***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1979 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 30.0 33.0 32.2 T 120 5.8 9 130 24.0 2 686.4 2 32.0 34.0 32.9 0 120 5.8 13 110 24.0 0 686.4 3 32.1 33.3 33.0 0 130 7.5 12 130 24.0 0 683.7 4 31.6 33.0 32.5 0 080 5.1 12 080 24.0 0 680.3 5 31.6 34.0 32.3 0 030 5.2 9 080 24.0 1 687.6 6 31.7 33.0 32.2 0 110 8.9 12 100 24.0 1 692.3 7 30.0 32.2 30.9 0 020 6.2 14 100 24.0 4 690.5 8 26.0 32.2 28.0 T 020 9.3 13 330 21.9 7 689.1 9 24.4 31.0 27.6 T 350 8.3 23 330 14.9 7 690.2 10 26.7 32.8 31.7 T 280 2.2 14 330 24.0 3 694.0 11 30.0 32.8 30.2 T 130 5.6 13 120 24.0 4 695.3 12 28.9 30.0 29.0 T 110 9.1 15 110 24.0 0 695.7 13 28.0 29.5 28.4 0 090 9.2 14 110 24.0 0 694.7 14 28.0 29.0 28.5 0 090 6.9 14 110 24.0 3 693.2 15 25.0 29.5 26.8 T 070 10.5 17 050 20.8 6 692.8 16 21.0 26.7 23.0 T 030 14.4 23 360 16.8 7 696.1 17 21.0 25.0 22.2 T 350 10.2 23 030 10.4 6 701.3 18 20.5 24.0 22.8 T 070 11.3 17 070 5.3 4 700.3 19 21.6 24.5 24.0 T 020 8.8 21 020 21.3 4 699.6 20 23.4 25.0 24.4 0 050 7.7 13 050 24.0 6 694.8 21 21.0 25.6 23.4 T 090 9.5 14 020 22.6 5 690.2 22 21.0 22.3 21.9 T 020 11.7 22 020 11.8 6 684.7 23 19.6 29.0 23.6 T 070 5.8 23 020 4.8 5 681.7 24 21.5 28.0 25.5 T 030 15.1 24 050 23.6 5 680.4 25 20.9 28.1 26.7 T 360 11.5 32 010 24.0 6 680.3 26 24.8 28.6 28.0 T 020 9.5 21 030 20.1 7 681.4 27 26.4 28.6 27.7 T 350 8.5 16 350 21.9 5 684.2 28 25.0 28.1 26.1 T 320 14.7 21 290 15.5 8 686.4 29 24.6 28.0 26.9 T 300 8.4 23 310 12.5 6 681.9 30 26.4 30.0 28.9 T 260 1.7 10 300 24.0 4 680.2 31 27.0 32.0 29.3 T 230 4.1 9 210 22.8 1 682.1 AVG 25.9 29.4 27.8 T 020 8.3 32 010 20.2 4 689.0 25th AVG MONTHLY -27.8 PCPN TRACE NR DAYS CLEAR 09 HIGHEST -19.6 ON 23rd SUNSHINE 627.0/ 84% PARTLY CLOUDY 17 LOWEST -34.0 ON 2nd,5th CLOUDY 05 HIGH PRESSURE 702.0 ON 18th LOW PRESSURE 678.2 ON 30th NET CHANGE IN SNOWSTAKE FIELD: +0.10 inches 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 Min T -32.8 -34.0 Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 26.1 25.9 Avg Wnd Spd 7.3 8.3 Avg Press Min T 28.9 29.4 Max Press Fastest Wnd MPH Avg T 27.5 27.8 Min Press Changes to Daily Data: Max Temp Day 2 7 8 13 14 15 16 17 21 22 28 31 From: 32.2 31.2 27.8 28.3 28.3 25.3 22.4 21.1 22.8 21.1 25.3 27.5 To: 32.0 30.0 26.0 28.0 28.0 25.0 21.0 21.0 21.0 21.0 25.0 27.0 Min Temp Day 1 2 3 4 5 6 9 14 18 23 24 29 30 31 From: 32.4 32.6 32.7 32.6 32.8 32.8 28.9 28.9 23.9 22.5 26.3 27.4 29.2 30.2 To: 33.0 34.0 33.3 33.0 34.0 33.0 31.0 29.0 24.0 29.0 28.0 28.0 30.0 32.0 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 31.2 32.4 32.4 32.1 32.2 32.3 31.7 30.0 26.6 29.8 31.4 29.5 28.9 28.6 27.4 24.6 To: 32.2 32.9 33.0 32.5 32.3 32.2 30.9 28.0 27.6 31.7 30.2 29.0 28.4 28.5 26.8 23.0 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 23.1 22.2 23.1 24.2 24.2 21.7 21.1 23.9 24.5 26.7 27.5 26.7 26.0 27.8 28.9 To: 22.2 22.8 24.0 24.4 23.4 21.9 23.6 25.5 26.7 28.0 27.7 26.1 26.9 28.9 29.3 Number of NCDC observations per day: 8