***Corrected Winter 2011*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1977 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 63.3 70.0 65.7 T 100 6.3 12 120 0.0 2 668.2 2 63.3 72.2 71.0 T 050 4.6 9 110 0.0 0 668.7 3 60.5 72.8 63.1 T 020 11.2 18 020 0.0 7 670.4 4 54.9 65.0 59.9 T 060 2.3 17 360 0.0 8 671.3 5 52.8 63.3 56.9 T 140 4.3 7 060 0.0 6 663.1 6 53.3 71.6 67.4 T 100 11.2 15 110 0.0 0 656.3 7 65.0 71.7 68.5 T 070 7.5 15 080 0.0 1 658.0 8 66.0 71.1 68.2 T 060 5.8 11 060 0.0 3 663.5 9 57.2 70.6 60.2 T 030 11.0 17 030 0.0 5 665.9 10 56.1 66.0 62.8 T 050 4.0 19 030 0.0 2 669.7 11 61.1 68.9 66.0 T 060 6.1 9 060 0.0 2 676.5 12 54.4 68.9 55.2 T 020 12.1 15 010 0.0 7 675.7 13 53.3 64.4 58.7 T 050 5.1 15 010 0.0 6 678.0 14 55.6 63.9 61.7 T 070 6.1 9 030 0.0 5 675.8 15 59.9 63.9 62.1 T 010 11.2 19 030 0.0 5 671.4 16 53.3 63.3 56.6 T 360 11.2 18 010 0.0 6 669.4 17 53.3 67.7 65.9 T 090 8.9 13 010 0.0 0 668.0 18 64.4 72.7 71.6 T 060 7.5 11 070 0.0 1 663.3 19 63.3 73.9 65.9 T 040 8.9 11 040 0.0 4 662.6 20 58.3 67.8 60.9 T 010 11.8 14 040 0.0 4 660.4 21 47.7 62.2 53.0 T 360 15.2 20 010 M 6 666.0 22 46.1 54.4 48.7 T 010 13.3 23 360 M 7 667.8 23 46.7 58.8 55.9 T 030 11.5 24 360 M 6 661.9 24 53.9 66.6 62.6 T 030 8.1 23 010 M 2 661.0 25 61.7 68.9 65.8 T 050 6.7 13 040 M 1 659.5 26 61.6 67.8 63.2 T 040 9.2 14 030 M 0 663.6 27 59.4 65.6 62.0 T 070 10.6 24 030 M 0 661.2 28 58.3 65.0 61.2 T 020 12.4 15 060 M 4 656.8 29 56.7 63.3 59.4 T 010 16.4 22 010 M 6 663.6 30 58.9 64.9 63.4 0 010 12.7 19 360 M 6 668.0 AVG 57.3 66.9 62.1 T 010 9.1 24 030 M 4 666.2 23rd,27th AVG MONTHLY -62.1 PCPN TRACE NR DAYS CLEAR 12 HIGHEST -46.1 ON 22nd SUNSHINE M PARTLY CLOUDY 14 LOWEST -73.9 ON 19th CLOUDY 04 HIGH PRESSURE 678.3 ON 13th LOW PRESSURE 655.3 ON 6th NET CHANGE IN SNOWSTAKE FIELD: M SNOWSTAKE DATA NOT AVAILABLE. SUNSHINE DATA NOT AVAILABLE. Sunrise occurred at 0018UTC 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 Extremes: From To Max T Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 58.4 57.3 Avg Wnd Spd 9.0 9.1 Avg Press Min T 66.2 66.9 Max Press 677.9 678.3 Fastest Wnd MPH Avg T 62.3 62.1 Min Press 655.9 655.3 Changes to Daily Data: Max Temp Day 3 4 8 9 12 15 16 19 20 21 26 28 From: 64.4 60.6 66.1 60.0 55.0 60.6 56.1 66.1 61.7 54.4 61.7 60.6 To: 60.5 54.9 66.0 57.2 54.4 59.9 53.3 63.3 58.3 47.7 61.6 58.3 Min Temp Day 5 6 10 17 18 23 24 30 From: 61.7 65.6 62.8 66.7 72.2 55.6 62.2 62.8 To: 63.3 71.6 66.0 67.7 72.7 58.8 66.6 64.9 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 66.7 67.8 68.6 62.8 57.2 59.4 68.3 68.6 65.3 59.4 65.0 61.9 58.9 59.7 62.2 59.7 To: 65.7 71.0 63.1 59.9 56.9 67.4 68.5 68.2 60.2 62.8 66.0 55.2 58.7 61.7 62.1 56.6 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 From: 60.0 68.3 70.0 64.7 58.3 50.3 51.1 58.1 65.3 64.7 62.5 62.8 60.0 60.8 To: 65.9 71.6 65.9 60.9 53.0 48.7 55.9 62.6 65.8 63.2 62.0 61.2 59.4 63.4 Number of NCDC observations per day: 4