***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1961 MONTH JANUARY ....... 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 23.9 25.6 24.4 T 020 19.7 25 020 M 7 688.5 02 24.4 26.7 25.6 0 070 11.5 16 020 M 2 685.7 03 24.4 27.8 26.4 0 020 8.3 16 020 M 8 688.1 04 27.8 31.1 29.5 0 050 4.4 9 360 M 5 690.5 05 27.8 31.1 28.8 0 090 5.1 8 090 M 4 690.8 06 25.6 29.4 27.3 0 070 4.7 8 070 M 4 692.9 07 24.4 27.8 26.0 0 070 2.6 6 070 M 5 694.5 08 26.7 28.3 27.6 0 110 5.6 8 110 M 0 693.9 09 26.7 28.9 27.6 0 110 6.3 9 110 M 0 689.8 10 28.9 30.0 29.4 0 140 8.6 12 110 M 0 687.8 11 30.0 31.1 30.3 0 140 9.3 13 110 M 0 680.3 12 28.9 30.0 29.4 0 110 10.2 13 110 M 0 682.4 13 28.3 29.4 29.1 0 090 9.3 13 090 M 1 679.3 14 28.3 30.0 29.3 0 050 7.8 12 050 M 2 680.7 15 29.4 31.7 30.4 0 090 5.8 10 090 M 0 683.7 16 27.8 32.2 30.4 T 090 5.1 8 050 M 4 685.4 17 28.3 30.6 29.4 T 020 8.2 11 050 M 5 685.4 18 30.0 31.7 31.1 T 020 8.5 14 020 M 6 686.8 19 30.6 32.8 31.5 T 360 9.5 15 020 M 5 687.4 20 31.7 33.9 33.1 0 110 9.5 13 110 M 1 687.1 21 32.2 33.9 33.8 0 110 12.7 15 110 M 0 685.7 22 32.2 33.9 33.1 0 110 9.5 14 110 M 0 685.7 23 31.7 34.4 33.2 0 050 8.4 12 090 M 6 684.7 24 32.8 34.4 33.6 0 360 11.2 14 050 M 4 681.0 25 31.7 35.0 33.6 0 360 10.7 14 360 M 4 680.7 26 33.9 35.0 34.2 0 070 12.0 14 070 M 0 683.4 27 32.2 33.9 32.9 0 070 14.4 16 070 M 0 681.3 28 32.8 36.1 34.2 0 070 9.8 15 070 M 0 681.3 29 31.7 36.1 34.9 0 360 15.1 24 320 M 2 685.1 30 31.7 37.2 33.8 T 070 9.5 18 320 M 4 691.2 31 35.0 36.7 33.8 0 070 9.8 12 070 M 0 696.9 AVG 29.4 31.8 30.6 T 070 9.1 25 020 M 3 686.4 1st AVG MONTHLY -30.6 PCPN TRACE NR DAYS CLEAR 17 HIGHEST -23.9 ON 1st SUNSHINE M PARTLY CLOUDY 12 LOWEST -37.2 ON 30th CLOUDY 02 HIGH PRESSURE 697.8 ON 31st LOW PRESSURE 678.5 ON 13th NET CHANGE IN SNOWSTAKE FIELD: -0.30 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. 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 Avg Wnd Spd Avg Press 686.8 686.4 Min T Max Press Fastest Wnd MPH Avg T Min Press Changes to Daily Data: Max Temp No Daily Changes 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: 25.0 25.6 26.1 29.4 29.4 27.8 26.1 27.8 27.8 29.4 30.6 29.4 28.9 29.4 30.6 30.0 To: 25.3 25.3 27.8 30.0 28.3 25.8 27.4 27.1 28.6 30.2 29.7 29.3 29.1 29.8 31.0 29.4 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 29.4 31.1 31.7 32.8 33.3 33.3 33.3 33.9 33.3 34.4 33.3 34.4 33.9 34.4 36.1 To: 30.3 31.0 32.3 33.3 32.9 32.8 33.8 33.3 34.2 33.7 32.9 35.3 33.5 35.4 35.1 Number of NCDC observations per day: 24