BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY CLIMATE SUMMARY TUESDAY, JUNE 22, 2004 ALL TIMES ARE IN EASTERN DAYLIGHT TIME [unless otherwise noted] DISCUSSION AT 2 P.M. A little sun this morning but heavily overcast early this afternoon as some rainfall approaches. Monthly rainfall 1.5 inches below normal. TODAY'S OBS... 8 a.m. cloudy with breaks and visibility 20 miles and hazy; temp. 64; dewpoint 58; wind ssw at 10 mph; six hourly minimum temp. 58 deg. BHO SA 1155 E110 BKN 250 OVC 20 125/64/58/2109/990/ OVC PTLY THN BINOVC ALQDS HAZY/ 8/071 58001 10064 20058 11 a.m. overcast with 20 miles visibility and hazy; temp. 73; dewpoint 62; wind ssw at 15 gusting 21 mph... BHO SA 1455 E130 OVC 20 114/73/62/2013G18/987/ FEW SML CU OVC PTLY THN AND BINOVC OVHD HIER CLDS VSB HAZY/ 8/171 56011 2 p.m. cloudy with 15 miles visibility and hzy; temp. 69; dewpoint 63; wind south at 21 gusting 29 mph; six hourly max. temp. 74 deg. BHO SA 1755 20 SCT E40 BKN 55 OVC 15 098/69/63/1818G25/982/ HAZY/ 8/5// 58016 10074 20064 WEATHER SUMMARY FOR MONDAY JUNE 21: TIMES: EASTERN DAYLIGHT TIME TEMPERATURE (DEGREES F) MAX.....76 NORMAL.....77 Hazen shelter: 76.4... @ 4:05 p.m. MIN.....52 NORMAL.....57 Hazen shelter: 51.9 ...@ 5:20 a.m. MEAN....64 NORMAL.....67 DEPARTURE FROM 30-YEAR NORMAL...... - 3 TOTAL DEPARTURE FOR THE MONTH...... - 14 JUNE IS AVERAGING NEAR NORMAL DAILY....0.9 DEGREE COOLER THAN NORMAL HEATING DEGREE DAYS TOTAL HEATING DEGREE DAYS FOR YESTERDAY....... 1 DEPARTURE.....- 1 TOTAL HEATING DEGREE DAYS FOR THE MONTH...... 77 DEPARTURE.... +13 TOTAL HEATING DEGREE DAYS FOR THE SEASON....6290 DEPARTURE.....-71 TOTAL HEATING DEGREE DAYS FOR LAST SEASON...6877 DIFFERENCE...-587 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........31 WSW AT 6:54 p.m. AEROVANE.........33 WSW AT 6:54 p.m. ASOS.............29 WSW AT 6:54 p.m. DAVIS............31 W AT 5:00 p.m. MAXIMUM 2-MINUTE ASOS AVERAGE.......25 WW AT 5:07 p.m. OUR AVERAGE WIND SPEED/DIRECTION.... 14.7 W ASOS AVERAGE WIND SPEED............. 15.2 W [260 deg ] DAVIS AVERAGE WIND SPEED/DIRECTION.. 14.9 W [270 deg ] PRECIPITATION (INCHES) THROUGH THIS MORNING (EDT) TOTAL PRECIPITATION 24 HRS ENDING 8 A.M....0.00 DEPARTURE...-0.13 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........1.29 DEPARTURE....-1.47 ASOS..............1.25 TOTAL PRECIPITATION FOR THE YEAR..........22.21 DEPARTURE....-2.29 ASOS.............20.50 PRELIMINARY CLIMATE SUMMARY FOR JUNE 2004......CALENDAR DAY DATA DATA REPORTED: 24 HOUR PERIODS ENDING MIDNIGHT EST DATE MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST AERO: Aerovane recording wind system when significant TSTM: Thunderstorm day ....: Data not yet available 6/1 51/46/49/-13/0.32/000/00 28 MPH E 6/2 74/46/60/-2/0.08/254/28 31 MPH WNW TSTM 6/3 72/50/61/-1/0.21/463/51 40 MPH NW TSTM *Aerovane 46 MPH NW 6/4 72/47/60/-3/0/835/92 21 MPH S 6/5 69/50/60/-3/0/501/55 35 MPH E 6/6 55/48/52/-11/0.32/000/00 31 MPH NE 6/7 73/48/61/-3/T/428/47 21 MPH S 6/8 87/57/72/+8/0/793/87 29 MPH SSW 6/9 90/67/79/+15/0.23/813/89 29 MPH SW TSTM 6/10 69/54/62/-2/0.05/146/16 32 MPH NE 6/11 70/49/60/-5/0/887/97/ 27 MPH NW 6/12 71/49/60/-5/0/897/98 23 MPH S 6/13 74/51/63/-2/0/805/88 31 MPH S 6/14 69/54/62/-3/0/T/027/03 32 MPH S 6/15 86/62/74/+8/0/669/73 30 MPH W 6/16 85/66/76/+10/0/824/90 20 MPH NW 6/17 85/63/74/+8/0/0.01/.../.. 20 MPH ENE [precip. corrected ] 6/18 65/60/63/-3/0/0.01/000/00 23 MPH ENE [precip. corrected ] 6/19 80/58/69/+6/0.06/.../.. 36 MPH W 6/20 71/51/61/-6/0/.../.. 30 MPH NW 6/21 76/52/64/-3/0/899/98 31 MPH WSW During June to date there has been one daily record established so far for the month... The low maximum temp. of 51 degrees on the 1st edged out the previous low maximum for the date of 52 degrees in 1922 and 1984. * gust not associated with TSTM...but rather a rain/wind squall... DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR JUNE 22 HIGH 93F IN 1921 LOW 43F IN 1940 PRECIP 1.57 INS IN 1900 PEAK GUST 74 MPH NW IN 1988 RECORDS FOR JUNE 23 HIGH 93F IN 1888 LOW 45F IN 1885 PRECIP 0.68 INS IN 1941 PEAK GUST 63 MPH SE IN 1972 (TROPICAL STORM AGNES) TODAY'S REPORT BY: Robert Skilling