BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA ALL TIMES EASTERN DAYLIGHT TIME TUESDAY SEPTEMBER 13, 2005 TODAY'S DISCUSSION....2 P.M. TEMPERATURE REACHED 88 DEGREES ON MONDAY....... 91% OF POSSIBLE SUNSHINE THRU 12 DAYS...MAYBE RECORD? The high temperature reached 88 degrees yesterday afternoon and was our highest reading since 90 degrees on August 14. It was not close to the record, though, which remains at 92 degrees in 1961. Extended period of extremely sunny weather continues; 91% of the possible sunshine through twelve days! We'll be researching this to see when we had this amount of sunshine during almost a two-week period. TODAY'S OBSERVATIONS.... 8 A.M. clear with 8 miles visibility with thin fog and an inversion present estimated top 7 hundred feet over city north; temp. 70; dewpoint 61; wind east at 08 mph; six hourly min. temp. 66 deg. BHO SA 1155 CLR 8 174/70/61/1007/004/ FEW CI NW-N THN F BLO SMT/INVSN ESTMTD TOP 7 HND N OVR CTY VSBY N 15+ ABV INVSN SE-S 5 WND GRDLY VEERING/ 8/001 51011 10073 20066 11 A.M. clear with 12 miles visibility and hazy; temp. 77; dewpoint 65; wind nne 06 mph... BHO SA 1455 CLR 12 184/77/65/0205/007/ HAZY WND L/V/ 51010 2 P.M. clear with 12 miles visibility and hazy; temp. 80; dewpoint 66; wind ene at 09 mph; six hourly max. temp. 80 deg. BHO SA 1755 CLR 12 176/80/66/0708/005/ HAZY/ 58008 10080 20070 WEATHER SUMMARY FOR MONDAY SEPT 12: TEMPERATURE (DEGREES F) MAX......88 NORMAL.....72 HAZEN 87.9 AT 2:48 P.M. MIN......60 NORMAL.....54 HAZEN 60.0 AT 4:57 A.M. MEAN.....74 NORMAL.....63 DEPARTURE FROM 30-YEAR NORMAL.....+ 11 TOTAL DEPARTURE FOR THE MONTH.....+ 36 [2.8 deg. daily ] PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY......... 29 SW AT 3:45 A.M. AEROVANE................................. 31 SW AT 3:45 A.M. ASOS......................................... N/A DAVIS..........................................29 SW AT 3:45 A.M. FASTEST MILE FOR YESTERDAY.................. 23 SSW AT 1:09 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE............ N/A MAXIMUM 1-MINUTE DAVIS AVERAGE............ 23 SSW AT 1:36 A.M. AVERAGE WIND SPEED AND DIRECTION... .... 14.8 W ASOS............................................................. 14.6 W [ 260 deg] DAVIS............................................................. 15.4 W [260 deg. ] N/A = not available due no ASOS connection.... PRECIPITATION (INCHES) THROUGH THIS MORNING (EDT) TOTAL PRECIPITATION 24 HRS ENDING 8 A.M....0.00 DEPARTURE.....-0.14 ASOS.............. 0.00 TOTAL PRECIPITATION FOR SEPT...............0.41 DEPARTURE....-1.20 ASOS..............n/a TOTAL PRECIPITATION FOR THE YEAR..........39.50 DEPARTURE....+4.57 ASOS..............n/a N/A = not available due no ASOS connection... PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER 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 9/1 81/73/73/+6/0.41/773/98 28 WNW 9/2 83/62/73/+7/0/786/100 23 WSW 9/3 78/61/70/+4/0/782/100 25 WNW 9/4 78/60/69/+3/0/725/93 21 NE 9/5 70/57/64/-1/0/770/99 24 NNE 9/6 74/56/65/0/775/100 16 S 9/7 81/57/69/+4/0/742/96 21 S 9/8 83/59/71/+6/0/670/87 20 SSW 9/9 70/60/65/+1/0/276/36 21 NW 9/10 71/53/62/-2/0/756/99 21 NNW 9/11 73/49/61/-3/0/709/93 28 SSW 9/12 88/60/74/+11/0/691/91 29 SW 9/13 morning low temp. 66 deg. DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR SEPTEMBER 13 HIGH 91F IN 1957 LOW 40F IN 1985 PRECIP 3.10 INCHES IN 1987 PEAK GUST 44 MPH WNW IN 1986 RECORDS FOR SEPTEMBER 14 HIGH 90F IN 1931 LOW 34F IN 1911 PRECIP 4.38 INCHES IN 1944 [the Great Atlantic Hurricane of 1944] PEAK GUST 96e MPH E IN 1944 [the Great Atlantic Hurricane of 1944] TODAY'S REPORT BY: Robert Skilling