BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY TUESDAY, MARCH 29, 2005 TODAY'S DISCUSSION..... Low clouds are continuing throughout the day along with a few very light showers or some drizzle with only a trace since 7 a.m. The rainstorm that ended early this morning left behind 2.50 inches bringing our monthly total to over 6 inches. March temperatures continue very much on the cold side of normal averaging down 4.5 degrees below the average through yesterday. TODAY'S OBSERVATIONS 3/29/2005 TUE 7 a.m. obscurement with zero visibility in heavy fog; temp./dewpoint 38; wind nnw at 10 mph; six hourly min. temp. 38; 24 hourly rainfall, 2.40 inches.. BHO SA 1155 W1 X0F 990/38/38/3309/950/ 8//// 53011 ASOS 60024 MANUAL 60025 ASOS 70237 MANUAL 70240 10039 20038 10 a.m. overcast stratus at three hundred feet; visibility 10 miles with thin fog; temp. 42; dewpoint 41; wind nnw at 12 mph... BHO SA 1455 E3 OVC 10 014/42/41/3310/957/ VSBY W-N 6 THN F ALQDS/ 8/6// 51024 1 p.m. low stratus overcast at five hundred feet; visibility 15 miles but only 5 miles ESE but 25 miles WNW-N-NE, very light rain shower in progress; temp. 44; dewpoint 42; wind nnw at 17 gust 27 mph; six hourly rainfall trace; six hourly max temp. 44; min. temp 38 BHO SA 1755 E5 OVC 15RW- 017/44/42/3415G23/958/ VSBY ESE 5 SE-SW 10 WNW-N-NE 25 RB40 PCPN VRY LGT WND 31V01/ 8/6// 50003 6000/ 10044 20038 WEATHER SUMMARY FOR MONDAY MARCH 28: TEMPERATURE (DEGREES F) MAX.....42 NORMAL.....49 HAZEN 42.0 @ 3:05 P.M. MIN.....32 NORMAL.....31 HAZEN 31.7 @ 12:23 A.M. MEAN....37 NORMAL.....40 DEPARTURE FROM 30-YEAR NORMAL...... - 3 TOTAL DEPARTURE FOR THE MONTH......-119 (-4.5 DEGREES/DAY) PRECIPITATION (INCHES) THROUGH THIS MORNING TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....2.40 DEPARTURE....+2.25 ASOS..............2.37 TOTAL PRECIPITATION FOR THE MONTH..........6.11 DEPARTURE....+1.77 ASOS..............5.81 TOTAL PRECIPITATION FOR THE YEAR..........16.45 DEPARTURE....+3.27 ASOS.............15.47 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....+13.6 TOTAL SNOWFALL FOR THE SEASON.............119.2 DEPARTURE....+62.4 TOTAL SNOW ON THE GROUND..................TRACE YESTERDAY'S PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........27 N AT 6:33 P.M. ** AEROVANE.........25 NNE AT 10:01 A.M. ASOS.............22 N AT 6:33 P.M. DAVIS............25 NNE AT 10:01 A.M. FASTEST MILE FOR YESTERDAY......... 18 N AT 6:33 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......20 N AT 6:33 P.M. MAXIMUM 1-MINUTE DAVIS AVERAGE......19 N AT 6:33 P.M. OUR AVERAGE SPEED AND DIRECTION.....12.4 N ASOS AVERAGE AND DIRECTION..........13.5 N [360 deg.] DAVIS AVERAGE AND DIRECTION.........12.6 NNE [030 deg.] ** last of several occurrences 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/-5/0.47/4.4/022/03 40 MPH N Aero 41 MPH NNE 3/25 47/30/39/0/0/0/.../.. 30 MPH W 3/26 40/26/33/-6/0/0/.../.. 22 MPH 3/27 52/28/40/0/0/0/.../.. 24 MPH SSW 3/28 42/32/37/-3/2.06/0/000/00 27 MPH N 3/29 morning low temp. 38 deg ; rainfall midnight to 7 a.m. 0.44 inch There are NO NEW DAILY RECORDS set for March to date.... DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): 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 29 HIGH 85 IN 1945 LOW -02 IN 1923 PRECIP 2.78 INCHES IN 1984 SNOWFALL 13.5 INCHES IN 1984 PEAK GUST 95 MPH ENE IN 1984 RECORDS FOR MARCH 30 HIGH 83 IN 1977 LOW 10 IN 1887 PRECIP 2.82 INCHES IN 2001 SNOWFALL 3.9 INCHES IN 1957 PEAK GUST 60 MPH NW IN 1999 TODAY'S REPORT BY: Robert Skilling