Direction variability W-N
Sea-level pressure: 30.04 inches Hg, rising
Visibility: 55 miles
6-hourly minimum temperature: 45F
24-hourly rainfall: Trace
BHO SA 1155 E50 BKN 55 174/46/40/3112/004/ WND 27V01/
8/500 53020 10050 20045
 
11 A.M. EDT
Weather: Clear, few stratocumulus all quadrants,
few cirrus distant east-south
Temperature: 54F, Dew point: 40F, Wind: N at 8 kt
Wind: Direction variability W-NE
Sea-level pressure: 30.06 inches Hg, rising
Visibility: 70 miles
BHO SA 1455 CLR 70 179/54/40/3508/006/ FEW SC ALQDS
FEW CI DSNT E-S WND 27V05/ 8/501 50005
 
2 P.M. EDT
Weather: Broken stratocumulus, broken cirrus
Temperature: 55F, Dew point: 38F, Wind: NW at 6 kt
Wind: Light and variable
Sea-level pressure: 30.04 inches Hg, falling
Visibility: 80 miles
BHO SA 1755 E50 BKN 250 BKN 80 173/55/38/3206/004/
WND LGT AND VRB/ 8/501 58006 10057 20046
 
WEATHER SUMMARY FOR THURSDAY, OCTOBER 16
 
TEMPERATURE (DEGREES F)
MAX.....67    NORMAL.....60
MIN.....51    NORMAL.....43
MEAN....59    NORMAL.....51
 
DEPARTURE FROM 30-YEAR NORMAL.............+8
TOTAL DEPARTURE FOR THE MONTH............+34 (+1.9 DEGREES/DAY)
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............35 NW  AT  7:38 P.M.
                   AEROVANE.............36 NW  AT  7:38 P.M.
                   ASOS.................35 N   AT  7:38 P.M.
                   DAVIS................33 NW  AT  7:35 P.M.
FASTEST MILE FOR YESTERDAY..............23 NW  AT  7:36 P.M. *
MAXIMUM 2-MINUTE ASOS AVERAGE...........22 N   AT  7:39 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE..........24 NW  AT  7:39 P.M.
                   AVERAGE..............14.2 S
                   ASOS.................13.8
                   DAVIS................12.8 SSW [209 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..........0.62   DEPARTURE.......-1.62
                         ASOS..............0.63
TOTAL PRECIPITATION FOR THE YEAR..........43.52   DEPARTURE.......+3.68
                         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/-4/0.00/687/100    23 WNW
10/8  69/43/56/+2/0.00/581/85     32 S    Aero 30 MPH S
10/9  72/55/64/+10/0.02/510/75    33 WSW 
10/10 69/53/61/+7/0.00/664/98     29 W
10/11 68/49/59/+6/0.00/668/99     20 NNW
10/12 67/47/57/+4/0.00/625/93     21 W
10/13 62/50/56/+4/0.00/308/46     20 NE
10/14 65/50/58/+6/0.00/.../..     30 SSE
10/15 64/52/58/+6/0.00/.../..     21 ENE  Aero 17 MPH WNW
10/16 67/51/59/+8/T/.../..        35 NW
 
10/17 morning low temp. 45F; the normal low 42F
 
# 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 17
HIGH 86F IN 1947
LOW 25F IN 1886
PRECIP 1.87 INCHES IN 1989
SNOWFALL TRACE IN 1970
PEAK GUST 55 MPH NE IN 1964
 
RECORDS FOR OCTOBER 18
HIGH 82F IN 1908
LOW 26F IN 1939
PRECIP 2.79 INCHES IN 1975
SNOWFALL TRACE IN 1972
PEAK GUST 66 MPH S IN 1967
 
TODAY'S REPORT PREPARED By: Stephanie Radner