BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY THURSDAY, FEBRUARY 19, 2004 ALL TIMES ARE IN EASTERN STANDARD TIME DAILY DISCUSSION TODAY AT 1 P.M. Yesterday's snowfall totaled just 0.5 inch bring the February total to only 3.0 inches and this is about 6 inches below normal for the month to date. Precipitation for February is 1.74 inches and is nearly one inch drier than normal while the year has a departure of nearly 4 inches. TODAY'S OBSERVATIONS.... 2/19/2004 THU 7 a.m. clear with 35 miles visibility and 21 deg; wind nw at 13 mph... BHO SA 1155 CLR 35 059/21/8/3211/970/ AC/FEW ACC S-NW SNW VIRGA SW-WSW CS LYR XTDNG NNE-ESE VSBY WNW 45 TOTAL NEW SNW PST 24 HRS 0.1 IN/ 8/088/ 55002 MANUAL 70000 ASOS 70001 10025 20021 10 a.m. clear with 40 miles visibility and 31 deg; wind nw at 17 gusts 29 mph.... BHO SA 1455 CLR 40 057/31/12/3215G25/970/ FEW AC NW-NE DENSE CI LYR DSNT NNE-E WND 29V36/ 8/042/ 58002 1 p.m. clear with 40 miles visibility and 37 deg; wind wnw at 18 gusting 30 mph.... BHO SA 1755 CLR 40 049/37/15/3016G26/967/ DENSE CI LYR DSNT NE-E PK WND 3127/37/ WND 26V33/ 8/002/ 58008 10037 20021 OUR WEATHER SUMMARY FOR WEDNESDAY, FEBRUARY 18 TEMPERATURE (DEGREES F) MAX.....29 NORMAL.....37 MIN.... 24 NORMAL.....21 MEAN....27 NORMAL.....29 DEPARTURE FROM 30-YEAR NORMAL.....-2 TOTAL DEPARTURE FEBRUARY TO DATE: +4 DEPARTURE FOR THE FEBRUARY TO DATE: +0.0 DEGREES/DAY ASOS MAX/MIN FOR 2/18: 29/24 / 4:10 P.M. & 7:52 A.M. HEATING DEGREE DAYS TOTAL HEATING DEGREE DAYS FOR YESTERDAY.......37 DEPARTURE.....+2 TOTAL HEATING DEGREE DAYS FOR FEBRUARY...... 675 DEPARTURE.... -4 TOTAL HEATING DEGREE DAYS FOR THE SEASON....4278 DEPARTURE.....+57 TOTAL HEATING DEGREE DAYS FOR LAST SEASON...4530 DIFFERENCE...-252 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........35 N AT 4:12 P.M. AEROVANE.........37 N AT 2:10 P.M. ASOS.............32 N AT 4:12 P.M. FASTEST MILE FOR YESTERDAY..........24 N AT 2:11 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......24 N AT 2:11 P.M. AVERAGE ASOS WIND FOR YESTERDAY ....12.6 MPH PRECIPITATION (INCHES) TOTAL PRECIPITATION 24 HR ENDING 7 A.M.....TRACE ASOS..............0.01 (NOT REAL-TIME) TOTAL PRECIPITATION FOR FEBRUARY...........1.74 TOTAL DEPARTURE FOR FEBRUARY TO DATE......-0.85 TOTAL ASOS PRECIPITATION FOR FEBRUARY......1.58 TOTAL PRECIPITATION FOR JANUARY............1.72 DEPARTURE....-3.06 ASOS..............1.40 TOTAL PRECIPITATION FOR 2004...............3.46 DEPARTURE....-3.91 TOTAL ASOS PRECIPITATION FOR 2004..........2.98 SNOWFALL (INCHES) TOTAL SNOWFALL FOR 24 HRS ENDING 7 A.M......0.1 TOTAL SNOWFALL FOR FEBRUARY TO DATE.........3.0 DEPARTURE......-5.7 TOTAL SNOWFALL FOR JANUARY ................8.5 DEPARTURE......-7.1 TOTAL SNOWFALL FOR THE SEASON..............41.7 DEPARTURE......+3.9 PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY, 2004......CALENDAR DAY DATA FEBRUARY 2004 DAILY 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 31/9/20/-6/0/0/599/100 33 NW Aerovane 38 MPH NW 2/2 37/18/28/+2/0/0/578/96 21 NNW 2/3 42/25/34/+8/0.51/0.2/000/00 47 SSE Aerovane 49 MPH SSE 2/4 42/24/33/+7/T/0/564/93 46 W Aerovane 47 MPH W 2/5 34/21/28/+1/0/0/451/74 33 WNW 2/6 33/24/29/+2/1.08/2.3/000/00 28 SSE 2/7 39/24/32/+5/0.12/T/092/15 37 WNW 2/8 24/12/18/-9/0/0/616/100 59 WNW Aerovane 62 MPH WNW 2/9 41/20/31/+4/0/0/279/45 47 SSW Aerovane 48 MPH SSW 2/10 44/32/38/+11/0/0/546/88 31 WSW 2/11 35/21/28/+1/0/0/618/99 46 W Aerovane 46 MPH W 2/12 35/16/26/-2/0/0/294/47 25 SW 2/13 38/26/32/+4/0/0/535/85 37 W 2/14 40/28/34/+6/0/0/581/92 32 W 2/15 29/9/19/-9/T/T/583/92 39 NW 2/16 27/8/18/-10/0/0/631/99 20 NNW 2/17 29/11/20/-9/0/0/346/54 21 SE 2/18 29/24/27/-2/0.03/0.5/006/01 35 N Aerovane 37 MPH N 2/19 morning low temp. 20 NEW DAILY RECORDS FOR MONTH OF FEBRUARY 2004 TO DATE: NONE RECORDS FOR FEBRUARY 19 HIGH 66F IN 1981 LOW -5F IN 1923 PRECIP 2.73 INCHES IN 1972 SNOWFALL 12.0 INCHES IN 1893 PEAK GUST 76 MPH ENE IN 1972 RECORDS FOR FEBRUARY 20 HIGH 66F IN 1930 LOW -4F IN 1966 PRECIP 1.90 INCHES IN 1934 SNOWFALL 15.0 INCHES IN 1921,1934 PEAK GUST 78 MPH NW IN 1972 TODAY'S REPORT BY: Robert Skilling