***Corrected Winter 2011*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1978 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 50.5 58.5 52.5 0 130 5.4 13 070 10.4 5 683.7 2 49.2 56.0 54.0 T 120 6.7 12 090 18.1 2 684.3 3 51.7 55.6 53.6 T 100 9.7 16 080 23.8 5 681.3 4 51.9 56.7 56.0 T 090 12.4 15 090 24.0 1 679.6 5 52.2 57.9 54.1 T 050 14.1 16 090 21.7 2 678.5 6 50.7 56.9 51.8 0 050 15.5 25 040 9.2 3 679.6 BS 7 50.0 54.5 53.3 T 080 11.1 18 050 8.4 3 683.4 8 50.3 55.9 52.6 T 070 13.0 18 070 7.6 5 682.0 9 50.4 54.6 52.1 T 040 15.0 20 060 2.6 6 683.8 BS 10 50.2 55.0 53.2 T 050 11.2 22 040 0.0 6 687.1 BS 11 50.9 56.1 52.7 T 070 10.3 17 040 0.8 5 683.9 BS 12 51.1 58.3 57.1 T 080 12.0 16 070 3.7 0 681.9 BS 13 56.8 60.2 59.6 T 090 11.8 15 080 4.6 0 682.5 14 50.6 62.2 58.8 T 020 8.9 15 070 2.4 6 683.4 15 44.4 63.0 52.1 T 340 13.8 18 010 1.5 6 682.5 BS 16 43.4 54.2 51.0 T 090 3.7 21 330 0.0 6 680.0 BS 17 52.0 57.7 54.4 T 150 12.4 20 130 2.1 2 679.0 BS 18 52.4 63.3 59.7 T 110 14.4 23 120 0.0 0 681.2 19 57.9 65.2 64.6 T 080 14.1 22 130 0.0 1 683.2 IF 20 56.5 65.6 60.2 T 070 12.1 18 070 0.0 4 690.2 21 50.8 62.0 54.4 T 130 10.1 15 060 0.0 2 691.8 22 52.8 61.1 58.5 0 110 17.5 22 110 0.0 0 692.8 BS,IF 23 47.8 61.0 50.5 0 050 12.0 22 120 0.0 5 693.1 BS 24 46.0 55.6 53.3 0 050 12.1 24 030 0.0 6 694.6 BS 25 51.1 58.1 54.6 0 040 12.6 20 050 0.0 6 691.6 26 47.8 57.5 49.9 T 020 22.7 28 040 0.0 8 685.2 BS 27 47.5 51.5 49.8 0 020 22.6 35 020 0.0 7 679.8 BS 28 49.1 55.0 53.6 0 040 19.2 31 020 0.0 5 679.4 BS 29 53.1 57.2 56.4 0 050 19.3 28 050 0.0 4 679.6 BS 30 46.1 57.2 48.2 0 020 27.1 37 030 0.0 8 674.7 BS 31 45.8 50.0 48.0 0 020 24.7 39 030 0.0 7 680.0 BS AVG 50.4 57.9 54.2 T 020 13.8 39 030 6.4 4 683.7 31st AVG MONTHLY -54.2 PCPN TRACE NR DAYS CLEAR 10 HIGHEST -43.4 ON 16th SUNSHINE 140.9/ 27% PARTLY CLOUDY 17 LOWEST -65.6 ON 20th CLOUDY 04 HIGH PRESSURE 694.9 ON 24th LOW PRESSURE 673.5 ON 31st NET CHANGE IN SNOWSTAKE FIELD: +1.19 inches Sunset occurred at 0208UTC on day 23. 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 Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 51.3 50.4 Avg Wnd Spd 13.6 13.8 Avg Press 683.6 683.7 Min T 57.3 57.9 Max Press 694.2 694.9 Fastest Wnd MPH Avg T 54.3 54.2 Min Press Changes to Daily Data: Max Temp Day 3 5 14 15 23 25 26 30 From: 51.9 54.6 58.8 53.7 49.9 51.2 50.2 49.4 To: 51.7 52.2 50.6 44.4 47.8 51.1 47.8 46.1 Min Temp Day 4 10 12 14 18 22 24 28 29 31 From: 56.6 52.5 57.8 61.7 58.3 58.1 53.5 53.2 57.1 49.4 To: 56.7 55.0 58.3 62.2 63.3 61.1 55.6 55.0 57.2 50.0 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 54.5 52.6 53.8 54.3 56.3 53.8 52.3 53.1 52.5 51.4 53.5 54.5 58.5 60.3 58.4 48.8 To: 52.5 54.0 53.6 56.0 54.1 51.8 53.3 52.6 52.1 53.2 52.7 57.1 59.6 58.8 52.1 51.0 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 54.9 55.4 61.5 61.0 56.4 55.5 55.5 49.8 54.7 53.9 49.5 51.2 55.1 53.3 47.6 To: 54.4 59.7 64.6 60.2 54.4 58.5 50.5 53.3 54.6 49.9 49.8 53.6 56.4 48.2 48.0 Number of NCDC observations per day: 4