***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1968 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 23.7 31.7 28.4 T 360 16.9 23 360 14.2 8 688.2 IC,IF,BS 02 29.8 32.8 31.0 T 350 14.5 22 350 13.4 8 689.0 -SG,IF,BS 03 29.8 33.9 31.2 T 360 13.4 16 360 7.5 8 689.5 -SG,IF,IC,BS 04 31.4 36.7 34.1 T 060 11.8 14 020 23.0 5 685.0 -SG,IC,IF,BS 05 32.5 37.2 34.7 T 010 13.1 15 030 19.5 6 685.1 -SG,IC 06 26.7 33.9 30.9 T 010 9.5 14 010 18.0 8 692.0 -SG,IC,IF,BS 07 30.0 36.1 32.6 T 020 11.4 17 020 17.4 5 689.0 -SG,IC 08 28.3 30.6 29.1 T 320 6.7 12 320 2.0 8 691.0 -SG,IF 09 28.7 37.2 32.6 T 090 7.0 16 070 9.4 3 696.0 -SG,IC,IF 10 30.6 38.3 36.9 T 090 11.2 14 070 24.0 2 698.1 IC 11 30.3 37.2 34.2 T 060 13.8 21 030 10.8 7 697.0 -SG,IC,IF,BS 12 30.0 41.1 37.9 T 080 13.1 15 070 17.4 2 696.6 -SG,IC,BS 13 37.8 41.1 40.0 0 080 13.3 16 080 22.8 1 689.8 14 34.2 42.2 37.7 T 010 11.5 15 040 19.3 7 688.0 SG- 15 37.5 43.3 40.8 T 040 15.9 21 010 18.2 6 689.4 IC,IF 16 39.2 42.2 40.0 T 050 12.7 21 010 20.2 6 687.9 IC,IF,BS 17 41.7 43.3 42.2 T 040 14.3 20 020 18.0 5 685.1 IC,IF 18 37.2 45.0 41.3 T 020 10.3 18 030 20.2 5 684.9 IC,IF 19 41.1 47.2 43.5 T 330 2.6 7 340 23.0 6 692.0 IC,SG- 20 40.0 46.1 43.8 T 120 6.9 12 090 21.0 2 694.0 SG,IC,IF 21 44.4 47.2 45.6 T 090 12.1 16 090 24.0 1 690.2 IC,IF 22 44.4 53.3 49.1 0 130 12.9 15 130 23.2 2 685.0 23 47.0 53.9 50.7 T 110 6.6 15 100 23.6 4 686.0 SG- 24 42.0 47.8 43.2 T 350 10.9 14 330 16.2 8 685.2 SG-,IF 25 42.0 47.2 44.6 T 110 8.1 16 120 16.3 6 684.9 SG-,IF 26 45.6 48.3 46.9 0 080 21.5 28 100 22.3 0 680.1 27 46.7 51.7 49.0 0 090 13.0 16 090 23.6 0 680.5 28 51.7 53.9 53.0 0 090 11.7 14 070 23.5 0 687.0 29 52.2 53.9 52.6 0 080 14.1 16 070 23.9 0 688.7 AVG 37.1 42.6 39.9 T 090 11.8 28 100 18.5 4 688.8 26th AVG MONTHLY -39.9 PCPN TRACE NR DAYS CLEAR 10 HIGHEST -23.7 ON 1st SUNSHINE 535.9/ 77% PARTLY CLOUDY 11 LOWEST -53.9 ON 23rd,28th,29th CLOUDY 08 HIGH PRESSURE 698.3 ON 10th LOW PRESSURE 679.5 ON 26th 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. 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 Monthly Averages: (All temps are Minus C) From To From To From To Max T 37.3 37.1 Avg Wnd Spd 12.0 11.8 Avg Press Min T 42.2 42.6 Max Press Fastest Wnd MPH Avg T 39.8 39.9 Min Press Changes to Daily Data: Max Temp Day 2 3 4 5 9 11 14 15 16 23 24 25 From: 30.0 30.0 32.2 32.8 28.9 30.6 34.4 37.8 39.4 47.2 42.2 42.2 To: 29.8 29.8 31.4 32.5 28.7 30.3 34.2 37.5 39.2 47.0 42.0 42.0 Min Temp No Daily Changes Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 From: 27.5 31.4 31.9 34.4 35.0 30.3 33.1 29.4 33.1 34.4 33.9 35.6 39.4 38.3 To: 28.4 31.0 31.2 34.1 34.7 30.9 32.6 29.1 32.6 36.9 34.2 37.9 40.0 37.7 Day 15 16 17 18 19 20 21 22 23 24 25 27 28 29 From: 40.6 40.8 42.5 41.1 44.2 43.1 45.8 48.9 50.6 45.0 44.7 49.2 52.8 53.1 To: 40.8 40.0 42.2 41.3 43.5 43.8 45.6 49.1 50.7 43.2 44.6 49.0 53.0 52.6 Number of NCDC observations per day: day 1 - day 17: 8 day 18- day 29: 4