CORRECTED WINTER 2006 LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1968 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 33.9 35.0 34.5 0 100 6.0 8 030 24.0 2 686.4 2 33.7 34.8 34.1 0 110 8.2 10 110 24.0 0 684.4 3 32.0 34.2 33.3 0 040 7.2 9 020 24.0 2 681.2 4 32.5 33.9 33.3 T 020 8.2 10 360 24.0 4 683.8 IC 5 33.1 33.9 33.4 T 360 6.8 9 070 24.0 5 685.6 SG,IC 6 32.5 34.4 33.4 0 110 5.6 8 110 24.0 0 684.5 7 32.0 33.3 32.8 0 050 6.5 10 110 24.0 1 684.2 8 29.2 31.7 31.0 T 050 9.0 13 090 24.0 1 684.7 IC 9 30.0 31.4 30.4 0 030 11.5 14 040 20.3 5 685.3 10 28.1 31.1 29.4 T 350 15.4 19 360 24.0 8 686.9* IC 11 28.1 28.9 28.2 T 350 15.4 19 360 8.3 7 683.9 IC,IF,BS,SG 12 28.7 30.6 29.1 T 350 9.7 11 330 12.7 5 687.5 SG,IC,BS,IF 13 27.0 30.6 28.2 T 330 8.6 9 320 15.2 6 689.8 SG,IF 14 26.4 29.4 28.1 T 310 4.6 8 330 12.6 4 690.2 SG,IC,IF 15 28.3 28.9 28.7 T 070 8.1 9 080 19.8 1 688.5 SG,IF 16 27.8 28.9 28.4 0 080 7.8 9 080 24.0 0 688.9 17 25.9 28.9 28.0 0 140 6.4 8 120 24.0 4 682.2 18 27.5 28.9 28.0 0 130 5.6 7 130 24.0 1 692.7 19 27.0 28.3 27.8 0 110 11.2 14 110 24.0 0 687.3 20 26.4 29.8 28.7 0 130 9.0 11 130 24.0 0 681.9 21 28.3 30.9 29.5 0 320 7.5 16 320 24.0 3 684.8 22 28.7 31.1 30.4 T 340 14.7 19 340 22.4 7 689.3 23 26.1 28.3 26.6 T 320 17.6 21 310 16.7 7 691.6 SG,IC,BS 24 27.0 28.9 27.4 T 360 9.6 13 360 1.1 4 694.0 SG,IC,BS 25 25.9 27.8 26.3 T 030 5.8 8 030 8.8 2 695.8 SG 26 24.2 26.7 25.7 0 020 12.1 18 360 20.7 3 698.8 27 22.8 25.0 23.7 T 010 17.2 19 010 24.0 8 700.0 SG 28 22.8 25.0 24.1 T 020 12.4 14 030 24.0 7 699.3 SG,BS 29 24.8 26.1 25.3 T 020 11.2 14 020 20.4 7 693.8 SG,BS 30 25.0 27.2 26.0 0 030 3.1 6 030 24.0 3 691.9 31 25.9 26.4 26.2 0 150 4.2 7 140 21.0 5 691.7 AVG 28.1 30.0 29.0 T 030 9.2 21 310 20.4 4 688.7 24th AVG MONTHLY -29.0 PCPN TRACE NR DAYS CLEAR 16 HIGHEST -22.8 ON 27th,28th SUNSHINE 632.0/84.9% PARTLY CLOUDY 11 LOWEST -35.0 ON 1st CLOUDY 04 HIGH PRESSURE 700.6 ON 27th,28th LOW PRESSURE 680.7 ON 3rd 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 Sky Cover changed to Octas. Day 1 - Day 9: All values taken from LCD data unless otherwise indicated. Day 10 - Day 31: All values taken from NCDC data unless otherwise indicated. *(Day 10): Change in reporting time from UTC to local time (NZST). Maximum and minimum temperature values from day 10 - day 31 are derived using interprolation between LCD and NCDC data. Day 1 - Day 9: Sunshine amount and present WX conditions are based on UTC. Day 10 - Day 31: Sunshine amount and present WX conditions are based on NZST. Changes made to wind and pressure data from original LCD are not listed. Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 28.6 28.1 Avg Wnd Spd 9.3 9.2 Avg Press 688.8 688.7 Min T 30.2 30.0 Max Press 699.9 700.6 Fastest Wnd MPH 23 21 Avg T 29.4 29.0 Min Press 681.0 680.7 Changes to Daily Data: Max Temp Day 2 3 4 5 6 7 8 10 11 12 13 14 16 From: 33.9 32.2 32.8 33.3 32.8 32.2 30.0 30.6 28.3 28.3 28.9 27.2 28.3 To: 33.7 32.0 32.5 33.1 32.5 32.0 29.2 28.1 28.1 27.9 27.0 26.4 27.8 Day 17 18 19 20 22 23 24 25 26 27 29 31 From: 27.8 27.8 27.8 27.2 28.3 28.9 26.1 27.2 26.1 24.4 22.8 25.0 To: 25.9 27.5 27.0 26.4 28.7 26.1 27.0 25.9 24.2 22.8 24.8 25.9 Min Temp Day 2 3 9 10 11 12 14 15 19 20 From: 34.4 33.9 31.1 32.2 31.1 28.9 30.6 29.4 28.9 28.3 To: 34.8 34.2 31.4 31.1 28.9 30.6 29.4 28.9 28.3 29.8 Day 21 22 23 24 25 26 27 29 30 31 From: 30.0 31.7 31.1 28.3 28.9 27.8 26.7 25.0 26.1 27.2 To: 30.9 31.1 28.3 28.9 27.8 26.7 25.0 26.1 27.2 26.4 Avg Temp Day 1 2 3 5 6 7 8 9 10 11 12 13 14 15 16 From: 34.4 34.2 33.1 33.6 33.6 32.8 30.8 30.6 31.4 29.7 28.6 29.7 28.9 28.9 28.6 To: 34.5 34.1 33.3 33.4 33.4 32.4 31.0 30.4 29.4 28.2 29.1 28.2 28.1 28.7 28.4 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 28.3 28.3 28.3 27.8 29.2 30.0 30.0 27.2 28.1 26.9 25.6 23.9 23.9 25.6 26.1 To: 28.0 28.0 27.8 28.7 29.5 30.4 26.6 27.4 26.3 25.7 23.7 24.1 25.3 26.0 26.2 Number of NCDC observations per day: day 1 - day 30: 8 day 31: 5