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

DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, AUGUST 19, 2005
ALL TIMES ARE IN EASTERN STANDARD TIME [unless otherwise noted]

Today's observations:

7 A.M. EST
Weather: Thin broken cirrus
Temperature: 65F, Dew point: 54F, Wind: E at 8 kt
Sea-level pressure: 30.19 inches Hg, rising
Visibility: 40 miles
BHO SA 1155 220 BKN 40 223/65/54/1008/019/
K LYR ALNG HRZN W-NE/ 8/001 53008 10065 20060

10 A.M. EST
Weather: Overcast cirrus
Temperature: 74F, Dew point: 53F, Wind: E at 7 kt
Sea-level pressure: UKN
Visibility: 40 miles
BHO SA 1455 220 BKN 40 .../74/53/1007/.../
FEW AC SE FEW SC FRMG DSNT N WND 02V16/ 8/571 5....

1 P.M. EST
Weather: Broken altocumulus, overcast cirrus
Temperature: 75F, Dew point: 57F, Wind: E at 8 kt
Sea-level pressure: UKN
Visibility: 35 miles
BHO SA 1755 180 BKN 250 OVC 35 .../75/57/0908/.../
CLR DSNT NE/ 8/071 5.... 10077 20065


WEATHER SUMMARY FOR THURSDAY, AUGUST 18

TEMPERATURE (DEGREES F)
MAX.....77   NORMAL.....79    ASOS.....M
MIN.....59   NORMAL.....61    ASOS.....M
MEAN....68   NORMAL.....70
DEPARTURE FROM 30-YEAR NORMAL......-2
TOTAL DEPARTURE FOR THE MONTH.....+82 (+4.6 DEGREES/DAY)

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY.........17 SW AT  1:46 P.M.
                   AEROVANE..........19 SW AT  1:45 P.M.
                   ASOS..............M
FASTEST MILE FOR YESTERDAY...........13 NW AT 12:10 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE........M
AVERAGE WIND SPEED AND DIRECTION....6.9 NW
                   ASOS..............M

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00   DEPARTURE....-0.13
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........4.68   DEPARTURE....+2.37
                         ASOS..............4.63
TOTAL PRECIPITATION FOR THE YEAR..........38.21   DEPARTURE....+6.64
                         ASOS.............37.03*
*EXCLUDES 3.19 INCHES OF ERRONEOUS PRECIPITATION RECORDED FROM 1/23-1/28.


PRELIMINARY CLIMATE SUMMARY FOR AUGUST 2005......CALENDAR DAY DATA
DATA REPORTED:
DATE  MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST

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

8/1   85/62/74/+2/0.72/416/48     32 WNW  Aero 36 MPH WNW TSTM
8/2   87/65/76/+4/0.03/821/95     21 W
8/3   87/67/77/+5/0/578/67        20 WNW
8/4   85/66/76/+4/0/800/93        25 SE
8/5   95/67/81/+9/0.49/515/60     51 WSW  TSTM Aero 50 MPH WSW
8/6   82/65/74/+2/0/.../..        21 NNE
8/7   85/63/74/+3/0/.../..        22 S
8/8   92/66/79/+8/0/.../..        23 S
8/9   87/70/79/+8/0.02/221/26     28 S
8/10  88/69/79/+8/0/670/79        24 SSE
8/11  90/69/80/+9/T/.../..        23 NE
8/12  89/68/79/+8/T/.../..        28 S
8/13  94/75/85/+14/0.34/.../..    27 SW TSTM
8/14  90/64/77/+7/2.79/.../..     32 E  TSTM Aero 32 MPH E
8/15  64/60/62/-8/0.29/000/00     28 N
8/16  74/59/67/-3/0/.../..        20 SSE
8/17  84/63/74/+4/0/.../..        22 NNW
8/18  77/59/68/-2/0/.../..        17 SW


DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):

RECORDS FOR AUGUST 19
HIGH      90F IN 1906, 1966, 2002
LOW       48F IN 1958
PRECIP    7.02 INCHES IN 1955 [DIANE - RECORD FOR MONTH]
PEAK GUST 78 MPH ENE 1991

RECORDS FOR AUGUST 20
HIGH      93F IN 1937
LOW       48F IN 1896, 1905, 1949
PRECIP    2.71 INCHES IN 1970
PEAK GUST 47 MPH W 1983

TODAY'S REPORT BY: Andrew Hoell