***Corrected Winter 2011*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1973 MONTH JANUARY .... ALL TEMPERATURES MINUS C.... DAY TEMPERATURE C PCPN AVG WIND FASTEST SUN SKY STN WX MAX MIN AVG SPEED MILE SHINE COVER PRESS DIR MPH SPD DIR HRS 1 23.9 30.0 28.3 T 320 6.2 16 290 7.0 3 690.9 IC 2 27.8 30.0 29.7 T 110 7.5 10 110 21.0 1 687.3 IC 3 28.9 30.6 29.9 T 020 7.6 9 020 24.0 6 688.7 IC 4 27.0 31.1 29.2 T 350 7.6 14 330 21.0 8 690.8 IC 5 27.2 30.6 29.9 T 320 4.5 10 300 5.0 6 695.5 IC,IF 6 29.2 31.7 29.7 T 020 8.1 9 020 20.0 5 700.9 IC 7 28.7 30.0 29.3 0 020 6.4 10 010 24.0 1 701.8 8 27.2 30.0 27.8 0 080 7.1 9 060 24.0 2 702.7 9 26.1 27.8 27.0 0 070 6.8 10 060 24.0 5 705.5 10 23.7 27.2 25.2 0 050 5.9 9 050 24.0 5 702.9 11 23.3 27.5 25.9 T 010 9.6 14 010 24.0 7 698.0 12 25.0 29.2 28.6 T 040 10.1 15 050 24.0 2 695.2 13 25.6 30.0 27.6 T 120 5.5 12 060 16.0 7 693.4 14 24.8 31.1 29.5 T 030 8.4 11 070 21.0 6 691.4 15 24.4 31.1 25.6 T 070 2.9 12 080 8.0 8 693.0 16 23.1 27.2 25.0 T 040 8.2 17 060 1.0 8 690.5 17 22.2 26.1 23.6 T 360 10.0 16 360 4.0 8 686.3 18 22.8 27.2 24.7 T 010 10.6 14 360 0.0 8 684.4 19 24.4 31.7 30.5 T 020 6.2 14 360 20.0 6 687.8 IC 20 29.4 32.2 30.9 T 010 8.7 12 030 24.0 7 688.4 IC 21 28.9 31.7 31.2 T 110 7.7 13 120 24.0 6 688.3 IC 22 30.6 33.3 31.8 T 050 10.1 14 030 24.0 7 692.4 IC 23 29.8 32.8 31.2 T 060 13.4 17 110 24.0 3 693.4 IC 24 27.5 32.2 28.9 T 100 8.9 17 090 19.0 4 691.2 IC,IF 25 26.7 33.9 32.3 T 070 5.8 13 060 16.0 4 693.2 IC,IF 26 30.6 34.4 33.7 T 070 10.4 14 060 24.0 1 693.0 IF 27 27.5 35.0 32.2 0 080 10.6 15 080 24.0 5 693.2 28 27.8 34.4 29.1 T 030 11.7 20 030 4.0 8 694.7 IF,BS 29 28.9 34.4 33.0 T 020 8.9 15 020 20.0 6 694.4 IC,IF 30 32.2 35.3 34.5 T 040 10.3 13 070 21.0 6 689.6 31 29.2 35.6 32.3 T 030 13.5 16 030 21.0 7 683.6 IC,IF AVG 26.9 31.1 29.3 T 020 8.4 20 030 18.0 5 693.0 28th AVG MONTHLY -29.3 PCPN TRACE NR DAYS CLEAR 05 HIGHEST -22.2 ON 17th SUNSHINE 557.0/ 75% PARTLY CLOUDY 15 LOWEST -35.6 ON 31st CLOUDY 11 HIGH PRESSURE 706.1 ON 10th LOW PRESSURE 683.0 ON 31st 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 Average Sky Cover changed to reflect data from 00Z through 00Z daily. All Sky Cover changed to Octas. Peak wind speed, peak wind direction, precipitation, sunshine amount, and present wx reported in NZST. Insufficient data to convert these values to UTC. All temperature, wind, and pressure data taken from NCDC data. LCD data originally reported in NZST. Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 27.3 26.9 Avg Wnd Spd 8.3 8.4 Avg Press Min T 30.9 31.1 Max Press Fastest Wnd MPH Avg T 29.1 29.3 Min Press 683.2 683.0 Changes to Daily Data: Max Temp Day 4 6 7 8 10 14 16 23 24 27 31 From: 27.2 29.4 28.9 27.8 25.0 25.0 24.4 30.0 27.8 33.3 32.2 To: 27.0 29.2 28.7 27.2 23.7 24.8 23.1 29.8 27.5 27.5 29.2 Min Temp Day 1 11 12 18 19 25 29 30 From: 29.4 26.1 28.9 25.6 30.6 33.3 33.3 35.0 To: 30.0 27.5 29.2 27.2 31.7 33.9 34.4 35.3 Avg Temp Day 1 2 3 5 6 7 8 9 10 11 12 13 14 15 16 17 From: 26.7 28.9 29.7 28.9 30.6 29.4 28.9 26.9 26.1 24.7 26.9 27.8 28.1 27.8 25.8 24.2 To: 28.3 29.7 29.9 29.9 29.7 29.3 27.8 27.0 25.2 25.9 28.6 27.6 29.5 25.6 25.0 23.6 Day 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 24.2 27.5 30.8 30.3 31.9 31.4 30.0 30.0 32.5 34.2 31.1 31.1 33.6 33.9 To: 24.7 30.5 30.9 31.2 31.8 31.2 28.9 32.3 33.7 32.2 29.1 33.0 34.5 32.3 Number of NCDC observations per day: 8