***Corrected Winter 2011*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1975 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 42.0 62.8 45.9 0 020 27.3 34 020 0.0 6 680.3 BS 2 41.1 45.9 43.8 0 020 23.8 36 020 0.0 6 679.7 BS 3 40.6 48.3 44.9 0 010 25.1 30 020 0.0 6 687.6 BS 4 41.7 45.6 44.5 0 020 23.6 32 360 0.0 6 693.5 BS 5 42.8 47.5 45.7 0 010 18.6 28 020 0.0 6 698.0 BS 6 37.8 49.4 39.1 0 010 21.6 32 020 0.0 6 689.5 BS 7 34.4 40.0 38.2 0 360 19.2 27 360 0.0 5 697.4 BS 8 37.8 49.2 45.6 0 360 14.7 22 360 0.0 2 698.6 BS 9 43.9 57.0 54.3 0 080 9.8 18 360 0.0 1 697.0 10 49.2 58.3 52.2 0 040 8.9 16 020 0.0 2 701.1 11 48.3 55.6 51.8 0 050 10.0 16 040 0.0 1 702.6 12 46.1 57.5 52.5 0 050 10.1 24 020 0.0 1 700.7 13 49.4 60.6 54.6 0 020 10.1 20 360 0.0 0 699.6 14 50.0 59.4 52.9 0 090 8.1 16 020 0.0 0 700.6 15 45.3 54.4 49.0 0 040 13.8 23 070 0.0 2 697.1 16 42.8 53.9 48.5 0 030 19.9 25 020 0.0 2 691.9 BS 17 47.2 55.9 53.4 0 040 14.1 24 020 0.0 0 689.2 BS 18 51.7 60.8 59.7 0 070 13.9 16 090 0.0 1 684.2 19 54.2 61.7 56.1 0 010 12.9 18 070 0.0 1 683.9 20 52.8 61.4 57.2 0 080 10.1 23 360 0.0 0 683.0 BS 21 52.8 68.6 65.8 0 150 7.5 10 090 0.0 1 675.8 22 64.4 72.8 70.8 0 090 5.2 12 140 0.0 0 679.8 23 66.1 73.3 69.2 0 080 6.7 8 070 0.0 0 686.2 24 66.7 71.4 69.2 0 110 9.2 12 110 0.0 2 682.4 25 64.2 72.8 66.8 T 070 9.2 13 070 0.0 1 685.6 IC 26 43.6 69.4 54.0 T 040 16.9 24 090 0.0 2 683.0 IC 27 42.8 63.3 50.6 0 040 16.7 29 040 0.0 2 685.9 BS 28 48.3 59.4 54.6 0 040 12.4 17 040 0.0 2 687.9 BS 29 52.2 65.8 62.8 0 050 9.8 17 040 0.0 1 688.6 30 62.2 66.1 64.5 0 080 10.1 15 090 0.0 0 684.6 31 60.8 65.6 63.3 T 060 9.2 14 040 0.0 1 685.2 IC AVG 49.1 59.2 54.2 T 040 13.8 36 020 0.0 2 689.7 2nd AVG MONTHLY -54.2 PCPN TRACE NR DAYS CLEAR 24 HIGHEST -34.4 ON 7th SUNSHINE 0.0/ 0% PARTLY CLOUDY 07 LOWEST -73.3 ON 23rd CLOUDY 00 HIGH PRESSURE 703.0 ON 12th LOW PRESSURE 672.9 ON 22nd NET CHANGE IN SNOWSTAKE FIELD: M SNOWSTAKE DATA NOT AVAILABLE. 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 50.2 49.1 Avg Wnd Spd 13.9 13.8 Avg Press 689.5 689.7 Min T 58.4 59.2 Max Press 702.8 703.0 Fastest Wnd MPH Avg T 54.3 54.2 Min Press Changes to Daily Data: Max Temp Day 1 10 15 19 25 26 31 From: 43.9 49.4 50.6 55.6 67.2 62.2 62.8 To: 42.0 49.2 45.3 54.2 64.2 43.6 60.8 Min Temp Day 2 5 8 9 12 17 18 20 21 24 29 From: 45.0 47.2 43.9 54.4 55.6 53.3 60.0 58.9 66.1 70.6 63.3 To: 45.9 47.5 49.2 57.0 57.5 55.9 60.8 61.4 68.6 71.4 65.8 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 53.3 43.1 44.4 43.6 45.0 43.6 37.2 40.8 49.2 53.9 51.9 50.8 55.0 54.7 52.5 48.3 To: 45.9 43.8 44.9 44.5 45.7 39.1 38.2 45.6 54.3 52.2 51.8 52.5 54.6 52.9 49.0 48.5 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 50.3 55.8 58.6 55.8 59.4 68.6 69.7 68.6 70.0 65.8 53.1 53.9 57.8 64.2 64.2 To: 53.4 59.7 56.1 57.2 65.8 70.8 69.2 69.2 66.8 54.0 50.6 54.6 62.8 64.5 63.3 Number of NCDC observations per day: 4