***Corrected Winter 2010*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1969 MONTH MARCH .... 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 49.7 52.2 50.7 T 030 14.7 18 030 16.0 4 686.3 IC,IF 2 44.2 52.8 46.0 T 020 16.4 20 020 15.4 7 688.4 SG 3 44.4 49.7 48.2 T 020 15.8 21 020 0.0 6 688.1 SG,BS 4 47.2 50.9 49.7 T 030 16.4 21 030 3.2 7 684.4 SG,BS 5 48.9 54.4 52.8 0 060 10.9 17 030 5.1 6 683.0 BS 6 52.2 56.7 56.0 0 080 11.8 14 040 3.1 1 681.9 7 55.0 58.3 57.3 0 100 11.8 15 080 13.1 1 676.9 8 56.7 61.1 60.4 0 100 13.3 17 100 24.0 0 671.4 9 60.0 62.2 61.7 0 120 11.8 17 100 24.0 0 672.6 10 58.3 62.8 59.6 0 120 13.5 18 130 24.0 0 677.8 11 58.3 61.7 59.4 0 120 16.7 18 120 24.0 0 676.4 12 58.9 63.3 61.5 0 120 20.4 22 120 24.0 1 675.7 IF,BS 13 60.6 65.6 64.6 0 110 15.2 23 120 24.0 1 676.7 BS 14 63.3 65.6 64.7 0 110 13.8 18 110 24.0 0 677.4 15 62.2 66.1 63.7 0 100 15.5 20 100 24.0 0 681.8 16 52.8 64.4 55.8 0 110 17.8 20 110 24.0 4 686.0 17 52.2 60.0 57.4 0 070 13.5 22 060 20.0 3 684.3 18 58.9 61.1 60.4 0 110 12.7 18 100 18.0 4 677.2 19 56.1 61.1 57.1 0 050 16.4 21 030 5.2 5 679.3 20 55.6 59.4 58.0 0 100 18.4 23 050 4.1 3 681.9 21 55.6 61.7 59.5 0 110 16.4 21 080 2.1 3 675.0 BS 22 58.9 65.0 64.3 0 080 13.0 22 100 0.0 2 679.7 BS 23 56.1 66.1 59.7 0 020 14.1 18 020 0.0 5 683.8 24 53.3 62.8 58.2 0 020 11.5 21 030 0.0 4 684.3 BS 25 56.7 62.8 59.7 0 110 12.0 20 700 0.0 4 682.1 26 53.9 61.1 58.2 0 110 17.0 22 110 0.0 3 682.5 27 57.8 62.8 60.8 0 110 18.4 25 110 0.0 2 682.6 BS 28 59.4 63.3 61.4 0 050 14.4 21 100 0.0 3 692.3 BS 29 52.8 61.7 56.1 0 110 18.4 25 050 0.0 4 691.9 30 52.8 61.7 60.0 0 100 17.3 28 110 0.0 4 682.2 BS 31 57.2 62.2 57.9 0 030 18.4 23 030 0.0 5 690.7 BS AVG 55.2 60.7 58.1 T 110 15.1 28 110 14.7 3 681.8 30th AVG MONTHLY -58.1 PCPN TRACE NR DAYS CLEAR 12 HIGHEST -44.2 ON 2nd SUNSHINE 321.3/ 61% PARTLY CLOUDY 17 LOWEST -66.1 ON 15th,23rd CLOUDY 02 HIGH PRESSURE 696.2 ON 28th,29th LOW PRESSURE 670.7 ON 9th NET CHANGE IN SNOWSTAKE FIELD: M SNOWSTAKE DATA NOT AVAILABLE. Sunset occurred at 2140UTC on day 22. Sunset based on US Naval Observatory time. 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 -44.4 -44.2 Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 55.7 55.2 Avg Wnd Spd 15.2 15.1 Avg Press 681.3 681.8 Min T 60.1 60.7 Max Press 696.0 696.2 Fastest Wnd MPH Avg T 57.9 58.1 Min Press Changes to Daily Data: Max Temp Day 1 2 10 15 16 23 29 From: 50.6 46.7 58.9 63.3 55.6 61.7 56.7 To: 49.7 44.2 58.3 62.2 52.8 56.1 52.8 Min Temp Day 3 4 6 7 8 9 12 13 17 20 21 24 27 30 From: 48.9 50.6 56.1 57.2 60.6 61.7 60.6 64.4 57.8 58.9 59.4 61.1 60.0 60.0 To: 49.7 50.9 56.7 58.3 61.1 62.2 63.3 65.6 60.0 59.4 61.7 62.8 62.8 61.7 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 From: 51.4 49.7 46.7 48.9 51.7 54.2 56.1 58.6 60.8 60.8 60.0 59.7 62.5 64.4 To: 50.7 46.0 48.2 49.7 52.8 56.0 57.3 60.4 61.7 59.6 59.4 61.5 64.6 64.7 Day 15 16 17 18 19 20 21 22 23 24 26 27 29 30 31 From: 64.7 60.0 55.0 60.0 58.6 57.2 57.5 61.9 63.9 57.2 57.5 58.9 59.2 56.4 59.7 To: 63.7 55.8 57.4 60.4 57.1 58.0 59.5 64.3 59.7 58.2 58.2 60.8 56.1 60.0 57.9 Number of NCDC observations per day: 4