BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY FRIDAY, NOVEMBER 18, 2005 ALL TIMES ARE IN EASTERN STANDARD TIME Today's observations: 7 A.M. Weather: Clear Temperature: 29F, Dew point: 18F, Wind: W at 15 kt Sea-level pressure: 30.21 inches Hg, rising Visibility: 70 miles BHO SA 1155 CLR 70 232/29/18/2715G20/021/ FEW SC OFFSHR NE-SE/ 8/400 53017 10030 20028 10 A.M. Weather: Clear Temperature: 33F, Dew point: 8F, Wind: W at 15G21 kt Sea-level pressure: 30.26 inches Hg, rising Visibility: 80 miles BHO SA 1455 CLR 80 247/33/8/2715G21/026 8/000 51015 1 P.M. Weather: Clear Temperature: 37F, Dew point: 2F, Wind: W at 8 kt Sea-level pressure: 30.22 inches Hg, falling Visibility: 80 miles BHO SA 1755 CLR 80 234/37/2/2808/022/ FEW CI DSNT W-NE/ 8/001 58013 10037 20029 WEATHER SUMMARY FOR THURSDAY, NOVEMBER 18 TEMPERATURE (DEGREES F) MAX.....47 NORMAL.....48 ASOS.....47 AT 12:04 A.M. MIN.....30 NORMAL.....34 ASOS.....30 AT 11:59 P.M. MEAN....39 NORMAL.....41 DEPARTURE FROM 30-YEAR NORMAL.......-2 TOTAL DEPARTURE FOR THE MONTH......+94 (+5.3 DEGREES/DAY) HEATING DEGREE DAYS TOTAL HEATING UNITS FOR YESTERDAY..........26 DEPARTURE.....+2 TOTAL HEATING UNITS FOR THE MONTH.........263 DEPARTURE....-82 TOTAL HEATING UNITS FOR THE SEASON........724 DEPARTURE...-225 TOTAL HEATING UNITS LAST SEASON TO DATE...936 DIFFERENCE..-212 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY.........28 W AT 4:03 P.M. AEROVANE..........32 W AT 4:03 P.M. ASOS..............28 W AT 4:01 P.M. FASTEST MILE FOR YESTERDAY...........24 W AT 4:01 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE........22 W AT 4:02 P.M. AVERAGE WIND SPEED AND DIRECTION...14.5 W ASOS............14.5 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..........1.64 DEPARTURE....-1.00 ASOS..............1.60 TOTAL PRECIPITATION FOR THE YEAR..........59.26 DEPARTURE...+14.75 ASOS.............58.15* *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....-1.4 TOTAL SNOWFALL FOR THE SEASON...............1.5 DEPARTURE....-0.1 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/+12/0/0/465/76 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/+2/0.20/0/258/43 36 MPH SSE Aero 41 MPH SSE 11/10 58/32/45/+1/0.46/102/17 37 MPH W Aero 44 MPH W TSTM 11/11 41/29/35/-8/0/0/536/90 29 MPH W 11/12 51/26/39/-4/0/0/594/100 18 MPH W 11/13 62/41/52/+9/0/0/496/84 30 MPH S Aero 37 MPH S 11/14 63/44/54/+12/T/0/524/89 31 MPH WSW Aero 37 MPH WSW 11/15 53/42/48/+6/0.09/0/000/00 22 MPH E 11/16 65/47/56/+14/N/A/0/037/05/ 54 MPH S Aero 58 MPH S 11/17 47/30/39/-2/0.19/0/.../.. 28 MPH W DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR NOVEMBER 18 HIGH 72F IN 1963 LOW 10F IN 1936 PRECIP 1.80 INCHES IN 1929 SNOWFALL 6.3 INCHES IN 1980 PEAK GUST 60 MPH SW IN 1987 RECORDS FOR NOVEMBER 19 HIGH 72F IN 1941 LOW 10F IN 1936 PRECIP 1.92 INCHES IN 1926 SNOWFALL 11.0 INCHES IN 1986 PEAK GUST 59e MPH E IN 1945 TODAY'S REPORT BY: Andrew Hoell