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

DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, AUGUST 7, 2004
ALL TIMES ARE IN EASTERN STANDARD TIME [unless otherwise noted]

BEAUTIFUL SUMMER WEATHER THIS WEEKEND...
NEW RECORD LOW TEMPERATURE OF 51 SET THIS MORNING...
Much drier air has settled over New England, replacing the warm
and humid weather from last week.  A clear sky at sunrise is filling
with building cumulus and mid-level clouds at mid-day with the
heating of the sun.  The dew point has remained around 50 degrees
since yesterday. The morning low of 51 has set a new record low
temperature for August 7, breaking the previous 52 set in 1950
and 1964.  This was the highest daily record for any day in
August, and the new record retains this distinction.  It is also
the first record low temperature since mid-January.  The cool
weather has turned the monthly temperature departure negative,
so August is now averaging slightly cooler than normal.

Today's observations:

8 A.M. EDT
Weather: Clear with a few cirrus and altocumulus
Temperature: 56F, Dewpoint: 50F, Wind: NW 10 mph,
Sea-level pressure: 29.86 inches, rising
BHO SA 1155 CLR 75 112/56/50/3209/986/ FEW CI E-ESE FEW AC DSNT
NW-NNW AND ENE FEW SC NNW/ 8/571 53007 10056 20051

11 A.M. EDT
Weather: Scattered cumulus with a few cirrus
Temperature: 67F, Dew Point: 49F, Wind: WNW 5 mph
Visibility: 75 miles
BHO SA 1455 35 SCT 75 115/67/49/3004/987/ CI S-SW WND LGT AND
VRB/ 8/201 51003

2 P.M. EDT
Weather: Scattered cumulus under broken altocumulus and cirrus
Temperature: 69F, Dew Point: 50F, Wind: W 6 mph
Visibility: 75 miles
BHO SA 1755 50 SCT E85 BKN 200 OVC 75 112/69/50/2605/986/
BINOVC ALQDS FEW MDT CU CLR BND OFFSHR E-SE WND LGT/ 8/271
55003 10072 20056

WEATHER SUMMARY FOR FRIDAY, AUGUST 6:

TEMPERATURE (DEGREES F)
MAX.....70    NORMAL.....81    ASOS.....70 AT 3:45 P.M.
MIN.....56    NORMAL.....62    ASOS.....56 AT MIDNIGHT P.M.
MEAN....63    NORMAL.....72
DEPARTURE FROM 30-YEAR NORMAL......-9
TOTAL DEPARTURE FOR THE MONTH......-3  (-0.3 DEGREES/DAY)

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY........24 N AT 12:45 A.M.
                   AEROVANE.........24 N AT 12:45 A.M.
                   ASOS.............20 N AT 12:56 A.M.
                   DAVIS............20 N AT 12:13 A.M.
FASTEST MILE FOR YESTERDAY..........15 N AT 12:32 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE.......16 N AT 12:34 A.M.
AVERAGE WIND SPEED AND DIRECTION...8.8 NNW
                   ASOS............8.0

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..........0.58   DEPARTURE....-0.17
                         ASOS..............0.55*
TOTAL PRECIPITATION FOR THE YEAR..........28.31   DEPARTURE....-1.85
                         ASOS.............26.73*
*New ASOS weighing gage installed 6/24/04 replaced former tipping gage.


PRELIMINARY CLIMATE SUMMARY FOR AUGUST 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

8/1  79/70/75/+3/0.03/.../..        32 MPH SSW     AERO 35 MPH SSW
8/2  84/69/77/+5/   0/.../..        21 MPH NE
8/3  86/69/78/+6/   0/.../..        25 MPH SW      AERO 29 MPH SW
8/4  79/65/72/ 0/0.06/.../..        24 MPH ENE
8/5  70/57/64/-8/0.49/.../..        21 MPH E
8/6  70/56/63/-9/   0/.../..        24 MPH N
8/7  overnight low 51..


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

RECORDS FOR AUGUST 7
HIGH 95F IN 1924
LOW  52F IN 1950,1964   **Old record; broken today with 51**
PRECIP 3.32 INCHES IN 1926
PEAK GUST 51 MPH NE 1975

RECORDS FOR AUGUST 8
HIGH 93F IN 1909,1949
LOW  47F IN 1903
PRECIP 3.08 INCHES IN 1976
PEAK GUST 45 MPH WNW IN 1958


TODAY'S REPORT BY: Mike Iacono