***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1970 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 20.0 23.9 22.9 T 040 11.0 15 030 8.7 6 685.7 SG,IC,IF 2 22.8 25.3 24.8 T 020 8.6 13 030 18.2 3 687.0 IC,IF 3 24.4 26.1 25.8 0 010 9.0 13 010 24.0 2 687.4 4 23.1 26.1 24.0 T 350 6.8 10 360 16.4 6 691.3 SG,IF 5 22.0 25.0 23.2 T 360 8.5 12 020 10.6 6 694.2 SG,IC 6 22.8 25.6 24.6 T 050 8.9 9 100 22.8 1 695.7 SG,IC 7 23.7 25.0 24.4 0 110 10.8 14 110 24.0 0 693.6 8 23.7 26.1 24.8 0 080 5.2 14 090 24.0 4 689.2 9 23.3 28.7 26.0 T 120 7.7 11 350 12.9 4 683.3 SG,IC 10 24.4 30.6 29.8 T 030 10.2 13 020 20.8 2 681.9 SG,IC 11 29.2 30.6 29.6 0 070 11.6 14 060 24.0 1 683.3 12 28.3 30.6 29.4 T 060 5.3 13 050 20.2 7 686.2 IC 13 27.2 32.0 30.0 T 360 4.6 8 360 8.6 4 686.0 SG,IF 14 30.0 32.8 32.0 0 090 8.5 10 100 23.7 0 685.1 15 28.7 32.2 30.5 0 080 6.5 10 110 24.0 4 689.0 16 27.0 31.7 30.1 T 120 8.2 12 110 22.4 2 693.2 SG 17 25.0 31.7 27.2 T 110 4.3 11 120 23.1 4 687.9 SG 18 26.1 31.4 30.4 0 150 9.3 13 150 23.3 2 682.5 19 26.4 32.8 30.5 T 170 5.9 13 140 24.0 2 684.4 IC 20 25.3 32.8 27.0 T 210 9.5 14 300 22.3 6 687.1 SG,IC 21 24.4 28.9 27.5 T 290 10.1 15 290 24.0 7 688.9 SG,IC 22 26.1 31.4 30.5 T 310 9.2 15 290 21.5 5 691.4 SG,IC 23 24.4 32.2 28.0 T 050 12.9 16 050 16.2 6 691.0 SG,IF 24 28.3 29.4 29.0 T 030 14.6 16 030 23.1 2 690.6 IC,IF 25 27.5 30.0 28.7 T 030 11.7 16 030 24.0 8 691.2 IC 26 27.5 30.9 29.5 T 030 10.0 15 030 19.2 4 690.1 IC,IF 27 27.0 31.1 29.1 0 070 12.5 15 070 24.0 1 690.1 28 27.2 32.2 28.9 T 040 7.7 18 040 17.0 7 692.2 SG,IC,IF 29 25.3 31.1 26.8 T 340 6.0 10 340 2.9 8 691.0 SG,IF 30 26.7 34.4 32.3 T 110 8.2 14 060 4.5 4 684.3 SG,IF 31 30.9 35.0 32.6 T 050 14.8 17 040 23.8 2 682.9 IC AVG 25.8 29.9 28.1 T 030 9.0 18 040 19.3 4 688.3 28th AVG MONTHLY -28.1 PCPN TRACE NR DAYS CLEAR 12 HIGHEST -20.0 ON 1st SUNSHINE 598.2/80.4% PARTLY CLOUDY 15 LOWEST -35.0 ON 31st CLOUDY 04 HIGH PRESSURE 695.9 ON 6th LOW PRESSURE 681.5 ON 11th 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 26.1 25.8 Avg Wnd Spd Avg Press Min T 29.7 29.9 Max Press Fastest Wnd MPH Avg T 27.9 28.1 Min Press Changes to Daily Data: Max Temp Day 4 5 7 8 11 15 16 19 20 25 26 27 29 31 From: 23.3 22.2 23.9 23.9 29.4 30.6 28.3 26.7 26.1 28.9 27.8 28.9 25.6 32.2 To: 23.1 22.0 23.7 23.7 29.2 28.7 27.0 26.4 25.3 27.5 27.5 27.0 25.3 30.9 Min Temp Day 2 9 13 18 22 26 From: 25.0 26.1 30.6 30.6 31.1 30.0 To: 25.3 28.7 32.0 31.4 31.4 30.9 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 21.9 23.9 25.3 24.7 23.6 24.2 24.4 25.0 24.7 27.5 30.0 29.4 28.9 31.4 31.4 30.0 To: 22.9 24.8 25.8 24.0 23.2 24.6 24.4 24.8 26.0 29.8 29.6 29.4 30.0 32.0 30.5 30.1 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 28.3 28.3 29.7 29.4 26.7 28.6 28.3 28.9 29.4 28.9 30.0 29.7 28.3 30.6 33.6 To: 27.2 30.4 30.5 27.0 27.5 30.5 28.0 29.0 28.7 29.5 29.1 28.9 26.8 32.3 32.6 Number of NCDC observations per day: 8