***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1965 MONTH OCTOBER ....... ALL TEMPERATURES MINUS C .............. DAY TEMPERATURE C. PCPN AVG WND FASTEST SUN SKY STN WX MAX MIN AVG SPEED MILE SHINE COVER PRESS DIR MPH SPD DIR HRS 01 59.4 67.2 63.1 0 040 13.0 22 030 4.3 2 678.6 02 58.9 67.2 63.8 0 360 15.4 27 010 2.0 4 687.4 BS 03 52.2 58.9 55.0 0 350 17.0 24 350 0.0 8 693.1 IF,BS 04 50.3 59.4 53.7 0 360 13.1 18 350 7.7 6 677.0 05 59.4 66.7 65.5 0 110 11.9 18 110 24.0 0 667.9 IF 06 57.2 65.6 61.2 0 060 12.4 20 110 16.0 2 668.7 IF 07 56.7 60.6 58.6 0 060 12.4 18 080 22.5 1 668.1 IF 08 56.1 59.4 57.7 0 110 12.5 18 060 23.4 0 668.0 IF 09 57.2 62.2 59.4 0 110 11.6 16 090 22.2 2 666.8 IF 10 59.4 63.3 61.0 0 100 11.0 15 110 20.7 2 671.7 11 44.8 61.7 51.2 T 350 8.2 21 360 0.0 8 675.2 IF 12 40.9 46.1 43.4 T 350 14.3 23 340 0.2 8 673.1 IF 13 45.0 48.9 47.0 T 360 15.3 21 360 4.4 8 674.4 IF 14 48.9 52.2 50.7 0 030 17.2 29 020 24.0 3 675.6 IF,BS 15 50.0 52.2 51.2 0 010 19.7 28 010 18.7 2 680.0 BS 16 47.2 51.1 48.7 0 010 20.1 28 010 6.6 6 682.0 BS 17 47.8 50.0 48.9 0 030 15.9 23 010 23.8 1 681.5 IF,BS 18 50.3 52.2 51.0 0 030 13.3 17 050 24.0 0 681.4 19 51.7 53.9 53.0 0 050 10.1 17 040 24.0 4 685.1 20 44.4 52.2 48.6 0 030 15.7 24 010 18.9 6 689.5 IF,BS 21 33.7 46.7 38.8 T 010 15.8 23 360 2.8 8 691.3 IF,BS 22 34.4 50.0 45.7 T 080 10.2 14 010 19.9 1 692.9 23 48.6 51.1 49.8 0 090 9.9 14 070 24.0 1 692.3 24 49.4 52.2 50.4 0 060 11.6 18 050 24.0 1 690.2 25 47.8 51.7 49.6 0 060 12.9 18 040 24.0 0 686.9 26 47.0 48.9 47.5 0 050 15.4 23 040 24.0 0 684.7 IF,BS 27 43.9 47.2 45.6 0 030 15.5 23 030 24.0 0 684.4 IF,BS 28 46.7 52.2 49.8 0 090 10.3 17 060 24.0 0 679.3 29 52.2 53.9 52.9 0 050 9.1 14 050 24.0 0 675.4 30 53.3 53.9 53.7 0 050 8.2 13 050 24.0 0 674.2 31 53.3 54.4 53.8 0 080 7.6 12 090 24.0 0 673.4 AVG 49.9 55.3 52.6 T 030 13.1 29 020 17.0 3 679.7 14th AVG MONTHLY -52.6 PCPN TRACE NR DAYS CLEAR 20 HIGHEST -33.7 ON 21st SUNSHINE 527.0/ 71% PARTLY CLOUDY 06 LOWEST -67.2 ON 1st,2nd CLOUDY 05 HIGH PRESSURE 695.2 ON 3rd LOW PRESSURE 666.4 ON 9th NET CHANGE IN SNOWSTAKE FIELD: +0.75 inches The following data was changed from the old LCD: All Average Temps recalculated for 24hrs instead of Max+Min/2. Individual Data changed to reflect extremes from LCD and NCDC Data. All Sky Cover changed to Octas. Station Pressure converted from inches of Hg to millibars. Prevailing wind direction taken from NCDC data. No data on original LCD. All wind and pressure data taken from original LCD unless otherwise indicated. Changed Extremes: From To Max T -33.9 -33.7 Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 50.0 49.9 Avg Wnd Spd 13.2 13.1 Avg Press Min T 55.2 55.3 Max Press 695.1 695.2 Fastest Wnd MPH Avg T Min Press 666.3 666.4 Changes to Daily Data: Max Temp Day 4 11 12 18 21 23 26 From: 50.6 45.0 41.1 50.6 33.9 48.9 47.2 To: 50.3 44.8 40.9 50.3 33.7 48.6 47.0 Min Temp Day 12 From: 45.0 To: 46.1 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 From: 63.3 63.3 55.6 55.0 63.3 61.7 58.9 57.8 60.0 61.7 53.3 43.3 47.2 50.6 51.1 To: 63.1 63.8 55.0 53.7 65.5 61.2 58.6 57.7 59.4 61.0 51.2 43.4 47.0 50.7 51.2 Day 16 18 19 20 21 22 23 24 25 26 28 29 30 31 From: 49.4 51.7 52.8 48.3 40.6 42.2 50.0 51.1 50.0 48.3 49.4 53.3 53.9 53.9 To: 48.7 51.0 53.0 48.6 38.8 45.7 49.8 50.4 49.6 47.5 49.8 52.9 53.7 53.8 Avg MPH Day 24 From: 12.8 To: 11.6 Number of NCDC observations per day: 8