***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1960 MONTH DECEMBER ....... 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 26.7 31.7 29.1 T 360 12.9 17 360 M 8 683.0 02 30.6 32.2 31.7 T 360 13.8 15 360 M 3 681.7 03 31.1 32.8 32.0 T 360 12.8 15 360 M 6 682.0 04 29.4 31.7 30.6 T 360 12.5 17 020 M 7 682.4 05 28.9 31.1 30.1 T 360 13.4 16 020 M 7 682.2 06 27.2 30.6 29.4 T 360 17.1 22 360 M 4 683.4 07 28.3 30.6 30.0 T 020 14.8 18 020 M 2 685.2 08 30.0 31.7 30.9 T 070 10.9 14 050 M 1 682.4 09 27.2 30.0 28.7 T 050 15.5 20 050 M 1 680.0 10 27.2 28.3 27.8 T 360 21.4 25 360 M 4 682.4 11 25.0 28.3 26.8 T 020 18.1 23 360 M 3 680.2 12 26.1 28.9 27.9 T 360 10.4 17 360 M 6 682.9 13 27.2 28.9 28.2 T 360 11.3 18 320 M 8 682.7 14 26.1 27.8 27.0 T 360 13.7 22 360 M 5 682.2 15 27.2 28.9 28.1 T 020 2.7 8 020 M 1 679.0 16 21.1 27.8 24.4 T 290 9.2 16 270 M 7 680.5 17 19.4 26.1 22.7 T 270 6.2 13 360 M 7 678.3 18 25.0 28.3 27.1 T 070 10.7 13 070 M 4 673.2 19 24.4 28.9 26.4 T 360 15.4 21 290 M 7 677.6 20 24.4 27.8 26.1 T 360 11.4 18 290 M 4 687.1 21 26.7 28.9 28.2 T 050 11.8 15 290 M 5 684.4 22 25.6 27.2 26.3 T 020 14.3 17 020 M 6 682.5 23 25.6 27.2 26.6 T 360 10.0 14 360 M 3 685.7 24 25.0 27.8 26.5 T 050 8.3 13 050 M 8 688.2 25 23.9 25.0 24.2 T 050 9.6 15 050 M 8 686.1 26 23.9 26.7 25.6 0 360 9.8 13 360 M 3 687.9 27 24.4 26.7 25.4 0 020 8.5 13 050 M 3 690.1 28 25.6 27.2 26.3 T 360 12.8 15 360 M 1 688.5 29 26.1 27.2 26.5 T 020 10.0 13 360 M 1 688.6 30 23.3 26.7 24.8 T 020 9.7 14 020 M 3 689.5 31 21.7 24.4 23.4 T 020 14.7 23 360 M 3 688.3 AVG 25.9 28.6 27.4 T 360 12.1 25 360 M 4 683.5 10th AVG MONTHLY -27.4 PCPN TRACE NR DAYS CLEAR 06 HIGHEST -19.4 ON 17th SUNSHINE M PARTLY CLOUDY 16 LOWEST -32.8 ON 3rd CLOUDY 09 HIGH PRESSURE 690.8 ON 27th LOW PRESSURE 671.5 ON 18th NET CHANGE IN SNOWSTAKE FIELD: +0.40 inches 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. Maximum temperature data taken from NCDC data. No data on original LCD. All pressure and wind 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 25.8 25.9 Avg Wnd Spd Avg Press Min T 28.5 28.6 Max Press Fastest Wnd MPH Avg T 27.1 27.4 Min Press Changes to Daily Data: Max Temp No Daily Changes Min Temp Day 20 21 30 From: 26.1 27.8 23.9 To: 27.8 28.9 26.7 Avg Temp Day 1 3 4 5 6 7 8 9 11 12 13 14 15 From: 28.9 32.2 30.0 30.0 28.9 28.9 31.2 28.9 26.7 27.8 27.8 27.2 28.3 To: 29.1 32.0 30.6 30.1 29.4 30.0 30.9 28.7 26.8 27.9 28.2 27.0 28.1 Day 17 18 19 21 22 23 24 25 27 28 29 30 31 From: 22.8 27.2 26.7 26.1 26.7 26.7 26.7 24.4 25.6 26.7 26.7 23.3 23.3 To: 22.7 27.1 26.4 28.2 26.3 26.6 26.5 24.2 25.4 26.3 26.5 24.8 23.4 Fast MPH Day 30 From: 12 To: 14 Avg Press Day 18 24 From: 671.7 685.1 To: 673.2 688.2 Number of NCDC observations per day: 24