***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1974 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 22.8 25.6 24.2 T 060 13.2 18 360 22.8 2 701.9 IC,IF 2 22.6 24.4 23.4 T 050 15.9 22 090 24.0 0 694.5 IC 3 23.1 23.9 23.3 0 040 18.0 22 050 24.0 0 692.2 IC 4 22.8 24.2 23.6 T 030 17.3 23 030 23.9 1 694.8 IC,IF,BS 5 22.6 25.0 24.2 T 070 9.7 20 030 24.0 1 695.4 IC,BS,IF 6 22.6 23.9 23.1 T 070 11.5 16 030 24.0 0 696.3 IC,IF 7 20.9 23.7 22.7 T 060 10.3 16 050 24.0 0 698.4 IC 8 22.6 24.4 23.8 0 010 6.2 12 060 24.0 3 703.6 9 22.2 25.0 24.3 T 110 10.9 15 080 16.3 2 700.4 SG,IF 10 18.7 24.4 21.8 0 120 12.8 22 120 23.9 4 688.8 11 18.9 26.4 24.8 T 060 8.3 17 030 10.3 4 691.7 IC,SG,BS,IF 12 23.3 28.1 26.1 T 110 8.8 13 110 22.8 2 693.2 SG,IF 13 25.0 28.3 26.1 0 110 13.4 17 110 24.0 1 690.4 14 25.0 28.1 27.3 T 110 7.6 15 110 24.0 2 690.9 IC 15 26.1 30.0 29.1 T 060 7.0 10 060 24.0 5 690.8 IC,SG 16 27.8 30.6 29.6 T 070 10.6 17 060 23.5 4 685.4 IC,SG,IF 17 27.8 31.7 30.5 T 010 8.1 14 350 22.2 5 686.7 IC,SG,IF 18 27.0 32.2 29.1 T 040 11.9 18 040 24.0 5 686.8 IC,IF,BS 19 23.1 29.4 26.7 T 040 10.7 15 040 24.0 6 687.3 IC,IF,BS 20 23.3 27.2 26.0 T 030 12.8 17 020 11.0 5 689.7 SG,IF 21 25.6 28.3 27.8 T 050 10.8 16 030 24.0 2 690.2 IC 22 23.7 29.4 26.9 T 020 14.5 18 030 16.0 6 688.0 IF,IC,SG 23 23.9 29.4 27.3 T 020 11.9 24 010 4.8 7 687.6 SG,IC,IF,BS 24 25.3 29.8 27.5 T 030 15.5 21 030 17.2 6 687.8 SG,IC,IF,BS 25 25.0 31.4 29.6 T 040 12.2 21 030 17.5 6 685.0 SG,IC,IF,BS 26 28.9 33.7 32.2 T 050 9.5 16 040 17.5 5 683.3 IC,IF 27 32.2 34.4 34.0 T 070 9.9 13 070 24.0 2 683.7 IC 28 33.9 35.6 34.8 T 050 11.1 13 070 24.0 4 681.4 IC 29 34.4 38.3 36.5 T 030 6.7 13 030 24.0 7 684.2 IC 30 33.9 38.9 36.7 T 110 3.8 9 030 24.0 6 688.9 SG,IC 31 28.9 41.4 40.0 T 070 7.9 10 070 24.0 1 687.7 SG,IC AVG 25.3 29.3 27.8 T 070 10.9 24 010 21.2 3 690.6 23rd AVG MONTHLY -27.8 PCPN TRACE NR DAYS CLEAR 14 HIGHEST -18.7 ON 10th SUNSHINE 657.7 88.4 PARTLY CLOUDY 15 LOWEST -41.4 ON 31st CLOUDY 02 HIGH PRESSURE 705.4 ON 9th LOW PRESSURE 681.0 ON 28th 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 -18.9 -18.7 Min T -40.6 -41.4 Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 25.7 25.3 Avg Wnd Spd 11.0 10.9 Avg Press 690.7 690.6 Min T 28.9 29.3 Max Press 704.2 705.4 Fastest Wnd MPH Avg T 27.3 27.8 Min Press 681.8 681.0 Changes to Daily Data: Max Temp Day 2 3 4 5 6 7 8 10 18 19 22 24 From: 22.8 23.3 23.3 22.8 22.8 22.2 22.8 21.1 27.2 27.8 26.7 26.1 To: 22.6 23.1 22.8 22.6 22.6 20.9 22.6 18.7 27.0 23.1 23.7 25.3 Min Temp Day 4 7 11 12 14 15 17 24 25 26 29 30 31 From: 23.9 23.3 25.6 27.2 27.2 29.4 30.6 28.9 30.0 32.2 36.7 38.3 40.6 To: 24.2 23.7 26.4 28.1 28.1 30.0 31.7 29.8 31.4 33.7 38.3 38.9 41.4 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 24.2 23.6 23.6 23.6 23.9 23.3 22.8 23.6 23.6 22.8 22.2 25.3 26.7 26.1 27.8 29.2 To: 24.2 23.4 23.3 23.6 24.2 23.1 22.7 23.8 24.3 21.8 24.8 26.1 26.1 27.3 29.1 29.6 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 29.2 29.7 28.6 25.3 26.9 28.1 26.7 27.5 27.5 30.6 33.3 34.7 35.6 36.1 34.7 To: 30.5 29.1 26.7 26.0 27.8 26.9 27.3 27.5 29.6 32.2 34.0 34.8 36.5 36.7 40.0 Number of NCDC observations per day: 24