BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, OCTOBER 17, 2004
ALL TIMES ARE IN EASTERN STANDARD TIME [unless otherwise noted]

Today's observations:

8 A.M. EDT
Weather: Clear with a few cirrus and stratocumulus
Temperature: 41F, Dewpoint: 39F, Wind: SW at 15-kt,
Sea-level pressure: 29.71 rising
BHO SA 1155 CLR 15 060/41/39/2415G22/971/ FEW CI ALQDS FEW SC FRMG S 
K LYR ALNG HRZN S-W-N PTCHY GF W/ 8/501 53021 10047 20041 70003

11 A.M. EDT
Weather: Scattered stratocumulus and thin overcast cirrus
Temperature: 50F, Dew Point: 38F, Wind: SW at 16-kt
Visibility: 35 miles
BHO SA 1455 40 SCT 200 -OVC 35 066/50/38/2116G20/972/ SC FRMG ALQDS/ 
8/501 50006

2 P.M. EDT
Weather: Clear with thin overcast cirrus and broken stratocumulus
Temperature: 53F, Dewpoint: 33F, Wind: SW at 17-kt,
Sea-level pressure: 29.70 falling
BHO SA 1755 40 BKN 200 -OVC 45 059/53/33/2417G23/970/ PK WND 2227/20/ 
8/501 58007 10055 20041

WEATHER SUMMARY FOR SATURDAY, OCTOBER 16:

TEMPERATURE (DEGREES F)
MAX.....62    NORMAL.....60    ASOS.....61 AT 12:47 P.M.
MIN.....47    NORMAL.....42    ASOS.....47 AT 10:28 P.M.
MEAN....55    NORMAL.....51
DEPARTURE FROM 30-YEAR NORMAL......+4
TOTAL DEPARTURE FOR THE MONTH.....+31  (+1.9 DEGREES/DAY)

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY........39 SW AT 2:18 P.M.
                   AEROVANE.........42 SW AT 2:25 P.M.
                   ASOS.............39 SW AT 2:16 P.M.
FASTEST MILE FOR YESTERDAY..........34 SW AT 2:16 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE.......32 SW AT 2:18 P.M.
AVERAGE WIND SPEED AND DIRECTION..16.2 SW
                   ASOS...........16.3

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.03   DEPARTURE....-0.11
                         ASOS..............0.03
TOTAL PRECIPITATION FOR THE MONTH..........1.38   DEPARTURE....-0.86
                         ASOS..............1.38*
TOTAL PRECIPITATION FOR THE YEAR..........43.64   DEPARTURE....+3.80
                         ASOS.............41.98*
*New ASOS weighing gage installed 6/24/04 replaced former tipping gage.


PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 2004......CALENDAR DAY DATA
DATA REPORTED:
DATE  MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST

AERO: Aerovane recording wind system when significant
TSTM: Thunderstorm day
....: Data not yet available

10/1  68/51/60/+3/0/591/84      16 MPH ESE
10/2  68/52/60/+4/0.01/056/08   22 MPH S
10/3  59/46/53/-3/0/621/89      27 MPH NNW
10/4  68/46/57/+1/0/626/90      23 MPH W
10/5  55/40/48/-7/0/665/96      32 MPH NW   Aero 35 MPH NW
10/6  61/37/49/-6/0/669/97      23 MPH SSW
10/7  71/46/59/+4/0/653/95      17 MPH WSW
10/8  74/54/64/+10/0/650/95     23 MPH S
10/9  71/56/64/+10/0/143/21     28 MPH S
10/10 66/48/57/+3/T/251/37      27 MPH NW
10/11 62/45/54/+1/0/412/61      30 MPH WNW  Aero 35 MPH WNW
10/12 59/45/52/-1/0.06/155/23   35 MPH WNW  Aero 39 MPH WNW
10/13 69/41/55/+3/0/637/95      22 MPH WSW
10/14 57/46/52/0/0.07/.../..    28 MPH NNE
10/15 59/54/57/+5/..../.../..   23 MPH N
10/16 62/47/55/+4/.../.../..    39 MPH SW

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 BY: Andrew Hoell