***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1965 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 39.2 41.1 39.9 0 090 9.5 13 090 24.0 1 693.8 02 38.6 40.6 39.0 0 080 9.4 13 090 24.0 0 694.1 03 29.4 39.4 36.1 T 010 10.7 17 010 17.8 3 695.4 IF 04 30.9 34.4 32.7 T 030 15.8 24 010 7.3 7 695.8 IF 05 28.1 31.7 29.3 T 360 15.7 24 360 11.3 7 695.7 IF 06 26.1 28.9 26.8 T 360 19.5 30 360 11.5 7 696.9 IF+,BS 07 26.1 33.9 31.9 0 360 12.5 24 350 19.3 4 698.8 IF,BS 08 32.5 35.0 33.5 0 360 12.5 16 010 17.7 6 699.4 09 32.8 35.6 34.7 0 010 11.8 15 020 22.0 3 696.8 10 33.7 35.6 34.8 T 020 11.5 16 350 14.3 7 694.9 IF 11 33.9 36.1 35.4 T 350 14.9 20 350 6.3 8 695.5 IF 12 35.3 39.4 37.4 T 010 14.6 21 360 14.3 6 690.2 IF 13 38.6 40.6 39.6 T 010 14.3 18 010 22.6 2 688.8 IF 14 39.2 41.7 40.2 0 010 14.1 21 020 24.0 2 698.9 IF 15 41.1 43.3 42.3 0 080 12.7 16 060 24.0 0 703.3 16 41.1 43.3 42.1 0 070 10.5 18 050 24.0 2 704.2 17 32.2 42.8 36.8 T 020 14.2 21 010 12.3 5 703.3 IF 18 38.9 43.3 42.0 0 050 11.1 16 050 21.5 0 699.2 IF 19 39.8 42.8 41.3 0 020 10.7 15 010 17.0 3 694.5 IF 20 40.6 44.4 42.1 0 050 11.4 17 050 9.8 5 691.2 IF 21 41.1 46.1 43.6 0 020 13.2 18 040 16.4 5 690.1 22 41.1 45.6 43.3 T 020 15.2 22 030 17.3 6 689.2 IF 23 42.2 46.7 44.3 T 040 11.7 20 020 18.4 4 689.5 24 46.7 50.6 49.1 0 060 7.9 14 060 20.2 2 689.2 25 49.4 51.7 50.4 0 060 12.5 18 070 24.0 0 690.8 26 47.2 51.1 49.1 0 050 15.4 21 050 24.0 0 693.0 27 48.9 52.2 50.3 0 060 12.5 20 050 24.0 1 697.8 28 47.2 52.8 49.5 0 090 15.0 23 050 24.0 0 697.3 AVG 37.9 41.8 39.9 T 010 12.9 30 360 18.3 3 695.3 6th AVG MONTHLY -39.9 PCPN TRACE NR DAYS CLEAR 12 HIGHEST -26.1 ON 6th,7th SUNSHINE 513.3/ 76% PARTLY CLOUDY 11 LOWEST -52.8 ON 28th CLOUDY 05 HIGH PRESSURE 705.0 ON 16th LOW PRESSURE 686.8 ON 13th NET CHANGE IN SNOWSTAKE FIELD: M 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 converted from inches of Hg to millibars. Prevailing wind direction taken from NCDC data. No data on original LCD. 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 38.0 37.9 Avg Wnd Spd 12.8 12.9 Avg Press Min T Max Press Fastest Wnd MPH Avg T Min Press Changes to Daily Data: Max Temp Day 1 2 4 5 8 10 12 13 14 19 From: 39.4 38.9 31.1 28.3 32.8 33.9 35.6 38.9 39.4 40.0 To: 39.2 38.6 30.9 28.1 32.5 33.7 35.3 38.6 39.2 39.8 Min Temp No Daily Changes Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 From: 40.6 40.0 34.4 32.8 30.0 27.8 30.0 33.9 34.4 35.0 35.0 37.8 40.0 40.6 To: 39.9 39.0 36.1 32.7 29.3 26.8 31.9 33.5 34.7 34.8 35.4 37.4 39.6 40.2 Day 15 16 17 18 19 20 21 22 23 24 25 26 27 28 From: 42.2 42.2 37.8 41.1 41.7 42.8 43.9 43.3 44.4 48.9 50.6 49.4 50.6 50.0 To: 42.3 42.1 36.8 42.0 41.3 42.1 43.6 43.3 44.3 49.1 50.4 49.1 50.3 49.5 Avg MPH Day 4 10 15 28 From: 16.6 10.6 11.1 13.8 To: 15.8 11.5 12.7 15.0 Number of NCDC observations per day: 8