BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY WEDNESDAY, MARCH 24, 2004 ALL TIMES ARE IN EASTERN STANDARD TIME TODAY'S DISCUSSION....1:00 P.M. Temperatures averaging more than 8 degrees colder than normal over the past eight days have reduced the 5-degree surplus through the first half of the month to zero through the 23rd. Near normal temperatures are finally returning today with a morning low of 27 rising to near 50 degrees this afternoon. By: Robert Skilling TODAY'S SCHEDULED OBSERVATIONS.... 7 a.m. clear few clouds south thru west and hazy vsibility 20 miles; temp. 31; dewpoint 25; wind n at 04 mph..six hourly minimum temp. 27 deg. 3/24/2004 WED BHO SA 1155 CLR 20 335/31/25/3503/052/ AC S-W HAZY VSBY NE 30/ 8/040/ 4/001 51031 10031 20027 10 a.m. clear and hazy with 30 miles visibility and 39 deg; dewpoint 24; wind wnw at 07 mph but light variable past hour BHO SA 1455 CLR 30 347/39/24/3006/055/ FEW AC E-SE HAZY AND H ALF WND L/V/ 8/040 51012 1 p.m. few clouds with 35 miles visibility in light haze; temp. 49; dewpoint 26; wind w at 05 mph and light variable; six hourly high temp. 49 deg. BHO SA 1755 70 -SCT 35 333/49/26/2604/051/ ACSL FRMG VCNTY STN CUFRA FRMG SE-SW-NW HAZY AND H ALF WND L/V/ 8/140/ 58014 10049 20031 OUR WEATHER SUMMARY FOR TUESDAY MARCH 23 TEMPERATURE (DEGREES F) MAX.....40 NORMAL.....47 HAZEN SHELTER: 39.9 @ 3:19 P.M. MIN.... 15 NORMAL.....30 HAZEN SHELTER: 15.3 @ 5:23 A.M. MEAN....28 NORMAL.....38 DEPARTURE FROM 30-YEAR NORMAL.....-10 TOTAL DEPARTURE MARCH TO DATE....+ 5 THE MARCH TEMPERATURE DEPARTURE IS NOW ZERO.... ASOS MAX/MIN FOR 3/23: 39/15 // TIMES: 3:24 P.M. AND 6:04 A.M. HEATING DEGREE DAYS 33TAL HEATING DEGREE DAYS FOR YESTERDAY.......37 DEPARTURE.....+10 TOTAL HEATING DEGREE DAYS FOR MARCH..........684 DEPARTURE.....- 5 TOTAL HEATING DEGREE DAYS FOR THE SEASON....5310 DEPARTURE.....+47 TOTAL HEATING DEGREE DAYS FOR LAST SEASON...5643 DIFFERENCE...-333 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........33 SSW AT 4:24 P.M. ** AEROVANE.........35 SSW AT 4:24 P.M. ** ASOS.............32 SSW AT 3:47 P.M. FASTEST MILE FOR YESTERDAY..........N/A MAXIMUM 2-MINUTE ASOS AVERAGE.......29 SSW AT 4:24 P.M. AVERAGE WIND SPEED/DIRECTION........N/A AVERAGE ASOS WIND FOR YESTERDAY ....13.7 MPH ** last of several occurrences... PRECIPITATION (INCHES) UPDATED MARCH 24 TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00 ASOS..............0.00 TOTAL PRECIPITATION FOR MARCH..............2.97 DEPARTURE FOR MARCH TO DATE...............-0.58 TOTAL ASOS PRECIPITATION FOR MARCH.........2.42 TOTAL PRECIPITATION FOR 2004...............6.45 DEPARTURE....-5.94 TOTAL ASOS PRECIPITATION FOR 2004..........5.41 SNOWFALL (INCHES) TOTAL SNOWFALL FOR 24 HRS ENDING 7 A.M......0.0 TOTAL SNOWFALL FOR MARCH...................15.8 DEPARTURE..... +7.0 TOTAL SNOWFALL THIS SEASON.................57.5 DEPARTURE......+6.9 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 3/1 55/38/47/+15/0/0/588/87 27 MPH S 3/2 63/37/50/+18/0.04/0/298/44 50 MPH W Aerovane 50 MPH W 3/3 53/37/45/+13/0/0/592/87 46 MPH WNW Aerovane 51 MPH WNW 3/4 48/35/42/+9/0.07/0/000/00 22 MPH WSW 3/5 45/38/42/+9/0.02/0/000/00 31 MPH SSE 3/6 57/36/47/+14/0.26/0/028/04 53 MPH W Aerovane 55 MPH WNW 3/7 46/32/39/+6/0/0/658/95 43 MPH W 3/8 33/26/30/-4/0.50/3.5/000/00 31 MPH NE 3/9 31/26/29/-5/0.01/0.2/000/00 15 MPH SSE 3/10 39/27/33/-1/0/0/294/42 40 MPH NE 3/11 44/29/37/+2/0/0/113/16 38 MPH N 3/12 46/27/37/+2/0.10/0.8/156/22 51 MPH W 3/13 40/25/33/-2/0/0/682/96 40 MPH WNW Aerovane 43 MPH NW 3/14 40/21/31/-5/0/0/357/50 35 MPH S 3/15 50/32/41/+5/T/T/630/88 43 MPH W Aerovane 43 MPH W 3/16 35/24/30/-6/0.76/5.2/043/06 46 MPH NE 3/17 27/21/24/-13/0.45/4.0/000/00 47 MPH NE Aerovane 46 MPH NE 3/18 30/22/26/-11/0.18/2.0/138/19 27 MPH NNE 3/19 32/22/27/-10/0.01/0.1/015/02 35 MPH ENE 3/20 41/22/32/-6/0.25/T/409/56 37 MPH S 3/21 47/26/37/-1/0.32/0/154/21 47 MPH W Aerovane 48 MPH W 3/22 30/18/24/-14/0/0/714/97 38 MPH W Aerovane 43 MPH W 3/23 40/15/28/-10/0/0/.../.. 33 MPH SSW 3/24 morning low temp. 27; normal 30 There is JUST ONE NEW DAILY RECORD FOR MARCH 2004; record high max. temp. of 63 on March 02, the previous record was 61 in 1991. RECORDS FOR MARCH 24 HIGH 70 DEGREES IN 1920 LOW 06 DEGREES IN 1906 PRECIP 1.51 INCHES IN 1956 SNOWFALL 12.3 INCHES IN 1956 PEAK GUST 71 MPH W IN 1968 RECORDS FOR MARCH 25 HIGH 76 IN 1910 LOW 08 IN 1888,1956 PRECIP 1.84 INCHES IN 1909 SNOWFALL 1.0 INCHES IN 1912 PEAK GUST 69 MPH SE IN 1969 TODAY'S REPORT BY: Robert Skilling