***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1961 MONTH AUGUST ....... 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 35.3 44.4 38.9 0 320 39.0 47 320 0.0 7 675.9 BS 02 34.8 48.3 39.6 T 340 26.4 43 340 0.0 6 680.8 SGBS 03 34.2 47.2 39.6 T 360 35.4 45 340 0.0 7 681.5 SGBS 04 47.2 52.8 50.4 0 360 27.4 32 360 0.0 2 678.5 05 51.4 61.7 56.4 0 360 21.1 31 360 0.0 2 673.0 06 55.3 58.9 56.8 0 020 20.1 25 020 0.0 2 671.6 07 57.7 61.1 59.1 0 050 17.2 22 050 0.0 1 669.8 08 57.5 61.1 58.5 0 050 20.4 29 020 0.0 1 666.1 09 57.7 61.1 59.0 0 050 21.7 29 050 0.0 0 664.6 10 60.6 67.2 63.7 0 050 17.7 23 050 0.0 0 665.4 11 65.0 72.8 68.0 0 050 16.0 21 070 0.0 1 667.7 12 68.6 74.4 71.0 0 090 12.5 16 090 0.0 2 672.1 13 62.5 71.1 68.0 0 090 15.1 20 090 0.0 0 660.8 14 51.4 63.3 58.6 0 360 20.4 29 360 0.0 3 668.1 15 51.8 59.4 55.2 0 360 22.4 28 360 0.0 5 674.2 16 49.7 52.2 50.3 0 360 20.3 25 360 0.0 7 679.5 17 51.4 58.3 54.0 T 360 10.0 18 360 0.0 5 683.9 18 47.0 55.0 49.6 T 360 5.7 15 360 0.0 7 684.1 19 45.9 50.6 47.5 T 360 10.1 17 360 0.0 7 681.6 20 46.4 51.1 48.1 T 360 16.0 22 360 0.0 8 679.3 21 47.7 68.9 59.6 T 110 13.9 20 110 0.0 1 677.9 22 64.2 68.9 65.8 0 090 14.1 21 050 0.0 0 678.7 23 62.5 67.2 65.0 0 110 14.9 21 110 0.0 0 677.0 24 64.7 71.7 67.6 0 090 12.4 16 090 0.0 2 682.2 25 52.8 65.0 56.7 T 050 7.6 12 050 0.0 6 685.0 26 53.6 62.8 58.8 T 020 13.4 21 020 0.0 5 683.5 27 57.2 60.6 58.3 0 360 18.9 23 360 0.0 6 679.8 28 59.5 63.9 61.7 0 090 14.6 17 090 0.0 1 671.7 29 54.4 62.2 58.5 T 020 15.0 22 360 0.0 3 671.7 30 48.9 63.3 54.6 0 360 23.9 30 360 0.0 6 682.7 31 50.6 52.8 50.4 0 360 25.3 30 360 0.0 6 686.9 AVG 53.1 60.6 56.4 T 360 18.4 47 320 0.0 4 676.0 1st AVG MONTHLY -56.4 PCPN TRACE NR DAYS CLEAR 15 HIGHEST -34.2 ON 3rd SUNSHINE 0.0/ 0% PARTLY CLOUDY 10 LOWEST -74.4 ON 12th CLOUDY 06 HIGH PRESSURE 687.8 ON 31st LOW PRESSURE 657.3 ON 13th NET CHANGE IN SNOWSTAKE FIELD: +1.90 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. 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 -35.0 -34.2 Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 53.2 53.1 Avg Wnd Spd Avg Press Min T Max Press Fastest Wnd MPH Avg T 57.0 56.4 Min Press Changes to Daily Data: Max Temp Day 1 2 3 5 6 8 12 13 14 From: 35.6 35.1 35.0 51.7 55.5 57.7 69.0 63.3 52.3 To: 35.3 34.8 34.2 51.4 55.3 57.5 68.6 62.5 51.4 Day 16 17 18 19 20 22 23 24 26 From: 50.0 51.7 47.2 41.0 46.7 64.5 62.8 64.9 53.8 To: 49.7 51.4 47.0 45.9 46.4 64.2 62.5 64.7 53.6 Min Temp No Daily Changes Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 From: 40.0 41.7 41.1 50.0 56.7 57.2 59.4 59.4 59.4 63.9 68.9 71.7 67.2 57.8 55.6 To: 38.9 39.6 39.6 50.4 56.4 56.8 59.1 58.5 59.0 63.7 68.0 71.0 68.0 58.6 55.2 Day 16 17 18 19 20 21 22 24 25 26 27 29 30 31 From: 51.1 55.0 51.1 48.3 48.9 58.3 66.7 68.3 58.9 58.3 58.9 58.3 56.1 51.7 To: 50.3 54.0 49.6 47.5 48.1 59.6 65.8 67.6 56.7 58.8 58.3 58.5 54.6 50.4 Avg Press Day 1 From: 677.1 To: 675.9 Number of NCDC observations per day: 8