BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY THURSDAY, MARCH 31, 2005 TODAY'S DISCUSSION..... SUN SHINING BRIGHTLY THROUGH HIGH THIN CLOUDS, BUT NORTHEAST WIND KEEPING TEMPERATURES ON THE CHILLY SIDE.. Some increase in high cloudiness is being observed this morning, but otherwise it's another great early Spring day. The only "fly in the ointment" is the chill in the air as a result of a stiff northeast wind coming right off the very chilly ocean. March is averaging 4.0 degrees colder than normal daily. The ice cover on the nearby ponds is beginning to melt and a very small amount of open water can be seen on Ponkapoag Pond. TODAY'S OBSERVATIONS 3/31/2005 THU 7 a.m. BHO SA 1155 250 -BKN 20 244/39/29/0513/025/ HAZY/ 8/001 51006 10040 20035 10 a.m. BHO SA 1455 250 -BKN 30 254/43/29/0413/028/ FEW SC NNE-SE WND 35V08 HAZY/ 8/501 53010 WEATHER SUMMARY FOR WEDNESDAY MARCH 30: TEMPERATURE (DEGREES F) MAX.....52 NORMAL.....50 HAZEN 51.9 @ 2:41 P.M. MIN.....34 NORMAL.....32 HAZEN 34.3 @ 5:28 A.M. MEAN....43 NORMAL.....41 DEPARTURE FROM 30-YEAR NORMAL...... + 2 TOTAL DEPARTURE FOR THE MONTH......-114 (-4.0 DEGREES/DAY) PRECIPITATION (INCHES) THROUGH THIS MORNING TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00 DEPARTURE....-0.15 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........6.12 DEPARTURE....+1.48 ASOS..............5.82 TOTAL PRECIPITATION FOR THE YEAR..........16.46 TOTAL FOR ASOS FOR THE YEAR...............15.48 SNOWFALL (INCHES) THROUGH THIS MORNING TOTAL SNOWFALL 24 HRS ENDING 7 A.M........ 0.0 DEPARTURE.....-0.2 TOTAL SNOWFALL FOR THE MONTH.............. 25.0 DEPARTURE....+13.2 TOTAL SNOWFALL FOR THE SEASON.............119.2 DEPARTURE....+62.0 TOTAL SNOW ON THE GROUND..................NONE YESTERDAY'S PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........33 N AT 8:04 A.M. AEROVANE.........32 N AT 8:04 A.M. ASOS.............28 N AT 8:04 A.M. DAVIS............31 N AT 8:09 A.M. FASTEST MILE FOR YESTERDAY......... 18 N AT 8:06 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......21 N AT 8:05 A.M. MAXIMUM 1-MINUTE DAVIS AVERAGE......22 N AT 8:05 A.M. OUR AVERAGE SPEED AND DIRECTION.....10.6 NNW ASOS AVERAGE AND DIRECTION..........10.7 ENE [060 deg] DAVIS AVERAGE AND DIRECTION.........10.5 N [020 deg] THE PRELIMINARY CLIMATE SUMMARY FOR MARCH 2005...... CALENDAR DAY DATA DATA REPORTED HERE ENDING MIDNIGHT: 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 3/1 29/23/26/-6/0.53/3.6/000/00 52 MPH NNE Aero 52 MPH NNE 3/2 33/20/27/-5/T/T/264/39 42 MPH W Aero 45 MPH W 3/3 28/15/22/-10/0/0/640/94 43 MPH W Aero 43 MPH W 3/4 31/12/22/-11/0/0/561/82 40 MPH W Aero 44 MPH W 3/5 39/18/29/-4/0/0/679/99 29 MPH W 3/6 40/24/32/-1/0/0/345/50 42 MPH SSW Aero 44 MPH SSW 3/7 47/33/40/+7/0/0/201/29 45 MPH S Aero 50 MPH SSE 3/8 42/12/27/-7/1.20/5.7/000/00 63 MPH WNW Aero 66 MPH WNW 3/9 21/06/14/-20/0.02/0.3/663/95 54 MPH W Aero 58 MPH W 3/10 29/11/20/-14/0/0/673/96 29 MPH WSW 3/11 32/18/26/-10/0.07/1.0/134/19 29 MPH E 3/12 34/28/31/-4/1.19/8.9/000/00 27 MPH NE 3/13 37/25/31/-4/0.01/0.1/291/41 25 MPH W 3/14 39/21/30/-6/0/0/669/94 31 MPH WNW 3/15 44/24/34/-2/0/0/512/72 30 MPH WNW 3/16 43/26/35/-1/0/0/675/94 29 MPH W 3/17 43/23/33/-4/0/0/606/84 25 MPH WNW 3/18 43/29/36/-1/0/0/506/70 27 MPH WNW 3/19 45/25/35/-2/0/0/697/96 28 MPH WNW Aero 31 MPH WNW 3/20 48/28/38/0/T/0/365/50 27 MPH SSW 3/21 41/33/37/-1/0/0/007/01 21 MPH NNE 3/22 52/29/41/+3/0/0/720/98 29 MPH W 3/23 42/30/36/-2/0.12/1.0/022/03 36 MPH ENE 3/24 37/31/34/-5/0.47/4.4/037/05 40 MPH N Aero 41 MPH NNE 3/25 47/30/39/0/0/0/461/62 30 MPH W 3/26 40/26/33/-6/0/0/709/95 22 MPH 3/27 52/28/40/0/0/0/705/94 24 MPH SSW 3/28 42/32/37/-3/2.15/0/000/00 27 MPH N 3/29 47/38/43/+3/0.36/0/000/00 38 MPH NNW 3/30 52/34/43/+2/0/0/.../.. 33 MPH N 3/31 Morning low 35 degrees. DAILY EXTREMES Daily peak gust records are for the period 1940-2004. Temperature and precipitation records are for the full period of record 1885-2004. All estimated gusts are marked with an 'e'. RECORDS FOR MARCH 31 HIGH 89 IN 1998 [RECORD HIGH FOR MONTH] LOW 16 IN 1923 PRECIP 2.89 IN 1987 SNOWFALL 15.0 IN 1997 PEAK GUST 81 MPH SSE IN 1987 RECORDS FOR APRIL 1 HIGH 74 IN 1967 LOW 6 IN 1923 [RECORD FOR MONTH] PRECIP 3.47 IN. IN 2004 [RECORD FOR MONTH] SNOWFALL 15.0 IN. IN 1997 [RECORD FOR MONTH] PEAK GUST 75 MPH SSW IN 1962 TODAY'S REPORT BY: Matt Douglas