***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1980 MONTH FEBRUARY .... 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 28.9 35.8 31.0 0 030 4.0 7 030 14.7 7 688.4 2 28.6 36.0 34.1 T 110 5.1 9 070 7.3 6 687.5 3 32.0 38.0 36.5 0 120 2.3 8 040 24.0 4 688.5 4 32.0 38.0 33.6 T 290 3.6 9 270 23.9 6 687.9 5 32.5 37.4 34.6 T 010 5.0 9 010 21.0 6 686.6 6 30.3 39.1 36.0 T 090 4.4 9 030 16.9 6 684.8 7 34.6 42.0 41.2 T 090 2.9 8 070 17.0 1 684.0 8 38.0 43.4 40.0 T 180 2.6 7 070 24.0 4 685.3 9 32.8 41.7 36.4 T 170 1.5 10 190 20.8 5 688.0 10 25.0 39.0 30.7 T 260 8.3 16 340 12.2 7 688.0 11 25.0 37.0 29.5 T 260 9.5 24 270 3.3 7 683.8 12 28.3 41.0 40.0 T 090 6.9 24 020 14.8 4 687.9 13 39.8 42.8 42.1 0 090 10.9 16 090 24.0 1 690.4 14 40.0 42.9 40.9 0 100 8.1 16 120 24.0 0 688.8 15 40.0 43.0 41.9 0 120 6.9 16 130 24.0 3 690.5 16 34.3 43.4 36.5 0 160 3.1 14 120 17.8 6 689.6 17 33.0 43.0 40.1 T 150 8.9 15 140 17.3 3 687.1 18 36.0 44.6 41.0 T 090 9.2 14 080 15.9 6 687.4 19 34.9 47.4 46.1 0 120 10.9 18 110 18.3 1 684.5 20 42.0 47.5 43.5 0 120 15.5 26 130 24.0 3 683.4 21 40.2 47.0 43.1 T 030 5.1 35 120 15.4 5 688.7 22 41.9 46.0 45.5 T 130 6.9 10 130 21.1 2 690.2 23 43.2 47.2 45.7 T 120 8.3 18 140 24.0 2 687.9 24 40.0 47.9 45.3 T 090 10.9 16 120 24.0 5 688.3 25 40.1 47.8 44.6 T 010 7.8 17 090 9.5 8 689.4 26 41.9 48.0 46.0 T 090 8.6 17 020 6.6 7 690.7 27 44.2 48.3 46.5 T 110 11.2 20 140 18.8 4 686.3 28 44.6 50.0 49.2 T 090 11.8 26 120 19.7 1 678.7 29 48.8 52.0 50.6 T 050 12.0 20 100 18.9 3 674.3 AVG 36.3 43.3 40.4 T 090 7.3 35 120 18.0 4 687.0 21st AVG MONTHLY -40.4 PCPN TRACE NR DAYS CLEAR 10 HIGHEST -25.0 ON 10th,11th SUNSHINE 523.2/75.2% PARTLY CLOUDY 14 LOWEST -52.0 ON 29th CLOUDY 05 HIGH PRESSURE 691.1 ON 16th LOW PRESSURE 673.9 ON 29th NET CHANGE IN SNOWSTAKE FIELD: +0.40 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 -52.0 -56.0 Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 36.8 36.3 Avg Wnd Spd 6.8 7.3 Avg Press 687.0 686.8 Min T 42.9 43.3 Max Press 690.2 691.1 Fastest Wnd MPH Avg T 39.8 40.4 Min Press Changes to Daily Data: Max Temp Day 1 4 8 10 20 24 From: 30.3 32.5 38.6 31.0 42.2 44.7 To: 28.9 32.0 38.0 25.0 42.0 40.0 Min Temp Day 2 3 7 11 12 13 15 17 21 22 23 25 28 From: 34.1 37.4 41.3 31.1 40.6 42.6 42.2 41.7 46.3 47.5 46.8 47.6 49.3 To: 36.0 38.0 42.0 37.0 41.0 42.8 43.0 43.0 47.0 46.0 47.2 47.8 50.0 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 33.0 31.4 34.7 35.3 35.0 34.7 38.0 41.0 37.3 35.0 28.1 34.5 41.2 41.5 41.1 38.9 To: 31.0 34.1 36.5 33.6 34.6 36.0 41.2 40.0 36.4 30.7 29.5 40.0 42.1 40.9 41.9 36.5 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 From: 37.4 40.3 41.2 44.9 43.3 44.7 45.0 46.3 43.8 45.0 46.3 47.0 50.4 To: 40.1 41.0 46.1 43.5 43.1 45.5 45.7 45.3 44.6 46.0 46.5 49.2 50.6 Number of NCDC observations per day: day 1 - day 10: 8 day 11: 7 day 12 - day 29: 4