LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1967 MONTH APRIL ....... 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 48.9 60.6 55.6 0 030 11.2 23 010 0.0 6 682.7 BS 02 57.2 60.0 58.6 0 030 13.4 18 020 0.0 5 686.6 03 49.7 60.0 52.3 0 030 4.8 13 030 0.0 8 690.0 IF 04 38.3 51.1 43.9 T 150 5.9 12 150 0.0 7 680.8 SG IC 05 44.4 61.7 58.7 T 090 7.2 12 150 0.0 4 670.9 IC 06 61.7 68.3 67.1 0 090 8.6 12 090 0.0 5 665.8 07 63.3 69.4 66.5 0 070 12.5 14 040 0.0 4 663.1 BS 08 62.2 66.7 64.6 0 030 14.1 17 030 0.0 1 666.7 BS 09 60.0 66.1 61.5 0 020 15.8 22 010 0.0 5 672.4 BS 10 61.1 65.6 62.3 0 040 11.8 17 020 0.0 4 673.8 BS 11 56.1 61.1 57.6 0 040 11.6 15 040 0.0 4 674.6 12 54.4 61.7 58.6 0 060 11.0 14 060 0.0 3 676.9 13 52.2 66.7 60.5 0 100 9.1 13 090 0.0 3 676.3 14 51.7 69.4 61.7 T 100 7.3 12 090 0.0 2 680.6 IC 15 56.7 66.7 61.0 T 120 10.2 20 120 0.0 1 681.3 BS IC 16 58.9 67.2 63.6 0 100 16.2 22 120 0.0 0 678.2 BS 17 59.4 63.9 61.2 0 070 16.6 20 050 0.0 0 680.1 BS 18 57.2 63.3 58.9 0 060 16.4 18 050 0.0 2 678.1 BS 19 61.7 67.2 64.3 0 090 14.8 16 080 0.0 1 678.2 BS 20 66.7 71.1 68.6 0 080 13.0 16 060 0.0 1 683.9 21 53.9 67.8 60.0 0 060 14.2 17 020 0.0 2 686.2 BS 22 42.5 56.1 46.7 0 010 14.2 17 020 0.0 7 685.6 BS 23 39.2 43.3 41.3 0 010 21.4 30 360 0.0 8 684.7 BS 24 37.2 53.9 48.9 0 360 26.1 31 350 0.0 8 679.5 BS 25 41.1 52.2 48.2 0 020 22.2 27 360 0.0 5 676.4 BS 26 48.3 54.4 52.3 0 030 19.1 28 030 0.0 6 680.1 BS 27 53.3 57.8 55.4 0 050 15.5 20 030 0.0 7 682.9 BS 28 57.8 62.8 60.5 0 060 14.0 18 040 0.0 3 681.9 BS 29 51.7 61.1 55.2 0 040 19.7 24 040 0.0 8 680.3 BS 30 56.1 61.1 58.8 0 020 19.3 24 030 0.0 4 676.4 BS AVG 53.4 61.9 57.8 030 13.9 31 350 0.0 4 678.5 24th AVG MONTHLY -57.8 PCPN TRACE NR DAYS CLEAR 09 HIGHEST -37.2 ON 24th SUNSHINE 0.0/000% PARTLY CLOUDY 14 LOWEST -71.1 ON 20th CLOUDY 07 HIGH PRESSURE 691.2 ON 3rd LOW PRESSURE 662.4 ON 7th NET CHANGE IN SNOWSTAKE FIELD: +1.05 inches 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. All wind and pressure data taken from original LCD unless otherwise indicated. Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 53.8 53.4 Avg Wnd Spd Avg Press Min T 61.4 61.9 Max Press Fastest Wnd MPH Avg T 57.6 57.8 Min Press Changes to Daily Data: Max Temp Day 3 14 22 23 From: 50.0 62.2 42.8 39.4 To: 49.7 51.7 42.5 39.2 Min Temp Day 16 24 From: 65.0 41.1 To: 67.2 53.9 Avg Temp Day 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 54.7 55.0 44.7 53.1 65.0 66.4 64.4 63.1 63.3 58.6 58.1 59.4 65.8 61.7 61.9 To: 55.6 52.3 43.9 58.7 67.1 66.5 64.6 61.5 62.3 57.6 58.6 60.5 61.7 61.0 63.6 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 From: 61.7 60.3 64.4 68.9 60.8 49.4 41.4 39.2 46.7 51.4 55.6 60.3 56.4 58.6 To: 59.4 58.9 64.3 68.6 60.0 46.7 41.3 48.9 48.2 52.3 55.4 60.5 55.2 58.8 Fast MPH Day 9 From: 18 To: 22 Number of NCDC observations per day: 4