***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1961 MONTH JULY ....... 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 54.2 58.9 56.1 0 020 22.8 29 020 0.0 4 677.4 02 58.6 63.9 61.0 0 020 15.8 21 360 0.0 3 680.6 03 59.7 66.1 60.7 T 070 9.7 15 070 0.0 5 687.5 04 53.6 64.4 60.6 T 090 12.8 15 110 0.0 2 690.1 05 55.3 62.8 57.5 0 090 16.4 21 090 0.0 0 686.5 06 53.1 57.8 55.2 0 050 20.8 24 050 0.0 0 681.1 07 52.0 58.9 54.9 0 050 21.1 28 050 0.0 1 678.2 08 57.0 60.0 58.2 0 020 21.0 25 020 0.0 2 676.0 09 55.3 63.3 59.9 0 020 19.4 23 360 0.0 4 682.0 10 55.9 59.4 57.0 0 360 19.0 23 360 0.0 4 684.2 11 59.4 66.7 63.8 0 070 13.9 17 070 0.0 1 677.2 12 62.5 66.7 64.2 0 090 15.2 18 090 0.0 0 672.6 13 57.0 63.9 58.6 0 020 22.1 28 020 0.0 2 673.5 14 58.6 61.7 59.2 0 020 22.7 28 020 0.0 0 674.2 15 61.7 65.0 62.9 0 070 17.6 21 070 0.0 0 672.7 16 60.3 65.6 62.7 0 050 17.8 23 050 0.0 0 667.3 17 63.6 67.8 65.9 0 020 17.4 21 020 0.0 1 670.6 18 64.7 67.8 66.1 0 020 22.3 27 020 0.0 2 674.7 19 64.2 67.2 64.8 0 020 20.5 23 020 0.0 0 667.7 20 60.8 65.0 62.3 0 020 21.4 29 020 0.0 1 662.5 21 64.2 70.6 67.0 0 020 14.1 18 020 0.0 1 666.4 22 64.7 70.6 66.3 0 020 13.8 18 360 0.0 3 672.9 23 60.3 67.2 62.1 0 020 13.5 18 360 0.0 6 675.9 24 54.7 64.4 59.6 0 090 12.3 16 090 0.0 4 671.3 25 63.1 71.7 68.3 0 090 13.4 17 090 0.0 0 667.3 26 62.5 72.2 68.9 0 360 16.8 24 360 0.0 3 672.8 27 47.0 62.8 53.1 0 360 26.9 38 360 0.0 8 678.9 BS 28 45.3 55.0 47.7 0 360 31.6 37 360 0.0 8 673.7 29 54.2 57.8 55.8 0 360 24.1 29 360 0.0 6 669.7 30 55.3 61.7 57.9 0 360 18.1 21 360 0.0 6 673.1 31 41.1 57.8 46.7 0 340 26.0 38 320 0.0 7 677.6 BS AVG 57.4 64.0 60.2 T 020 18.7 38 320 0.0 3 675.4 27th,31st AVG MONTHLY -60.2 PCPN TRACE NR DAYS CLEAR 17 HIGHEST -41.1 ON 31st SUNSHINE 0.0/ 0% PARTLY CLOUDY 11 LOWEST -72.2 ON 26th CLOUDY 03 HIGH PRESSURE 691.5 ON 4th LOW PRESSURE 661.5 ON 20th NET CHANGE IN SNOWSTAKE FIELD: +0.10 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. Maximum temperature data taken from NCDC data. No data on original LCD. All wind and pressure data taken from original LCD unless otherwise indicated. Prevailing and peak wind direction converted from cardinal direction to degrees. Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 57.2 57.4 Avg Wnd Spd Avg Press 675.2 675.4 Min T Max Press Fastest Wnd MPH Avg T 60.6 60.2 Min Press Changes to Daily Data: Max Temp No Daily Changes Min Temp No Daily Changes Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 56.7 61.1 60.6 59.4 58.9 55.6 55.6 58.9 59.4 57.8 63.3 64.4 60.6 60.0 63.3 63.3 To: 56.1 61.0 60.7 60.6 57.5 55.2 54.9 58.2 59.9 57.0 63.8 64.2 58.6 59.2 62.9 62.7 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 65.6 66.7 65.6 63.3 67.2 67.8 63.9 60.0 67.8 67.8 55.0 50.6 56.1 58.3 49.4 To: 65.9 66.1 64.8 62.3 67.0 66.3 62.1 59.6 68.3 68.9 53.1 47.7 55.8 57.9 46.7 Number of NCDC observations per day: 8