***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1981 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 31.0 36.6 33.3 0 060 11.6 17 060 24.0 1 682.1 2 31.0 35.2 31.7 T 050 11.5 23 020 23.6 2 674.1 3 30.0 32.0 31.1 T 340 14.4 28 320 22.1 3 687.5 4 30.6 33.0 32.1 T 020 8.7 21 360 16.4 7 682.5 5 29.9 33.3 32.2 T 360 7.2 17 030 22.3 2 678.0 6 31.7 33.9 33.2 T 020 4.9 10 010 24.0 1 684.2 7 32.0 34.0 32.9 0 070 7.2 12 040 24.0 2 684.4 8 29.0 32.7 30.0 T 040 9.3 16 040 23.0 1 680.2 9 26.0 30.0 27.1 T 360 12.8 18 360 23.9 2 678.4 10 25.0 28.0 25.9 T 010 12.1 21 360 23.4 7 678.8 11 24.1 27.0 26.0 T 330 5.1 20 350 16.5 8 680.6 12 24.0 30.9 25.9 T 100 6.5 14 350 14.9 8 676.3 13 24.6 29.0 26.4 T 060 8.0 15 040 6.6 8 679.7 14 24.4 28.0 27.1 T 360 6.8 16 050 14.0 6 681.5 15 26.7 29.0 27.8 T 080 7.0 14 010 1.4 8 682.3 16 27.0 30.0 28.1 0 050 8.1 14 060 7.1 6 682.8 17 27.5 29.9 28.2 0 080 6.3 15 050 17.2 3 681.7 18 27.9 29.9 28.5 0 070 5.2 9 090 24.0 6 677.1 19 27.2 30.0 28.6 0 040 3.2 12 050 20.3 7 674.8 20 27.2 30.0 29.7 T 220 3.5 10 030 19.0 8 676.5 21 26.0 30.6 26.9 T 300 9.2 15 210 13.9 6 679.8 22 25.7 29.0 28.1 T 290 9.8 21 300 4.8 8 681.5 23 27.7 30.2 29.6 T 060 6.2 14 050 22.8 6 681.9 24 28.7 30.1 29.9 T 090 4.6 12 010 24.0 2 680.2 25 27.7 30.6 29.0 0 020 2.5 8 010 23.7 1 682.9 26 23.0 29.4 26.4 0 020 13.4 21 020 24.0 2 683.6 27 21.3 27.5 22.9 T 340 11.2 23 360 7.6 8 685.2 28 21.0 25.1 22.2 T 350 11.2 21 330 6.4 8 689.5 29 20.4 24.6 21.8 T 040 10.4 20 310 4.5 8 689.8 30 19.9 25.0 22.6 T 020 12.9 23 020 6.3 8 684.6 31 22.0 30.0 24.0 T 350 8.4 20 020 11.8 7 686.1 AVG 26.5 30.1 28.0 T 020 8.4 28 320 16.7 5 681.6 3rd AVG MONTHLY -28.0 PCPN TRACE NR DAYS CLEAR 09 HIGHEST -19.9 ON 30th SUNSHINE 517.5/69.6% PARTLY CLOUDY 10 LOWEST -36.6 ON 1st CLOUDY 12 HIGH PRESSURE 689.9 ON 29th LOW PRESSURE 674.8 ON 20th 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 Monthly Averages: (All temps are Minus C) From To From To From To Max T 26.8 26.5 Avg Wnd Spd 8.5 8.4 Avg Press 681.5 681.6 Min T 29.8 30.1 Max Press Fastest Wnd MPH Avg T 28.3 28.0 Min Press Changes to Daily Data: Max Temp Day 1 2 7 8 9 10 12 16 19 21 26 From: 35.0 31.3 32.6 29.1 26.2 25.5 25.3 27.1 28.1 26.2 26.4 To: 31.0 31.0 32.0 29.0 26.0 25.0 24.0 27.0 27.2 26.0 23.0 Min Temp Day 3 4 6 7 11 14 15 16 19 22 30 31 From: 31.9 32.3 33.6 33.9 26.7 27.6 28.4 29.2 29.9 28.0 22.6 25.7 To: 32.0 33.0 33.9 34.0 27.0 28.0 29.0 30.0 30.0 29.0 25.0 30.0 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 35.8 33.3 31.0 31.5 31.6 32.7 33.3 30.9 28.1 26.8 25.4 28.1 26.8 26.0 27.6 28.2 To: 33.3 31.7 31.1 32.1 32.2 33.2 32.9 30.0 27.1 25.9 26.0 25.9 26.4 27.1 27.8 28.1 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 28.7 28.9 29.0 28.6 28.4 26.9 29.0 29.4 29.2 27.9 24.4 23.1 22.5 21.3 23.9 To: 28.2 28.5 28.5 29.7 26.9 28.1 29.6 29.9 29.0 26.4 22.9 22.2 21.8 22.6 24.0 Number of NCDC observations per day: 8