LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1959 MONTH MARCH ....... 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 48.6 51.1 50.0 T 020 10.5 14 020 99.9 6 682.2 02 49.2 54.4 51.4 T 360 5.6 13 360 99.9 4 682.7 03 51.4 55.6 53.6 T 140 12.1 18 140 99.9 3 684.3 04 53.6 58.3 56.1 T 110 12.0 17 110 99.9 0 679.2 05 56.4 58.3 57.2 T 090 11.6 16 090 99.9 0 679.7 06 55.9 57.8 56.6 T 090 12.2 17 090 99.9 0 685.1 07 50.9 56.7 54.3 T 090 16.1 20 090 99.9 1 682.3 08 50.3 53.9 52.1 T 050 15.5 20 050 99.9 1 679.6 09 44.8 52.2 47.2 T 020 17.3 24 020 99.9 6 676.4 10 46.4 52.2 50.3 T 050 15.4 22 050 99.9 3 674.4 11 49.7 52.2 51.1 T 020 18.9 23 020 99.9 2 678.8 12 49.7 54.4 52.0 T 070 16.6 22 070 99.9 6 675.4 13 50.3 54.4 52.6 0 020 20.3 24 020 99.9 6 676.9 14 52.0 57.8 54.5 0 050 19.1 22 020 99.9 5 680.7 15 54.7 60.0 56.3 0 070 13.7 21 050 99.9 6 686.8 16 53.1 56.7 55.2 T 090 17.3 21 070 99.9 1 681.6 17 52.5 58.9 55.2 T 050 12.4 17 020 99.9 6 681.6 18 52.0 57.2 53.7 0 020 15.5 22 020 99.9 5 681.4 19 48.6 53.9 51.5 0 020 18.2 23 020 99.9 5 685.8 20 45.9 51.7 49.7 0 020 18.6 24 050 99.9 5 685.6 BS 21 48.1 56.1 53.1 0 050 18.3 23 020 99.9 1 677.5 BS 22 53.6 57.8 56.1 0 090 15.8 21 070 99.9 2 674.4 23 49.2 55.6 51.8 0 020 18.6 25 050 0.0 6 674.2 BS 24 48.1 52.2 50.2 0 020 19.9 24 020 0.0 6 674.7 BS 25 52.0 55.6 53.8 0 020 16.9 21 020 0.0 6 679.9 BS 26 55.3 60.6 57.1 0 020 13.2 18 020 0.0 2 682.5 27 57.0 63.9 59.6 0 110 13.5 18 090 0.0 1 680.5 28 63.3 65.6 64.5 0 070 8.0 14 070 0.0 1 680.0 29 57.5 65.0 60.2 0 050 11.7 15 050 0.0 5 682.4 30 58.1 66.1 61.9 T 070 10.2 11 050 0.0 5 682.0 31 57.0 66.1 61.5 0 020 15.8 23 020 0.0 3 680.6 AVG 52.1 57.2 54.5 020 14.9 25 050 99.9 4 680.3 23rd AVG MONTHLY -54.5 PCPN TRACE NR DAYS CLEAR 12 HIGHEST -44.8 ON 9th SUNSHINE 0.0/ 0% PARTLY CLOUDY 19 LOWEST -66.1 ON 30th,31th CLOUDY 00 HIGH PRESSURE 688.5 ON 19th LOW PRESSURE 672.9 ON 23rd NET CHANGE IN SNOWSTAKE FIELD: 9.99 SNOWSTAKE DATA NOT AVAILABLE. SUNSHINE 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 data taken from NCDC data. No data on original LCD. All wind and pressure data taken from original LCD unless otherwise indicated. Prevailing and peak wind direction converted from cardinal direction to degrees. Changed Extremes: From To Max T -45.0 -44.8 Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 52.4 52.1 Avg Wnd Spd Avg Press 680.4 680.3 Min T Max Press Fastest Wnd MPH Avg T 54.8 54.5 Min Press 673.2 672.9 Changes to Daily Data: Max Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 From: 48.9 49.4 51.7 53.9 56.7 56.1 51.1 50.6 45.0 46.7 50.0 50.0 50.6 52.2 55.0 To: 48.6 49.2 51.4 53.6 56.4 55.9 50.9 50.3 44.8 46.4 49.7 49.7 50.3 52.0 54.7 Day 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 53.3 52.8 52.2 48.9 48.9 48.3 53.9 49.4 48.3 52.2 55.0 57.2 63.3 57.8 58.3 57.2 To: 53.1 52.5 52.0 48.6 45.9 48.1 53.6 49.2 48.1 52.0 55.3 57.0 63.3 57.5 58.1 57.0 Min Temp No Daily Changes Avg Temp Day 2 5 6 7 8 9 10 12 13 14 15 16 17 From: 51.9 57.5 56.9 53.9 52.2 48.6 49.4 52.2 52.5 55.0 57.5 55.0 55.8 To: 51.4 57.2 56.6 54.3 52.1 47.2 50.3 52.0 52.6 54.5 56.3 55.2 55.2 Day 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 54.7 51.4 50.3 52.2 55.8 52.5 50.3 53.9 57.8 60.6 64.4 61.4 62.2 61.7 To: 53.7 51.5 49.7 53.1 56.1 51.8 50.2 53.8 57.1 59.6 54.5 60.2 61.9 61.5 Fast MPH Day 31 From: 21 To: 23 Number of NCDC observations per day: 24