***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1963 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 56.7 63.3 60.9 T 090 11.4 18 360 0.0 2 674.2 02 56.7 66.1 61.0 T 360 10.5 17 360 0.0 5 681.6 03 55.6 69.4 64.6 T 360 7.1 13 360 0.0 2 680.3 04 57.8 66.1 60.9 T 360 13.9 23 360 0.0 6 680.0 05 47.2 62.8 54.3 T 360 21.6 25 340 0.0 6 681.3 06 41.1 48.3 44.7 T 320 14.9 21 320 0.0 8 679.4 07 41.7 60.6 49.9 T 290 7.0 21 290 0.0 6 672.2 08 50.6 60.0 56.4 T 360 14.1 23 360 0.0 8 672.7 09 46.4 58.3 50.9 T 360 22.9 28 340 0.0 8 674.2 BS 10 44.4 48.3 46.4 T 360 18.8 24 360 0.0 7 675.6 BS 11 43.9 49.4 46.5 T 360 14.8 20 360 0.0 7 678.5 12 43.1 52.8 48.5 T 360 17.6 22 360 0.0 4 679.4 13 47.0 53.9 51.5 T 360 18.3 23 360 0.0 2 680.6 14 50.3 53.3 51.6 0 360 24.4 27 360 0.0 5 680.6 BS 15 52.8 57.2 55.1 0 360 22.8 29 360 0.0 3 679.8 BS 16 51.4 58.3 55.2 0 360 23.7 27 360 0.0 5 676.1 17 51.7 58.9 55.1 0 360 25.6 29 360 0.0 3 680.3 BS 18 58.9 63.3 62.1 0 020 21.6 28 020 0.0 1 682.9 19 59.4 62.2 60.8 0 360 20.5 24 360 0.0 1 682.8 20 59.4 63.9 62.1 0 050 16.1 23 020 0.0 0 677.8 21 62.2 66.7 64.6 T 050 13.0 16 050 0.0 0 682.3 22 63.9 67.2 65.4 0 070 10.4 14 070 0.0 0 689.2 23 53.3 65.0 57.8 T 020 17.3 23 020 0.0 3 692.8 24 48.6 53.3 49.7 T 020 24.6 29 020 0.0 6 695.2 BS 25 47.0 56.7 50.7 T 020 18.1 30 360 0.0 2 697.6 BS 26 51.7 56.7 54.9 T 050 11.5 15 050 0.0 2 698.4 27 46.7 55.0 49.6 T 050 4.8 9 020 0.0 6 693.1 28 50.0 63.9 58.0 0 110 10.6 18 140 0.0 1 683.5 29 63.3 67.8 65.9 T 090 13.5 16 110 0.0 0 674.8 30 53.9 63.3 60.1 T 020 16.3 21 020 0.0 5 679.6 31 50.3 56.7 52.9 T 360 15.9 20 360 0.0 4 682.9 AVG 51.8 59.6 55.7 T 360 16.2 30 360 0.0 4 681.9 25th AVG MONTHLY -55.7 PCPN TRACE NR DAYS CLEAR 12 HIGHEST -41.1 ON 6th SUNSHINE 0.0/ 0% PARTLY CLOUDY 14 LOWEST -69.4 ON 3rd CLOUDY 05 HIGH PRESSURE 699.6 ON 25th,26th LOW PRESSURE 671.2 ON 7th NET CHANGE IN SNOWSTAKE FIELD: +2.10 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. 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 Monthly Averages: (All temps are Minus C) From To From To From To Max T 51.9 51.8 Avg Wnd Spd Avg Press Min T Max Press Fastest Wnd MPH Avg T 55.9 55.7 Min Press Changes to Daily Data: Max Temp Day 9 12 13 14 16 24 25 31 From: 46.7 43.3 47.2 50.6 51.7 48.9 47.2 50.6 To: 46.4 43.1 47.0 50.3 51.4 48.9 47.0 50.3 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: 60.0 61.7 62.8 62.2 55.0 45.0 51.1 55.6 52.8 46.7 46.7 48.3 50.6 52.2 55.0 55.0 To: 60.9 61.0 64.6 60.9 54.3 44.7 49.9 56.4 50.9 46.4 46.5 48.5 51.5 51.6 55.1 55.2 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 55.6 61.1 61.1 61.7 64.4 65.6 59.4 51.1 52.2 54.4 50.0 57.2 65.6 58.9 53.9 To: 55.1 62.1 60.8 62.1 64.6 65.4 57.8 49.7 50.7 54.9 49.6 58.0 65.9 60.1 52.9 Number of NCDC observations per day: 8