BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY THURSDAY OCTOBER 21, 2004 TODAY'S DISCUSSION...2 p.m. Low clouds have prevailed all day today with no sunshine recorded thru early afternoon. Temperatures have struggled to the upper 40's after a morning low of 40 degrees. The northeast wind is a bit gusty at times. TODAY'S OBSERVATIONS... 8 a.m. overcast with 30 miles visibiity and 42 degrees; dewpoint 38; wind nne 14 gusting to 18 mph; six hourly min. temp. 40 deg... breaks in overcast sw-nw BHO SA 1155 E110 OVC 30 222/42/38/0212G16/019/ SC AND FEW LWR SC N-E-S HIER CLDS VSB ALQDS BINOVC SW-NW WND 35V05/ 8/571 50002 10046 20040 11 a.m. overcast with very light drizzle and 35 miles visibility; temp. 44; dewpoint 42; wind north at 10 mph.... a trace of precipitation past 3 hours... BHO SA 1455 E12 OVC 30L- 233/44/42/3609/022/ CIG RGD VSBY WNW 45 LB53 PCPN VRY LGT/ 8/5// 51010 6000/ 2 p.m. overcast with low clouds and 45 miles visibility; temp. 48; dewpoint 37; wind nne at 16 gusting 23 mph ( gust to 29 mph past hour) six hourly max. temp. 48 deg. and six hourly precipitation a trace BHO SA 1755 22 SCT E30 OVC 45 233/48/37/0314G20/022/ BRGHT SPTS IOVC OCNL SML BINOVC WND 35V07/ 8/5// 55000 10048 20042 ALL TIMES EASTERN DAYLIGHT TIME.. WEATHER SUMMARY FOR WEDNESDAY OCTOBER 20: TEMPERATURE (DEGREES F) MAX.... 50 NORMAL.....59 HAZEN SHELTER 50.0 MIN.....43 NORMAL.....42 HAZEN SHELTER 43.2 MEAN....47 NORMAL.....50 DEPARTURE FROM 30-YEAR NORMAL.....- 3 TOTAL DEPARTURE FOR THE MONTH.....+16 (+0.6 DEGREES/DAY) PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........31 NNE AT 11:57 A.M. AEROVANE.........35 NNE ASOS.............32 NE AT 9:59 A.M. DAVIS............31 ENE AT 7:53 A.M. FASTEST MILE FOR YESTERDAY..........23 NNE AT 10:22 A.M. HIGHEST ASOS 2 MIN AV...24 NE AT 10:24 A.M. HIGHEST DAVIS 1 MIN AV...25 ENE AT 9:58 A.M. AVERAGE WIND SPEED AND DIRECTION.. 14.4 NE ASOS........... 14.5 NE / 040 deg. DAVIS.......... 14.3 NE / 050 deg. PRECIPITATION (INCHES) TOTAL PRECIPITATION 24 HRS ENDING 8 A.M....0.00 DEPARTURE....-.14 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........2.07 DEPARTURE....-0.73 ASOS..............2.06 TOTAL PRECIPITATION FOR THE YEAR..........44.33 DEPARTURE....+3.93 ASOS.............42.66 PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 2004......CALENDAR DAY DATA DATA REPORTED: 24 HOUR PERIODS ENDING MIDNIGHT EST DATE MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST ... SUNSHINE DATA NOT YET AVAILABLE * * sunshine data updated thru 10/15.... 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/.../.. 31 MPH NNE 10/21 morning low temp. 40 deg; OUR DAILY EXTREMES.... There are no new daily records for October thru 10/20. Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR OCTOBER 21 HIGH 79 IN 1979 LOW 24 IN 1974 PRECIP 2.39 INCHES IN 1944 SNOWFALL TRACE IN 1895,1907,1940 PEAK GUST 69e MPH S IN 1976 RECORDS FOR OCTOBER 22 HIGH 85 IN 1979 LOW 22 IN 1940 PRECIP 1.37 INCHES IN 1898 SNOWFALL TRACE IN 1969 PEAK GUST 67 MPH ESE IN 1988 Today's report: Robert Skilling