BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY THURSDAY, JANUARY 13, 2005 ALL TIMES ARE IN EASTERN STANDARD TIME [unless otherwise noted] VERY MILD JANUARY CONTINUES AT 6.4 DEGREES WARMER THAN NORMAL... The month is averaging over 6 degrees milder than normal despite 10 inches of snowfall and icing. The latest precipitation event brought 2.0 inches of snowfall and 0.56 inch of melted precipitation on Jan. 11-12. TODAY'S OBSERVATIONS.... 1/13/2005 THU 7 a.m. obscurement with fog; visibility 1/16 heavy fog; temp/dewpoint 31; wind calm; six hourly min. temp. 30; six hourly max. temp. 31; 24 hourly precipitation 0.39 inch; 24 hour snowfall 0.3 inch; snow depth on ground is 4 inches.. BHO SA 1155 W2 X 1/16F 249/31/31/0000/027/ TOTAL NEW SNW PST 24 HRS 0.3 IN/ 8//// 4/004 53003 ASOS 70038 MANUAL 70039 10031 20030 10 a.m. obscurement with fog; visibility 1/16 heavy fog; temp./ dewpoint 33 deg; wind east 07 mph.. BHO SA 1455 W2 X 1/16F 245/33/33/1006/025/ 8//// 55004 1 p.m. obscurement with fog; visibility 1/16 heavy fog; temp/dewpoint 39; wind sse at 13 mph; six hourly max. temp. 39; six hourly min. temp. 31 deg. BHO SA 1755 W3 X 1/16F 210/39/39/1511/015/ 8//// 58035 10039 20031 WEATHER SUMMARY FOR WEDNESDAY, JANUARY 12: TEMPERATURE (DEGREES F) MAX.....37 NORMAL.....34 MIN.....26 NORMAL.....18 MEAN....32 NORMAL.....26 DEPARTURE FROM 30-YEAR NORMAL......+6 TOTAL DEPARTURE FOR THE MONTH.....+79 (+6.4 DEGREES/DAY) PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........33 ENE AT 1:32 P.M. AEROVANE.........36 ENE AT 1:32 P.M. ASOS.............28 ENE AT 1:33 P.M. DAVIS............27 ENE AT 1:33 P.M. FASTEST MILE FOR YESTERDAY..........22 ENE AT 2:27 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......22 ENE AT 1:39 P.M. AVERAGE WIND SPEED AND DIRECTION....13.1 ENE ASOS AVERAGE WIND AND DIRECTION.....13.0 ENE /070 deg. DAVIS AVERAGE WIND AND DIRECTION....11.7 ENE /060 deg. DAVIS FASTEST ONE MINUTE WIND.......21 NE AT 1:39 P.M. PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.39 DEPARTURE....+0.23 ASOS..............N/A TOTAL PRECIPITATION FOR THE MONTH..........3.18 DEPARTURE....+1.34 ASOS..............2.99 TOTAL PRECIPITATION FOR THE YEAR...........3.18 DEPARTURE....+1.34 ASOS..............2.99 SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.3 DEPARTURE.....-0.2 TOTAL SNOWFALL FOR THE MONTH...............10.0 DEPARTURE.....+4.0 TOTAL SNOWFALL FOR THE SEASON..............34.0 DEPARTURE....+14.4 TOTAL SNOW DEPTH ON GROUND AT 7 A.M.........4 PRELIMINARY CLIMATE SUMMARY FOR JANUARY 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 1/1 49/32/41/+14/0/0/538/98 45 MPH W Aero 47 MPH W 1/2 39/26/33/+6/0.05/0/297/54 36 MPH S 1/3 51/39/45/+18/0.26/0/006/01 40 MPH SSW Aero 43 MPH S 1/4 42/36/39/+12/0.41/0/006/01 25 MPH NNE 1/5 36/24/30/+3/0.15/1.8/000/00 22 MPH NNE 1/6 35/22/29/+3/0.89/5.2/000/00 30 MPH NE 1/7 36/26/31/+5/0/0/0/0/.../.. 44 MPH W Aero 46 MPH W 1/8 32/26/29/+3/0.86/1.0/000/00 25 MPH N 1/9 29/21/25/-1/0/0/011/02 22 MPH NNW 1/10 38/28/33/+7/T/T/017/03 36 MPH SSW Aero 42 MPH SSW 1/11 32/26/29/+3/0.05/0.5/.../.. 27 MPH WSW 1/12 37/26/32/+6/0.56/1.5/000/00 33 MPH ENE 1/13 morning low temp. 30; a trace in light freezing drizzle.. DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR JANUARY 13 HIGH 57F IN 1890,1932 LOW -10F IN 1912,1914 PRECIP 1.54 INS. IN 1979 SNOWFALL 12.6 INS. IN 1964 PEAK GUST 74 MPH NE IN 1964 RECORDS FOR JANUARY 14 HIGH 65F IN 1995 LOW -12F IN 1914 PRECIP 1.11 INS. IN 1921 SNOWFALL 9.0 INS. IN 1999 PEAK GUST 68 MPH WNW IN 1976 TODAY'S REPORT BY: Robert Skilling