BLUE HILL METEOROLOGICAL OBSERVATORY, MILTON, MASSACHUSETTS 02186 ELEVATION 635 FT. ABOVE MSL....10 MILES SSW OF BOSTON, MA THURSDAY NOVEMBER 01 2001 PLEASE VISIT OUR WEB SITE AT: http://www.bluehill.org/ NEXT MEETING OF THE BLUE HILL OBSERVATORY... A joint meeting with the Greater Boston Chapter of the AMS has been scheduled for Thursday, November 1 at 7:00 PM to be held at the Trailside Museum, Milton, MA. Our speaker will be Josh Nichols. The topic of his talk will be "An Intercomparison of A.S.O.S. and Standard Manual Observations at Blue Hill Observatory." PLEASE NOTE: All times are now in Eastern Standard Time unless otherwise noted! DAILY DISCUSSION.....10/31/2001 OCTOBER 2001 - SUNNIEST OCTOBER IN 27 YEARS..... Not since October 1974 have we seen 67% of the possible bright sunshine for this month. That month we recorded 69% sunshine. The long term average for October is 55%. OCTOBER 2001 -- 6TH DRIEST OCTOBER ON RECORD Here is the list of driest Octobers: 1. 0.22 in 1924 2. 0.39 in 1994 3. 0.50 in 1946 4. 0.61 in 1935 5. 0.63 in 1897 6. 0.74 in 2001 (month not complete yet) ** 7. 1.15 in 1918 ** ASOS reports 0.77 inch due to condensate drip OCTOBER TEMPERATURES..... October, 2001 ranks tied for 12th warmest at 53.9 degrees with October, 1927. The 53.9 mean is +3.1 above the 1885-2000 record mean for the month. The warmest October was 58.4 in 1947. Here's the list: Warmest (these are all temps. corrected to 24 hours) Year OCT 1947 58.4 1971 56.6 1963 56.5 1946 55.7 1995 55.5 1990 55.3 1954 55.2 1949 55.0 1931 55.0 1968 54.9 1908 54.2 2001 53.9 1927 53.9 1961 53.8 1975 53.7 1900 53.7 The average maximum temperature of 63.7 ranks as 13th warmest on record. The warmest average max temp for October is 70.1 in 1947. The average minimum temperature of 45.5 ranks as tied for 23rd warmest on record with October, 1991. The warmest average min temp is 49.2 in 1971. TODAY'S OBSERVATIONS.... 11/1/2001 THU BHO SA 1155 E90 BKN 150 BKN 200 OVC 10 284/52/51/2011/037/ THN F BLO SHLW INVSN ALQDS ESTMTD TOP 3 HND OVR CTY N/ 8/077/ 51007 6010/ 70018 10052 20049 BHO SA 1455 300 -SCT 12 281/58/52/2012/036/ LWR CI N-E HAZY/ 8/001/ 58003 BHO SA 1755 E250 OVC 20 258/66/47/1915/029/ FEW AC NE OVC PTLY THN SOLAR HALO HAZY/ 8/047/ 58023 10066 20052 DATA RECORDED FOR WEDNESDAY OCTOBER 31 .... TEMPERATURES.... MAX : 49 MIN: 31 // ASOS MAX: 49 ASOS MIN: 31 NORMAL HIGH AND LOW: 56/39 MEAN 40 [ - 7] TOTAL DEP FOR MONTH TO DATE: +91 degrees Oct. is averaged 2.7 degrees WARMER than normal..... PRECIPITATION....ON 11/01 AS OF 7 A.M. 24 HRS ENDING 7 A.M. ... 0.18 IN. ASOS......................0.17 IN. OCT. TOTAL................0.79 IN. DEP. FROM NORMAL: - 3.15 IN. OCT. SNOWFALL: Trace YEAR 2001 TO DATE: 41.00 {+ 1.64 INS. ][includes 0.18 on 11/1 ] WIND DATA....FOR 10/31 PEAK GUST ASOS: 24 MPH S AT 8:15 P.M. PEAK GUST: 24 MPH S AT 8:15 P.M. PEAK GUST AERO: 25 MPH S AT 9:55 P.M. DAILY OCT. 2001 DATA....AT BLUE HILL... max/min/mean/dep/precip/snowfall/sun mins/%/pk gust/TSTM = thunderstorm day (Aero = the aerovane wind system ) 10/1 55/49/51/-5/T/000/00/ 29 N 10/2 73/50/62/+5/0/639/91/ 24 W 10/3 78/55/67/+11/0/643/92/ 30 SSW (Aero 32 SSW) 10/4 80/60/70/+14/0/639/92/ 38 WSW (Aero 38 WSW ) 10/5 79/59/69/+13/0/637/92/ 35 SSW 10/6 69/45/57/+2/0.05/214/31/ 55 W (Aero 55 MPH W ) 10/7 54/36/45/-10/0/673/98/ 44 W (Aero 44 MPH W ) 10/8 51/32/42/-12/T/T/636/93/ 39 WNW (Aero 40 MPH WNW) 10/9 59/34/47/-7/0/0/614/90/ 24 SW 10/10 70/45/58/+4/0/0/631/93/ 24 SSW (Aero 26 MPH SSW) 10/11 75/50/63/+10/0/0/608/90/ 27 SSW (Aero 28 MPH SSW) 10/12 76/54/65/+12/0/0/532/79/ 18 SSW 10/13 57/50/54/+1/0.02/0/000/00/ 20 NE 10/14 54/51/53/+1/0.09/0/000/00/ 22 NE 10/15 66/52/59/+7/0.07/0//386/58/ 37 WNW 10/16 67/49/58/+6/0.51/0/556/84/ 31 SSE 10/17 57/45/52/-1/T/0/317/48/ 51 W (Aero 51 MPH W ) 10/18 57/39/48/-3/0/0/649/99/ 38 WSW (Aero 38 MPH WSW ) 10/19 62/36/49/-2/0/0/549/84/ 30 SW 10/20 67/48/58/+7/0/0/462/71/ 27 SSW 10/21 72/49/61/+11/0/0/591/91/ 43 SSW (Aero 45 MPH SSW ) 10/22 68/53/61/+11/T/0/342/53/ 29 SW 10/23 62/47/55/+ 5/0/0/051/08/ 35 SSE 10/24 77/61/69/+20/0/0/378/59/ 22 SSW (Aero 25 MPH SSW) 10/25 75/54/65/+16/T/0/198/31/ 39 W (Aero 38 MPH W ) 10/26 58/40/49/0/0/0/476/75/ 33 WSW (Aero 34 MPH WSW) 10/27 52/36/44/-4/0/0/392/62/ 29 W (Aero 28 MPH W ) 10/28 48/34/41/-7/0/0/554/88/ 27 NNW (Aero 27 MPH NNW ) 10/29 56/32/44/-4/0/0/602/96/ 22 NW (Aero 23 MPH NW ) 10/30 53/35/44/-3/0/0/625/100/ 33 NNW (Aero 34 MPH NNW ) 10/31 49/31/40/-7/.05/0/255/41/ 24 S (Aero 25 MPH S ) 11/1 morning low temp. 48; max. thru 1 p.m. 66 deg. RECORDS FOR NOVEMBER 01 HIGH 74 IN 1956,1971,1974,1982 LOW 22 IN 1913,1923 PRECIP 2.93 INS 1895 SNOWFALL: TRACE IN 1906,1951 PEAK GUST 78 MPH ESE IN 1997 RECORDS FOR NOVEMBER 02 HIGH 81 IN 1950 LOW 22 IN 1965 PRECIP 1.67 INS 1970 SNOWFALL: 0.2 IN. IN 1906,1951 PEAK GUST 63 MPH WSW IN 1973 e = estimated Robert Skilling