BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SUNDAY, JUNE 11, 2006 ALL TIMES ARE IN EASTERN STANDARD TIME Today's observations: 7 A.M. Weather: Broken altocumulus, broken cirrus Temperature: 54F, Dew point: 46F, Wind: W at 19G27 kt Sea-level pressure: 29.51 inches Hg, rising Visibility: 60 miles BHO SA 1155 110 BKN 200 BKN 60 995/54/46/2619G27/951/ FEW SC ALQDS PK WND 2727/1153/ 8/773 51008 70050 10054 20049 10 A.M. Weather: Broken altocumulus Temperature: 60F, Dew point: 49F, Wind: W at 20G32 kt Sea-level pressure: 29.54 inches Hg, rising Visibility: 60 miles BHO SA 1455 110 BKN 60 003/60/49/2820G32/954/ PK WND 2832/1445/ 8/070 53008 WEATHER SUMMARY FOR SATURDAY, JUNE 10 TEMPERATURE (DEGREES F) MAX.....58 NORMAL.....74 MIN.....50 NORMAL.....54 MEAN....54 NORMAL.....64 DEPARTURE FROM 30-YEAR NORMAL.....-10 TOTAL DEPARTURE FOR THE MONTH.....-44 (-4.2 DEGREES/DAY) HEATING DEGREE DAYS HEATING DEGREE DAY UNITS FOR YESTERDAY.....11 DEPARTURE.....+8 TOTAL HEATING UNITS FOR THE MONTH..........71 DEPARTURE....+32 TOTAL HEATING UNITS FOR THE SEASON.......5785 DEPARTURE...-551 TOTAL HEATING UNITS LAST SEASON TO DATE..6362 DIFFERENCE..-577 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY.........36 W AT 12:32 P.M. AEROVANE..........35 W AT 11:38 P.M. ASOS..............32 W AT 11:40 P.M. DAVIS.............36 W FASTEST MILE FOR YESTERDAY...........26 W AT 6:40 p.M. MAXIMUM 2-MINUTE ASOS AVERAGE........24 W AT 6:40 P.M. DAVIS.............27 W AVERAGE WIND SPEED AND DIRECTION.....14.8 W ASOS..............15.0 DAVIS.............N/A PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.50 DEPARTURE....+0.37 ASOS..............0.47 TOTAL PRECIPITATION FOR THE MONTH..........8.24 DEPARTURE....+6.94 ASOS..............8.17 TOTAL PRECIPITATION FOR THE YEAR..........30.24 DEPARTURE....+7.20 ASOS.............29.84 PRELIMINARY CLIMATE SUMMARY FOR JUNE 2006......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 6/1 86/60/73/+11/0.47/443/49 45 WSW TSTM 6/2 69/56/63/+1/0.40/000/00 25 NNE 6/3 56/50/53/-9/2.40/000/00 44 NNE 6/4 59/49/54/-9/0.14/000/00 43 N 6/5 68/54/61/-2/0/309/34 20 WSW 6/6 70/55/63/0/0.05/.../.. 23 ENE 6/7 56/50/53/-11/.../000/00 54 NNE 6/8 57/49/53/-11/.../000/00 30 N 6/9 63/56/60/-4/.../000/00 15 SW 6/10 58/50/54/-10/.../000/00 36 W DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR JUNE 11 HIGH 92F IN 1973,1984,1997 LOW 40F IN 1972 PRECIP 2.66 INCHES IN 1922 PEAK GUST 43e MPH S IN 1945 RECORDS FOR JUNE 12 HIGH 92F IN 1973 LOW 40F IN 1906 PRECIP 1.79 INCHES IN 1955 PEAK GUST 48 MPH NW IN 1951 Today's Report by: Andrew Hoell