***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1974 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 48.3 58.1 55.6 0 050 7.5 16 050 M 0 681.4 2 54.4 63.9 61.5 0 120 14.7 16 120 M 0 677.9 3 59.4 68.6 66.7 0 130 15.5 22 120 M 0 670.3 SB,IF 4 65.8 72.8 70.0 0 030 9.8 18 130 M 2 670.6 5 56.4 71.7 58.6 T 040 12.4 15 040 M 4 672.1 SG,IF 6 56.1 67.5 66.0 T 110 12.1 16 110 M 1 665.9 SG,IF 7 64.4 71.1 69.8 0 130 14.4 21 130 M 0 665.3 8 67.0 71.1 68.7 0 130 17.3 25 040 M 0 666.6 BS 9 59.2 71.7 66.4 0 120 12.4 23 130 M 0 664.3 BS 10 58.3 68.9 62.5 T 050 13.0 17 050 M 1 665.7 IC 11 59.4 66.7 63.6 T 080 13.5 16 050 M 0 671.9 IC 12 57.8 66.7 59.6 0 030 13.8 18 030 M 0 677.6 BS 13 57.0 64.7 61.1 0 120 13.5 18 080 M 0 675.0 BS 14 49.2 65.0 54.9 0 030 15.5 17 050 M 1 683.9 BS 15 45.3 57.8 49.1 0 010 16.9 21 030 M 6 689.8 BS 16 42.5 53.3 46.3 T 360 12.6 21 020 M 4 683.9 SG,BS,IF 17 42.8 64.7 61.5 0 110 13.3 16 070 M 0 685.3 BS 18 53.6 65.6 57.1 0 120 15.8 20 130 M 0 693.9 BS 19 52.0 58.9 53.8 0 120 17.2 21 120 M 0 695.4 BS 20 50.6 59.2 55.8 0 110 20.1 24 120 M 0 682.9 BS 21 53.9 65.3 63.9 0 110 14.7 23 120 M 0 678.8 BS 22 62.2 66.1 64.0 0 080 14.7 20 070 M 1 683.2 BS 23 53.6 65.6 60.7 0 040 15.3 18 080 M 0 683.7 BS 24 48.1 63.3 50.3 0 020 19.0 21 020 M 0 683.8 BS 25 47.8 58.1 55.6 0 110 17.8 23 020 M 1 683.6 BS 26 55.0 65.6 61.8 0 020 15.3 21 080 M 0 680.4 BS 27 42.5 65.6 50.1 0 020 16.9 22 020 M 1 695.8 BS 28 34.8 53.3 37.9 0 030 21.3 24 030 M 4 701.6 BS 29 34.4 40.0 37.8 T 020 23.6 26 020 M 2 700.1 SG,BS,IF 30 37.2 46.4 41.0 T 020 22.4 32 020 M 5 696.1 SG,BS,IF 31 38.3 56.4 54.9 T 080 12.6 27 010 M 0 698.3 SG,IF AVG 51.8 63.0 57.6 T 020 15.3 32 020 M 1 681.4 30th AVG MONTHLY -57.6 PCPN TRACE NR DAYS CLEAR 26 HIGHEST -34.4 ON 29th SUNSHINE M PARTLY CLOUDY 05 LOWEST -72.8 ON 4th CLOUDY 00 HIGH PRESSURE 701.7 ON 28th LOW PRESSURE 661.0 ON 7th NET CHANGE IN SNOWSTAKE FIELD: 9.99 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 Extremes: From To Max T Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 53.4 51.8 Avg Wnd Spd 15.2 15.3 Avg Press 681.1 681.4 Min T 62.2 63.0 Max Press Fastest Wnd MPH Avg T 57.8 57.6 Min Press Changes to Daily Data: Max Temp Day 4 5 8 9 13 14 15 16 18 19 23 24 27 28 From: 66.7 56.7 67.2 66.7 57.2 56.7 47.8 42.8 58.3 52.8 63.3 48.9 52.2 38.9 To: 65.8 56.4 67.0 59.2 57.0 49.2 45.3 42.5 53.6 52.0 53.6 48.1 42.5 34.8 Min Temp Day 1 3 6 13 17 20 21 25 30 31 From: 54.4 66.7 66.7 63.9 61.1 55.0 65.0 55.6 40.0 56.1 To: 58.1 68.6 67.5 64.7 64.7 59.2 65.3 58.1 46.4 56.4 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 51.4 59.2 63.1 69.7 64.2 61.4 67.8 69.2 69.2 63.6 63.1 62.2 60.6 60.8 52.8 48.1 To: 55.6 61.5 66.7 70.0 58.6 66.0 69.8 68.7 66.4 62.5 63.6 59.6 61.1 54.9 49.1 46.3 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 51.9 61.9 55.8 52.8 59.4 64.2 64.4 56.1 51.7 60.3 58.9 46.1 37.2 38.6 47.2 To: 61.5 57.1 53.8 55.8 63.9 64.0 60.7 50.3 55.6 61.8 50.1 37.9 37.8 41.0 54.9 Number of NCDC observations per day: 4