BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA ALL TIMES EASTERN DAYLIGHT TIME MONDAY, JULY 25, 2005 Today's discussion at 2 p.m. TODAY'S OBSERVATIONS...... 8 A.M. broken clouds with 25 miles visibility; hazy; temp. 73; dewpoint 62; wind ssw 23 gusting 31 mph; six hourly min. temp. 65 BHO SA 1155 E90 BKN 25 108/73/62/2020G27/985/ HAZY PK WND 1927/51/ 8/070 58014 10074 20065 11 A.M. overcast with 20 miles visibility and hazy; temp. 77; dewpoint 64; wind ssw 25 gusting 36 mph... BHO SA 1455 E40 BKN 120 OVC 20 092/77/64/2022G31/980/ BRGHT SPTS IOVC NE-SE HAZY PK WND 2033/37/ 8/57/ 57016 2 P.M. overcast with breaks; visibility 8 miles in increasing haze; temp. 78; dewpoint 67; wind ssw 20 gusting 27 mph; six hourly max. temp. 80 deg. BHO SA 1755 E22 OVC 8 085/78/67/2117G23/978/ BINOVC OVC V BKN HZY HZ INCRSNG WND 18V24/ 8/5// 56007 10080 20073 WEATHER SUMMARY FOR SUNDAY, JULY 24: TEMPERATURE (DEGREES F) MAX.....81 NORMAL.....82 MAX. 81.4 @ 5:26 p.m. MIN.....60 NORMAL.....63 MIN. 60.1 @ 6:01 a.m. MEAN....71 NORMAL.....72 DEPARTURE FROM 30-YEAR NORMAL.....- 2 TOTAL DEPARTURE FOR THE MONTH.....+ 6 (+0.1 DEGREES/DAY ) PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........24 WNW AT 10:25 A.M. AEROVANE........................... 26 WNW AT 11:42 A.M. ASOS.................................... 23 WNW AT 11:42 A.M. DAVIS....................................25 NW AT 11:03 A.M. FASTEST MILE FOR YESTERDAY........... 16 NW AT 11:02 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE.....18 WNW AT 11:42 A.M. MAXIMUM 1-MINUTE DAVIS AVERAGE.....19 NW AT 11:04 A.M. AVERAGE WIND SPEED AND DIRECTION... 11.1 NW ] ASOS........................................................ 11.6 NW [310 deg ] DAVIS....................................................... 11.1 WNW [300 deg ] PRECIPITATION (INCHES) THROUGH THIS MORNING (EDT) TOTAL PRECIPITATION 24 HRS ENDING 8 A.M....0.00 DEPARTURE....-0.12 ASOS.............. 0.00 TOTAL PRECIPITATION FOR THE MONTH..........2.72 DEPARTURE....-0.18 ASOS..............2.72 TOTAL PRECIPITATION FOR THE YEAR..........33.38 DEPARTURE....+5.11 ASOS.............32.40* *EXCLUDES 3.19 INCHES OF ERRONEOUS PRECIPITATION RECORDED FROM 1/23-1/28. PRELIMINARY CLIMATE SUMMARY FOR JULY 2005......CALENDAR DAY 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 7/1 75/60/68/-2/0.02/110/12 20 SSW 7/2 80/62/71/+1/0/776/85 24 W 7/3 77/59/68/-2/0/885/97 18 ENE 7/4 81/58/70/0/0/701/77 22 SSE 7/5 86/60/73/+2/0/783/86 27 S 7/6 71/57/64/-7/*1.43/000/00 35 NNE Aero 38 MPH NNE 7/7 62*/56/59/-12/T/000/00 30 NE 7/8 59*/53/56/-15/1.02/000/00 39 NNE 7/9 76/54/65/-6/0.09/335/37 35 W TSTM 7/10 86/62/74/+3/0/787/87 ** 32 WNW 7/11 88/66/77/+5/0/822/91 30 NW 7/12 76/60/68/-4/0/849/94 21 NE 7/13 77/59/68/-4/0/649/72 27 S 7/14 84/64/74/+2/0/0/648/72 27 SW 7/15 82/67/75/+3/0/681/76 21 NE 7/16 86/66/76/+4/0/600/67 25 S 7/17 82/67/75/+3/0/0/072/08 27 SSE 7/18 83/72/78/+6/0.15/142/16 23 S 7/19 91/72*/82/+10/0.01/508/57 25 W TSTM 7/20 88/70/79/+7/0/863/97 23 W 7/21 86/68/77/+5/0/.../.. 17 WNW 7/22 91/68/80/+8/T/.../.. 28 NNW TSTM 7/23 82/64/73/+1/0/.../.. 28 WNW 7/24 81/60/71/-2/0/856/98 24 NW 7/25 morning low temp. 65 deg. NEW RECORDS FOR JULY TO DATE.... * 7/6 - NEW RECORD DAILY PRECIP. 1.43 ins.; previous record 1.04 ins. * 7/7 - max. temp. of 62 equaled record low maximum for date set in 1914 * 7/8 - max. temp. of 59 broke record for date; previous 63 in 1919 * 7/19 - min. temp. of 72 tied record high minimum for date set in 1949 and 1991 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR JULY 25 HIGH 94F IN 1963,1987 LOW 51F IN 1901,1953 PRECIP 2.25 INCHES IN 1990 PEAK GUST 88 MPH NW IN 1972 RECORDS FOR JULY 26 HIGH 97F IN 1963 LOW 47F IN 1920 PRE 2.05 INS IN 1899 WIND 74e MPH NNW IN 1940 TODAY'S REPORT BY: Robert Skilling