LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1964 MONTH OCTOBER ....... ALL TEMPERATURES MINUS C .............. DAY TEMPERATURE C. PCPN AVG WND FASTEST SUN SKY STN WX MAX MIN AVG SPEED MILE SHINE COVER PRESS DIR MPH SPD DIR HRS 01 44.2 51.1 45.5 0 030 23.9 42 030 99.9 0 685.1 02 46.1 52.8 50.1 0 020 23.1 25 020 99.9 0 688.6 03 49.2 54.4 51.5 0 030 16.6 23 030 99.9 0 685.6 04 51.4 55.6 53.3 0 050 14.6 20 040 99.9 0 681.8 05 50.9 56.1 52.6 0 040 18.8 21 030 99.9 0 677.6 06 51.1 55.0 54.2 0 080 14.3 18 040 99.9 0 674.2 07 51.1 55.6 53.2 0 090 17.4 21 070 99.9 0 669.0 08 52.8 55.6 53.9 0 100 13.2 18 100 99.9 0 665.5 09 53.9 62.8 60.8 0 100 7.4 14 100 99.9 0 662.5 10 60.0 63.3 61.9 0 050 12.7 16 030 99.9 5 660.4 11 58.9 61.1 60.4 0 020 11.3 16 020 99.9 4 662.5 12 51.4 58.9 53.9 0 360 2.9 7 340 99.9 1 668.2 13 51.4 56.7 53.1 0 040 4.5 10 050 99.9 6 672.5 14 54.4 57.8 57.0 0 070 9.0 14 080 99.9 2 672.9 15 54.4 58.3 56.8 0 060 13.7 22 040 99.9 0 672.8 16 49.2 53.9 51.2 0 020 20.4 23 030 99.9 2 680.7 17 44.4 49.4 46.7 0 030 21.0 30 030 99.9 6 675.8 18 43.1 47.8 45.8 0 020 16.8 21 020 99.9 6 676.7 19 43.1 55.0 48.8 0 010 8.8 17 010 99.9 6 675.1 20 54.4 57.8 56.1 0 140 7.2 10 150 99.9 2 671.5 21 55.0 57.2 56.1 0 110 8.0 12 100 99.9 0 668.9 22 55.0 57.2 56.1 0 130 5.1 9 130 99.9 1 669.8 23 55.0 56.7 56.0 0 110 5.5 9 100 99.9 1 670.7 24 53.9 55.6 54.9 0 060 8.8 12 230 99.9 1 666.0 25 52.8 56.1 54.4 0 010 16.8 18 010 99.9 4 666.8 26 52.2 54.4 53.4 0 020 10.1 17 020 99.9 2 673.7 27 48.6 52.2 50.3 0 020 10.9 16 020 99.9 6 674.3 28 49.7 53.3 51.7 0 100 8.8 13 080 99.9 2 674.2 29 51.4 53.3 52.5 0 030 12.2 18 020 99.9 0 675.9 30 46.4 51.7 48.7 0 020 14.6 21 020 99.9 4 674.8 31 43.9 47.2 45.7 0 060 10.4 12 070 99.9 3 671.7 AVG 50.9 55.3 53.1 020 12.5 42 030 99.9 2 673.1 1st AVG MONTHLY -53.1 PCPN 0.0 NR DAYS CLEAR 21 HIGHEST -43.1 ON 18th,19th SUNSHINE / % PARTLY CLOUDY 10 LOWEST -63.3 ON 10th CLOUDY 00 HIGH PRESSURE 689.5 ON 2nd LOW PRESSURE 660.0 ON 10th NET CHANGE IN SNOWSTAKE FIELD: +0.35 inches Insufficient Data available for Sunshine Hours Computation. 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 Sky Cover changed to Octas. Station Pressure converted from inches of Hg to millibars. All wind and pressure data taken from original LCD unless otherwise indicated. Changed Extremes: From To Max T -43.3 -43.1 Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 51.1 50.9 Avg Wnd Spd Avg Press 673.2 673.1 Min T 55.2 55.3 Max Press 688.6 689.5 Fastest Wnd MPH Avg T Min Press 660.4 660.0 Changes to Daily Data: Max Temp Day 1 3 4 5 12 13 16 18 19 21 27 28 29 30 From: 44.4 49.4 51.7 51.1 51.7 51.7 49.4 43.3 43.3 55.6 48.9 50.0 51.7 46.7 To: 44.2 49.2 51.4 50.9 51.4 51.4 49.2 43.1 43.1 55.0 48.6 49.7 51.4 46.4 Min Temp Day 6 7 From: 54.4 54.4 To: 55.0 55.6 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 From: 47.8 49.4 52.8 53.9 53.9 52.8 52.8 55.6 58.3 61.7 58.9 55.6 54.4 To: 45.5 50.1 51.5 53.3 52.6 54.2 53.2 53.9 60.8 61.9 60.4 53.9 53.1 Day 14 15 16 17 18 19 21 23 24 26 27 29 30 31 From: 56.1 56.7 51.7 47.2 45.6 49.4 56.7 56.1 55.0 53.3 50.6 52.8 49.4 45.6 To: 57.0 56.8 51.2 46.7 45.8 48.8 56.1 56.0 54.9 53.4 50.3 52.5 48.7 45.7 Fast MPH Day 3 28 From: 22 12 To: 23 13 Avg Press Day 6 21 24 25 30 From: 673.4 670.2 668.5 668.2 675.9 To: 674.2 668.9 666.0 666.8 674.8 Number of NCDC observations per day: 8