BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SUNDAY, FEBRUARY 6, 2005 ALL TIMES ARE IN EASTERN STANDARD TIME [unless otherwise noted] TODAY IS THE 27 YEAR ANNIVERSARY OF THE BLIZZARD OF 1978 Today's observations: 7 A.M. Weather: Clear Temperature: 33F, Dew point: 27F, Wind: N at 15 kt Sea-level pressure: 30.59 inches Hg, rising Visibility: 45 miles BHO SA 1155 CLR 45 360/33/27/3615G22/059/ VSBY HIER ABV INVSN/ 8/000 4/012 53017 10037 20032 10 A.M. Weather: Clear Temperature: 38F, Dew Point: 29F, Wind: N at 15 kt Visibility: 25 miles Sea-level pressure: 30.64 inches Hg, rising BHO SA 1455 CLR 25 375/38/29/0115G19/064/ THN K LYR ALNG HRZN ALQDS/ 8/000 53015 1 P.M. Weather: Clear Temperature: 41F, Dew Point: 29F, Wind: NNE at 12 kt Visibility: 25 miles BHO SA 1755 CLR 25 366/41/29/0212G16/062/ K LYR ALNG HRZN N-NE/ 8/000 58009 10041 20033 WEATHER SUMMARY FOR SATURDAY, FEBRUARY 5: TEMPERATURE (DEGREES F) MAX.....49 NORMAL.....34 ASOS.....49 AT 3:17 P.M. MIN.....30 NORMAL.....19 ASOS.....30 AT 5:42 A.M. MEAN....40 NORMAL.....27 DEPARTURE FROM 30-YEAR NORMAL.....+13 TOTAL DEPARTURE FOR THE MONTH.....+25 (+4.8 DEGREES/DAY) HEATING DEGREE DAY INFORMATION TOTAL HEATING DEGREE DAYS FOR FRIDAY.........25 DEPARTURE....-13 TOTAL HEATING DEGREE DAYS FOR THE MONTH.....169 DEPARTURE....-25 TOTAL HEATING DEGREE DAYS FOR THE SEASON...3649 DEPARTURE....-82 TOTAL HEATING DEGREE DAYS FOR LAST YEAR....3692 DIFFERENCE..-124 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........30 N AT 12:09 P.M. AEROVANE.........30 NNW AT 05:52 A.M. ASOS.............25 N AT 06:51 A.M. FASTEST MILE FOR YESTERDAY..........23 NNW AT 05:46 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......22 NNW AT 05:47 A.M. AVERAGE WIND SPEED AND DIRECTION..12.3 NNW ASOS...........13.0 PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00 DEPARTURE....-0.15 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........0.30 DEPARTURE....-0.45 ASOS..............0.29 TOTAL PRECIPITATION FOR THE YEAR...........6.54 DEPARTURE....+1.01 ASOS..............6.12* *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 DEPARTURE.....-0.7 TOTAL SNOWFALL FOR THE MONTH................0.3 DEPARTURE.....-2.9 TOTAL SNOWFALL FOR THE SEASON..............69.1 DEPARTURE....+36.5 PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 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 2/1 38/18/28/+2/0/0/.../.. 13 MPH NNW 2/2 35/20/28/+2/0/0/.../.. 23 MPH N 2/3 36/20/28/+2/0.28/0.2/012/02 27 MPH NNE 2/4 33/30/32/+6/0.02/0.1/000/00 33 MPH N 2/5 49/30/40/+13/0/0/.../.. 30 MPH N DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR FEBRUARY 6 HIGH 54F IN 1909 LOW -10F IN 1895 PRECIP 1.88 INCHES IN 1896 SNOWFALL 13.0 INCHES IN 1978 [BLIZZARD OF 1978] PEAK GUST 84e MPH NE IN 1978 RECORDS FOR FEBRUARY 7 HIGH 60F IN 1930 LOW -7F IN 1896 PRECIP 2.12 INCHES IN 1983 SNOWFALL 17.1 INCHES IN 1978 [BLIZZARD OF 1978] PEAK GUST 87e MPH SSE IN 1951 TODAY'S REPORT BY: Andrew Hoell