***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1960 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 48.6 66.1 59.4 T 090 16.4 25 070 0.0 2 671.0 02 62.8 65.0 64.0 T 020 22.2 36 020 0.0 5 668.8 BS 03 56.7 62.8 58.5 T 020 29.3 42 020 0.0 6 666.4 BS 04 52.8 58.9 56.5 0 020 30.5 43 020 0.0 8 656.5 BS 05 47.8 63.9 55.5 T 020 15.9 31 020 0.0 5 646.8 BS 06 63.9 73.4 68.9 T 360 13.1 18 020 0.0 2 653.6 07 60.6 77.2 72.0 T 140 7.5 14 140 0.0 4 656.3 08 54.4 63.9 57.2 T 360 10.4 19 360 0.0 7 662.7 09 62.2 70.0 66.4 T 020 9.7 19 360 0.0 6 666.3 10 45.6 61.7 50.3 T 340 16.1 27 320 0.0 8 672.4 IF 11 51.1 60.6 57.9 T 360 16.5 22 360 0.0 5 679.6 12 47.8 57.2 51.9 T 360 14.2 23 360 0.0 7 680.7 13 54.4 60.0 57.2 T 090 15.5 24 070 0.0 2 674.1 14 57.2 66.1 60.4 T 090 13.6 21 070 0.0 1 671.2 15 65.6 70.6 68.1 0 090 10.0 17 070 0.0 0 673.0 16 46.1 67.2 54.1 0 360 21.9 37 020 0.0 7 673.6 BS 17 42.2 46.1 45.2 0 360 23.4 32 360 0.0 8 669.7 BS 18 46.1 53.3 49.5 0 020 24.8 37 020 0.0 8 664.9 BS 19 53.3 59.4 56.1 0 020 20.0 29 020 0.0 2 662.9 20 59.4 64.4 61.6 0 020 13.6 23 020 M 4 667.6 21 59.4 63.9 60.9 0 020 12.2 20 020 M 6 672.5 22 43.9 61.7 51.9 0 360 23.4 42 050 M 8 678.1 BS 23 41.1 46.1 43.0 0 360 25.1 36 020 M 7 681.8 IFBS 24 44.4 50.0 47.6 T 050 14.5 29 320 M 6 682.2 IFBS 25 45.0 55.6 49.1 T 090 17.7 27 070 M 4 680.2 26 50.0 56.7 53.3 0 110 18.9 28 110 M 2 675.8 27 56.1 65.0 60.2 0 090 14.2 21 110 M 2 672.7 28 61.1 65.0 63.8 T 090 14.4 21 090 M 0 680.0 29 57.8 63.9 61.2 T 090 13.1 21 090 M 2 682.5 30 58.9 62.2 60.2 T 090 14.2 20 090 M 2 681.5 AVG 53.2 61.9 57.4 T 020 17.1 43 020 M 5 670.8 4th AVG MONTHLY -57.4 PCPN TRACE NR DAYS CLEAR 11 HIGHEST -41.1 ON 23rd SUNSHINE M PARTLY CLOUDY 10 LOWEST -77.2 ON 7th CLOUDY 09 HIGH PRESSURE 684.2 ON 24th LOW PRESSURE 643.1 ON 5th NET CHANGE IN SNOWSTAKE FIELD: M SNOWSTAKE DATA NOT AVAILABLE. Sunrise occurred at 2150UTC 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. Wind speed converted from knots to MPH. 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 53.3 53.2 Avg Wnd Spd Avg Press Min T Max Press Fastest Wnd MPH Avg T 57.6 57.4 Min Press Changes to Daily Data: Max Temp Day 1 14 17 From: 50.0 57.8 43.9 To: 48.6 57.4 42.2 Min Temp Day 6 21 From: 73.3 63.3 To: 73.4 63.9 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 14 16 From: 58.1 63.9 59.7 55.8 55.8 68.6 68.9 59.2 66.1 53.6 55.8 52.5 61.9 56.7 To: 59.4 64.0 58.5 56.5 55.5 68.9 72.0 57.2 66.4 50.3 57.9 51.9 60.4 54.1 Day 17 18 19 20 21 22 23 24 25 27 28 29 30 From: 45.0 49.7 56.4 61.9 61.4 52.8 43.6 47.2 50.3 60.6 63.1 60.8 60.6 To: 45.2 49.5 56.1 61.6 60.9 51.9 43.0 47.6 49.1 60.2 63.8 61.2 60.2 Number of NCDC observations per day: 24