LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1959 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 51.4 63.9 59.0 T 110 12.6 24 110 0.0 6 672.5 02 44.2 52.2 47.7 T 200 8.0 15 200 0.0 8 662.6 03 49.4 67.2 60.5 T 140 11.3 21 140 0.0 3 657.6 04 65.3 72.2 68.0 T 110 14.4 23 110 0.0 0 660.6 05 64.7 75.0 68.3 T 090 6.6 16 090 0.0 5 664.7 06 67.8 77.2 72.9 T 090 10.3 17 020 0.0 0 665.2 07 61.4 68.3 63.7 T 020 9.0 18 020 0.0 7 664.4 08 64.4 72.2 68.3 T 050 10.6 16 050 0.0 6 665.2 09 67.2 73.4 70.7 T 110 13.4 18 090 0.0 1 664.6 10 70.8 73.9 72.2 0 090 14.8 21 110 0.0 0 663.8 11 70.8 76.1 72.7 0 090 15.0 18 090 0.0 0 662.6 12 73.9 78.4 75.8 0 090 11.9 16 090 0.0 0 662.4 13 73.4 78.9 75.7 0 090 11.4 17 090 0.0 0 656.1 14 68.9 77.8 73.1 0 360 11.0 16 360 0.0 5 661.9 15 56.7 69.4 64.0 0 020 19.3 32 020 0.0 8 676.1 16 51.1 57.2 54.6 0 360 23.7 32 360 0.0 8 678.4 17 51.4 58.9 54.3 0 020 20.9 29 360 0.0 7 674.9 18 58.3 61.1 59.8 T 020 16.7 23 020 0.0 6 673.8 19 58.1 62.8 59.8 T 020 19.0 25 020 0.0 8 675.2 20 55.9 60.6 58.4 T 360 15.6 19 360 0.0 8 675.5 21 47.5 56.7 49.6 T 340 14.7 21 340 0.0 8 679.1 22 49.4 57.8 55.0 T 360 15.2 18 360 99.9 7 683.1 23 51.4 56.1 53.0 0 320 16.5 22 050 99.9 6 680.7 24 53.6 62.8 58.5 0 020 16.6 21 020 99.9 2 681.3 25 56.4 60.6 58.1 0 020 14.0 18 020 99.9 5 687.9 26 54.7 60.0 57.1 0 050 12.7 16 050 99.9 1 689.8 27 53.3 60.0 55.1 0 070 14.1 23 070 99.9 1 685.1 28 50.6 56.1 53.2 0 050 19.5 24 020 99.9 2 677.3 29 52.2 58.9 55.3 0 050 17.6 22 050 99.9 5 678.2 30 52.5 57.8 55.0 0 020 16.9 22 020 99.9 6 679.7 AVG 58.2 65.4 61.6 020 14.4 32 360 99.9 4 672.0 15th,16th AVG MONTHLY -61.6 PCPN TRACE NR DAYS CLEAR 11 HIGHEST -44.2 ON 2nd SUNSHINE 0.0/ 0% PARTLY CLOUDY 10 LOWEST -78.9 ON 13th CLOUDY 09 HIGH PRESSURE 690.1 ON 26th LOW PRESSURE 654.6 ON 13th NET CHANGE IN SNOWSTAKE FIELD: 9.99 SNOWSTAKE DATA NOT AVAILABLE. SUNSHINE DATA MISSING. 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 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 58.4 58.2 Avg Wnd Spd Avg Press 671.9 672.0 Min T 65.5 65.4 Max Press 690.0 690.1 Fastest Wnd MPH Avg T 61.9 61.6 Min Press 654.8 654.6 Changes to Daily Data: Max Temp Day 1 2 4 5 7 10 11 13 From: 51.7 44.4 65.6 65.0 61.7 71.1 71.1 73.5 To: 51.4 44.2 65.3 64.7 61.4 70.8 70.8 73.4 Day 17 19 20 21 23 24 25 26 30 From: 51.7 58.3 56.1 47.8 51.7 53.9 56.7 55.0 52.8 To: 51.4 58..1 55.9 47.5 51.4 53.6 56.4 54.7 52.5 Min Temp Day 9 From: 73.5 To: 73.4 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 From: 52.5 51.5 65.6 69.5 69.7 68.8 65.7 69.3 71.9 71.9 74.7 75.5 75.5 69.2 58.4 To: 59.0 47.7 60.5 68.0 68.3 72.9 63.7 68.3 70.7 72.2 72.7 75.8 75.7 73.1 64.0 Day 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 From: 52.8 58.2 60.3 58.6 54.3 51.6 54.3 55.0 59.7 57.1 56.4 53.7 54.7 54.4 55.9 To: 54.6 54.3 59.8 59.8 58.4 49.6 55.0 53.0 58.5 58.1 57.1 55.1 53.2 55.3 55.0 Number of NCDC observations per day: 24