***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1964 MONTH MAY ....... 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 57.8 62.8 60.5 0 060 12.7 16 030 0.0 0 679.6 02 58.9 66.1 60.8 0 030 11.5 16 020 0.0 0 680.4 03 58.3 62.8 59.5 0 030 11.8 16 030 0.0 0 682.8 04 58.9 61.1 60.0 0 050 5.8 14 030 0.0 0 679.9 05 60.6 63.9 62.3 0 080 8.1 13 060 0.0 0 679.1 06 60.0 64.4 61.7 0 030 13.8 21 030 0.0 0 679.3 07 59.4 61.7 60.6 0 030 11.5 18 020 0.0 0 679.8 08 57.2 64.4 60.0 0 030 18.4 27 030 0.0 0 672.8 09 53.9 58.3 55.8 0 020 12.7 27 030 0.0 0 668.8 10 55.0 61.7 58.5 0 060 11.5 17 050 0.0 0 667.8 11 62.8 68.3 65.8 0 060 11.5 16 040 0.0 0 666.8 12 64.4 67.8 66.0 0 060 11.5 16 060 0.0 0 666.7 13 60.6 65.0 62.2 0 010 12.7 20 010 0.0 0 662.0 14 57.8 70.0 65.3 0 090 10.4 17 040 0.0 0 661.4 15 64.4 71.1 67.8 0 100 8.1 16 110 0.0 0 659.0 16 63.9 66.7 65.5 0 100 5.8 13 010 0.0 0 658.6 17 62.8 64.4 63.3 0 010 10.4 15 010 0.0 0 665.1 18 63.9 69.4 66.8 0 100 6.9 10 100 0.0 0 669.6 19 63.9 68.3 65.4 0 100 13.8 21 090 0.0 0 663.7 20 62.8 71.1 67.2 0 060 11.5 17 080 0.0 0 661.2 21 58.9 69.4 65.2 0 010 12.7 18 360 0.0 0 660.0 22 54.4 66.1 59.5 0 360 11.5 22 330 0.0 3 658.9 23 60.6 67.8 63.0 0 020 10.4 18 010 0.0 1 658.0 24 61.7 64.4 62.2 0 030 11.5 17 020 0.0 0 655.3 25 61.7 66.1 64.1 0 020 10.4 16 030 0.0 0 656.8 26 65.6 70.0 66.6 0 010 16.1 25 360 0.0 1 656.6 27 60.0 69.4 64.6 0 350 17.3 22 350 0.0 2 663.6 28 51.7 59.4 56.1 0 340 18.4 23 340 0.0 6 665.8 29 45.9 50.6 47.5 0 330 25.3 31 320 0.0 8 665.5 30 42.5 50.0 44.4 0 360 29.4 35 360 0.0 8 667.4 31 43.3 55.6 50.9 0 020 18.4 31 360 0.0 6 671.3 AVG 58.5 64.5 61.3 0 030 13.0 35 360 0.0 1 667.2 30th AVG MONTHLY -61.3 PCPN 0.0 NR DAYS CLEAR 26 HIGHEST -42.5 ON 30th SUNSHINE 0.0/ 0% PARTLY CLOUDY 03 LOWEST -71.1 ON 15th CLOUDY 02 HIGH PRESSURE 683.4 ON 3rd LOW PRESSURE 654.1 ON 24th NET CHANGE IN SNOWSTAKE FIELD: +0.004 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. Changed Extremes: From To Max T -42.8 -42.5 Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 58.6 58.5 Avg Wnd Spd Avg Press 667.0 667.2 Min T 64.4 64.5 Max Press Fastest Wnd MPH Avg T 61.5 61.3 Min Press Changes to Daily Data: Max Temp Day 14 29 30 From: 61.1 46.1 42.8 To: 57.8 45.9 42.5 Min Temp Day 11 25 From: 67.8 65.6 To: 68.3 66.1 Avg Temp Day 1 2 3 5 6 8 9 10 11 12 13 14 16 From: 60.0 62.8 60.0 62.2 62.2 60.6 56.1 57.8 65.0 66.1 62.8 65.6 65.6 To: 60.5 60.8 59.5 62.3 61.7 60.0 55.8 58.5 65.8 66.0 62.2 65.3 65.5 Day 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 66.7 66.1 66.7 64.4 60.6 64.4 63.3 63.9 67.8 64.4 55.6 48.3 45.0 49.4 To: 66.8 65.4 67.2 65.2 59.5 63.0 62.2 64.1 66.6 64.6 56.1 47.5 44.4 50.9 Fast MPH Day 4 18 From: 14 10 To: 15 11 Avg Press Day 5 7 12 26 27 28 30 31 From: 689.4 703.5 659.3 0.0 0.0 658.7 0.0 0.0 To: 679.1 679.8 666.7 656.6 663.6 665.8 667.4 671.3 Number of NCDC observations per day: 8