***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1965 MONTH JANUARY ....... 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 30.0 28.8 T 360 7.3 12 330 23.6 7 690.7 02 25.9 30.0 27.5 T 010 6.7 12 020 12.5 6 689.8 03 27.0 28.9 27.8 0 090 7.6 12 080 23.0 2 688.2 IF 04 24.8 27.8 26.7 0 090 8.1 14 080 23.4 2 688.6 05 23.1 26.7 24.4 T 030 8.7 14 020 22.0 5 688.0 IF 06 22.6 26.7 24.5 T 010 9.8 15 020 16.4 6 686.2 IF 07 23.1 26.7 25.1 T 360 7.2 16 360 19.9 6 686.5 IF 08 23.7 28.9 26.1 T 350 9.3 15 350 16.7 7 686.0 IF 09 20.9 27.2 23.7 T 010 8.4 16 360 7.5 8 688.1 IF 10 20.6 22.8 21.8 T 050 3.5 12 330 0.9 8 692.0 IF 11 22.6 27.8 24.2 T 290 3.2 9 290 9.0 6 695.2 IF 12 27.0 29.4 27.7 0 090 9.6 16 100 23.3 2 693.0 13 27.0 28.3 27.4 0 040 11.5 16 040 24.0 2 694.4 14 25.9 27.8 26.9 0 080 9.7 14 080 21.0 3 691.7 IF 15 25.9 29.4 27.5 0 360 3.0 12 010 0.1 8 693.0 IF+ 16 23.1 28.9 25.7 T 050 6.6 16 010 0.0 8 692.5 IF+ 17 23.1 29.4 27.7 T 090 8.8 15 110 20.1 2 684.7 IF 18 29.2 31.1 30.2 0 350 4.4 12 240 22.1 3 687.5 19 29.8 32.8 30.3 0 360 3.4 9 150 22.2 3 694.8 20 24.8 31.7 27.7 0 170 4.2 9 170 14.6 3 695.4 21 27.0 32.2 29.2 T 120 1.9 8 160 21.7 5 692.8 22 27.5 31.7 29.1 T 050 3.6 10 050 16.0 3 692.5 23 29.8 31.7 30.4 T 010 5.8 12 360 20.6 6 694.4 IF 24 28.7 32.8 30.3 T 020 7.6 14 020 9.7 7 693.7 25 32.0 33.9 33.0 0 040 11.3 14 040 23.0 3 691.1 26 33.7 35.0 33.9 0 010 12.8 17 020 23.4 6 691.5 27 32.5 35.6 33.3 0 030 7.2 14 010 20.0 2 694.6 28 34.2 36.1 35.1 0 100 8.6 13 110 24.0 0 691.3 29 34.8 36.1 35.3 0 090 9.6 14 080 24.0 0 687.7 30 34.2 37.2 35.9 T 030 8.6 14 080 23.4 2 690.6 31 37.2 41.1 39.0 T 070 8.0 12 070 23.3 3 694.5 AVG 27.4 30.8 28.9 T 010 7.3 17 020 17.8 4 691.0 26th AVG MONTHLY -28.9 PCPN TRACE NR DAYS CLEAR 09 HIGHEST -20.6 ON 10th SUNSHINE 551.4/ 74% PARTLY CLOUDY 15 LOWEST -41.1 ON 31st CLOUDY 07 HIGH PRESSURE 696.6 ON 19th,20th LOW PRESSURE 683.4 ON 17th 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 Extremes: From To Max T Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 27.2 27.3 Avg Wnd Spd 7.1 7.3 Avg Press Min T Max Press Fastest Wnd MPH Avg T 29.0 28.9 Min Press Changes to Daily Data: Max Temp Taken from NCDC Data. No data on original LCD. Min Temp No Daily Changes Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 28.3 27.8 27.8 26.7 25.0 25.0 25.0 26.7 24.4 21.7 25.6 28.3 27.8 27.2 27.8 26.1 To: 28.8 27.5 27.8 26.7 24.4 24.5 25.1 26.1 23.7 21.8 24.2 27.7 27.4 26.9 27.5 25.7 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 26.1 30.0 31.1 27.8 30.6 30.0 30.6 31.1 32.8 34.4 33.9 35.6 35.6 35.6 39.4 To: 27.7 30.2 30.3 27.7 29.2 29.1 30.4 30.3 33.0 33.9 33.3 35.1 35.3 35.9 39.0 Avg MPH Day 7 15 16 25 From: 8.1 1.2 4.8 8.0 To: 7.2 3.0 6.6 11.3 Number of NCDC observations per day: 8