BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY MONDAY APRIL 06 2004 ALL TIMES ARE IN EASTERN DAYLIGHT TIME [unless otherwise noted] TODAY'S DISCUSSION....2:00 P.M. STRONG WINDS AGAIN TODAY EQUAL YESTERDAY'S GUSTS..... AEROVANE WIND NEAR 50 MPH.... Beautiful clear sky, visibility 90 miles but west-northwest to northwest winds are gusting past 40 MPH with a peak to 49 MPH on Aerovane system early this afternoon and that just about equals yesterday's gust which was 48 MPH NW. By: Robert Skilling TODAY'S SCHEDULED OBSERVATIONS.... 4/6/2004 TUE 8 a.m. clear with a few clouds and 80 miles visibility; temp. 28; dewpoint 08; wind nw at 22 gusting 33 mph; six hourly min. temp. 26 deg. BHO SA 1155 CLR 80 038/29/8/2919G29/964/ FEW SC OFFSHR E-ESE FEW ACSL E-SE FEW DENSE CI NW-NE PK WND 3030/28/ 8/542 51010 10029 20026 10 a.m. clear with view of 90 miles and temp. 38; dewpoint 13; wnd wnw at 14 gusting 24 mph; BHO SA 1455 CLR 90 034/38/13/3012G21/963/ FEW CU DSNT NW-ESE FEW CI DSNT N-NE PK WND 3029/12/ 8/101 58004 METAR KBHO FEW30 FEW250 90SM 03/M11 A2963 PK WND 30030/1412 SLP034 T00331106 58004 1 p.m. clear few small cumulus 90 miles visibility; temp. 48; dewpoint 18; wind wnw25 gusting 39 mph; peak wind 43 mph nw at 12 past the hour BHO SA 1755 CLR 90 023/48/18/2922G34/960/ FEW SML CU PK WND 3237/12/ 8/100 56011 10048 20028 METAR KBHO FEW55 90SM 08/M07 A2960 PK WND 32037/1712 SLP023 T00891078 56011 10048 20028 OUR WEATHER SUMMARY FOR MONDAY APRIL 05 TEMPERATURE (DEGREES F) MAX.....40 NORMAL.....51 HAZEN SHELTER: 40.0 @ 3:12 P.M. MIN.... 27 NORMAL.....33 HAZEN SHELTER: 27.0 @ 11:39 P.M. * MEAN....34 NORMAL.....43 DEPARTURE FROM 30-YEAR NORMAL....- 9 TOTAL DEPARTURE APRIL TO DATE....- 24 THE APRIL TEMPERATURE DEPARTURE IS 4.6 COLDER THAN NORMAL ASOS MAX/MIN FOR 4/04: 40/27 /// TIMES: 2:13 P.M. AND 11:51 P.M. * * eastern standard time HEATING DEGREE DAYS TOTAL HEATING DEGREE DAYS FOR YESTERDAY.......31 DEPARTURE.....+ 9 TOTAL HEATING DEGREE DAYS FOR APRIL......... 137 DEPARTURE....+ 22 TOTAL HEATING DEGREE DAYS FOR THE SEASON....5629 DEPARTURE.....+50 TOTAL HEATING DEGREE DAYS FOR LAST SEASON...5958 DIFFERENCE...-329 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........45 NW AT 9:24 P.M. AEROVANE.........45 NW AT 9:24 P.M. ASOS.............40 NW AT 9:25 P.M. FASTEST MILE FOR YESTERDAY..........34 NW AT 7:01 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......35 NW AT 9:25 P.M. AVERAGE WIND SPEED/DIRECTION......23.9 WNW AVERAGE ASOS WIND FOR YESTERDAY ..23.5 ** Eastern Standard Time PRECIPITATION (INCHES) UPDATED APRIL 06 TOTAL PRECIPITATION 24 HRS ENDING 8 A.M....TRACE ASOS..............0.00 TOTAL PRECIPITATION FOR APRIL .............4.08 DEPARTURE FOR APRIL TO DATE...............+3.18 TOTAL ASOS PRECIPITATION FOR MARCH.........4.49 (corrected) TOTAL PRECIPITATION FOR 2004..............11.75 DEPARTURE....-2.48 TOTAL ASOS PRECIPITATION FOR 2004.........10.72 [corrected) SNOWFALL (INCHES) TOTAL SNOWFALL FOR 24 HRS ENDING 8 A.M.....TRACE TOTAL SNOWFALL FOR APRIL...................0.5 OTAL SNOWFALL FOR MARCH....................15.8 TOTAL SNOWFALL THIS SEASON.................58.0 DEPARTURE......+4.6 PRELIMINARY CLIMATE SUMMARY FOR MARCH 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 4/1 41/36/39/-2/3.47/0/000/00 44 MPH NE 4/2 37/36/36/-5/0.30/0/000/00 41 MPH NE 4/3 38/35/37/-5/N/A/0/000/00 25 MPH NE 4/4 47/35/41/-1/N/A/0/.../.. 32 MPH NW 4/5 40/27/34/-9/N/A/0.5/.../.. 45 MPH NW 4/6 morning low temp. 26 deg... ** it will be several days before ALL the calendar day April precipitation amounts will be recorded... There is ONE NEW DAILY RECORD FOR APRIL 2004; RAINFALL OF 3.47 INCHES for April 1st, the old record was 2.28 inches. THE DAILY EXTREMES.... RECORDS FOR APRIL 06 HIGH 82 IN 1921 LOW 16 IN 1982 PRE 1.72 INS IN 1886 SNOW 12.3 INS IN 1982 WIND 71e MPH WNW IN 1940 RECORDS FOR APRIL 07 HIGH 86 IN 1929 LOW 13 IN 1982 PRECIP 1.72 INCHES IN 1924 SNOWFALL 4.5 INCHES IN 1967, 1996 PEAK GUST 65 MPH WNW IN 1982 TODAY'S REPORT BY: Robert Skilling