***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1965 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 61.7 68.3 64.7 0 070 11.5 23 060 0.0 0 671.1 02 67.8 73.9 71.4 0 110 9.5 19 120 0.0 0 668.4 03 71.7 74.5 73.2 0 060 5.9 13 100 0.0 0 671.7 04 68.9 72.2 70.6 0 040 11.1 18 040 0.0 0 676.5 05 66.7 70.0 67.6 0 040 12.9 21 040 0.0 1 678.5 06 66.1 72.8 70.5 0 090 9.5 20 070 0.0 4 676.7 07 64.4 73.9 70.0 0 010 14.9 25 010 0.0 4 673.4 08 53.3 65.0 59.7 0 010 23.3 33 360 0.0 6 678.4 BS 09 52.2 55.0 53.5 0 010 20.0 30 360 0.0 4 682.6 BS 10 51.1 66.1 60.8 0 110 16.3 25 110 0.0 2 669.6 BS 11 63.9 67.8 65.9 0 030 17.7 25 030 0.0 0 657.8 BS 12 65.0 69.4 67.0 0 010 17.1 24 010 0.0 1 666.1 BS 13 62.8 66.1 64.5 0 020 15.9 23 010 0.0 2 666.7 14 62.2 70.0 64.9 0 030 12.5 21 040 0.0 1 661.7 15 54.4 69.4 63.1 0 010 19.1 39 360 0.0 6 667.8 BS 16 38.9 53.9 43.3 0 350 34.2 52 340 0.0 8 674.9 BS 17 43.3 53.3 48.6 0 020 26.8 43 350 0.0 6 687.2 BS 18 52.8 61.7 56.5 0 020 21.4 37 020 0.0 0 686.5 BS 19 61.1 63.9 62.7 0 020 11.6 18 010 0.0 7 689.3 BS 20 55.6 63.9 60.1 0 020 11.9 18 020 0.0 4 693.3 21 49.2 59.4 55.9 0 030 11.0 16 020 0.0 6 692.4 22 45.6 49.4 46.9 T 360 7.2 14 360 0.0 8 687.8 23 47.2 62.8 55.7 T 140 8.3 14 120 0.0 2 680.7 24 58.9 68.3 63.0 T 110 4.1 13 100 0.0 6 674.9 25 66.7 73.4 70.3 0 100 13.1 22 110 0.0 2 670.3 BS 26 72.8 74.5 73.8 0 110 17.7 29 120 0.0 1 664.8 BS 27 69.4 73.9 71.1 0 090 11.6 17 100 0.0 0 664.8 BS 28 65.0 74.4 70.3 0 040 11.7 20 040 0.0 4 672.9 29 60.0 67.8 62.6 0 060 14.4 23 060 0.0 5 672.9 BS 30 59.4 68.9 65.0 0 050 13.2 22 030 0.0 0 670.3 AVG 59.3 66.8 63.1 T 010 14.5 52 340 0.0 3 675.0 16th AVG MONTHLY -63.1 PCPN TRACE NR DAYS CLEAR 16 HIGHEST -38.9 ON 16th SUNSHINE 0.0/ 0% PARTLY CLOUDY 11 LOWEST -74.5 ON 3rd CLOUDY 03 HIGH PRESSURE 693.5 ON 20th LOW PRESSURE 657.0 ON 11th NET CHANGE IN SNOWSTAKE FIELD: +0.47 inches Sunrise occurred at 0257UTC on day 21. Sunrise based on US Naval Observatory time. 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. Prevailing wind direction taken from NCDC data. No data on original LCD. All wind and pressure data taken from original LCD unless otherwise indicated. Changed Extremes: From To Max T Min T -74.4 -74.5 Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T Avg Wnd Spd 14.4 14.5 Avg Press Min T Max Press Fastest Wnd MPH Avg T 63.0 63.1 Min Press Changes to Daily Data: Max Temp Day 21 29 From: 49.4 60.6 To: 49.2 60.0 Min Temp Day 3 25 26 From: 74.4 73.3 74.4 To: 74.5 73.4 74.5 Avg Temp Day 1 2 3 5 6 7 8 9 10 11 12 13 14 15 16 From: 65.0 71.1 73.3 68.3 69.4 69.4 59.4 53.9 58.9 63.3 67.2 64.4 66.1 62.2 46.7 To: 64.7 71.4 73.2 67.6 70.5 70.0 59.7 53.5 60.8 65.9 67.0 64.5 64.9 63.1 43.3 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 From: 48.3 57.2 62.8 60.0 54.4 47.8 55.0 63.9 70.0 73.9 71.7 70.0 64.4 64.4 To: 48.6 56.5 62.7 60.1 55.9 46.9 55.7 63.0 70.3 73.8 71.1 70.3 62.6 65.0 Avg MPH Day 2 3 6 14 25 29 From: 8.4 7.2 11.6 13.9 11.8 7.9 To: 9.5 5.9 9.5 12.5 13.1 14.4 Fast MPH Day 2 From: 17 To: 19 Number of NCDC observations per day: 8