BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SUNDAY, OCTOBER 2, 2005 ALL TIMES ARE IN EASTERN STANDARD TIME [unless otherwise noted] September 2005 Summary Max temp...74.6 (+3.6) deg F Min temp...57.8 (+4.6) deg F Mean temp..66.2 (+4.1) deg F ...average corrected to 24-hours...65.5 (+4.1) Highest temp...88 (12th) Lowest temp...42 (30th) Precipitation...3.81 (-0.32) inches HDD...53 (-85) CDD...98 (+49) Mean wind...11.8 mph S Peak gust...62 mph S (29th) WARMEST SEPTEMBERS... 66.1 1961 65.5 2005* 65.4 1999 65.3 1930 65.0 2002 WARMEST AUGUST-SEPTEMBER COMBINED... 68.9 2005* 68.6 2002 67.8 1959 67.6 1961 67.5 1971, 2001 Today's observations: 7 A.M. EST Weather: Scattered cirrus Temperature: 55F, Dew point: 49F, Wind: W at 9 kt Sea-level pressure: 30.37 inches Hg, rising Visibility: 40 miles BHO SA 1155 200 SCT 40 284/55/49/2809/037/ THN K LYR ALNG HRZN ALQDS GF OWD SW HAZY/ 8/001 53012 10055 20052 10 A.M. EST Weather: Thin scattered cirrus Temperature: 67F, Dew point: 49F, Wind: NW at 5 kt Sea-level pressure: 30.40 inches Hg, rising Visibility: 40 miles BHO SA 1155 250 -SCT 40 294/67/49/3205/040/ THN K LYR ALNG HRZN S-N HAZY WND LGT/ 8/001 51010 WEATHER SUMMARY FOR SATURDAY, OCTOBER 1 TEMPERATURE (DEGREES F) MAX.....70 NORMAL.....66 ASOS.....69 AT 2:56 PM MIN.....49 NORMAL.....48 ASOS.....49 AT 5:58 AM MEAN....60 NORMAL.....57 DEPARTURE FROM 30-YEAR NORMAL.......+3 TOTAL DEPARTURE FOR THE MONTH.......+3 (+3 DEGREES/DAY) PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY.........21 S AT 7:38 P.M. AEROVANE..........23 S AT 7:35 P.M. ASOS..............18 SSW AT 11:56 P.M. DAVIS.............22 S FASTEST MILE FOR YESTERDAY...........16 SW AT 11:52 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE........16 SSW AT 11:55 P.M. AVERAGE WIND SPEED AND DIRECTION...10.0 S ASOS............10.5 *LAST OF SEVERAL OCCURRENCES PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00 DEPARTURE....-0.14 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........0.00 DEPARTURE....-0.14 ASOS..............0.00 TOTAL PRECIPITATION FOR THE YEAR..........42.90 DEPARTURE....+5.31 ASOS.............41.67* *EXCLUDES 3.19 INCHES OF ERRONEOUS PRECIPITATION RECORDED FROM 1/23-1/28. 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 81/66/74/+11/0/688/91 23 SSE 9/14 85/65/75/+12/0/550/73 27 S 9/15 72/66/69/+7/2.43/0/0 23 WNW 9/16 68/62/65/+3/0.13/0/0 24 NNE 9/17 67/61/64/+2/0.06/0/0 23 ENE 9/18 74/60/67/+6/0/186/25 17 W 9/19 79/57/68/+7/0/680/92 17 W 9/20 73/62/68/+7/0.05/15/2 35 W 9/21 77/58/68/+8/0/711/97 28 W 9/22 82/62/72/+12/0/708/97 35 SSW 9/23 78/56/67/+7/T/145/20 30 S 9/24 63/49/56/-3/0/667/92 23 N 9/25 65/50/58/-1/0/296/41 29 S 9/26 72/61/67/+8/0.38/007/01 39 S Aero 45 MPH S 9/27 69/52/61/+3/T/695/97 35 NW Aero 40 MPH NW 9/28 70/50/60/+2/0/.../.. 28 SSE 9/29 73/46/60/+2/0.35/.../.. 62 S Aero 72 MPH S 9/30 60/42/51/-6/0/.../.. 18 W 10/1 70/49/60/+3/0/.../.. 21 S DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR OCTOBER 2 HIGH 85F IN 1968 LOW 29F IN 1899 PRECIP 1.75 INCHES IN 1984 PEAK GUST 52e MPH S IN 1952, 52 NNW IN 1984 TODAY'S REPORT BY: Andrew Hoell