BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA ALL TIMES EASTERN DAYLIGHT TIME MONDAY, JULY 11, 2005 Today's discussion at 2 p.m. Temperatures have rebounded to well above normal these past two days including today after being 12 and 15 degrees cooler than normal last Thursday and Friday. However, through yesterday, July was still averaging 4 degrees cooler than normal. The warmest temperatures of the month to date are occurring today with a high of 88 degrees through early this afternoon. TODAY'S OBSERVATIONS...... 8 a.m. high thin broken clouds and visibility 25 miles, hazy; temp. 75; dewpoint 64; wind wnw at 12 mph; six hourly min. temp. 71 degrees... BHO SA 1155 250 -SCT 300 -BKN 25 129/75/64/2910/991/ HAZY/ 8/001 53006 10075 20071 11 a.m. high thin scattered clouds with 25 miles visibility, hazy; temp. 84; dewpoint 64; wind west at 12 mph; wind direction variability is wsw to nw BHO SA 1455 250 -SCT 300 -SCT 25 131/84/64/2710/992/ FEW LWR DENSE CI W HAZY WND 25V32/ 8/001 53002 2 p.m. scattered cumulus and thin broken cirrus clouds; visibility 25 miles; hazy; temp. 85; dewpoint 60; wind nw at 12 gusting 25 mph; a wind direction variability of from west to north; max. temp. past six hour is 88 degrees... BHO SA 1755 60 SCT 220 SCT 250 -SCT 300 -BKN 25 127/85/60/3110G22/991/ FEW MDT CU ALQDS FEW LWR DENSE CI W WND 27V36/ 8/201 56004 10088 20075 WEATHER SUMMARY FOR SUNDAY, JULY 10: TEMPERATURE (DEGREES F) MAX.....86 NORMAL.....81 MIN.....62 NORMAL.....61 MEAN....74 NORMAL.....71 DEPARTURE FROM 30-YEAR NORMAL.....+ 3 TOTAL DEPARTURE FOR THE MONTH.....-38 (-4.0 DEGREE/DAY ) TOTAL HEATING UNITS FOR YESTERDAY.......0 DEP..... 0 TOTAL HEATING UNITS FOR JULY..................16 DEP......+7 FINAL HEATING DEGREE DAY UNITS FOR 2004-2005 SEASON: TOTAL HEATING UNITS FOR THE JUNE........63 DEP....-11 TOTAL HEATING UNITS FOR THE SEASON 2004-2005....6409 DEP....+38 TOTAL HEATING UNITS FOR LAST SEASON...................6291 DIF...+118 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........32 WNW AT 8:42 A.M. AEROVANE........................... 34 WNW AT 7:53 A.M. ASOS.................................... 30 WNW AT 7:53 A.M. DAVIS.....................................30 W AT 7:09 A.M. FASTEST MILE FOR YESTERDAY............22 WNW AT 8:41 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE.....21 WNW AT 5:48 P.M. MAXIMUM 1-MINUTE DAVIS AVERAGE.....25 WNW AT 6:04 P.M. AVERAGE WIND SPEED AND DIRECTION....15.0 WNW ASOS........................................................ 15.2 W [ 270 deg] DAVIS....................................................... 15.0 WNW [ 290 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..........2.56 DEPARTURE....+1.34 ASOS..............2.57 TOTAL PRECIPITATION FOR THE YEAR..........33.32 DEPARTURE....+6.63 ASOS.............32.25* *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/.../.. 18 ENE 7/4 81/58/70/0/0/.../.. 22 SSE 7/5 86/60/73/+2/0/.../.. 27 S 7/6 71/57/64/-7/1.43/000/00 35 NNE 7/7 62*/56/59/-12/N/A/000/00 30 NE 7/8 59*/53/56/-15/N/A/000/00 39 NNE 7/9 76/54/65/-6/0/.../.. 35 W 7/10 86/62/74/+3/0/.../.. 32 WNW 7/11 morning low temp. 71 deg. NEW RECORDS FOR JULY TO DATE.... * 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 62 in 1919 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 19+0 (e = estimated): RECORDS FOR JULY 11 HIGH 98F IN 1911 LOW 49F IN 1890 PRECIP 1.87 INS IN 1959 WIND 53 MPH NW IN 1988 RECORDS FOR JULY 12 HIGH 97F IN 1943 LOW 48F IN 1945 PRECIP 1.43 INS IN 1975 WIND 48e MPH SSW IN 1944 TODAY'S REPORT BY: Robert Skilling