BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SATURDAY, FEBRUARY 26, 2005 ALL TIMES ARE IN EASTERN STANDARD TIME [unless otherwise noted] SUNNY AND COLD TODAY...9TH STRAIGHT DAY COLDER THAN NORMAL.. FINAL STORM TOTAL ON FRIDAY WAS 6.7 INCHES OF SNOW.... SEASONAL SNOW TOTAL IS 7TH GREATEST THROUGH FEBRUARY... Radiational cooling dropped the low temperatures this morning to near zero in the surrounding valleys, but the minimum temperature on the summit was 14. Snow depth on the ground is now 9 inches. The 6.7 inches of new snow that ended on Friday raises the monthly total to 16.9 inches. The seasonal seasonal total of 85.7 inches is the seventh highest on our 120-year record for the period from October through February. The most snow for any season through February was 122.2 inches in 1947-48. Today's observations: 7 A.M. Weather: Clear with a few cirrus Temperature: 14F, Dew point: 9F, Wind: W 9 mph Sea-level pressure: 30.14 inches, rising Visibility: 40 miles BHO SA 1155 CLR 40 205/14/9/2708/014/ FEW CI VCNTY STN OVHD CI N-SE FEW CI DSNT NW FEW SC DSNT E-ESE WND LGT TOTAL NEW SNW PST 24 HRS 0.2 IN/ 8/531 4/009 53010 70001 10019 20014 10 A.M. Weather: Thin scattered cirrus Temperature: 24F, Dew Point: 11F, Wind: W 4 mph Visibility: 30 miles Sea-level pressure: 30.14 inches, steady BHO SA 1455 300 -SCT 30 205/24/11/2803/014/ FEW LWR CI SW WND LGT AND VRB/ 8/001 50000 1 P.M. Weather: Thin overcast cirrostratus, with cumulus Temperature: 31F, Dew Point: 17F, Wind: W 9 mph Visibility: 30 miles Sea-level pressure: 30.06 inches, falling BHO SA 1755 60 SCT 200 -OVC 30 178/31/17/2608/006/ WND LGT AND VRB/ 8/106 53027 10032 20014 WEATHER SUMMARY FOR FRIDAY, FEBRUARY 25: TEMPERATURE (DEGREES F) MAX.....30 NORMAL.....39 ASOS.....28 AT 2:17 P.M. MIN.....16 NORMAL.....22 ASOS.....16 AT 8:15 A.M. MEAN....23 NORMAL.....31 DEPARTURE FROM 30-YEAR NORMAL......-8 TOTAL DEPARTURE FOR THE MONTH.....+68 (+2.5 DEGREES/DAY) HEATING DEGREE DAY INFORMATION TOTAL HEATING DEGREE DAYS FOR FRIDAY.........42 DEPARTURE.....+7 TOTAL HEATING DEGREE DAYS FOR THE MONTH.....858 DEPARTURE....-74 TOTAL HEATING DEGREE DAYS FOR THE SEASON...4338 DEPARTURE...-130 TOTAL HEATING DEGREE DAYS FOR LAST YEAR....4511 DIFFERENCE..-173 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........26 NNW AT 7:22 A.M.* AEROVANE.........29 NNW AT 6:47 A.M. ASOS.............25 NNW AT 5:03 A.M. DAVIS............25 NNW AT 4:31 A.M. FASTEST MILE FOR YESTERDAY..........18 NNW AT 6:35 A.M.* MAXIMUM 2-MINUTE ASOS AVERAGE.......20 NNW AT 5:03.M. AVERAGE WIND SPEED AND DIRECTION..10.0 NNW ASOS............9.9 *Last of two occurances. PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.01 DEPARTURE....-0.14 ASOS..............0.02 TOTAL PRECIPITATION FOR THE MONTH..........3.30 DEPARTURE....-0.31 ASOS..............3.12 TOTAL PRECIPITATION FOR THE YEAR...........9.54 DEPARTURE....+1.15 ASOS..............8.95* *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..........0.2 DEPARTURE.....-0.3 TOTAL SNOWFALL FOR THE MONTH...............16.9 DEPARTURE.....+2.4 TOTAL SNOWFALL FOR THE SEASON..............85.7 DEPARTURE....+41.8 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/+2/0/0/600/100 13 MPH NNW 2/2 35/20/28/+2/0/0/549/91 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/+13/0/0/605/99 30 MPH N 2/6 41/30/36/+9/0/0/613/100 31 MPH N 2/7 50/29/40/+13/0/0/400/65 22 MPH S 2/8 47/36/42/+15/0/0/012/02 24 MPH SSW 2/9 50/36/43/+16/0.01/0/099/16 25 MPH W 2/10 38/30/34/+7/0.97/2.9/000/00 32 MPH NNW 2/11 30/21/26/-1/0.05/0.5/451/72 44 MPH WNW Aero 51 MPH WNW 2/12 36/24/30/+2/0/0/182/29 36 MPH W 2/13 37/21/29/+1/0/0/429/68 27 MPH WNW 2/14 38/19/29/+1/0.06/0.1/323/51 38 MPH SE 2/15 48/36/42/+14/0.58/0/293/46 52 MPH SE Aero 53 MPH SE 2/16 52/33/43/+15/0.17/0/160/25 42 MPH S Aero 43 MPH S 2/17 38/26/32/+3/0/0/417/65 30 MPH W Aero 30 MPH W 2/18 33/14/24/-5/0.01/0.2/316/49 37 MPH W 2/19 26/9/18/-11/0/0/576/89 31 MPH WNW Aero 33 MPH WNW 2/20 30/17/24/-5/0/0/598/92 28 MPH W 2/21 31/21/26/-3/0.60/5.2/000/00 32 MPH E 2/22 29/21/25/-5/0.05/0.6/000/00 24 MPH NNW 2/23 34/19/27/-3/0.03/0.4/342/52 30 MPH W 2/24 26/10/18/-12/..../.../.../.. 25 MPH NW 2/25 30/16/23/-8/..../.../.../.. 26 MPH NNW 2/26 ..overnight low 14 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR FEBRUARY 26 HIGH 67F IN 1957 LOW -7F IN 1928 PRECIP 2.24 INCHES IN 1979 SNOWFALL 11.1 INCHES IN 1933 PEAK GUST 66 MPH W IN 1961 RECORDS FOR FEBRUARY 27 HIGH 61F IN 1976 LOW -8F IN 1900 PRECIP 0.90 INCHES IN 1922 SNOWFALL 6.0 INCHES IN 1922 PEAK GUST 67 MPH W IN 1985 TODAY'S REPORT BY: Mike Iacono