***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1961 MONTH MARCH ....... 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 49.7 53.3 50.9 0 050 11.9 15 050 M 0 688.6 02 52.0 53.9 52.7 0 070 10.9 14 050 M 1 692.2 03 52.5 55.0 53.4 0 070 8.9 15 070 M 4 688.8 04 52.5 56.7 53.8 0 090 13.2 16 090 M 1 681.2 05 56.4 58.9 57.2 0 090 11.6 16 090 M 0 680.7 06 51.4 58.3 54.9 0 360 8.6 16 360 M 5 681.5 07 50.3 54.4 51.5 0 070 8.6 14 020 M 7 677.8 08 52.0 57.8 54.1 0 070 10.1 15 070 M 5 674.6 09 56.4 61.1 58.6 0 070 10.0 13 090 M 2 675.8 10 60.3 62.8 61.1 0 050 9.1 10 050 M 0 673.9 11 60.8 64.4 62.6 0 050 8.2 15 050 M 1 673.0 12 58.1 65.6 60.8 0 050 13.3 16 020 M 2 675.1 BSIF 13 58.1 63.9 59.7 0 360 11.5 15 360 M 4 681.7 14 58.6 63.9 61.2 0 020 10.1 14 360 M 2 685.6 15 60.3 63.3 61.5 0 090 10.1 14 090 M 0 685.1 16 63.1 67.8 65.7 0 090 11.5 17 090 M 0 681.5 17 64.2 67.8 65.2 0 050 13.7 17 050 M 0 680.8 18 60.8 66.1 63.1 0 020 11.9 16 020 M 1 682.7 19 59.7 63.9 60.5 0 070 13.4 17 070 M 2 683.5 20 53.6 61.7 57.0 T 020 16.2 20 020 M 2 684.6 SGBSIF 21 52.5 55.0 53.4 T 020 19.7 23 020 M 4 686.8 BS 22 51.4 57.2 53.9 0 020 16.9 23 020 0.0 3 687.1 BS 23 48.6 55.0 51.8 T 050 17.4 22 020 0.0 4 685.7 24 48.1 55.0 52.2 T 020 20.0 24 360 0.0 6 686.1 BS 25 46.4 48.9 47.3 T 360 19.6 23 360 0.0 7 686.4 26 46.1 53.3 48.6 T 360 17.7 23 360 0.0 8 681.2 SGBS 27 53.1 59.4 56.6 T 020 15.7 18 020 0.0 3 681.0 28 53.1 56.7 54.8 T 020 14.5 20 020 0.0 8 684.9 29 56.7 61.1 59.4 0 090 16.1 18 090 0.0 3 683.2 30 54.7 61.1 57.0 0 090 19.6 25 020 0.0 3 679.6 31 55.9 62.2 58.3 0 050 19.5 24 020 0.0 2 685.1 AVG 54.8 59.5 56.7 T 020 13.5 25 020 M 3 682.4 30th AVG MONTHLY -56.7 PCPN TRACE NR DAYS CLEAR 16 HIGHEST -46.1 ON 26th SUNSHINE M PARTLY CLOUDY 11 LOWEST -67.8 ON 16th,17th CLOUDY 04 HIGH PRESSURE 692.9 ON 2nd LOW PRESSURE 672.9 ON 11th NET CHANGE IN SNOWSTAKE FIELD: +0.80 inches Sunset occurred on 2305UTC on day 22. Sunset 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. All maximum temperatures taken from NCDC Data. No data on original LCD. 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 54.7 54.8 Avg Wnd Spd Avg Press Min T Max Press Fastest Wnd MPH Avg T 57.1 56.7 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: 51.7 53.3 53.9 54.4 57.8 55.0 52.2 55.0 58.9 61.7 62.8 61.7 61.1 61.7 61.7 64.4 To: 50.9 52.7 53.4 53.8 57.2 54.9 51.5 54.1 58.6 611 62.6 60.8 59.7 61.2 61.5 65.7 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 66.1 63.9 61.7 57.8 53.9 54.4 52.2 51.7 47.8 50.0 56.1 55.0 58.9 58.3 58.8 To: 65.2 63.1 60.5 57.0 53.4 53.9 51.8 52.2 47.3 48.6 56.6 54.8 59.4 57.0 58.3 Number of NCDC observations per day: 8