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

DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, SEPTEMBER 11,  2004
ALL TIMES ARE IN EASTERN DAYLIGHT TIME

TODAY'S DISCUSSION...2 P.M.

A very pleasant day is in progress over the region with temperatures rising
to the mid and upper 60s early this afternoon. Dewpoint readings have been
in the upper 40s and lower 50s allowing for a bit of a chill in the air.
Visibility is averaging between 70 and 80 miles which has been the theme all
day thus far.


TODAY'S OBSERVATIONS:

8 a.m.
BHO SA 1155 250 BKN 80 255/57/54/3509/028/ 8/002 53024 10057 20055

11 a.m.
BHO SA 1455 E200 BKN 250 BKN 80 262/64/48/0409/030/ FEW SC/CU DSNT
E-SE AND DSNT W-NW WND L/V/ 8/502 51007

2 p.m.
BHO SA 1755 E180 BKN 250 BKN 70 259/68/51/0409/029/ FEW SC/CU DSNT
E-SE AND DSNT WSW-NW FEW CC E-SE WND L/V/ 8/502 56003 10069 20057


ALL TIMES EASTERN DAYLIGHT TIME..

WEATHER SUMMARY FOR FRIDAY, SEPTEMBER 10:

TEMPERATURE (DEGREES F)
MAX.....74    NORMAL.....73
MIN.....56    NORMAL.....55
MEAN....65    NORMAL.....64

DEPARTURE FROM 30-YEAR NORMAL.....+ 1
TOTAL DEPARTURE FOR THE MONTH.....+15  (+1.5 DEGREES/DAY)

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY........36 WNW AT  4:34 A.M.
                   AEROVANE.........40 NW  AT  6:28 P.M.
                   ASOS.............35 NW  AT  6:28 P.M.
                   DAVIS............40 SSW AT 12:02 A.M.

FASTEST MILE FOR YESTERDAY..........26 WNW AT  4:35 A.M.
           HIGHEST ASOS  2 MIN AV...25 NW  AT  6:28 P.M.
           HIGHEST DAVIS 1 MIN AV...32 S   AT 12:02 A.M.

AVERAGE WIND SPEED AND DIRECTION.. 17.2 NW
                   ASOS........... 16.3 WNW /  300 deg.
                   DAVIS.......... 18.1 WNW /  290 deg.

** eastern standard time

PRECIPITATION (INCHES)
TOTAL PRECIPITATION 24 HRS ENDING 8 A.M....0.00   DEPARTURE....-0.14
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........1.54   DEPARTURE....+0.21
                         ASOS..............1.54
TOTAL PRECIPITATION FOR THE YEAR..........35.09   DEPARTURE....+0.29
                         ASOS.............33.42


PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER 2004......CALENDAR DAY DATA
DATA REPORTED: 24 HOUR PERIODS ENDING MIDNIGHT EST
DATE  MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
... SUNSHINE DATA NOT YET AVAILABLE

9/1  78/60/69/+2/0/763/97    21 MPH WNW
9/2  72/56/64/-2/0/.../..    23 MPH S
9/3  79/57/68/+2/0/.../..    25 MPH SSW
9/4  82/58/70/+4/0/.../..    29 MPH ENE    Aero 30 MPH ENE
9/5  67/52/60/-5/0/.../..    25 MPH ENE
9/6  72/51/62/-3/0/.../..    18 MPH SSE
9/7  80/58/69/+4/0/.../..    24 MPH SSE
9/8  74/63/69/+4/0.79/008/01 23 MPH NE
9/9  80/63/72/+8/0.75/.../.. 45 MPH S      Aero 51 MPH S
9/10 74/56/65/+1/T/.../..    36 MPH WNW    Aero 40 MPH NW
9/11 Morning low 55 degrees...


OUR DAILY EXTREMES

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

RECORDS FOR SEPTEMBER 11
HIGH 93F IN 1983
LOW 37F IN 1917
PRECIP 5.23 INCHES IN 1954 (HURRICANE EDNA)
PEAK GUST 101 MPH NW IN 1954 (HURRICANE EDNA)

RECORDS FOR SEPTEMBER 12
HIGH 92F IN 1961
LOW 42F IN 1958,1967,1985
PRECIP 2.79 INCHES IN 1960 (HURRICANE DONNA)
PEAK GUST 140 MPH SSE IN 1960 (HURRICANE DONNA)

RECORDS FOR SEPTEMBER 13
HIGH 91F IN 1957
LOW 40F IN 1985
PRECIP 3.10 INCHES IN 1987
PEAK GUST 44 MPH WNW IN 1986

Today's report:  Matt Douglas