***Corrected Winter 2011*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1973 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 57.0 61.1 58.2 0 030 16.7 23 030 0.0 2 678.4 BS 2 57.2 63.9 61.9 0 030 16.0 22 030 0.0 2 677.0 BS 3 52.8 63.9 56.0 0 010 19.4 28 010 0.0 7 674.6 BS 4 46.4 59.4 51.2 0 350 18.0 28 360 0.0 8 680.7 BS 5 42.5 51.1 45.5 0 340 13.7 25 330 0.0 8 686.5 BS 6 42.2 51.1 47.9 0 010 10.8 18 320 0.0 8 689.2 7 45.6 51.7 49.8 T 020 10.6 16 020 0.0 7 690.2 IC 8 47.5 51.4 49.5 T 020 11.0 15 020 0.0 8 684.6 IC 9 47.8 61.1 56.8 T 040 16.9 24 040 0.0 6 681.2 IC 10 45.9 60.6 47.5 0 030 19.1 28 030 0.0 8 684.3 BS 11 46.1 50.0 47.6 0 030 14.8 24 030 0.0 4 685.2 BS 12 46.1 64.2 57.9 0 120 10.9 17 030 0.0 2 674.5 13 58.3 71.4 69.0 0 110 9.7 16 110 0.0 2 668.6 14 62.5 72.2 66.1 0 030 14.9 23 030 0.0 2 668.5 15 56.4 66.1 59.0 0 030 15.0 22 030 0.0 4 671.5 16 53.1 58.3 55.5 T 030 13.1 21 030 0.0 8 678.7 IC 17 47.0 57.2 48.6 T 360 9.5 21 010 0.0 8 683.1 IC 18 45.3 49.7 47.7 T 050 9.7 16 360 0.0 8 688.9 IC 19 45.6 56.4 53.0 T 050 8.8 18 040 0.0 8 687.6 IC 20 51.4 61.4 56.7 0 120 11.1 16 140 0.0 3 680.6 21 56.1 68.6 66.0 0 110 11.7 17 120 0.0 1 677.4 IF 22 65.8 68.9 67.7 0 060 13.6 17 050 24.0 0 675.1 23 63.1 68.3 64.6 0 060 10.9 19 050 24.0 5 672.5 24 60.8 66.1 62.8 0 040 12.2 21 060 18.1 8 672.1 25 57.5 65.6 60.8 0 020 21.5 26 030 0.0 7 670.4 BS 26 57.5 68.1 61.7 0 030 14.1 26 020 20.1 1 666.5 BS 27 57.5 70.6 62.9 0 120 5.3 14 050 24.0 2 666.8 28 57.8 69.7 68.7 0 140 12.9 22 130 24.0 0 663.6 IF 29 68.1 70.8 69.2 0 110 10.2 18 120 24.0 0 666.6 30 65.6 71.1 67.2 T 070 10.0 16 060 24.0 2 669.9 IC AVG 53.6 62.3 57.9 T 030 13.1 28 030 18.3 5 677.1 3rd,4th,10th AVG MONTHLY -57.9 PCPN TRACE NR DAYS CLEAR 12 HIGHEST -42.2 ON 6th SUNSHINE 182.2/ 76% PARTLY CLOUDY 05 LOWEST -72.2 ON 14th CLOUDY 13 HIGH PRESSURE 691.2 ON 7th LOW PRESSURE 662.7 ON 29th NET CHANGE IN SNOWSTAKE FIELD: M SNOWSTAKE DATA NOT AVAILABLE. Sunrise occurred at 0111UTC 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 54.7 53.6 Avg Wnd Spd 13.9 13.1 Avg Press 676.9 677.1 Min T 61.6 62.3 Max Press 691.0 691.2 Fastest Wnd MPH Avg T 58.2 57.9 Min Press Changes to Daily Data: Max Temp Day 1 4 5 8 10 14 15 16 17 18 20 22 23 24 25 26 From: 57.8 50.6 45.0 48.3 46.7 66.1 63.9 55.6 47.8 45.6 51.7 66.7 64.4 61.1 61.7 58.9 To: 57.0 46.4 42.5 47.5 45.9 62.5 56.4 53.1 47.0 45.3 51.4 65.8 63.1 60.8 57.5 57.5 Day 27 29 From: 60.0 68.3 To: 57.5 68.1 Min Temp Day 8 12 13 18 19 20 21 26 28 29 From: 51.1 59.4 70.0 49.4 53.9 57.8 66.7 61.7 69.4 70.6 To: 51.4 64.2 71.4 49.7 56.4 61.4 68.6 68.1 69.7 70.8 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 59.4 60.6 58.3 55.0 48.1 46.7 48.6 49.7 54.4 53.6 48.1 52.8 64.2 69.2 65.0 56.9 To: 58.2 61.9 56.0 51.2 45.5 47.9 49.8 49.5 56.8 47.5 47.6 57.9 69.0 66.1 59.0 55.5 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 From: 52.5 47.5 49.7 54.7 61.4 67.8 66.4 63.6 63.6 60.3 65.3 63.6 69.4 68.3 To: 48.6 47.7 53.0 56.7 66.0 67.7 64.6 62.8 60.8 61.7 62.9 68.7 69.2 67.2 Number of NCDC observations per day: 24