BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SATURDAY, OCTOBER 23, 2004 ALL TIMES ARE IN EASTERN STANDARD TIME [unless otherwise noted] LOW CLOUDS AND MODERATE WINDS OCCURRING TODAY... TRACE OF PRECIPITATION IN LIGHT SHOWERS THIS MORNING... Except for a brief break in the clouds around 9 AM EDT today that showed the sun for about a minute, there has been no sunshine recorded here since Wednesday morning. Showers on Friday brought 0.12 inch of rainfall, and additional very light showers between 8 and 9 AM this morning brought a trace today. The temperature has averaged below normal all week, and the total monthly temperature departure for October has dropped to just +4. The wind has been gusty today as it has veered from NNW to NE since midnight, with a peak of 38 mph NE occurring at 11:55 AM EDT. Today's observations: 8 A.M. EDT Weather: Light rain shower, overcast with stratocumulus Temperature: 41F, Dewpoint: 38F, Wind: NNW 13 mph, Sea-level pressure: 30.24 inches, steady BHO SA 1155 15 SCT E25 BKN 35 OVC 35RW- 240/41/38/3511/024/ RB55 HIR CLDS VSB NW VSBY WNW-NW 40 NNE-E 30 PCPN VRY LGT/ 8/5// 50000 6000/ 70011 10041 20040 11 A.M. EDT Weather: Overcast with stratocumulus Temperature: 47F, Dew Point: 41F, Wind: NE 18G31 mph Visibility: 35 miles BHO SA 1455 25 BKN 35 OVC 35 230/47/41/0416G27/021/ PK WND 0331/25 WND 36V09/ 8/5// 58010 6000/ 2 P.M. EDT Weather: Overcast with stratocumulus Temperature: 46F, Dew Point: 40F, Wind: NNE 16G31 mph Visibility: 35 miles BHO SA 1755 E20 BKN 35 OVC 35 223/46/40/0314G27/019/ PK WND 0328/43 WND 35V08/ 8/5// 58007 6000/ WEATHER SUMMARY FOR FRIDAY, OCTOBER 22: TEMPERATURE (DEGREES F) MAX.....47 NORMAL.....58 ASOS.....47 AT 10:21 A.M. MIN.....41 NORMAL.....41 ASOS.....41 AT MIDNIGHT P.M. MEAN....44 NORMAL.....50 DEPARTURE FROM 30-YEAR NORMAL......-6 TOTAL DEPARTURE FOR THE MONTH......+4 (+0.0 DEGREES/DAY) PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........35 NNE AT 1:42 P.M. AEROVANE.........37 NNE AT 12:31 P.M. ASOS.............31 NE AT 3:02 P.M. DAVIS............38 NE AT 12:31 P.M. FASTEST MILE FOR YESTERDAY..........24 NNE AT 1:42 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......23 NNE AT 1:42 P.M. AVERAGE WIND SPEED AND DIRECTION..14.0 NNE ASOS...........13.8 PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.11 DEPARTURE....-0.03 ASOS..............0.12 TOTAL PRECIPITATION FOR THE MONTH..........2.19 DEPARTURE....-0.89 ASOS..............2.18* TOTAL PRECIPITATION FOR THE YEAR..........44.45 DEPARTURE....+3.77 ASOS.............42.78* *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 10/23 ...overnight low 40...trace precip DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR OCTOBER 23 HIGH 82 IN 1947 LOW 24 IN 1969 PRECIP 2.18 INCHES IN 1956 SNOWFALL 3.0 INCHES IN 1891 PEAK GUST 78e MPH NW IN 1941 RECORDS FOR OCTOBER 24 HIGH 79 IN 1963 LOW 22 IN 1969 PRECIP 2.96 INCHES IN 1890 SNOWFALL 1.8 INCHES IN 1960 PEAK GUST 70 MPH SE IN 1959 TODAY'S REPORT BY: Mike Iacono