***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1974 MONTH FEBRUARY .... 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 39.2 41.7 40.5 0 120 10.1 13 120 24.0 0 684.1 2 37.0 41.1 37.5 0 120 15.3 20 110 24.0 1 682.8 3 37.2 38.3 37.8 0 120 11.7 20 120 24.0 0 684.3 4 37.2 38.9 37.7 0 090 11.4 14 110 24.0 0 686.1 5 37.0 38.3 37.6 0 090 10.8 14 090 24.0 0 683.8 6 37.2 39.4 38.6 0 030 11.9 14 050 24.0 1 679.8 7 33.7 40.0 35.9 T 350 6.3 15 010 11.8 8 682.6 G,IF 8 32.8 40.9 37.5 T 120 6.6 9 360 17.8 5 678.2 G,IF 9 35.0 43.1 41.7 T 070 10.5 15 100 20.7 0 670.6 F 10 41.4 43.3 42.5 0 010 7.4 15 070 24.0 3 676.1 11 41.1 43.9 42.7 T 110 6.3 14 020 23.7 3 682.8 C 12 36.4 44.4 40.1 T 360 6.9 13 110 22.5 5 684.1 G 13 26.4 40.0 32.9 T 310 6.3 13 330 0.0 8 682.4 G,IF 14 26.7 39.8 37.4 T 010 7.9 12 330 0.0 8 678.1 G,IF 15 34.4 42.0 38.4 T 350 11.0 14 350 3.0 7 680.2 G,IF 16 34.2 42.2 37.3 T 020 9.8 14 020 6.0 7 683.4 G,IC,IF 17 31.4 39.8 36.5 T 040 9.7 13 020 8.5 8 683.0 G 18 37.8 45.3 43.2 T 060 9.7 15 060 10.1 4 685.0 C 19 41.7 47.5 47.0 0 080 11.2 15 060 24.0 2 686.1 20 47.2 49.4 48.2 0 080 9.7 16 070 24.0 0 683.8 21 45.3 49.4 47.7 T 110 5.5 13 090 24.0 1 682.0 C 22 45.6 50.6 49.6 T 070 6.9 9 100 19.0 4 682.1 C,SG 23 45.9 50.6 48.2 T 060 5.5 10 060 22.5 7 684.8 C 24 45.0 50.0 47.8 0 140 6.4 9 080 1.5 8 678.6 F 25 44.8 50.0 47.0 T 010 13.3 16 010 9.5 8 675.9 C,IF 26 41.4 48.3 42.8 T 010 16.1 21 360 0.0 8 677.0 G,IF 27 41.1 44.8 43.9 T 030 17.2 21 010 0.0 5 680.2 G,IF 28 42.8 47.5 45.4 T 030 15.5 20 030 22.5 1 678.9 G,IF AVG 38.5 43.9 41.6 T 010 9.9 21 010 15.7 4 681.3 26th, 27th AVG MONTHLY -41.6 PCPN TRACE NR DAYS CLEAR 11 HIGHEST -26.4 ON 13th SUNSHINE 439.1 65.3 PARTLY CLOUDY 07 LOWEST -50.6 ON 22nd,23rd CLOUDY 10 HIGH PRESSURE 687.4 ON 1st LOW PRESSURE 669.7 ON 10th 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 -26.7 -26.4 Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 40.4 38.5 Avg Wnd Spd 9.7 9.9 Avg Press Min T 43.5 43.9 Max Press Fastest Wnd MPH Avg T 42.0 41.6 Min Press Changes to Daily Data: Max Temp Day 1 2 5 7 10 12 13 16 17 21 23 25 26 From: 39.4 37.2 37.2 34.4 69.4 40.0 28.9 38.3 34.4 48.3 49.4 47.2 43.9 To: 39.2 37.0 37.0 33.7 41.4 36.4 26.4 34.2 31.4 45.3 45.9 44.8 41.4 Min Temp Day 8 9 14 15 17 18 19 27 28 From: 38.9 42.2 38.3 41.1 37.8 42.2 47.2 44.4 46.1 To: 40.9 43.1 39.8 42.0 39.8 45.3 47.5 44.8 47.5 Avg Temp Day 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 From: 40.6 39.2 38.1 37.8 38.3 37.2 35.8 38.6 56.4 42.5 42.2 34.4 32.5 37.8 40.3 36.1 To: 40.5 37.5 37.7 37.6 38.6 35.9 37.5 41.7 42.5 42.7 40.1 32.9 37.4 38.4 37.3 36.6 Day 18 19 20 21 22 23 24 25 26 27 28 From: 40.0 44.4 48.3 48.9 48.1 50.0 47.5 48.6 46.1 42.8 44.4 To: 43.2 47.0 48.2 47.7 49.6 48.2 47.8 47.0 42.8 43.9 45.4 Number of NCDC observations per day: 1st to 15th, 8 obs 16th, 6 obs 17th to 28th, 4 obs