LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1959 MONTH FEBRUARY ....... 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 32.0 39.4 36.4 T 360 7.0 11 050 99.9 4 684.3 02 35.9 40.6 38.7 T 050 9.0 12 070 99.9 3 683.3 03 39.8 41.1 40.1 0 090 11.0 15 110 99.9 0 682.1 04 39.8 41.1 40.3 0 090 10.6 17 110 99.9 0 683.1 05 38.6 41.1 39.4 0 110 14.3 21 090 99.9 0 686.6 06 34.8 40.0 36.7 T 070 19.2 24 070 99.9 0 690.0 07 34.2 38.9 35.7 T 020 15.5 18 020 99.9 4 688.5 08 38.6 40.6 39.6 0 070 12.7 16 070 99.9 2 682.9 09 39.2 41.7 40.3 T 050 10.4 14 050 99.9 4 682.4 10 36.4 42.2 38.7 T 020 10.0 15 110 99.9 8 683.5 11 41.4 44.4 42.7 0 090 13.1 17 090 99.9 1 677.7 12 40.9 45.0 42.9 T 050 13.4 20 020 99.9 4 677.7 13 42.0 44.4 43.0 T 050 13.4 18 050 99.9 2 683.3 14 39.2 44.4 41.8 T 050 15.7 28 050 99.9 6 685.9 15 38.6 43.3 41.7 T 070 17.0 25 050 99.9 5 679.7 16 32.0 43.9 40.3 T 050 14.0 20 050 99.9 6 678.3 17 29.8 35.6 33.2 0 020 20.3 29 020 99.9 8 678.5 18 24.2 31.1 27.6 0 360 25.2 40 360 99.9 8 673.3 BS 19 25.3 30.6 27.1 0 360 29.4 43 360 99.9 8 677.1 BS 20 30.3 36.1 33.5 0 020 22.8 30 020 99.9 8 683.3 BS 21 34.8 40.0 37.0 T 050 19.4 27 050 99.9 6 681.6 BS 22 34.8 41.1 37.8 T 050 21.5 28 020 99.9 8 677.9 BS 23 32.5 38.9 34.1 T 360 24.2 33 360 99.9 8 674.6 BS 24 40.3 46.7 43.6 T 360 9.9 17 320 99.9 5 677.0 25 44.2 47.8 45.7 T 360 6.9 10 360 99.9 7 679.7 26 45.9 50.6 48.6 T 050 9.0 13 020 99.9 4 681.8 27 48.1 52.2 50.3 T 050 9.0 14 020 99.9 2 681.4 28 47.5 52.2 49.5 T 050 10.4 18 050 99.9 5 683.0 AVG 37.2 42.0 39.5 050 14.8 43 360 99.9 5 681.4 19th AVG MONTHLY -39.5 PCPN TRACE NR DAYS CLEAR 08 HIGHEST -24.2 ON 18th SUNSHINE 0.0/ 00% PARTLY CLOUDY 12 LOWEST -52.2 ON 27th,28th CLOUDY 08 HIGH PRESSURE 690.8 ON 6th,7th LOW PRESSURE 671.5 ON 18th 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 -24.4 -24.2 Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 37.4 37.2 Avg Wnd Spd Avg Press Min T 41.9 42.0 Max Press 691.2 690.8 Fastest Wnd MPH Avg T 39.7 39.5 Min Press 671.6 671.5 Changes to Daily Data: Max Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 From: 32.2 36.1 40.0 40.0 38.9 35.0 34.4 38.9 39.4 36.7 41.7 41.1 42.2 39.4 To: 32.0 35.9 39.8 39.8 38.6 34.8 34.2 38.6 39.2 36.4 41.4 40.9 42.0 39.2 Day 15 16 17 18 19 20 21 22 23 24 25 26 27 28 From: 38.9 32.2 30.0 24.4 25.6 30.6 35.0 35.0 32.8 41.1 44.4 46.7 48.3 47.8 To: 38.6 32.0 29.8 24.2 25.3 30.3 34.8 34.8 32.5 40.3 44.2 46.4 48.0 47.5 Min Temp No Daily Changes Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 From: 35.8 38.3 40.6 40.6 40.0 37.5 36.7 39.7 40.6 39.4 43.1 43.1 43.3 41.9 To: 36.4 38.7 40.1 40.3 39.4 36.7 35.7 39.6 40.3 38.7 42.7 42.9 43.0 41.8 Day 15 16 17 18 19 20 21 22 23 24 25 28 From: 41.1 38.1 32.8 27.8 28.1 33.3 37.5 38.1 35.8 43.9 46.1 50.0 To: 41.7 40.3 33.2 27.6 27.1 33.5 37.0 37.8 34.1 43.6 45.7 49.5 Fast MPH Day 28 From: 14 To: 18 Number of NCDC observations per day: 24