***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1961 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 55.5 61.1 58.2 0 020 18.2 21 360 M 4 660.9 02 57.7 61.1 59.4 0 020 20.8 25 360 M 6 664.9 03 50.3 57.2 52.9 0 020 24.2 28 360 M 8 665.4 04 49.5 51.7 50.3 0 360 27.3 30 360 M 8 671.7 05 48.9 51.1 49.7 0 020 23.6 28 020 M 7 671.9 06 40.9 51.7 46.0 0 050 22.2 28 050 M 6 667.9 07 43.6 49.4 45.7 0 360 23.3 28 020 M 6 676.5 BS 08 44.6 49.4 47.1 0 020 26.2 28 020 M 6 677.7 09 46.4 51.1 48.5 0 050 21.7 25 020 M 7 677.3 10 50.3 55.6 51.5 0 020 18.3 25 020 M 3 678.1 11 52.2 54.4 53.0 T 020 16.2 20 020 M 6 682.0 12 52.2 55.6 53.3 T 050 15.4 20 020 M 2 680.6 13 52.5 55.6 53.5 0 050 14.3 18 050 M 5 677.1 14 55.3 57.8 56.2 0 090 12.7 16 090 M 1 671.5 15 55.6 60.0 57.9 0 090 14.1 18 090 M 0 666.4 16 53.1 60.6 56.6 0 020 11.3 15 360 M 2 668.1 17 53.1 55.6 54.4 T 050 13.5 16 020 M 5 671.2 18 52.0 55.0 52.9 T 020 16.0 21 020 M 8 677.3 19 47.5 52.2 49.0 0 020 18.5 22 020 M 8 679.3 20 45.3 52.8 48.8 0 020 15.1 20 020 M 6 680.8 21 49.2 53.9 50.3 0 050 16.2 20 050 M 0 676.7 22 52.0 55.0 53.4 0 050 13.5 21 020 M 2 678.4 23 44.2 52.8 48.3 0 020 19.1 23 020 M 7 680.1 24 38.6 45.0 41.0 0 020 23.7 28 020 M 8 679.0 25 41.2 44.4 43.1 0 360 17.5 23 360 M 6 679.6 26 44.0 47.2 46.0 0 020 19.2 25 020 M 5 676.9 27 34.4 45.6 38.3 0 360 24.1 30 020 M 7 675.9 BS 28 33.1 37.8 35.2 T 360 15.0 23 360 M 8 685.2 BS 29 33.6 42.2 39.8 T 050 14.7 20 360 M 6 682.8 30 33.1 41.1 34.1 T 360 15.9 21 360 M 7 684.6 31 29.8 36.7 33.1 T 360 16.8 24 020 M 7 686.7 BS AVG 46.4 51.6 48.6 T 020 18.3 30 020 M 5 675.9 4th,27th AVG MONTHLY -48.6 PCPN TRACE NR DAYS CLEAR 06 HIGHEST -29.8 ON 31st SUNSHINE M PARTLY CLOUDY 13 LOWEST -61.1 ON 1st,2nd CLOUDY 12 HIGH PRESSURE 688.6 ON 31st LOW PRESSURE 658.5 ON 1st NET CHANGE IN SNOWSTAKE FIELD: +1.70 inches Insufficient Data available for Sunshine Hours Computation. 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. All wind and pressure data taken from original LCD unless otherwise indicated. Prevailing and peak wind direction converted from cardinal direction to degrees. Changed Extremes: From To Max T -26.7 -29.8 Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 46.8 46.4 Avg Wnd Spd 18.6 18.3 Avg Press Min T Max Press Fastest Wnd MPH Avg T 49.2 48.6 Min Press Changes to Daily Data: Max Temp Day 3 6 7 9 10 13 14 16 17 18 From: 50.6 41.7 44.0 46.7 51.0 53.2 55.6 53.8 53.2 52.8 To: 50.3 40.9 43.6 46.4 50.3 52.5 55.3 53.1 53.1 52.0 Day 19 20 21 22 23 24 28 30 31 From: 47.8 46.0 49.5 52.8 45.0 39.4 33.4 33.5 29.9 To: 47.5 45.3 49.2 52.0 44.2 38.6 33.1 33.1 29.8 Min Temp No Daily Changes Avg Temp Day 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 58.3 53.9 50.6 50.0 46.7 46.7 47.8 48.9 53.3 53.3 53.9 54.4 56.7 57.8 57.2 To: 58.2 52.9 50.3 49.7 46.0 45.7 47.1 48.5 51.5 53.0 53.3 53.5 56.2 57.9 56.6 Day 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 53.9 50.0 49.4 51.7 53.9 48.9 42.2 42.8 45.6 40.0 35.6 38.9 37.2 33.3 To: 52.9 49.0 48.8 50.3 53.4 48.3 41.0 43.1 46.0 38.3 35.2 39.8 34.1 33.1 Number of NCDC observations per day: 8