***Corrected Winter 2011*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1977 MONTH JULY .... 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 58.3 66.7 62.0 T 030 13.3 17 030 0.0 6 658.8 2 60.0 65.0 62.1 T 030 13.0 19 020 0.0 5 660.0 3 46.1 63.3 49.9 T 010 18.3 25 010 0.0 8 658.8 4 45.0 53.8 50.6 T 010 17.8 27 010 0.0 6 664.4 5 48.9 55.0 52.3 0 010 17.5 25 010 0.0 5 665.9 6 50.6 56.6 55.1 T 010 13.0 24 010 0.0 2 669.7 7 54.4 61.0 59.4 T 040 8.6 20 010 0.0 2 682.9 8 54.4 61.7 57.1 T 100 7.8 12 040 0.0 5 684.3 9 47.2 62.2 55.1 T 040 8.1 13 080 0.0 5 681.8 10 47.2 58.3 55.9 T 020 11.5 17 020 0.0 3 688.6 11 56.1 60.5 59.0 T 040 7.2 15 010 0.0 2 688.5 12 50.5 62.2 53.5 T 360 14.7 18 010 0.0 7 685.8 13 44.4 56.7 45.1 0 360 18.1 23 350 0.0 8 684.8 14 43.5 51.6 46.9 T 010 15.8 29 350 0.0 6 680.0 15 45.0 57.8 54.2 T 030 11.8 25 010 0.0 3 668.2 16 52.2 59.4 57.8 0 020 15.5 24 040 0.0 4 667.4 17 57.7 60.0 58.8 T 030 11.5 20 030 0.0 2 670.5 18 57.8 61.7 59.4 T 040 12.4 17 020 0.0 4 671.4 19 54.9 66.0 59.8 T 070 9.8 23 010 0.0 3 675.1 20 56.7 68.8 68.0 T 100 5.8 15 010 0.0 0 682.8 21 63.8 69.4 64.9 T 120 8.6 11 140 0.0 0 686.2 22 62.2 66.1 62.9 T 100 7.5 13 100 0.0 1 688.0 23 56.7 62.8 59.6 T 100 6.9 11 060 0.0 1 689.4 24 57.2 64.9 63.2 T 040 5.8 10 040 0.0 2 693.4 25 60.5 65.6 61.2 T 060 5.3 11 040 0.0 2 694.9 26 52.2 62.8 57.0 T 100 6.7 9 140 0.0 5 696.9 27 49.4 61.1 54.0 T 130 9.5 13 130 0.0 3 686.1 28 53.3 61.1 56.5 T 070 10.6 15 120 0.0 3 688.0 29 43.8 57.2 48.5 T 020 17.0 22 030 0.0 6 687.1 30 43.3 55.0 49.5 T 020 13.2 30 020 0.0 7 691.7 31 41.7 54.4 44.9 T 030 20.1 29 020 0.0 8 687.6 AVG 52.1 60.9 56.3 T 010 11.7 30 020 0.0 4 680.0 30th AVG MONTHLY -56.3 PCPN TRACE NR DAYS CLEAR 10 HIGHEST -41.7 ON 31st SUNSHINE 0.0 PARTLY CLOUDY 16 LOWEST -69.4 ON 21st CLOUDY 05 HIGH PRESSURE 697.3 ON 26th LOW PRESSURE 657.5 ON 1st NET CHANGE IN SNOWSTAKE FIELD: M SNOWSTAKE DATA NOT AVAILABLE. 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 53.0 52.1 Avg Wnd Spd 11.6 11.7 Avg Press 679.5 680.0 Min T 60.3 60.9 Max Press 697.1 697.3 Fastest Wnd MPH Avg T 56.6 56.3 Min Press Changes to Daily Data: Max Temp Day 3 9 12 17 19 21 25 26 29 From: 51.1 55.0 53.3 57.8 55.0 64.4 60.6 59.4 51.1 To: 46.1 47.2 50.5 57.7 54.9 63.8 60.5 52.2 43.8 Min Temp Day 4 6 7 10 11 14 16 19 20 24 From: 51.7 54.4 60.6 56.7 59.4 45.6 57.8 61.1 68.3 64.4 To: 53.8 56.6 61.0 58.3 60.5 51.6 59.4 66.0 68.8 64.9 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 62.5 62.5 57.2 48.3 51.9 52.5 57.5 58.1 58.6 51.9 57.8 57.8 50.6 43.3 51.4 55.0 To: 62.0 62.1 49.9 50.6 52.3 55.1 59.4 57.1 55.1 55.9 59.0 53.5 45.1 46.9 54.2 57.8 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 58.9 59.7 58.1 62.5 66.9 64.2 59.7 60.8 63.1 61.1 55.3 57.2 54.2 49.2 48.1 To: 58.8 59.4 59.8 68.0 64.9 62.9 59.6 63.2 61.2 57.0 54.0 56.5 48.5 49.5 44.9 Number of NCDC observations per day: 8