BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SATURDAY, FEBRUARY 9, 2008 ALL TIMES ARE IN EASTERN STANDARD TIME FIRST SIGNIFICANT SUNSHINE TODAY IN SIX DAYS... Other than a few minutes of sun on Monday, the filtered sunshine today is the first since last Sunday. The temperature has responded by climbing to the middle 30s this afternoon. There remained 2 inches of snow on the ground from the total of 2.4 inches of snowfall during the past several days. FROM THE RECORD BOOKS...74 YEARS AGO TODAY... The low temperature this morning was +21 deg F, but on this date in 1934 the record lowest temperature for Blue Hill of -21 deg F was measured. The high temperature on that date only 0 degrees. February 1934 was also the coldest month ever recorded at the Observatory averaging just 13.5 degrees. Today's observations: 7 A.M. Weather: Scattered altocumulus, overcast cirrus fibratus Temperature: 26F, Dew point: 22F, Wind: NNW at 2 kts Sea-level pressure: 30.09 inches Hg, rising Visibility: 30 miles 6-hour min temp: 21F 24-hour precipitation: 0.06 in. 24-hour snowfall: 0.4 in. BHO SA 1155 120 BKN 250 OVC 30 188/26/22/E3302/009/ BINOVC OVHD THN SPTS IOVC ALQDS HAZY WND LGT TOTAL NEW SNW PST 24 HRS 0.4 IN/ 8/071 4/002 53010 70006 10026 20021 10 A.M. Weather: Scattered altocumlus, broken cirrostratus, overcast cirrus Temperature: 30F, Dew point: 27F, Wind: SSE at 3 kts Sea-level pressure: 30.09 inches Hg, rising then falling Visibility: 35 miles BHO SA 1455 120 SCT 150 BKN 250 OVC 35 188/30/27/1603/ 009/ BINOVC ESE-SE SUN DMLY VSBL HAZY WND LGT/ 8/071 50000 1 P.M. Weather: Scattered altocumulus, overcast cirrostratus fibratus Temperature: 35F, Dew point: 28F, Wind: SE at 7 kts Sea-level pressure: 30.02 inches Hg, falling Visibility: 40 miles, 30 miles WSW-NW BHO SA 1755 100 SCT 250 OVC 40 164/35/28/1307/002/ THN SPTS IOVC ALQDS HAZY VSBY WSW-NW 30 WND LGT AND VRB/ 8/078 58024 10035 20025 WEATHER SUMMARY FOR FRIDAY, FEBRUARY 8 TEMPERATURE (DEGREES F) MAX.....28 NORMAL.....35 MIN.....24 NORMAL.....19 MEAN....26 NORMAL.....27 DEPARTURE FROM 30-YEAR NORMAL...........-1 TOTAL DEPARTURE FOR THE MONTH..........+79 [+9.7 DEGREES/DAY] HEATING DEGREE DAYS TOTAL HEATING UNITS FOR YESTERDAY............39 DEPARTURE.......+1 TOTAL HEATING UNITS FOR THE MONTH...........229 DEPARTURE......-81 TOTAL HEATING UNITS FOR THE SEASON.........3466 DEPARTURE.....-380 TOTAL HEATING UNITS LAST SEASON TO DATE....3301 DIFFERENCE....+165 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY............21 W AT 9:53 P.M. AEROVANE.............22 W AT 10:10 P.M. * ASOS.................20 WNW AT 10:11 P.M. DAVIS................17 W AT 10:06 P.M. FASTEST MILE FOR YESTERDAY..............15 W AT 10:12 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE...........15 WNW AT 10:11 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE..........13 W AT 9:55 P.M. AVERAGE WIND SPEED AND DIRECTION.......7.9 NW ASOS................7.3 DAVIS...............6.3 WNW [304 deg] * Last of several occurrences PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.06 DEPARTURE.....-0.08 ASOS..............0.06 TOTAL PRECIPITATION FOR THE MONTH..........3.13 DEPARTURE.....+1.94 ASOS..............3.09 TOTAL PRECIPITATION FOR THE YEAR...........7.00 DEPARTURE.....+1.03 ASOS..............7.05 SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.4 DEPARTURE.....-0.3 TOTAL SNOWFALL FOR THE MONTH................2.5 DEPARTURE.....-2.8 TOTAL SNOWFALL FOR THE SEASON..............46.6 DEPARTURE....+11.9 PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 2008 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 53/26/40/+14/1.16/0.1/000/00 54 SSE Aero 59 MPH SSE TSTM 2/2 51/34/43/+17/T/0/391/65 52 SW Aero 52 MPH SW 2/3 45/33/39/+13/0/0/381/63 21 SW 2/4 38/29/34/+8/0/0/006/01 18 SE 2/5 45/33/39/+12/0.42/0/000/00 36 SE Aero 37 MPH SE 2/6 46/34/40/+13/0.88/../000/00 36 NE Aero 33 MPH NE TSTM 2/7 34/26/30/+3/.../1.9/000/00 40 NE Aero 40 MPH NE TSTM 2/8 28/24/26/-1/.../0.5/000/00 21 W 2/9 morning low temp. 21F; our normal low is now 19F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR FEBRUARY 9 HIGH 58F IN 1990 LOW -21F IN 1934 [LOWEST TEMPERATURE ON RECORD] PRECIP 2.12 INS. IN 1969 SNOWFALL 13.0 INS. IN 1969 PEAK GUST 89 MPH NE IN 1969 RECORDS FOR FEBRUARY 10 HIGH 56F IN 1909 LOW -8F IN 1899 PRECIP 1.34 INS. IN 1909 SNOWFALL 12.1 INS. IN 1926 PEAK GUST 64 MPH W IN 2001 TODAY'S REPORT PREPARED By: Mike Iacono