BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, OCTOBER 12, 2008
ALL TIMES ARE IN EASTERN STANDARD TIME UNLESS NOTED
 
ANOTHER VERY SUNNY, MILD AND DRY OCTOBER DAY AND THE
MONTHLY TEMPERATURE AVERAGE TURNS TO ABOVE NORMAL
 
The first week of October was close to 3 degrees
cooler than the normal but now with the last four
days on the warm side and counting the monthly
average has swung up to above the normal.  
Saturday's mean of 59F was six above average and today
looks like it will have a similar departure.  
Clear and very sunny, dry weather continue today
and the sunshine for October continues to increase
well beyond the average (55%) for this month. In
fact, the first 10 days of the month are averaging
63 per cent.
 
Today's observations:
 
8 A.M. EDT
Weather: Clear, few thin cirrus overhead thru ESE thru SW
Temperature: 52F, Dew point: 40F,  Wind: NNW at 7 kts
Sea-level pressure: 30.53 inches Hg, rising
Visibility: 70 miles, few patches very thin steam fog
over ponds 1 mile southeast
6-hourly minimum temperature: 47F
24-hourly rainfall: 0.00 inch
BHO SA 1155 CLR 70 340/52/40/3407/053/ FEW THN CI OVHD-ESE-SW 
PTCH VRY THN STEAM FG OVR PONDS 1 MI SE/ 8/001 51016 10052 20047
 
11 A.M. EDT
Weather: Clear, few small cumulus forming distant
in the southeast 
Temperature: 60F, Dew point: 41F, Wind: W at 3 kts,
Sea-level pressure: 30.54 inches Hg, falling
Visibility: 70 miles 
BHO SA 1455 CLR 70 342/60/41/E2803/054/ FEW SML CU FRMG DSNT SE/ 
8/100 50002
 
WEATHER SUMMARY FOR SATURDAY, OCTOBER 11
 
TEMPERATURE (DEGREES F)
MAX.....68    NORMAL.....62
MIN.....49    NORMAL.....44
MEAN....59    NORMAL.....53
 
DEPARTURE FROM 30-YEAR NORMAL.............+6
TOTAL DEPARTURE FOR THE MONTH.............+6 (+0.3 DEGREES/DAY)
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............20 NNW  AT  10:54 P.M. * 
                   AEROVANE.............16 WNW  AT   1:44 P.M.
                   ASOS.................20 NNW  AT  10:58 P.M. 
                   DAVIS................19 NNW  AT  N/A
FASTEST MILE FOR YESTERDAY..............15 NNW  AT  10:52 P.M. *    
MAXIMUM 2-MINUTE ASOS AVERAGE...........15 NNW  AT  10:53 P.M. 
MAXIMUM 2-MINUTE DAVIS AVERAGE..........16 NNW  AT  N/A 
                   AVERAGE............. 8.7 NNW
                   ASOS.................9.2
                   DAVIS................9.3 NW [320 deg]
 
* last of several occurrences...
 
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.......-0.92
                         ASOS..............0.63
TOTAL PRECIPITATION FOR THE YEAR..........43.52   DEPARTURE.......+4.38
                         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/.../..     20 NNW
 
10/12 morning low temp. 47F; 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 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
 
RECORDS FOR OCTOBER 13
HIGH 84 IN 1930,1954
LOW 30 IN 1934,1936,1988
PRECIP 5.92 INCHES IN 1895
SNOWFALL 4.2 INCHES IN 1934
PEAK GUST 46e MPH W IN 1950
 
TODAY'S REPORT PREPARED By: Robert Skilling