***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1964 MONTH MARCH ....... 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 42.8 50.0 46.7 0 080 10.4 14 130 M 1 683.0 02 46.1 52.2 49.8 0 090 9.2 14 030 M 0 682.4 03 38.1 51.1 44.9 0 020 9.2 14 360 M 6 687.9 04 28.3 37.2 32.1 0 270 8.1 14 360 M 8 690.1 05 35.0 47.8 41.7 0 350 8.1 14 340 M 1 688.1 06 45.6 50.6 49.6 T 070 8.1 11 060 M 0 685.5 07 50.3 52.8 51.9 0 030 13.8 18 020 M 1 682.4 08 51.7 53.9 52.5 0 020 18.4 21 030 M 0 680.7 09 50.9 55.0 51.4 0 020 18.4 20 020 M 0 683.6 10 52.2 55.6 53.8 0 040 15.0 17 030 M 0 684.4 11 52.8 55.6 54.4 0 040 13.8 16 040 M 4 684.6 12 55.0 62.2 58.7 0 100 9.2 14 040 M 3 682.6 13 58.9 62.2 61.2 0 080 10.4 13 090 M 1 682.6 14 58.9 61.7 60.6 0 050 10.4 14 040 M 1 682.8 15 49.7 60.6 56.6 0 010 5.8 14 350 M 6 687.9 16 39.4 48.9 43.3 T 320 18.4 22 330 M 5 688.2 17 43.1 53.3 48.3 0 360 11.5 14 360 M 4 688.9 18 50.6 56.7 54.2 0 030 8.1 14 120 M 2 686.5 19 49.7 53.9 51.8 0 360 9.2 13 360 M 5 687.1 20 40.9 51.7 44.1 0 330 8.1 13 360 M 8 687.9 21 40.6 55.0 47.9 0 240 5.8 9 280 M 6 686.9 22 47.2 58.9 55.6 0 100 10.4 16 010 M 2 675.4 23 56.7 61.7 59.0 0 070 16.1 22 010 0.0 0 665.9 24 56.1 57.8 57.0 0 020 19.6 23 020 0.0 2 670.0 25 57.8 61.7 60.2 0 030 10.4 18 330 0.0 1 670.1 26 57.2 63.3 59.8 0 020 13.8 19 360 0.0 3 669.4 27 53.3 57.2 54.5 0 360 16.1 22 360 0.0 8 674.1 28 55.6 60.0 57.7 0 070 12.8 16 110 0.0 4 672.7 29 58.9 64.4 61.6 0 110 15.0 21 110 0.0 1 664.7 30 56.7 62.8 59.0 0 020 16.1 18 120 0.0 2 666.1 31 60.6 63.9 63.3 0 030 12.7 16 020 0.0 1 669.5 AVG 49.7 56.1 53.0 T 020 12.0 23 020 M 3 680.4 24th AVG MONTHLY -53.0 PCPN TRACE NR DAYS CLEAR 18 HIGHEST -28.3 ON 4th SUNSHINE M PARTLY CLOUDY 10 LOWEST -64.4 ON 29th CLOUDY 03 HIGH PRESSURE 690.8 ON 4th LOW PRESSURE 662.4 ON 29th,30th NET CHANGE IN SNOWSTAKE FIELD: +1.24 inches Sunset occurred at 1643UTC on day 22. Sunset based on US Naval Observatory time. Insufficient Data available for Sunshine Hours Computation. 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 49.8 49.7 Avg Wnd Spd Avg Press Min T Max Press Fastest Wnd MPH Avg T 52.9 53.0 Min Press Changes to Daily Data: Max Temp Day 3 7 9 11 15 17 19 20 From: 38.3 50.6 51.1 53.3 50.0 43.3 50.0 41.1 To: 38.1 50.3 50.9 52.8 49.7 43.1 49.7 40.9 Min Temp No Daily Changes Avg Temp Day 2 3 4 5 6 7 8 9 10 12 13 14 15 16 From: 48.9 45.0 32.8 41.1 47.8 51.7 52.8 53.3 53.9 58.9 60.6 60.0 55.6 43.9 To: 49.8 44.9 32.1 41.7 49.6 51.9 52.5 51.4 53.8 58.7 61.2 60.6 56.6 43.3 Day 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 53.3 52.2 47.8 47.8 52.8 58.9 57.2 59.4 60.6 55.0 57.8 61.7 59.4 62.2 To: 54.2 51.8 44.1 47.9 55.6 59.0 57.0 60.2 59.8 54.5 57.7 61.6 59.0 63.3 Fast MPH Day 14 19 26 From: 13 11 18 To: 14 13 19 Avg Press Day 7 24 31 From: 702.5 660.2 0.0 To: 682.4 670.0 669.5 Number of NCDC observations per day: 8