***Corrected Winter 2011*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1973 MONTH MARCH .... ALL TEMPERATURES MINUS C.... DAY TEMPERATURE C PCPN AVG WIND FASTEST SUN SKY STN WX MAX MIN AVG SPEED MILE SHINE COVER PRESS DIR MPH SPD DIR HRS 1 42.0 53.3 47.6 T 040 23.0 30 030 18.1 8 677.6 BS,IC 2 39.8 48.9 41.1 0 020 24.3 31 020 0.0 8 682.2 BS 3 37.5 43.3 41.1 0 020 20.1 29 020 0.0 8 684.2 BS 4 37.2 47.5 45.9 0 030 21.2 26 030 16.5 6 676.9 BS 5 45.6 54.7 51.9 0 040 17.0 28 040 13.5 1 675.4 BS 6 52.2 57.0 56.0 T 060 11.3 16 060 24.0 0 675.4 IC 7 56.1 58.6 57.5 T 110 12.2 16 110 24.0 0 674.5 IC 8 57.2 59.4 58.5 T 120 10.5 14 100 24.0 0 674.5 IC 9 58.3 60.3 59.6 T 080 11.4 16 080 24.0 0 678.5 IC 10 59.4 62.5 61.1 T 100 11.9 18 110 24.0 0 675.0 IC 11 59.2 62.8 61.2 T 110 12.1 17 060 24.0 4 673.7 IC 12 56.4 62.8 59.2 T 050 10.9 17 050 24.0 5 674.6 13 55.6 62.2 56.7 T 040 9.9 15 040 12.0 7 669.4 IF 14 55.9 58.9 57.0 T 040 14.7 22 040 24.0 6 667.4 IC,IF,BS 15 44.2 58.9 54.5 T 030 21.7 26 030 12.0 6 667.2 BS 16 30.9 56.7 35.8 0 020 23.7 30 350 0.0 8 665.3 BS 17 31.1 45.9 38.2 0 360 17.7 31 340 23.0 6 668.0 18 36.7 54.7 51.3 T 010 12.0 22 010 23.0 2 674.6 IC 19 50.0 59.4 57.4 T 060 11.3 17 040 24.0 2 677.6 IC 20 54.2 59.4 56.2 T 120 11.9 16 110 24.0 3 678.7 IC 21 51.1 59.2 55.2 0 120 11.2 17 110 0.0 6 678.9 22 56.1 61.4 59.6 0 110 10.1 16 080 0.0 2 679.5 23 56.4 62.2 58.7 0 040 13.0 19 040 0.0 2 682.0 24 49.7 58.9 54.2 0 030 19.5 23 030 0.0 2 681.6 25 49.7 55.3 52.3 0 020 18.3 25 020 0.0 2 679.5 BS 26 51.1 59.4 57.8 0 030 12.0 26 020 0.0 3 679.0 27 57.2 64.7 62.2 0 050 7.4 19 070 0.0 1 676.7 28 62.2 65.0 64.0 0 100 8.9 16 090 0.0 1 673.9 29 63.1 67.0 64.9 0 060 10.1 14 060 0.0 1 671.1 30 65.0 67.8 66.4 0 120 11.9 18 100 0.0 0 670.3 31 64.7 68.3 65.5 0 070 12.5 14 060 0.0 0 672.6 AVG 51.2 58.6 55.1 T 040 14.3 31 340 16.4 3 675.3 2nd,17th AVG MONTHLY -55.1 PCPN TRACE NR DAYS CLEAR 17 HIGHEST -30.9 ON 16th SUNSHINE 358.1/ 68% PARTLY CLOUDY 09 LOWEST -68.3 ON 31st CLOUDY 05 HIGH PRESSURE 685.1 ON 3rd LOW PRESSURE 662.5 ON 16th NET CHANGE IN SNOWSTAKE FIELD: +0.32 inches Sunset occurred at 2047UTC on day 22. Sunset 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 Average Sky Cover changed to reflect data from 00Z through 00Z daily. All Sky Cover changed to Octas. Peak wind speed, peak wind direction, precipitation, sunshine amount, and present wx reported in NZST. Insufficient data to convert these values to UTC. All temperature, wind, and pressure data taken from NCDC data. LCD data originally reported in NZST. Changed Extremes: From To Max T -31.1 -30.9 Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 52.4 51.2 Avg Wnd Spd 15.0 14.3 Avg Press Min T 57.9 58.6 Max Press Fastest Wnd MPH Avg T 55.1 55.1 Min Press Changes to Daily Data: Max Temp Day 1 2 3 11 12 14 15 16 20 23 24 25 29 31 From: 48.9 41.1 40.0 60.6 59.4 56.1 56.7 31.1 55.6 58.9 55.0 50.0 63.9 65.0 To: 42.0 39.8 37.5 59.2 56.4 55.9 44.2 30.9 54.2 56.4 49.7 49.7 63.1 64.7 Min Temp Day 4 5 6 7 9 10 17 18 21 22 25 27 29 From: 46.7 52.2 56.7 57.8 60.0 61.1 38.3 50.0 57.8 60.6 55.0 63.9 66.1 To: 47.5 54.7 57.0 58.6 60.3 62.5 45.9 54.7 59.2 61.4 55.3 64.7 67.0 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 51.1 45.0 41.7 41.9 48.9 54.4 56.9 58.3 59.2 60.3 61.7 61.1 58.9 57.5 57.8 43.9 To: 47.6 41.1 41.1 45.9 51.9 56.0 57.5 58.5 59.6 61.1 61.2 59.2 56.7 57.0 54.5 35.8 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 31 From: 34.7 43.3 54.7 57.5 54.4 58.3 60.6 56.9 52.5 55.3 60.6 63.6 65.0 66.7 To: 38.2 51.3 57.4 56.2 55.2 59.6 58.7 54.2 52.3 57.8 62.2 64.0 64.9 65.5 Number of NCDC observations per day: 24