***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1959 MONTH JUNE ....... ALL TEMPERATURES MINUS C .............. DAY TEMPERATURE C. PCPN AVG WND FASTEST SUN SKY STN WX MAX MIN AVG SPEED MILE SHINE COVER PRESS DIR MPH SPD DIR HRS 01 66.4 70.0 68.4 T 090 11.1 15 110 0.0 0 693.3 02 66.4 68.9 67.7 T 110 13.4 18 110 0.0 0 690.9 03 65.3 70.0 67.9 T 110 10.8 16 090 0.0 0 685.3 04 65.3 69.4 67.4 T 140 9.6 13 070 0.0 0 691.8 05 60.8 66.7 63.8 0 110 10.7 14 110 0.0 0 696.4 06 59.2 64.4 62.8 0 140 10.0 13 140 0.0 0 690.6 07 54.2 61.1 57.5 T 070 8.5 14 050 0.0 0 690.1 08 55.3 62.8 58.9 T 070 13.4 18 050 0.0 0 687.7 09 54.7 58.9 56.9 T 020 16.3 21 050 0.0 0 681.5 10 57.0 61.7 59.0 T 020 13.9 21 020 0.0 0 675.3 11 49.7 61.1 53.6 T 360 15.2 18 360 0.0 6 683.9 12 50.3 63.3 56.6 T 020 10.4 16 360 0.0 2 683.6 13 60.8 67.2 64.5 T 050 6.9 15 020 0.0 1 681.7 14 63.1 70.0 66.8 T 090 6.3 10 090 0.0 0 685.4 15 64.2 70.6 66.3 T 110 11.4 18 110 0.0 0 686.6 16 65.3 68.9 67.0 T 090 11.9 16 070 0.0 0 688.0 17 61.4 68.3 65.9 T 090 12.1 16 070 0.0 0 684.7 18 56.4 62.2 58.3 T 020 15.3 20 020 0.0 0 681.9 19 53.6 58.9 55.2 T 360 15.3 21 020 0.0 5 683.7 20 57.5 63.9 60.2 T 050 9.6 15 020 0.0 5 681.9 21 60.3 68.3 64.7 T 090 10.0 14 090 0.0 1 673.3 22 61.4 68.9 64.9 T 020 10.8 14 020 0.0 1 672.4 23 42.0 62.2 46.7 T 320 15.5 22 320 0.0 8 677.4 24 42.0 45.6 43.5 T 340 17.3 23 360 0.0 8 677.2 25 45.6 51.1 48.3 T 020 13.6 21 360 0.0 4 678.3 26 48.6 59.4 54.7 T 020 20.0 29 020 0.0 2 672.4 27 52.5 60.6 55.7 T 360 20.3 31 020 0.0 5 671.9 28 51.4 60.6 53.6 T 360 15.6 24 360 0.0 6 676.6 29 49.7 57.8 52.5 T 020 11.9 15 020 0.0 2 675.0 30 51.4 60.0 56.1 T 020 12.9 19 020 0.0 1 673.3 AVG 56.4 63.4 59.5 T 020 12.7 31 020 0.0 2 682.4 27th AVG MONTHLY -59.5 PCPN TRACE NR DAYS CLEAR 22 HIGHEST -42.0 ON 23rd,24th SUNSHINE 0.0/ 0% PARTLY CLOUDY 06 LOWEST -70.6 ON 15th CLOUDY 02 HIGH PRESSURE 697.6 ON 5th LOW PRESSURE 670.2 ON 30th NET CHANGE IN SNOWSTAKE FIELD: M 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 Sky Cover changed to Octas. Station Pressure data taken from NCDC data. No data on original LCD. All wind and pressure data taken from original LCD unless otherwise indicated. Prevailing and peak wind direction converted from cardinal direction to degrees. Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 56.7 56.4 Avg Wnd Spd Avg Press 682.2 682.4 Min T Max Press 696.3 697.6 Fastest Wnd MPH Avg T 60.0 59.5 Min Press Changes to Daily Data: Max Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 From: 66.7 66.7 65.6 65.6 61.1 59.4 54.4 55.6 55.0 57.2 50.0 50.6 61.1 63.3 64.4 To: 66.4 66.4 65.3 65.3 60.8 59.2 54.2 55.3 54.7 57.0 49.7 50.3 60.8 63.1 64.2 Day 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 From: 65.6 61.7 56.7 53.9 57.8 60.6 61.7 42.2 42.2 45.9 48.9 52.8 51.7 50.0 51.7 To: 65.3 61.4 56.4 53.6 57.5 60.3 61.4 42.0 42.0 45.6 48.6 52.5 51.4 49.7 51.4 Min Temp No Daily Changes Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 From: 68.3 67.8 67.8 67.5 63.9 61.9 57.8 59.2 56.9 59.4 55.6 56.9 64.2 66.7 67.5 To: 68.4 67.7 67.9 67.4 63.8 62.8 57.5 58.9 56.9 59.0 53.6 56.6 64.5 66.8 66.3 Day 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 From: 67.2 65.0 59.4 56.4 60.8 64.4 65.3 52.2 43.9 48.3 54.2 56.7 56.1 53.9 55.8 To: 67.0 65.9 58.3 55.2 60.2 64.7 64.9 46.7 43.5 48.3 54.7 55.7 53.6 52.5 56.1 Fast MPH Day 2 19 From: 17 20 To: 18 21 Avg MPH Day 29 30 From: 10.4 11.2 To: 11.9 12.9 Number of NCDC observations per day: 24