***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1964 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 26.4 32.8 29.6 0 100 14.1 18 020 M 4 684.2 02 25.9 35.0 30.1 T 090 15.2 18 110 M 6 686.5 03 29.4 36.1 32.8 0 060 10.3 17 110 M 6 685.6 04 30.9 36.1 33.2 T 080 12.2 14 080 M 6 687.8 05 35.6 38.3 37.5 0 090 10.1 13 110 M 3 691.6 06 37.5 38.9 37.9 0 100 13.1 15 100 M 1 689.6 07 37.8 41.7 39.9 0 120 11.2 15 090 M 0 685.9 08 39.8 42.8 41.7 0 090 9.1 15 090 M 0 687.8 09 40.9 42.8 41.8 0 100 13.1 14 100 M 0 685.5 10 41.4 44.4 42.6 0 100 12.2 14 100 M 0 683.4 11 43.9 45.0 44.4 0 080 7.1 12 080 M 0 687.1 12 44.4 45.6 44.9 0 090 8.2 12 100 M 0 692.3 13 40.3 45.5 42.7 T 080 7.1 8 090 M 4 694.5 14 38.3 41.7 40.3 T 360 9.1 12 360 M 3 691.4 15 40.6 43.9 42.2 0 070 10.1 13 360 M 2 686.0 16 43.1 45.6 44.2 0 080 8.2 13 070 M 4 683.2 17 39.8 47.2 44.4 T 060 3.5 9 060 M 3 685.9 18 39.2 45.6 41.7 0 100 2.3 5 090 M 6 682.0 19 37.0 41.7 39.2 0 340 10.4 16 350 M 8 682.1 20 41.4 45.0 43.8 0 360 13.8 18 350 M 5 686.4 21 39.8 45.6 42.7 0 020 13.8 18 020 M 5 687.2 22 37.8 48.3 45.9 0 070 11.5 14 070 M 0 684.0 23 47.5 48.9 47.8 0 050 14.0 14 050 M 3 683.5 24 44.2 48.9 46.5 0 010 10.0 14 020 M 2 686.4 25 36.1 48.9 43.5 0 070 12.0 18 020 M 1 683.0 26 41.1 49.4 46.6 0 360 6.0 14 080 M 4 685.0 27 45.0 48.9 46.5 T 360 9.0 14 360 M 5 688.2 28 42.0 46.7 43.7 0 360 16.0 23 360 M 6 685.1 29 38.3 44.4 40.8 0 360 13.0 18 360 M 6 683.9 AVG 38.8 43.6 41.3 T 360 10.5 23 360 M 3 686.4 28th AVG MONTHLY -41.3 PCPN TRACE NR DAYS CLEAR 11 HIGHEST -25.9 ON 2nd SUNSHINE M PARTLY CLOUDY 17 LOWEST -49.4 ON 26th CLOUDY 01 HIGH PRESSURE 694.9 ON 13th LOW PRESSURE 678.5 ON 19th NET CHANGE IN SNOWSTAKE FIELD: +/-0.00 inches Insufficient Data available for Sunshine Hours Computation. 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. All wind and pressure data taken from original LCD unless otherwise indicated. Changed Extremes: From To Max T -26.1 -25.9 Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 38.9 38.8 Avg Wnd Spd 10.6 10.5 Avg Press Min T Max Press Fastest Wnd MPH 21.0 23.0 Avg T Min Press Changes to Daily Data: Max Temp Day 1 2 4 6 8 9 10 13 From: 26.7 26.1 31.1 37.8 40.0 41.1 41.7 40.6 To: 26.4 25.9 30.9 37.5 39.8 40.9 41.4 40.3 Day 16 17 18 19 20 21 23 24 28 From: 43.3 40.0 39.4 37.2 41.7 40.0 47.8 44.4 42.2 To: 43.1 39.8 39.2 37.0 41.4 39.8 47.5 44.2 42.0 Min Temp No Daily Changes Avg Temp Day 1 2 4 5 6 7 9 10 12 13 14 16 From: 29.4 30.6 33.9 31.1 38.3 39.4 42.2 42.8 45.0 42.8 40.0 44.4 To: 29.6 30.1 33.2 37.5 37.9 39.9 41.8 42.6 44.9 42.7 40.3 44.2 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 From: 43.9 42.8 39.4 43.3 42.8 40.0 48.3 46.7 42.8 45.0 47.2 44.4 41.1 To: 44.4 41.7 39.2 43.8 42.7 45.9 47.8 46.5 43.5 46.6 46.5 43.7 40.8 Fast MPH Day 5 10 28 From: 13 14 21 To: 14 15 23 Number of NCDC observations per day: 8