***Corrected Winter 2011*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1975 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 63.9 68.3 64.7 0 100 8.1 12 090 0.0 1 689.2 2 63.3 67.5 66.4 0 120 10.0 12 110 0.0 1 690.7 3 65.6 68.3 67.0 0 100 8.1 13 110 0.0 0 690.4 4 64.4 67.8 66.8 0 120 8.6 10 090 0.0 0 690.0 5 64.2 69.7 67.5 0 080 7.7 10 090 0.0 0 690.0 6 58.1 71.1 61.8 0 010 11.5 23 050 0.0 2 684.6 7 53.1 68.9 56.3 0 010 13.3 27 360 0.0 2 690.6 BS 8 53.9 65.3 64.2 0 100 10.3 17 040 0.0 1 695.2 9 60.3 66.1 61.5 0 110 12.1 15 100 0.0 0 691.7 10 58.3 65.0 62.2 0 110 11.2 15 110 0.0 0 686.8 11 58.1 65.6 62.4 0 030 6.0 12 090 0.0 3 689.5 12 53.1 65.6 55.6 T 360 4.6 16 360 0.0 8 690.9 SG 13 49.2 57.8 51.4 T 100 1.4 10 360 0.0 7 691.2 SG 14 46.7 60.3 54.6 T 150 7.5 10 090 0.0 4 685.8 SG 15 50.6 62.5 58.8 0 150 14.7 17 150 0.0 2 677.8 16 55.0 69.2 66.8 0 120 11.5 21 160 0.0 1 678.9 BS 17 64.4 72.2 69.4 0 100 5.2 13 110 0.0 2 677.6 18 65.6 72.2 70.4 0 100 6.9 11 090 0.0 0 673.6 19 67.0 72.2 69.2 0 070 9.5 14 090 0.0 0 672.3 20 66.7 70.0 69.2 0 070 10.1 14 080 0.0 1 670.5 21 68.9 72.2 70.1 T 080 11.9 14 070 0.0 1 664.2 IC 22 63.1 75.0 67.5 0 040 11.5 19 090 0.0 1 663.3 23 61.4 68.3 62.5 0 020 18.7 23 020 0.0 5 668.3 BS 24 59.2 65.0 61.6 0 030 17.8 24 010 0.0 3 669.4 BS 25 53.6 62.8 55.4 0 020 28.2 32 020 0.0 5 664.3 BS 26 53.9 59.4 55.8 0 010 21.0 33 010 0.0 4 666.6 BS 27 52.5 56.1 54.5 0 030 19.9 24 360 0.0 6 666.7 BS 28 48.9 56.7 49.9 0 020 27.3 31 020 0.0 8 661.8 BS 29 49.4 59.2 56.5 0 020 18.3 32 030 0.0 2 666.0 BS 30 55.6 62.8 59.2 0 020 15.8 21 020 0.0 1 661.7 BS 31 55.0 61.7 57.0 0 020 18.1 22 020 0.0 4 659.5 BS AVG 58.2 66.0 61.8 T 020 12.5 33 010 0.0 2 678.0 26th AVG MONTHLY -61.8 PCPN TRACE NR DAYS CLEAR 20 HIGHEST -46.7 ON 14th SUNSHINE 0.0/ 0% PARTLY CLOUDY 08 LOWEST -75.0 ON 22nd CLOUDY 03 HIGH PRESSURE 695.7 ON 9th LOW PRESSURE 658.7 ON 31st 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 Monthly Averages: (All temps are Minus C) From To From To From To Max T 59.1 58.2 Avg Wnd Spd 12.2 12.5 Avg Press 678.4 678.0 Min T 65.5 66.0 Max Press Fastest Wnd MPH Avg T 62.3 61.8 Min Press 658.8 658.7 Changes to Daily Data: Max Temp Day 5 6 7 9 11 12 13 19 22 23 24 25 27 From: 66.7 63.3 53.3 62.2 62.2 53.3 51.7 68.9 68.3 61.7 61.7 54.4 53.9 To: 64.2 58.1 53.1 60.3 58.1 53.1 49.2 67.0 63.1 61.4 59.2 53.6 52.5 Min Temp Day 2 5 8 14 15 16 29 From: 67.2 69.4 63.9 54.4 60.6 67.2 55.6 To: 67.5 69.7 65.3 60.3 62.5 69.2 59.2 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 66.1 65.3 66.9 66.1 68.1 67.2 61.1 58.9 64.2 61.7 63.9 59.4 54.7 50.6 55.6 61.1 To: 64.7 66.4 67.0 66.8 67.5 61.8 56.3 64.2 61.5 62.2 62.4 55.6 51.4 54.6 58.8 66.8 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 68.3 68.9 70.6 68.3 70.6 71.7 65.0 63.3 58.6 56.7 55.0 52.8 52.5 59.2 58.3 To: 69.4 70.4 69.2 69.2 70.1 67.5 62.5 61.6 55.4 55.8 54.5 49.9 56.5 59.2 57.0 Number of NCDC observations per day: 4