***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1984 MONTH APRIL .... 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 58.3 66.2 62.3 0 060 8.1 11 060 0.0 8 675.9 2 57.9 65.2 64.2 0 070 5.6 15 030 0.0 5 678.3 3 62.9 66.6 66.0 0 080 5.8 12 080 0.0 0 679.6 4 63.8 67.6 66.5 0 080 4.5 8 080 0.0 4 680.5 5 61.6 67.9 64.6 T 040 7.4 13 060 0.0 8 680.3 6 52.2 66.5 57.2 T 030 11.7 16 030 0.0 8 685.1 7 51.8 59.4 56.6 T 030 11.5 18 020 0.0 6 686.6 8 55.3 62.7 59.7 T 070 6.3 15 030 0.0 4 681.7 9 59.3 64.4 63.4 0 080 6.5 12 070 0.0 0 680.1 10 61.8 69.4 66.3 T 120 6.9 12 080 0.0 0 672.1 11 66.1 69.2 67.9 0 060 6.6 15 050 0.0 0 668.0 12 61.0 70.7 64.4 T 120 8.9 15 110 0.0 0 674.2 13 62.1 68.8 67.2 0 090 6.4 14 110 0.0 0 680.3 14 52.7 69.8 60.7 T 350 6.1 11 080 0.0 6 684.5 15 45.0 64.0 48.8 T 350 8.1 17 010 0.0 6 686.7 16 44.6 58.3 49.6 T 360 7.8 14 360 0.0 6 686.7 17 48.6 61.0 58.3 T 060 6.0 13 360 0.0 1 683.1 18 56.4 62.7 60.9 T 060 6.5 12 060 0.0 0 680.1 19 58.9 65.5 63.5 T 080 7.2 12 090 0.0 0 673.5 20 61.4 68.3 64.9 T 070 6.9 12 060 0.0 0 670.3 21 60.5 69.1 62.2 T 040 8.6 11 040 0.0 2 675.4 22 54.4 61.8 56.7 T 040 12.8 18 020 0.0 6 680.1 23 53.9 63.3 61.9 T 060 6.9 22 020 0.0 0 682.4 24 61.4 65.3 63.9 T 070 6.8 13 060 0.0 0 680.6 25 59.9 67.7 65.7 T 060 6.9 14 060 0.0 4 684.9 26 56.6 68.0 60.0 T 030 7.0 16 030 0.0 6 690.0 27 46.6 65.3 49.5 T 350 7.5 17 350 0.0 8 690.4 28 46.5 58.6 54.0 T 090 4.3 15 350 0.0 4 688.4 29 42.7 58.9 50.0 T 140 6.2 12 130 0.0 5 680.8 30 42.3 64.4 60.2 T 120 9.0 15 080 0.0 1 676.3 AVG 55.6 65.2 60.6 T 060 7.4 22 020 0.0 3 680.6 23rd AVG MONTHLY -60.6 PCPN TRACE NR DAYS CLEAR 14 HIGHEST -42.3 ON 30th SUNSHINE 0.0/ 0% PARTLY CLOUDY 12 LOWEST -70.7 ON 12th CLOUDY 04 HIGH PRESSURE 691.9 ON 27th LOW PRESSURE 666.4 ON 11th NET CHANGE IN SNOWSTAKE FIELD: +0.80 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 Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 56.8 55.6 Avg Wnd Spd 7.3 7.4 Avg Press Min T 64.3 65.2 Max Press Fastest Wnd MPH Avg T 60.6 60.6 Min Press 666.5 666.4 Changes to Daily Data: Max Temp Day 1 4 5 6 14 15 21 22 25 26 27 29 From: 62.3 65.8 63.6 58.9 63.7 48.7 61.1 55.8 63.4 56.7 48.3 42.9 To: 58.3 63.8 61.6 52.2 52.7 45.0 60.5 54.4 59.9 56.6 46.6 42.7 Min Temp Day 8 9 10 16 17 19 20 25 30 From: 59.3 64.2 66.6 49.7 59.7 64.0 65.7 65.2 60.8 To: 62.7 64.4 69.4 58.3 61.0 65.5 68.3 67.7 64.4 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 64.3 61.5 64.8 66.7 65.8 62.7 55.6 57.3 61.8 64.2 67.7 65.8 65.5 66.8 56.4 47.2 To: 62.3 64.2 66.0 66.5 64.6 57.2 56.6 59.7 63.4 66.3 67.9 64.4 67.2 60.7 48.8 49.6 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 From: 54.2 59.6 61.5 63.5 65.1 58.8 58.6 63.4 64.3 62.4 56.8 52.5 50.9 51.5 To: 58.3 60.9 63.5 64.9 62.2 56.7 61.9 63.9 65.7 60.0 49.5 54.0 50.0 60.2 Number of NCDC observations per day: 8