***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1981 MONTH SEPTEMBER .... 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 46.7 50.6 48.5 0 010 26.3 39 360 0.0 2 677.1 2 46.3 49.9 48.5 0 020 21.3 44 010 0.0 2 672.8 3 46.9 60.0 55.3 0 010 21.5 35 020 0.0 2 673.5 4 54.6 62.0 60.3 0 010 14.9 44 010 0.0 2 674.5 5 58.3 62.0 59.0 0 020 15.2 30 010 0.0 5 666.7 6 58.4 72.0 70.5 0 140 4.9 23 360 0.0 1 667.4 7 66.0 72.4 69.0 0 040 7.1 18 140 0.0 2 674.1 8 55.0 71.1 59.4 0 030 4.8 12 040 0.0 7 679.1 9 54.9 67.0 63.3 T 100 9.8 14 110 0.0 2 674.7 10 60.7 68.4 68.0 T 080 8.3 20 090 0.0 0 671.8 11 66.9 71.0 70.0 0 120 7.1 15 060 0.0 0 669.2 12 69.8 74.1 73.2 0 090 6.3 13 090 0.0 2 666.2 13 66.8 74.5 70.5 T 060 4.5 9 070 0.0 4 662.5 14 57.0 76.7 63.8 T 350 5.7 10 300 0.0 8 664.5 15 56.0 73.0 67.6 T 060 3.4 15 350 0.0 5 668.5 16 63.7 74.3 68.2 T 050 6.0 15 360 0.0 8 667.0 17 54.0 71.3 56.5 T 010 16.3 25 020 0.0 7 663.1 18 49.8 63.0 59.2 T 010 15.4 30 010 0.0 4 664.3 19 50.9 63.5 53.4 0 350 18.9 29 330 0.0 7 669.0 20 50.9 53.3 51.9 T 360 24.4 31 010 M 8 670.8 21 51.0 60.0 57.5 T 080 12.6 32 360 M 2 676.3 22 57.5 66.0 63.7 0 090 11.1 21 090 M 0 669.1 23 62.6 67.0 64.2 0 020 16.3 22 040 M 1 668.8 24 61.3 66.0 63.7 0 020 9.1 22 010 M 2 684.0 25 61.5 67.0 66.2 0 090 7.1 16 080 M 1 686.6 26 62.2 67.5 64.1 0 070 10.6 16 080 M 0 683.3 27 62.0 69.0 67.7 0 090 6.9 21 070 M 0 679.8 28 66.8 70.2 68.5 T 060 7.7 15 050 M 2 679.1 29 60.0 70.2 61.5 T 050 9.7 16 040 M 2 681.6 30 48.9 62.6 54.9 0 020 18.4 25 020 M 5 683.5 AVG 57.6 66.5 62.3 T 010 11.7 44 010 M 3 673.0 2nd,4th AVG MONTHLY -62.3 PCPN TRACE NR DAYS CLEAR 19 HIGHEST -46.3 ON 2nd SUNSHINE M PARTLY CLOUDY 05 LOWEST -76.7 ON 14th CLOUDY 06 HIGH PRESSURE 687.9 ON 25th LOW PRESSURE 662.8 ON 18th NET CHANGE IN SNOWSTAKE FIELD: +0.40 inches Sunrise occurred at 2354UTC on day 20. 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 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 Monthly Averages: (All temps are Minus C) From To From To From To Max T 58.3 57.6 Avg Wnd Spd Avg Press 672.9 673.0 Min T 65.5 66.5 Max Press Fastest Wnd MPH Avg T 61.9 62.3 Min Press Changes to Daily Data: Max Temp Day 7 14 17 26 29 30 From: 69.0 65.6 56.0 63.3 61.0 56.1 To: 66.0 57.0 54.0 62.2 60.0 48.9 Min Temp Day 3 4 6 9 11 15 18 21 22 24 25 27 From: 54.6 60.5 71.4 64.0 70.1 66.0 60.0 57.5 62.6 64.9 66.5 67.3 To: 60.0 62.0 72.0 67.0 71.0 73.0 63.0 60.0 66.0 66.0 67.0 69.0 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 48.7 48.1 50.8 57.5 60.2 64.9 70.7 63.0 59.5 64.6 68.5 72.0 70.7 71.2 61.0 69.0 To: 48.5 48.5 55.3 60.3 59.0 70.5 69.0 59.4 63.3 68.0 70.0 73.2 70.5 63.8 67.6 68.2 Day 17 18 19 20 21 22 23 24 25 26 27 29 30 From: 63.7 54.9 57.2 52.1 54.3 60.0 64.8 63.1 64.0 65.4 64.7 65.6 59.3 To: 56.5 59.2 53.4 51.9 57.5 63.7 64.2 63.7 66.2 64.1 67.7 61.5 54.9 Number of NCDC observations per day: 4