***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1964 MONTH SEPTEMBER ....... 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 60.0 68.3 65.8 0 090 10.4 14 070 0.0 1 662.4 02 68.9 71.1 69.5 0 070 9.2 12 080 0.0 2 664.8 03 67.8 72.8 70.4 0 060 6.7 14 080 0.0 2 666.0 04 57.8 68.3 64.1 0 360 11.7 18 010 0.0 4 667.4 05 52.8 56.7 54.2 0 360 15.0 20 360 0.0 7 668.0 06 53.9 60.6 57.8 0 020 13.8 16 020 0.0 3 666.7 07 60.8 67.2 64.2 0 110 10.4 16 110 0.0 2 664.2 08 55.6 68.3 66.0 0 110 9.2 16 120 0.0 1 657.4 09 68.9 70.6 69.3 0 120 17.3 24 120 0.0 1 656.1 10 65.6 68.9 66.9 0 120 21.9 31 120 0.0 2 662.3 11 61.1 68.9 65.5 0 110 16.1 22 120 0.0 7 667.9 12 52.8 55.6 54.0 0 030 10.4 13 020 0.0 4 669.6 13 59.4 67.2 63.5 0 110 12.7 16 110 0.0 3 671.7 14 53.9 65.6 59.7 0 330 13.8 18 320 0.0 8 675.7 15 41.1 51.1 45.6 0 320 19.6 21 320 0.0 8 675.1 16 42.2 64.4 53.4 0 330 9.2 18 310 0.0 5 672.4 17 62.8 67.2 63.8 0 090 10.4 14 060 0.0 2 669.7 18 64.4 67.2 65.8 0 070 9.2 13 070 0.0 1 673.1 19 66.7 68.9 66.8 0 100 8.4 16 100 0.0 1 675.1 20 60.6 67.8 63.6 0 050 11.7 14 050 0.0 8 668.0 21 55.6 60.6 56.8 0 360 20.7 27 360 M 6 663.3 22 56.1 58.3 57.2 0 360 20.7 29 360 M 6 672.8 23 56.1 59.4 57.2 0 010 13.8 16 360 M 3 676.0 24 57.8 63.3 60.4 0 060 8.4 14 100 M 1 674.0 25 62.2 68.9 65.9 0 090 10.4 15 100 M 0 666.2 26 63.3 68.9 64.5 0 090 4.6 9 080 M 3 670.1 27 64.4 66.7 65.7 0 090 9.2 14 110 M 2 675.8 28 66.1 70.0 68.1 0 120 12.7 18 150 M 0 674.5 29 66.1 70.0 68.0 0 110 12.7 16 090 M 0 677.3 30 51.7 66.1 58.5 0 070 13.8 17 070 M 0 683.2 AVG 59.2 65.6 62.4 T 110 12.5 31 120 M 3 669.6 10th AVG MONTHLY -62.4 PCPN TRACE NR DAYS CLEAR 16 HIGHEST -41.1 ON 15th SUNSHINE M PARTLY CLOUDY 09 LOWEST -72.8 ON 3rd CLOUDY 05 HIGH PRESSURE 684.4 ON 30th LOW PRESSURE 654.9 ON 9th NET CHANGE IN SNOWSTAKE FIELD: -0.34 inches Sunrise occurred at 2105UTC on day 20. Sunrise based on US Naval Observatory time. 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. Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 59.3 59.2 Avg Wnd Spd Avg Press 669.5 669.6 Min T Max Press 683.2 684.4 Fastest Wnd MPH Avg T Min Press 656.1 654.9 Changes to Daily Data: Max Temp Day 7 From: 62.2 To: 60.8 Min Temp No Daily Changes Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 From: 63.9 70.0 70.0 63.3 55.0 57.2 65.0 62.2 69.4 67.2 65.0 53.9 63.3 59.4 46.1 To: 65.8 69.5 70.4 64.1 54.2 57.8 64.2 66.0 69.3 66.9 65.5 54.0 63.5 59.7 45.6 Day 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 From: 53.3 65.0 66.1 67.8 64.4 57.8 57.2 58.3 60.6 65.6 67.2 65.6 67.8 68.3 58.9 To: 53.4 63.8 65.8 66.8 63.6 56.8 57.2 57.2 60.4 65.9 64.5 65.7 68.1 68.0 58.5 Fast MPH Day 20 From: 13 To: 14 Avg Pressure Day 7 12 13 24 25 From: 672.3 664.2 669.4 672.9 665.3 To: 664.2 669.6 671.7 674.0 666.2 Number of NCDC observations per day: 8