BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY FRIDAY, OCTOBER 14, 2005 ALL TIMES ARE IN EASTERN STANDARD TIME [unless otherwise noted] Today's observations: 7 A.M. EST Weather: Obscured Temperature: 56F, Dew point: 56F, Wind: ENE at 20G29 Sea-level pressure: 30.08 inches Hg, falling Visibility: 1/4 of a mile Precipitation past 24 hours: 0.40 inches BHO SA 1155 W2 X1 1/4L-F 187/56/56/0620G29/008/ 8//// 58006 ASOS 60010 70040 10056 20053 10 A.M. EST Weather: Obscured Temperature: 55F, Dew point: 55F, Wind: NE at 16G22 Sea-level pressure: 30.07 inches Hg, falling Visibility: 1/16 of a mile BHO SA 1455 W2 X1 1/16L-F 183/55/55/0416G22/007/ 8//// 58004 6003/ 1 P.M. EST Weather: Obscured Temperature: 55F, Dew point: 55F, Wind: NE at 20 kt Sea-level pressure: 30.01 inches Hg, falling Visibility: 1/16 of a mile Precipitation past 6 hours: 0.23 inches BHO SA 1755 W2 X1 1/16RF 161/55/55/0420/001/ 8//// 58022 6023/ 10056 20055 WEATHER SUMMARY FOR THURSDAY, OCTOBER 13 TEMPERATURE (DEGREES F) MAX.....54 NORMAL.....61 ASOS.....54 AT 4:39 P.M. MIN.....52 NORMAL.....44 ASOS.....52 AT 8:25 P.M. MEAN....53 NORMAL.....52 DEPARTURE FROM 30-YEAR NORMAL......+1 TOTAL DEPARTURE FOR THE MONTH......+73 (+5.6 DEGREES/DAY) HEATING DEGREE DAYS TOTAL HEATING UNITS FOR YESTERDAY..........12 DEPARTURE.....-1 TOTAL HEATING UNITS FOR THE MONTH..........77 DEPARTURE....-58 TOTAL HEATING UNITS FOR THE SEASON........149 DEPARTURE...-159 TOTAL HEATING UNITS LAST SEASON TO DATE...226 DIFFERENCE...-77 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY.........40 NE AT 3:16 A.M. AEROVANE..........38 NE AT 3:11 A.M. ASOS..............36 NE AT 3:34 A.M. DAVIS.............35 N FASTEST MILE FOR YESTERDAY...........26 NE AT 5:14 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE........24 NE AT 5:28 A.M. AVERAGE WIND SPEED AND DIRECTION...17.1 NE ASOS............17.2 PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.40 DEPARTURE....+0.26 ASOS..............0.40 TOTAL PRECIPITATION FOR THE MONTH..........3.78 DEPARTURE....+1.96 ASOS..............3.76 TOTAL PRECIPITATION FOR THE YEAR..........46.68 DEPARTURE....+7.41 ASOS.............45.43* *EXCLUDES 3.19 INCHES OF ERRONEOUS PRECIPITATION RECORDED FROM 1/23-1/28. PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 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 10/1 70/49/60/+3/0/690/98 21 MPH S 10/2 75/52/64/+8/0/681/97 23 MPH SSW 10/3 73/56/65/+9/0/656/94 15 MPH S 10/4 74/55/65/+9/T/382/55 17 MPH S 10/5 78/56/67/+12/0/471/68 17 MPH S 10/6 77/64/71/+16/T/.../.. 25 MPH S 10/7 78/65/72/+17/.../.../.. 31 MPH S AERO 34 MPH S 10/8 71/49/60/+6/.../000/00 45 MPH S AERO 50 MPH S 10/9 52/47/50/-4/1.33/000/00 50 MPH NNE Aero 48 MPH NNE 10/10 53/50/52/-2/0.19/000 25 MPH NNE 10/11 54/50/52/-1/0.28/000/00 42 MPH NNE Aero 40 MPH NE 10/12 53/49/51/-2/0.22/000/00 47 MPH NE Aero 45 MPH NE 10/13 54/52/53/+1/.../000/00 40 MPH NE 10/14 MORNING LOW 53 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR OCTOBER 14 HIGH 79 IN 2000 LOW 28 IN 1958 PRECIP 2.69 INCHES IN 1990 SNOWFALL 2.0 INCHES IN 1913 PEAK GUST 63e MPH W IN 1976 RECORDS FOR OCTOBER 15 HIGH 83 IN 1897 LOW 29 IN 1887,1937 PRECIP 3.12 INCHES IN 1930 SNOWFALL TRACE IN 1961,1972 PEAK GUST 69 MPH W IN 2003 TODAY'S REPORT BY: Andrew Hoell