***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1964 MONTH JULY ....... 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 59.4 67.2 64.6 0 070 3.5 8 030 0.0 1 691.8 02 62.2 66.7 63.8 0 060 3.5 9 030 0.0 2 692.8 03 61.1 68.9 64.8 0 030 3.5 12 020 0.0 0 692.6 04 65.0 68.9 66.6 0 120 10.4 11 120 0.0 0 692.0 05 55.6 66.1 58.2 0 110 2.3 9 130 0.0 1 693.2 06 43.1 61.7 52.7 0 340 10.4 18 310 0.0 3 694.4 07 42.0 50.6 44.8 T 340 17.3 20 330 0.0 7 696.4 08 43.6 54.4 48.4 T 360 15.0 22 350 0.0 3 699.1 09 53.3 57.2 55.0 0 100 11.5 14 090 0.0 0 687.4 10 48.6 61.1 56.2 0 050 10.4 20 030 0.0 0 692.2 11 45.9 55.6 51.6 T 030 12.7 18 010 0.0 1 704.4 12 55.0 61.1 57.4 0 100 9.2 14 100 0.0 0 700.8 13 60.6 63.3 61.9 0 130 12.7 16 120 0.0 0 689.8 14 50.3 63.3 59.3 0 130 9.2 16 120 0.0 0 694.1 15 48.1 52.2 49.6 T 130 5.8 12 150 0.0 2 695.2 16 53.3 62.2 58.6 0 120 9.2 14 130 0.0 0 690.2 17 62.2 70.0 67.1 0 110 9.2 15 120 0.0 0 691.7 18 62.2 67.8 64.7 0 040 6.9 10 030 0.0 0 696.0 19 63.9 69.4 66.9 0 100 6.9 12 110 0.0 0 691.8 20 69.4 72.2 71.1 0 090 4.6 14 050 0.0 0 683.2 21 56.7 70.6 62.2 0 360 16.1 21 360 0.0 6 677.7 22 50.9 56.1 53.2 0 360 17.3 20 010 0.0 6 676.2 23 49.2 61.7 55.4 0 360 20.7 24 360 0.0 6 682.2 24 39.8 52.8 44.8 0 320 16.1 24 330 0.0 4 689.2 25 35.3 40.0 37.8 T 310 20.9 26 310 0.0 8 695.3 26 35.0 40.6 38.4 0 350 20.7 26 310 0.0 8 696.6 27 41.4 50.0 46.1 T 020 12.7 18 010 0.0 5 696.8 28 48.3 51.7 50.0 0 030 15.0 20 020 0.0 1 694.6 29 53.9 58.9 57.4 0 100 13.8 21 100 0.0 0 692.7 30 58.9 63.9 61.5 0 090 13.8 15 130 0.0 0 687.6 31 52.8 64.4 59.7 0 080 17.3 19 070 0.0 1 678.3 AVG 52.5 60.3 56.4 T 360 11.6 26 310 0.0 2 691.5 25th,26th AVG MONTHLY -56.4 PCPN TRACE NR DAYS CLEAR 21 HIGHEST -35.0 ON 26th SUNSHINE 0.0/ 0% PARTLY CLOUDY 07 LOWEST -72.2 ON 20th CLOUDY 03 HIGH PRESSURE 706.4 ON 11th LOW PRESSURE 675.9 ON 22nd NET CHANGE IN SNOWSTAKE FIELD: +1.23 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 Sky Cover changed to Octas. Station Pressure converted from inches of Hg to millibars. All wind and pressure data taken from original LCD unless otherwise indicated. Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 52.6 52.5 Avg Wnd Spd Avg Press Min T 60.2 60.3 Max Press 704.4 706.4 Fastest Wnd MPH Avg T Min Press Changes to Daily Data: Max Temp Day 1 5 6 7 8 10 11 14 15 22 23 24 25 27 From: 61.1 56.1 43.3 42.2 43.9 48.9 46.1 50.6 48.3 51.1 49.4 40.0 35.6 41.7 To: 59.4 55.6 43.1 42.0 43.6 48.6 45.9 50.3 48.1 50.9 49.2 39.8 35.3 41.4 Min Temp Day 1 17 28 From: 63.3 69.4 50.6 To: 67.2 70.0 51.7 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 From: 62.2 64.4 65.0 67.2 61.1 52.8 46.7 49.4 55.6 55.0 50.6 58.3 61.7 57.2 To: 64.6 63.8 64.8 66.6 58.2 52.7 44.8 48.4 55.0 56.2 51.6 57.4 61.9 59.3 Day 15 16 17 18 19 21 22 23 24 26 28 29 30 31 From: 50.6 57.8 66.1 65.0 67.2 63.9 53.3 55.6 46.1 37.8 49.4 56.7 70.0 58.9 To: 49.6 58.6 67.1 64.7 66.9 62.2 53.2 55.4 44.8 38.4 50.0 57.4 61.5 59.7 Fast MPH Day 13 20 From: 15 11 To: 16 14 Avg Press Day: 12 13 18 26 From: 699.8 695.4 692.6 0.0 To: 700.8 689.8 696.0 696.6 Number of NCDC observations per day: 8