BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY WEDNESDAY, FEBRUARY 25, 2004 ALL TIMES ARE IN EASTERN STANDARD TIME TODAY'S DISCUSSION.... Clear sky today except for low clouds seen along the east and southeast horizon... Temperatures are averaging slightly colder than normal starting out with a morning low of 19 degrees compared to the normal of 22. The air is very dry with the relative humidity near 30% early this afternoon. TODAY'S OBSERVATIONS.... 2/25/2204 WED 7 a.m. clear, clouds offshore along horizon ne-se; visibility 70 miles; temp. 19; dewpoint 01; wind nw at 12 mph six hour low temp. 19 deg; six hour high temp. 27 deg. BHO SA 1155 CLR 70 152/19/1/3212/998/ SC LYR OFFSHR DSNT NE-SE/ 8/500/ 51010 10027 20019 10 a.m. clear, visibility 70 miles, wind nw at 08 mph and variable wnw to n; temp. 29; dewpoint 05, rel. humidity 35%.. BHO SA 1455 CLR 70 161/29/5/3207/001/ WND 29V01/ 51009 1 p.m. clear clouds offshore distant e through se; visibility 70 miles; temp. 36; dewpoint 09; wind nnw at 12 gusting 22 mph... BHO SA 1755 CLR 70 162/36/9/3310G19/001/ SC OFFSHR DSNT E-SE WND 30V36/ 8/500/ 50001 10036 20019 OUR WEATHER SUMMARY FOR TUESDAY FEBRUARY 24 TEMPERATURE (DEGREES F) MAX.....35 NORMAL.....38 HAZEN SHELTER: 35.4 @ 1:56 P.M. MIN.... 22 NORMAL.....22 HAZEN SHELTER: 22.2 @ 6:17 A.M. MEAN....29 NORMAL.....30 DEPARTURE FROM 30-YEAR NORMAL.....-1 TOTAL DEPARTURE FEBRUARY TO DATE: +20 DEPARTURE FOR FEBRUARY TO DATE: +0.6 DEGREES/DAY ASOS MAX/MIN FOR 2/24 35/22 AT 3:53 P.M. & 6:23 A.M. HEATING DEGREE DAYS TOTAL HEATING DEGREE DAYS FOR YESTERDAY.......36 DEPARTURE.....+1 TOTAL HEATING DEGREE DAYS FOR FEBRUARY...... 834 DEPARTURE.... -25 TOTAL HEATING DEGREE DAYS FOR THE SEASON....4475 DEPARTURE.....+42 TOTAL HEATING DEGREE DAYS FOR LAST SEASON...4714 DIFFERENCE...-239 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........24 NW AT 11:09 P.M. AEROVANE.........27 NW AT 11:09 P.M. ASOS.............23 NW AT 11:09 P.M. FASTEST MILE FOR YESTERDAY..........17 NW AT 11:09 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......18 NW AT 11:10 P.M. AVERAGE WIND SPEED/DIRECTION........10.9 MPH NW AVERAGE ASOS WIND FOR YESTERDAY ....10.3 MPH PRECIPITATION (INCHES) TOTAL PRECIPITATION 24 HR ENDING 7 A.M.....0.00 ASOS..............0.00 TOTAL PRECIPITATION FOR FEBRUARY...........1.76 TOTAL DEPARTURE FOR FEBRUARY TO DATE......-1.70 TOTAL ASOS PRECIPITATION FOR FEBRUARY......1.59 TOTAL PRECIPITATION FOR 2004...............3.48 DEPARTURE....-4.76 TOTAL ASOS PRECIPITATION FOR 2004..........2.99 SNOWFALL (INCHES) TOTAL SNOWFALL FOR 24 HRS ENDING 7 A.M......0.0 TOTAL SNOWFALL FOR FEBRUARY TO DATE.........3.0 DEPARTURE......-8.1 TOTAL SNOWFALL FOR THE SEASON..............41.7 DEPARTURE......+1.5 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 Aerovane 40 MPH 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 39/20/30/+1/0/0/632/98 38 NW Aerovane 44 MPH NW 2/20 43/23/33/+4/T/T/428/66 * 18 WNW 2/21 39/29/34/+5/0.02/T/000/00 * 27 E Aerovane 30 MPH E 2/22 39/29/34/+4/0/0/000/00 33 WNW Aerovane 37 MPH NW 2/23 42/24/33/+3/0/0/649/99 29 NW Aerovane 34 MPH NW 2/24 35/22/29/-1/0/0/.../.. 24 NW 2/25 morning low temp. 19; normal now 22 * corrected to add a trace of snow for these days NEW DAILY RECORDS FOR MONTH OF FEBRUARY 2004 TO DATE: NONE RECORDS FOR FEBRUARY 25 HIGH 67F IN 1976 LOW -10F IN 1894 PRECIP 2.40 INCHES IN 1981 SNOWFALL 13.6 INCHES IN 1966 PEAK GUST 75 MPH S IN 1965 RECORDS FOR FEBRUARY 26 HIGH 67F IN 1957 LOW -07F 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 -08F 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: Robert Skilling