LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1968 MONTH MAY ....... 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 58.3 65.6 63.2 0 060 8.9 12 060 0.0 0 687.4 02 63.9 66.1 64.6 0 070 10.9 14 080 0.0 1 690.4 03 63.3 66.1 65.1 0 090 9.5 13 020 0.0 0 693.3 04 60.0 64.4 61.8 0 090 14.4 18 090 0.0 1 691.3 05 61.7 66.1 64.2 0 090 13.3 17 090 0.0 0 690.0 06 63.9 68.9 66.6 0 050 12.3 16 040 0.0 0 699.1 07 56.7 66.1 60.4 0 120 9.8 16 120 0.0 0 690.3 08 58.3 63.3 61.4 0 020 14.4 21 010 0.0 0 693.8 09 49.7 61.7 54.5 0 350 19.3 25 350 0.0 1 698.4 BS 10 49.4 57.2 53.4 0 020 10.7 16 360 0.0 6 700.0 BS 11 53.9 58.3 55.8 0 080 14.4 15 070 0.0 0 692.8 12 44.2 53.3 47.8 0 020 12.1 15 020 0.0 8 684.3 13 49.4 60.6 58.9 0 080 8.6 10 060 0.0 2 682.3 14 53.3 60.0 57.2 0 080 11.7 19 010 0.0 2 680.4 15 48.3 58.3 55.5 0 350 16.1 18 350 0.0 5 681.3 16 47.8 58.3 50.2 T 340 4.3 16 350 0.0 8 686.7 SG,IC 17 44.8 56.1 49.5 T 130 7.2 13 110 0.0 4 684.0 SG,IC 18 48.3 66.1 61.9 0 100 13.2 16 100 0.0 8 675.9 19 66.1 71.1 69.4 0 080 8.6 12 090 0.0 8 675.2 20 63.3 71.1 68.3 0 030 9.2 13 360 0.0 3 683.8 21 54.4 63.3 58.2 0 350 17.8 24 350 0.0 6 692.0 BS 22 52.2 54.4 53.1 0 350 16.1 19 350 0.0 4 693.1 BS 23 52.8 67.2 59.8 0 070 9.8 18 040 0.0 1 679.9 24 63.9 67.8 65.0 0 010 11.2 18 350 0.0 0 676.1 25 61.7 67.2 64.3 0 010 8.7 17 360 0.0 1 684.2 26 59.4 68.3 64.1 0 090 8.0 12 010 0.0 0 683.9 27 55.6 58.9 57.4 0 010 13.8 18 010 0.0 1 679.1 28 50.9 57.2 54.0 0 360 17.2 28 360 0.0 8 675.9 BS 29 50.6 61.7 57.8 0 030 20.4 28 360 0.0 2 668.9 BS 30 57.2 61.7 58.7 0 360 20.2 24 360 0.0 2 675.3 BS 31 52.2 56.7 53.9 0 360 19.2 23 360 0.0 0 681.0 AVG 55.3 62.7 59.2 350 12.6 28 360 0.0 3 685.5 28th,29th AVG MONTHLY -59.2 PCPN TRACE NR DAYS CLEAR 20 HIGHEST -44.2 ON 12th SUNSHINE 0.0/ % PARTLY CLOUDY 06 LOWEST -71.1 ON 19th,20th CLOUDY 05 HIGH PRESSURE 700.3 ON 6th LOW PRESSURE 666.3 ON 29th NET CHANGE IN SNOWSTAKE FIELD: 9.99 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 Sky Cover changed to Octas. Station Pressure taken from NCDC data. Data rounded to whole mb on original LCD. Average wind speed taken from NCDC data. Data rounded to whole MPH on original LCD. All wind and pressure data taken from original LCD unless otherwise indicated. Changed Extremes: From To Max T -44.4 -44.2 Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 55.4 55.3 Avg Wnd Spd Avg Press Min T Max Press 700.2 700.3 Fastest Wnd MPH Avg T 59.0 59.2 Min Press Changes to Daily Data: Max Temp Day 2 9 12 17 28 From: 64.4 50.0 44.4 45.0 51.1 To: 63.9 49.7 44.2 44.8 50.9 Min Temp No Daily Changes Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 61.9 65.3 64.7 62.2 63.9 66.4 61.4 60.8 55.8 53.3 56.1 48.9 55.0 56.7 53.3 53.1 To: 63.2 64.6 65.1 61.8 64.2 66.6 60.4 61.4 54.5 53.4 55.8 47.8 58.9 57.2 55.5 50.2 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 50.6 57.2 68.6 67.2 58.9 53.3 60.0 65.8 64.4 63.9 57.2 54.2 56.1 59.4 54.4 To: 49.5 61.9 69.4 68.3 58.2 53.1 59.8 65.0 64.3 64.1 57.4 54.0 57.8 58.7 53.9 Fast MPH Day 14 From: 13 To: 19 Number of NCDC observations per day: 4