BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY MONDAY DECEMBER 13, 2004 DECEMBER TEMPS. AVERAGING MORE THAN 4 DEGREES WARMER THAN NORMAL.. CLOUDY SKIES PREVAIL OVER PAST WEEK--SUNSHINE ONLY 37% FOR THE MONTH PRECIPITATION TOTAL OVER 3 INCHES AND AN INCH ABOVE NORMAL Today will make the seventh consecutive day to have well above normal temperatures and December has a departure of more than 4 degrees over almost the past two weeks. Sunshine has been very scarce over the past week with the result that the monthly average percentage is only 38% of possible for the month to date. Three significant heavy rainfall events have sent the total for the month past the 3-inch mark or more than one inch more than normal. TODAY'S OBSERVATIONS 7 a.m. overcast with 15 miles visibility with thin fog and 39 deg; dewpoint 37; wind south at 15 mph; six hourly min. temp. 34; 24 hour precip. 0.01 in. BHO SA 1155 E55 OVC 15 004/39/37/1813/954/ FEW PTCHS VIRGA THN F ALQDS VSBY WNW 20/ 8/02/ 56008 ASOS 60001 MANUAL 6001/ ASOS 70001 MANUAL 70001 10039 20034 10 a.m. overcast with 15 miles visibility and hazy; temp. 41; dewpoint 36; wind south at 12 mph BHO SA 1455 E100 BKN 160 OVC 15 004/41/36/1910/954/ BINOVC NW-N FEW HIER CLDS AND THN SPTS IOVC VSBY WNW 20 HAZY ALQDS/ 8/071 55000 1 p.m. cloudy with 25 miles visibility and hazy and 43 deg; dewpoint 34; wind southwest at 14 mph; max. temp. past 6 hrs 44 deg. BHO SA 1755 E80 OVC 25 984/43/34/2312/948/ FEW LWR CUFRA/CU HAZY GST TO 25 KTS PST HR WND 19V27/ 8/17/ 56022 10044 20039 WEATHER SUMMARY FOR SUNDAY DECEMBER 12: TEMPERATURE (DEGREES F) MAX.....43 NORMAL.....39 MIN.....33 NORMAL.....25 MEAN....38 NORMAL.....32 DEPARTURE FROM 30-YEAR NORMAL.....+ 6 TOTAL DEPARTURE FOR THE MONTH.....+ 54 (4.3 degrees/day) PEAK WIND GUST FOR YESTERDAY........32 W AT 11:23 A.M. AEROVANE.........33 W AT 11:23 A.M. ASOS.............29 WNW AT 11:28 A.M. DAVIS............30 W AT 11:30 A.M. FASTEST MILE FOR YESTERDAY..........22 W 11:58 A.M. HIGHEST ASOS 2 MIN AV..............23 WSW AT 1:13 P.M. HIGHEST ONE MIN. WIND FOR DAVIS ....25 WSW AT 4:33 P.M. AVERAGE WIND SPEED AND DIRECTION.. 13.2 WSW AVERAGE WIND SPEED FOR ASOS..........13.2 W 260 deg AVERAGE WIND FOR THE DAVIS SYSTEM....13.7 WSW 250 deg. PRECIPITATION (INCHES) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.01 DEPARTURE....-0.14 ASOS..............0.01 TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0 TOTAL SNOWFALL THIS MONTH TO DATE...........0.2 TOTAL PRECIPITATION FOR THE MONTH..........3.20 DEPARTURE....+1.41 ASOS..............3.27 TOTAL PRECIPITATION FOR THE YEAR..........52.18 DEPARTURE....+3.73 ASOS.............50.59 PRELIMINARY CLIMATE SUMMARY FOR DECEMBER 2004......CALENDAR DAY DATA DATA REPORTED: 24 HOUR PERIODS ENDING MIDNIGHT EST DATE MAX/MIN/MEAN/DEP/PRECIP/SNOWFALL/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST ... SUNSHINE DATA NOT YET AVAILABLE 12/1 55/39/47/+11/0.80/0/073/13 62 MPH SE Aero 65 MPH SSE 12/2 46/36/41/+5/0/0/379/68 50 MPH W Aero 51 MPH W 12/3 45/32/39/+4/0/0/378/68 33 MPH W 12/4 39/25/32/-3/0/0/500/90 31 MPH SSW 12/5 50/26/38/+3/0/0/532/96 46 MPH W Aero 51 MPH W 12/6 33/20/27/-7/0.03/0.2/000/00 22 MPH NE 12/7 45/32/39/+5/1.48/0/000/00 37 MPH ENE 12/8 52/34/43/+10/0.04/0/402/73 55 MPH W Aero 58 MPH W 12/9 41/32/37/+4/0/0/143/26 25 MPH W 12/10 44/37/41/+8/0.77/0/000/00 40 MPH NE 12/11 44/38/41/+9/0.07/0/000/00 35 MPH NNE 12/12 44/33/38/+6/0/0/099/18 32 MPH W 12/13 morning low temp. 34 deg.; 0.01 in early a.m. showers OUR DAILY EXTREMES.... Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR DECEMBER 13 HIGH 60 IN 1984 LOW 00 IN 1893 PRECIP 1.45 INS. IN 1983 SNOWFALL 9.0 INS. IN 1902 PEAK GUST 81e WNW IN 1976 RECORDS FOR DECEMBER 14 HIGH 62 IN 1901 LOW -06 IN 1893 PRECIP 1.94 INS. IN 2002 SNOWFALL 8.0 INS. IN 1907 PEAK GUST 78e ENE IN 1941 Today's report by: Robert Skilling