***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1979 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 46.1 59.8 48.7 T 010 22.8 26 010 0.0 8 686.4 2 45.0 53.9 49.4 T 360 20.2 30 020 0.0 8 692.5 3 42.9 52.1 45.5 T 010 16.7 29 010 0.0 8 695.1 4 44.0 56.0 54.0 T 080 11.8 24 010 0.0 2 691.6 5 45.5 56.7 50.0 T 040 13.8 26 030 0.0 6 682.5 6 47.9 58.3 55.7 T 010 20.2 23 020 0.0 4 682.3 7 43.0 58.1 45.8 T 360 16.4 28 010 0.0 6 687.4 8 42.5 51.1 49.5 T 010 9.2 23 340 0.0 6 692.1 9 47.7 53.2 52.4 T 090 10.0 16 010 0.0 6 685.1 10 51.2 56.7 54.2 0 090 11.2 14 090 0.0 2 677.0 11 53.1 66.1 63.0 T 090 9.7 17 090 0.0 0 670.3 12 61.5 69.0 67.0 0 100 9.7 13 100 0.0 2 666.3 13 64.4 69.3 66.0 0 090 9.7 12 100 0.0 1 664.5 14 65.0 68.1 67.0 0 070 8.9 12 070 0.0 2 660.9 15 61.7 68.9 65.1 0 070 6.9 12 040 0.0 5 663.6 16 58.3 69.3 62.2 0 010 16.2 23 030 0.0 6 668.6 17 53.2 62.2 55.3 0 030 15.5 26 010 0.0 8 673.2 18 50.0 60.7 54.8 T 010 16.1 20 010 0.0 6 678.5 19 42.2 57.2 44.6 T 350 20.4 28 350 0.0 8 681.1 20 38.9 45.7 40.0 T 320 20.4 35 340 0.0 8 679.6 21 38.1 56.1 50.5 T 080 7.8 31 320 0.0 5 679.9 22 49.4 59.4 56.4 T 080 9.5 20 100 0.0 2 674.0 23 55.0 64.2 58.5 0 010 9.5 14 010 0.0 6 676.3 24 54.0 62.7 57.2 T 010 11.2 18 300 0.0 6 673.9 25 54.4 59.8 56.8 T 360 12.6 20 010 0.0 8 669.0 26 54.4 65.0 62.6 T 070 9.2 20 360 0.2 2 674.3 27 62.7 65.9 63.5 T 090 8.9 12 090 21.7 2 675.2 28 55.0 65.7 60.6 T 020 12.9 18 090 5.8 4 672.8 29 53.2 65.4 54.0 0 010 15.3 23 010 1.2 8 674.1 30 53.9 60.0 58.7 T 030 10.3 22 010 2.4 6 674.3 AVG 51.1 60.6 55.6 T 010 13.1 35 340 3.3 5 677.4 20th AVG MONTHLY -55.6 PCPN TRACE NR DAYS CLEAR 09 HIGHEST -38.1 ON 21st SUNSHINE 31.3/ 14% PARTLY CLOUDY 13 LOWEST -69.3 ON 13th,16th CLOUDY 08 HIGH PRESSURE 696.0 ON 4th LOW PRESSURE 660.1 ON 15th NET CHANGE IN SNOWSTAKE FIELD: +1.86 inches Sunrise occurred at 1206UTC on day 21. 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 52.0 51.1 Avg Wnd Spd 13.4 13.1 Avg Press 677.6 677.4 Min T 59.9 60.6 Max Press Fastest Wnd MPH Avg T 56.0 55.6 Min Press Changes to Daily Data: Max Temp Day 1 2 7 16 18 19 20 28 From: 50.1 45.8 45.6 61.3 54.4 45.7 39.0 62.3 To: 46.1 45.0 43.0 58.3 50.0 42.2 38.9 55.0 Min Temp Day 4 10 11 21 22 26 30 From: 54.3 54.2 61.8 49.9 57.3 63.7 59.1 To: 56.0 56.7 66.1 56.1 59.4 65.0 60.0 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 55.0 49.9 47.5 49.2 51.1 53.1 51.8 46.8 50.5 52.7 57.5 65.3 66.9 66.6 65.3 65.3 To: 48.7 49.4 45.5 54.0 50.0 55.7 45.8 49.5 52.4 54.2 63.0 67.0 66.0 67.0 65.1 62.2 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 From: 57.7 57.6 51.5 42.4 44.0 53.4 59.6 58.4 57.1 59.1 64.3 64.0 59.3 56.5 To: 55.3 54.8 44.6 40.0 50.5 56.4 58.5 57.2 56.8 62.6 63.5 60.6 54.0 58.7 Number of NCDC observations per day: 4