BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY WEDNESDAY APRIL 07 2004 ALL TIMES ARE EASTERN DAYLIGHT TIME [unless otherwise noted] TODAY'S DISCUSSION....2:00 P.M. By: Robert Skilling TODAY'S SCHEDULED OBSERVATIONS.... 4/7/2004 WED 8 a.m. high clouds with 70 miles visibility and 37 deg; dewpoint 13; wind west at 13 mph; six hour minimum temp. 32 deg.. BHO SA 1155 100 SCT E220 BKN 250 OVC 70 064/37/13/2611/971/ VIRGA S-W OVC PTLY THN N-ESE VSBY NW 80/ 8/077/ 51007 10037 20032 11 a.m. high clouds with 70 miles visibility and 46 deg; wind w at 15 gusting 22 mph... BHO SA 1455 E95 BKN 250 BKN 70 054/46/17/2613G19/969/ LWR ACSL ALQDS FEW PATCHES SNW VIRGA/ 8/041 58010 METAR KBHO 1455 25012G19 FEW70 95BKN 250BKN 70SM 08/M08 A2969 SLP054 T00781083 FEW ACSL ALQDS PTCHS SNW VIRGA ALQDS/ 8/041 58010 BHO SA 1755 E70 BKN 70 036/51/28/2512G18/964/ FEW SML CU LWR ACSL ALQDS/ 8/140 56018 10051 20037 METAR KBHO 1755 25012G19 70SM FEW50 FEW65 BKN70 11/M02 A2964 SLP036 T01061022 FEW SML CU ACSL ALQDS/ 8/140 56018 10106 20033 ALL TIMES ARE EASTERN DAYLIGHT TIME [unless otherwise noted] OUR WEATHER SUMMARY FOR TUESDAY APRIL 06 TEMPERATURE (DEGREES F) MAX.....49 NORMAL.....51 HAZEN SHELTER: 49.4 @ 3:43 P.M. MIN.... 26 NORMAL.....33 HAZEN SHELTER: 26.1 @ 6:19 A.M. MEAN....38 NORMAL.....43 DEPARTURE FROM 30-YEAR NORMAL....- 5 TOTAL DEPARTURE APRIL TO DATE....- 27 THE APRIL TEMPERATURE DEPARTURE IS 4.7 COLDER THAN NORMAL ASOS MAX/MIN FOR 4/06: 49/26 /// TIMES: 4:46 P.M. AND 6:41 P.M. HEATING DEGREE DAYS TOTAL HEATING DEGREE DAYS FOR YESTERDAY.......27 DEPARTURE.....+ 5 TOTAL HEATING DEGREE DAYS FOR APRIL......... 164 DEPARTURE....+ 27 TOTAL HEATING DEGREE DAYS FOR THE SEASON....5656 DEPARTURE.....+55 TOTAL HEATING DEGREE DAYS FOR LAST SEASON...5990 DIFFERENCE...-334 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........52 WNW AT 3:56 P.M. AEROVANE.........56 WNW AT 3:56 P.M. ASOS.............51 WNW AT 3:58 P.M. FASTEST MILE FOR YESTERDAY..........42 NW AT 4:04 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......43 NW AT 4:05 P.M. AVERAGE WIND SPEED/DIRECTION........N/A AVERAGE ASOS WIND FOR YESTERDAY ....20.4 PRECIPITATION (INCHES) UPDATED APRIL 07 TOTAL PRECIPITATION 24 HRS ENDING 8 A.M....0.00 ASOS..............0.00 TOTAL PRECIPITATION FOR APRIL .............4.08 DEPARTURE FOR APRIL TO DATE...............+3.03 TOTAL ASOS PRECIPITATION FOR MARCH.........4.49 TOTAL PRECIPITATION FOR 2004..............11.75 DEPARTURE....-2.63 TOTAL ASOS PRECIPITATION FOR 2004.........10.72 SNOWFALL (INCHES) TOTAL SNOWFALL FOR 24 HRS ENDING 8 A.M.....0.0 TOTAL SNOWFALL FOR APRIL...................0.0 OTAL SNOWFALL FOR MARCH....................15.8 TOTAL SNOWFALL THIS SEASON.................58.0 DEPARTURE......+4.4 PRELIMINARY CLIMATE SUMMARY FOR APRIL 2004......CALENDAR DAY DATA CALENDAR DAY DATA RUNS ON STANDARD TIME THE YEAR ROUND... APRIL 2004 DAILY CALENDAR DATA...ENDING MIDNIGHT EST... 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/-5/0/0/0/000/00 25 MPH NE 4/4 47/35/41/-1/0.22/0/008/01 32 MPH NW 4/5 40/27/34/-9/0.09/0.5/178/23 45 MPH NW Aerovane 46 MPH NW 4/6 49/26/38/-5/0/0/.../.. 52 MPH WNW Aerovane 56 MPH WNW 4/7 morning low temp. 32 deg 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 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 RECORDS FOR APRIL 08 HIGH 87 IN 1991 LOW 17 IN 1888 PRECIP 1.78 INCHES IN 1956 SNOWFALL 9.3 INCHES IN 1956 PEAK GUST 70 MPH S IN 2000 TODAY'S REPORT BY: Robert Skilling