***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1981 MONTH MAY .... 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 43.0 69.9 51.2 T 250 2.0 9 120 0.0 7 686.3 2 41.1 52.7 46.2 T 330 7.7 13 330 0.0 8 682.9 3 30.8 49.5 38.4 T 250 10.3 18 240 0.0 8 682.4 4 31.8 47.3 46.2 T 360 7.1 20 350 0.0 8 681.9 5 43.8 60.9 58.0 T 110 8.5 14 120 0.0 0 680.5 6 55.1 64.0 62.5 0 090 10.8 17 100 0.0 0 678.5 7 60.0 66.7 62.6 0 100 7.9 16 090 0.0 3 675.5 8 59.9 64.2 61.5 0 060 7.9 13 050 0.0 2 671.9 9 59.4 63.4 59.8 0 030 14.7 18 030 0.0 5 672.6 10 52.0 60.1 52.8 T 010 21.8 35 010 0.0 7 671.4 11 49.0 54.0 52.0 0 010 17.2 32 010 0.0 3 677.4 12 48.7 54.9 51.7 0 010 17.2 23 010 0.0 3 685.6 13 51.3 56.0 55.5 0 030 15.4 24 030 0.0 8 684.9 14 44.0 57.9 47.5 T 360 20.0 27 360 0.0 8 685.5 15 33.9 48.4 37.6 T 320 21.3 32 330 0.0 8 688.5 16 31.7 38.7 33.3 T 290 17.8 35 300 0.0 8 689.8 17 31.4 46.1 39.8 T 290 6.0 36 290 0.0 8 684.0 18 38.8 53.0 48.5 T 350 6.3 12 230 0.0 6 673.6 19 46.0 55.0 53.2 T 010 6.3 20 350 0.0 8 671.3 20 51.9 62.1 60.0 T 100 8.3 13 010 0.0 0 677.1 21 57.9 70.0 67.5 0 110 8.0 17 100 0.0 0 676.7 22 56.0 70.4 64.7 0 030 10.6 16 080 0.0 2 679.1 23 40.0 69.2 45.3 T 360 20.1 30 360 0.0 8 681.3 24 38.8 50.2 41.8 T 350 19.6 32 360 0.0 8 685.7 25 39.5 52.0 48.8 T 010 20.9 29 010 0.0 8 680.8 26 48.3 57.0 55.5 T 020 14.7 29 360 0.0 4 680.1 27 55.3 63.0 61.2 T 050 7.7 23 020 0.0 0 682.1 28 59.9 67.0 65.2 0 110 6.2 13 070 0.0 0 679.9 29 60.0 67.5 63.5 0 060 5.3 14 090 0.0 4 682.2 30 59.0 66.5 60.4 0 070 5.1 12 060 0.0 3 681.6 31 58.4 63.9 62.0 0 060 5.4 13 060 0.0 2 680.7 AVG 47.6 58.8 53.4 T 010 11.6 36 290 0.0 5 680.4 17th AVG MONTHLY -53.4 PCPN TRACE NR DAYS CLEAR 09 HIGHEST -30.8 ON 3rd SUNSHINE 0.0/ 0% PARTLY CLOUDY 08 LOWEST -70.4 ON 22th CLOUDY 14 HIGH PRESSURE 690.6 ON 16th LOW PRESSURE 668.7 ON 19th,20th NET CHANGE IN SNOWSTAKE FIELD: +3.20 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 Monthly Averages: (All temps are Minus C) From To From To From To Max T 49.2 47.6 Avg Wnd Spd 11.5 11.6 Avg Press 680.3 680.4 Min T 58.0 58.8 Max Press Fastest Wnd MPH Avg T 53.6 53.4 Min Press Changes to Daily Data: Max Temp Day 1 2 7 9 10 11 14 15 22 23 29 From: 52.5 42.3 61.6 59.9 52.1 51.1 48.4 38.7 66.7 48.5 64.1 To: 43.0 41.1 60.0 59.4 52.0 49.0 44.0 33.9 56.0 40.0 60.0 Min Temp Day 6 13 17 18 19 21 25 26 28 31 From: 60.9 54.9 38.9 52.8 54.7 66.7 50.0 55.5 65.1 62.3 To: 64.0 56.0 46.1 53.0 55.0 70.0 52.0 57.0 67.0 63.9 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 61.2 47.5 40.2 39.5 52.4 58.0 64.2 62.0 61.7 56.1 52.5 51.8 53.1 53.2 43.6 35.2 To: 51.2 46.2 38.4 46.2 58.0 62.5 62.6 61.5 59.8 52.8 52.0 51.7 55.5 47.5 37.6 33.3 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 35.2 45.8 50.4 57.0 62.3 68.6 58.8 44.5 44.8 51.9 59.2 62.5 65.8 62.8 60.4 To: 39.8 48.5 53.2 60.0 67.5 64.7 45.3 41.8 48.8 55.5 61.3 65.2 63.5 60.4 62.0 Number of NCDC observations per day: 4