BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY FRIDAY, NOVEMBER 11, 2005 ALL TIMES ARE IN EASTERN STANDARD TIME Today's observations: 7 A.M. EST Weather: Clear Temperature: 30F, Dew point: 17F, Wind: W at 11 kt Sea-level pressure: 29.96 inches Hg, rising Visibility: 65 miles BHO SA 1155 CLR 65 145/30/17/2711/996/ FEW AC DSNT W-NW FEW SC NE-SE/ 8/470 53030 10031 20030 10 A.M. EST Weather: Scattered stratocumulus Temperature: 37F, Dew point: 18F, Wind: W at 15 kt Sea-level pressure: 29.98 inches Hg, rising Visibility: 70 miles BHO SA 1455 40 SCT 70 151/37/18/2715G22/998/ CLR OVHD STN/ 8/500 51006 1 P.M. EST Weather: Scattered stratocumulus Temperature: 40F, Dew point: 17F, Wind: W at 15 kt Sea-level pressure: 29.94 inches Hg, falling Visibility: 70 miles BHO SA 1755 40 BKN 70 139/40/17/2715G20/994/ 8/500 56012 10040 20030 WEATHER SUMMARY FOR THURSDAY, NOVEMBER 10 TEMPERATURE (DEGREES F) MAX.....58 NORMAL.....51 ASOS.....58 AT 4:14 A.M. MIN.....32 NORMAL.....36 ASOS.....32 AT MIDNIGHT P.M. MEAN....45 NORMAL.....44 DEPARTURE FROM 30-YEAR NORMAL.......+1 TOTAL DEPARTURE FOR THE MONTH......+67 (+6.5 DEGREES/DAY) HEATING DEGREE DAYS TOTAL HEATING UNITS FOR YESTERDAY..........20 DEPARTURE.....-1 TOTAL HEATING UNITS FOR THE MONTH.........131 DEPARTURE....-55 TOTAL HEATING UNITS FOR THE SEASON........592 DEPARTURE...-198 TOTAL HEATING UNITS LAST SEASON TO DATE...747 DIFFERENCE..-155 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY.........37 W AT 2:03 P.M. AEROVANE..........44 S AT 12:40 A.M. ASOS..............40 S AT 12:42 A.M. DAVIS.............43 S FASTEST MILE FOR YESTERDAY...........31 S AT 12:42 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE........31 S AT 12:42 A.M. AVERAGE WIND SPEED AND DIRECTION...18.2 W ASOS............17.6 PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00 DEPARTURE....-0.16 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........0.92 DEPARTURE....-0.60 ASOS..............0.93 TOTAL PRECIPITATION FOR THE YEAR..........58.54 DEPARTURE...+15.00 ASOS.............57.48* *EXCLUDES 3.19 INCHES OF ERRONEOUS PRECIPITATION RECORDED FROM 1/23-1/28. SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0 DEPARTURE....-0.1 TOTAL SNOWFALL FOR THE MONTH................0.0 DEPARTURE....-0.7 TOTAL SNOWFALL FOR THE SEASON...............1.5 DEPARTURE....+0.7 PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 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 11/1 70/48/59/+12/0/0/446/72 39 MPH S Aero 40 MPH S 11/2 56/39/48/+2/T/0/543/88 37 MPH WNW Aero 39 MPH WNW 11/3 62/36/49/+3/0/0/449/73 50 MPH S Aero 52 MPH S 11/4 69/46/58/+12/0/0/.../.. 29 MPH SSE Aero 30 MPH SSE 11/5 71/47/59/+14/0/0/268/44 18 MPH S 11/6 57/49/53/+8/0.25/0/000/00 31 MPH SSW Aero 36 MPH SSW TSTM 11/7 57/45/51/+6/0.01/0/430/71 47 MPH W Aero 48 MPH W 11/8 60/42/51/+7/0/0/265/44 35 MPH W Aero 36 MPH W 11/9 57/34/46/+2/0.20/258/43 36 MPH SSE Aero 41 MPH SSE 11/10 58/32/45/+1/0.46/.../.. 37 MPH W Aero 44 MPH W DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR NOVEMBER 11 HIGH 68 IN 1984 LOW 17 IN 1956 PRECIP 1.14 INCHES IN 1991 SNOWFALL 2.5 IN 1986 PEAK GUST 64 NW IN 1962 RECORDS FOR NOVEMBER 12 HIGH 74 IN 1909 LOW 18 IN 1926 PRECIP 3.25 INCHES IN 1947 SNOWFALL 8.1 INCHES IN 1987 PEAK GUST 79e MPH NW IN 1947 TODAY'S REPORT BY: Andrew Hoell