***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1969 MONTH DECEMBER .... 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 32.0 34.4 32.1 0 040 9.5 10 040 24.0 7 686.8 2 30.0 32.2 31.4 0 100 7.6 10 040 24.0 5 687.8 3 30.6 32.8 32.2 0 060 11.2 14 060 24.0 2 684.9 4 30.9 32.8 31.7 0 070 8.3 14 060 21.1 5 684.9 5 30.0 32.2 31.1 T 030 12.7 15 030 18.9 5 683.6 IC,IF 6 30.6 32.2 31.3 T 040 13.0 15 030 23.1 4 681.9 IC,IF,BS 7 28.7 32.2 30.0 T 010 12.4 15 020 22.1 8 684.1 IC,IF 8 28.9 32.8 31.5 T 300 7.6 15 010 17.9 6 694.6 IC,IF 9 28.3 32.2 31.3 T 100 6.5 12 300 17.9 6 695.2 IC,IF 10 30.9 32.2 31.6 0 020 6.6 12 100 24.0 2 694.0 11 26.4 32.2 28.3 0 360 14.7 18 360 20.3 7 698.5 12 24.2 28.3 25.0 T 330 15.1 18 330 3.8 8 696.0 SG,IC,IF 13 24.2 25.6 24.9 0 350 16.2 20 340 5.1 8 689.9 SG,IF 14 24.4 27.0 26.2 T 010 13.9 18 350 19.3 7 689.6 SG,IC,IF 15 25.3 27.8 26.4 0 060 8.9 15 010 24.0 8 692.1 16 25.6 27.0 26.4 0 070 6.5 10 050 24.0 5 692.4 17 26.1 27.8 27.1 0 120 8.0 10 120 24.0 4 687.9 18 27.0 28.3 27.7 0 090 2.8 10 120 24.0 4 688.1 19 26.7 28.3 27.5 0 120 4.9 8 110 24.0 2 692.8 20 27.0 27.8 27.4 0 120 9.3 11 120 24.0 1 692.2 21 26.1 27.8 26.8 0 060 8.9 13 120 24.0 1 689.4 22 26.7 29.8 28.0 0 050 8.1 9 090 24.0 2 689.7 23 27.2 31.1 30.6 T 050 8.8 12 040 24.0 4 690.1 IC 24 29.8 31.1 30.4 T 040 8.8 12 050 24.0 4 688.4 IC 25 26.4 32.2 28.5 T 360 11.9 17 350 24.0 5 690.0 IC,IF 26 26.1 28.9 27.9 T 020 7.6 17 360 23.4 5 689.5 SG,IC,IF 27 26.1 29.4 28.5 T 110 10.5 14 120 13.0 2 692.0 SG,IC,IF 28 26.4 29.4 26.9 0 110 14.0 16 110 24.0 0 690.1 29 24.8 27.2 25.7 0 070 13.3 16 110 24.0 0 686.6 30 20.3 26.1 21.8 T 040 16.1 21 040 21.2 7 686.5 SG,IF 31 20.6 23.3 21.5 0 070 10.1 16 320 4.8 8 688.2 SG,IC,IF AVG 27.0 29.8 28.3 T 040 10.1 21 040 20.6 5 689.6 30th AVG MONTHLY -28.3 PCPN TRACE NR DAYS CLEAR 10 HIGHEST -20.3 ON 30th SUNSHINE 639.9/86.0% PARTLY CLOUDY 11 LOWEST -34.4 ON 1st CLOUDY 10 HIGH PRESSURE 699.3 ON 12th LOW PRESSURE 681.0 ON 1st NET CHANGE IN SNOWSTAKE FIELD: 9.99 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 Extremes: From To Max T -20.6 -20.3 Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 27.4 27.0 Avg Wnd Spd 10.0 10.1 Avg Press 689.5 689.6 Min T 29.7 29.8 Max Press Fastest Wnd MPH Avg T 28.6 28.3 Min Press Changes to Daily Data: Max Temp Day 1 4 7 10 11 12 13 15 18 20 24 25 28 29 30 From: 32.2 32.2 30.6 31.1 28.3 25.0 24.4 26.1 27.2 27.2 30.0 27.8 26.7 26.1 21.7 To: 32.0 30.9 28.7 30.9 26.4 24.2 24.2 25.3 27.0 27.0 29.8 26.4 26.4 24.8 20.3 Min Temp Day 14 16 22 From: 26.7 26.7 28.3 To: 27.0 27.0 29.8 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 33.3 31.1 31.7 32.5 31.1 31.4 31.4 30.8 30.3 31.7 30.3 26.7 25.0 25.6 26.9 26.1 To: 32.1 31.4 32.2 31.7 31.1 31.3 30.0 31.5 31.3 31.6 28.3 25.0 24.9 26.2 26.4 26.4 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 26.9 27.8 27.5 27.5 26.9 27.5 29.2 30.6 30.0 27.5 27.8 28.1 26.7 23.9 21.9 To: 27.1 27.7 27.5 27.4 26.8 28.0 30.6 30.4 28.5 27.9 28.5 26.9 25.7 21.8 21.5 Number of NCDC observations per day: 8