BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SATURDAY, NOVEMBER 19, 2005 ALL TIMES ARE IN EASTERN STANDARD TIME BRIGHT SUNSHINE AND COOL TODAY...LOW TEMPERATURE THIS MORNING MATCHES THE COLDEST OF THE SEASON SO FAR... NOVEMBER STILL AVERAGING FIVE DEGREES WARMER THAN NORMAL... The low temperature this morning of 26 (deg F) matches the coldest temperature of the season to date. The mean temperature on Friday of 32 was nine degrees colder than the average for the date. The sky has been mostly sunny today, with good visibility of 60-70 miles. Today's observations: 7 A.M. Weather: Thin scattered cirrus Temperature: 27F, Dew point: 15F, Wind: WSW 7 mph Sea-level pressure: 30.38 inches, rising Visibility: 70 miles, thin smoke layer N-NE BHO SA 1155 200 SCT 250 -SCT 70 289/27/15/2106/038/ THN K LYR A LNG HRZN N-NE WND LGT/ 8/001 51010 10027 20026 10 A.M. Weather: Thin scattered cirrus Temperature: 34F, Dew point: 16F, Wind: S 7 mph Sea-level pressure: 30.39 inches, rising Visibility: 70 miles BHO SA 1455 250 -SCT 70 292/34/16/1806/039/ WND LGT AND VRB/ 8/001 50003 1 P.M. Weather: Thin scattered cirrus, few cumulus Temperature: 42F, Dew point: 18F, Wind: S 11 mph Sea-level pressure: 30.34 inches, falling Visibility: 60 miles BHO SA 1755 250 -SCT 60 275/42/18/1910/034/ FEW CI DSNT NW-N FEW CU DSNT SW AND NE WND 16V22/ 8/501 58017 10042 20027 WEATHER SUMMARY FOR FRIDAY, NOVEMBER 18 TEMPERATURE (DEGREES F) MAX.....38 NORMAL.....48 ASOS.....38 AT 1:03 PM MIN.....26 NORMAL.....34 ASOS.....26 AT MIDNIGHT PM MEAN....32 NORMAL.....41 DEPARTURE FROM 30-YEAR NORMAL.......-9 TOTAL DEPARTURE FOR THE MONTH......+85 (+4.5 DEGREES/DAY) HEATING DEGREE DAYS TOTAL HEATING UNITS FOR YESTERDAY..........33 DEPARTURE.....+9 TOTAL HEATING UNITS FOR THE MONTH.........296 DEPARTURE....-86 TOTAL HEATING UNITS FOR THE SEASON........757 DEPARTURE...-216 TOTAL HEATING UNITS LAST SEASON TO DATE...951 DIFFERENCE..-194 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY.........30 WNW AT 8:07 A.M. AEROVANE..........34 WNW AT 8:07 A.M. ASOS..............N/A * DAVIS.............31 W AT 8:06 A.M. FASTEST MILE FOR YESTERDAY...........23 W AT 8:15 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE........N/A * AVERAGE WIND SPEED AND DIRECTION...11.9 W ASOS............11.6 *NOT AVAILABLE DUE TO POWER INTERRUPTION 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....-1.16 ASOS..............1.60 TOTAL PRECIPITATION FOR THE YEAR..........59.26 DEPARTURE...+14.59 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....-1.7 TOTAL SNOWFALL FOR THE SEASON...............1.5 DEPARTURE....-0.2 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/+2/0.20/258/43 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 11/18 38/26/32/-9/0/0/.../.. 30 MPH W 11/19 ..overnight low 26 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR NOVEMBER 19 HIGH 72 IN 1941 LOW 10 IN 1936 PRECIP 1.92 INCHES IN 1926 SNOWFALL 11.0 INS IN 1986 PEAK GUST 59e E IN 1945 RECORDS FOR NOVEMBER 20 HIGH 72 IN 1953 LOW 10 IN 1894 PRECIP 2.78 INS IN 1988 SNOWFALL 3.0 INS IN 1897 PEAK GUST 73e S IN 1950 TODAY'S REPORT BY: Mike Iacono