BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY FRIDAY, AUGUST 20, 2004 ALL TIMES ARE IN EASTERN DAYLIGHT TIME TODAY'S DISCUSSION... WARM AND QUITE HUMID WITH A FEW LIGHT SHOWERS A warm and very humid airmass continues in place today. Dewpoints over the past 24 hours have been in the upper 60''s to low 70's. Yesterday's high temperature was held to 79 degrees here due to considerable afternoon cloudiness. The were a few very light showers in the vicinity and a trace was recorded here in a very brief and very light shower around 4:30 p.m. Early this morning a 10-minute shower left 0.02 inch around 5:30 a.m. TODAY'S OBSERVATIONS: 8 a.m. thin broken high clouds; visibility 6 miles in thin fog but 8 miles to the sw and 9 to the north and higher above an inversion with its estimated top 7 hundred feet over the city north; temp. 71; dewpoint 68; wind ssw at 09 mph; six hourly min. temp. 68; six hour and twenty-four hour precipitation, 0.02 inch.. BHO SA 1155 120 SCT 150 SCT 250 -BKN 300 -BKN 6F 169/71/68/2008/003/ AC CHAOTIC VSBY SW 8 N 9 HIER ABV INVSN ESTMTD TOP 7 HND OVR CTY N/ 8/091 53002 ASOS 60001 MANUAL 6002/ ASOS 70001 MANUAL 70002 10071 20068 11 a.m. scattered low and high thin clouds and only 6 miles visibility in thick haze; temp. 79; dewpoint 72; wind ssw at 12 mph... BHO SA 1455 15 SCT 300 -SCT 6H 168/79/72/2010/003/ FEW SC ALQDS WND 18V24/ 8/501 58001 ALL TIMES EASTERN DAYLIGHT TIME.. WEATHER SUMMARY FOR THURSDAY, AUGUST 19: TEMPERATURE (DEGREES F) MAX.....79 NORMAL.....79 HAZEN....79.2 MIN.....67 NORMAL.....61 HAZEN....66.8 MEAN....73 NORMAL.....70 DEPARTURE FROM 30-YEAR NORMAL.....+ 3 TOTAL DEPARTURE FOR THE MONTH.....-25 (-1.5 DEGREES/DAY) PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........31 S AT 1:48 P.M. AEROVANE.........35 S AT 1:48 P.M. ASOS.............30 S AT 1:48 P.M. DAVIS............35 S AT 1:41 P.M. FASTEST MILE FOR YESTERDAY.......... HIGHEST ASOS 2 MIN AV...24 S AT 1:48 P.M. HIGHEST DAVIS 1 MIN AV...28 S AT 1:45 P.M. AVERAGE WIND SPEED AND DIRECTION.. ASOS........... 14.9 S / 190 deg. DAVIS.......... 15.5 SSW / 200 deg. PRECIPITATION (INCHES) TOTAL PRECIPITATION 24 HRS ENDING 8 A.M....0.00 DEPARTURE....-0.13 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........3.77 DEPARTURE....+1.46 ASOS..............3.68 TOTAL PRECIPITATION FOR THE YEAR..........31.50 DEPARTURE....-0.22 ASOS.............29.86 PRELIMINARY CLIMATE SUMMARY FOR AUGUST 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 8/1 79/70/75/+3/0.03/165/19 32 MPH SSW AERO 35 MPH SSW 8/2 84/69/77/+5/0/544/63 21 MPH NE 8/3 86/69/78/+6/0/698/81 25 MPH SW AERO 29 MPH SW 8/4 79/65/72/0/0.06/679/79 24 MPH ENE 8/5 70/57/64/-8/0.49/231/27 21 MPH E 8/6 70/56/63/-9/0/419/49 24 MPH N 8/7 72/51/62/-9/0/495/58 * 17 MPH WNW 8/8 75/52/64/-7/0/774/91 31 MPH W 8/9 80/56/68/-3/0/848/100 25 MPH W 8/10 84/62/73/+2/0/719/85 31 MPH S 8/11 81/66/74/+3/0/177/21 35 MPH S AERO 36 MPH S 8/12 82/67/75/+4/0.62/530/63 33 MPH SSE 8/13 77/70/74/+3/0.78/008/01 ** 30 MPH SSW 8/14 83/65/74/+4/0.02/576/69 ** 21 MPH W 8/15 68/60/64/-6/1.55/000/00 28 MPH ENE 8/16 62/58/60/-10/0.18/000/00 18 MPH ENE 8/17 72/57/65/-5/0.04/356/43 18 MPH NNE 8/18 79/58/69/-1/0/685/83 30 MPH S AERO 33 MPH S 8/19 79/67/73/+3/T/.../.. 31 MPH S AERO 35 MPH S 8/20 morning low temp. 68; precip: 0.02 inch * A NEW RECORD LOW MINIMUM TEMP. FOR 8/7 OF 51 DEG; the previous record was 52 degrees in 1950,1964. ** corrections have been made to daily sunshine for 8/13 from 000/00 to 008/01; and 8/14 from 000/00 to 576/69 We've record about 52% of the possible bright sunshine for August to date; normal for the month is 58% OUR DAILY EXTREMES 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 RECORDS FOR AUGUST 21 HIGH 92F IN 1937, 1995 LOW 47F IN 1982 PRECIP 2.84 INCHES IN 1888 PEAK GUST 51 MPH ESE 1997 Today's report: Robert Skilling