BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SUNDAY, OCTOBER 31, 2004 ALL TIMES ARE IN EASTERN STANDARD TIME Today's observations: 7 A.M. Weather: Clear with fog Temperature: 58F, Dewpoint: 58F, Wind: S at 15 kt, Sea-level pressure: 29.64 rising Visibility: 1 mile with fog BHO SA 1155 CLR 1F 036/58/58/1915/964/ STRA DFTG OVR SMT SUN DMLY VSBL/ 8/400 53001 MANUAL 70006 ASOS 70009 10058 2057 10 A.M. Weather: Overcast Temperature: 63F, Dew Point: 57F, Wind: WSW at 12 kt, Visibility: 10 miles BHO SA 1155 25 OVC 10 040/63/57/2512/965/ BRGT SPTS IOVC WND VEERING/ 8/500 50004 1 P.M. Weather: Scattered stratocumulus Temperature: 67F, Dew Point: 44F, Wind: W at 20 kt Visibility: 60 miles BHO SA 1755 40 SCT 60 031/67/44/2720G28/962/ PK WND 2728/1745/ 8/500 58009 10067 20058 WEATHER SUMMARY FOR SATURDAY, OCTOBER 30: TEMPERATURE (DEGREES F) MAX.....58 NORMAL.....55 ASOS.....58 AT 11:59 P.M. MIN.....45 NORMAL.....39 ASOS.....40 AT 3:43 A.M. MEAN....52 NORMAL.....47 DEPARTURE FROM 30-YEAR NORMAL......+7 TOTAL DEPARTURE FOR THE MONTH..... -5 (-0.2 DEGREES/DAY) PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........35 S AT 8:47 P.M. AEROVANE.........37 S AT 8:46 P.M. ASOS.............35 S AT 8:50 P.M. FASTEST MILE FOR YESTERDAY..........26 S AT 8:50 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......26 S AT 11:51 P.M. AVERAGE WIND SPEED AND DIRECTION..14.1 S ASOS...........15.2 PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.06 DEPARTURE....-0.09 ASOS..............0.09 TOTAL PRECIPITATION FOR THE MONTH..........2.55 DEPARTURE....-1.72 ASOS..............2.56* TOTAL PRECIPITATION FOR THE YEAR..........44.81 DEPARTURE....+3.02 ASOS.............43.16* *New ASOS weighing gage installed 6/24/04 replaced former tipping gage. PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 2004......CALENDAR DAY DATA DATA REPORTED: DATE MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST AERO: Aerovane recording wind system when significant TSTM: Thunderstorm day ....: Data not yet available 10/1 68/51/60/+3/0/591/84 16 MPH ESE 10/2 68/52/60/+4/0.01/056/08 22 MPH S 10/3 59/46/53/-3/0/621/89 27 MPH NNW 10/4 68/46/57/+1/0/626/90 23 MPH W 10/5 55/40/48/-7/0/665/96 32 MPH NW Aero 35 MPH NW 10/6 61/37/49/-6/0/669/97 23 MPH SSW 10/7 71/46/59/+4/0/653/95 17 MPH WSW 10/8 74/54/64/+10/0/650/95 23 MPH S 10/9 71/56/64/+10/0/143/21 28 MPH S 10/10 66/48/57/+3/T/251/37 27 MPH NW 10/11 62/45/54/+1/0/412/61 30 MPH WNW Aero 35 MPH WNW 10/12 59/45/52/-1/0.06/155/23 35 MPH WNW Aero 39 MPH WNW 10/13 69/41/55/+3/0/637/95 22 MPH WSW 10/14 57/46/52/0/0.08/040/06 28 MPH NNE 10/15 59/54/57/+5/0.93/000/00 23 MPH N 10/16 62/47/55/+4/0.30/450/68 39 MPH SW Aero 42 MPH SW Davis 41 MPH SSW 10/17 55/41/48/-3/0/495/75 32 MPH SSW Aero 36 MPH SW 10/18 56/39/48/-3/0/498/78 29 MPH W 10/19 47/43/45/-6/0.69/000/00 29 MPH NE 10/20 50/43/47/-3/0/195/30 31 MPH NNE 10/21 48/40/44/-6/T/000/00 35 MPH NE Aero 35 MPH NE 10/22 47/41/44/-6/0.12/000/00 35 MPH NNE Aero 37 MPH NNE 10/24 48/43/46/-3/0.24/000/00 31 MPH NNE 10/25 50/41/46/-3/0.04/000/00 17 MPH NNW 10/26 53/37/45/-3/0/.../.. 18 MPH N 10/27 57/40/49/+1/0/.../.. 23 MPH NNW 10/28 50/36/43/-5/0/.../.. 24 MPH NNW Aero 28 MPH NNW 10/29 57/40/49/2/0/.../.. 21 MPH SSW 10/30 58/45/52/5/0.08/.../.. 35 MPH S DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR OCTOBER 31 HIGH 79F IN 1946 LOW 22F IN 1904 PRECIP 3.74 INCHES IN 1991 SNOWFALL TRACE IN 1906 PEAK GUST 70e MPH S IN 1945 RECORDS FOR NOVEMBER 1 HIGH 75F IN 2003 LOW 22F IN 1913,1923 PRECIP 2.93 INCHES IN 1895 SNOWFALL TRACE IN 1906,1951 PEAK GUST 78 MPH ESE IN 1997 TODAY'S REPORT BY: Andrew Hoell