***Corrected Winter 2011*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1973 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 35.3 45.6 38.3 0 360 20.0 36 360 0.0 0 685.9 BS 2 32.0 39.4 33.3 0 350 17.1 25 320 0.0 4 688.0 BS 3 32.2 59.2 46.1 0 300 9.7 24 290 0.0 2 686.5 BS 4 40.0 63.6 60.5 0 140 13.0 22 120 0.0 0 685.2 5 50.3 63.9 55.1 0 130 9.5 18 130 0.0 3 692.5 6 48.6 53.3 50.7 T 030 11.0 14 030 0.0 2 697.4 IC 7 48.9 56.7 54.9 T 040 15.7 21 080 0.0 0 689.6 IC 8 46.4 56.7 48.7 T 030 19.7 26 030 0.0 2 683.7 BS,IC 9 46.7 57.0 54.7 0 030 17.2 23 040 0.0 0 685.4 BS 10 54.7 60.8 57.9 0 020 11.0 20 030 0.0 0 689.2 11 55.0 61.7 58.3 0 060 10.0 15 090 0.0 0 689.5 12 58.9 62.0 60.7 0 100 13.3 17 100 0.0 0 680.8 13 60.8 64.2 62.5 0 100 11.4 16 100 0.0 1 680.4 14 62.2 67.2 65.6 0 120 10.7 14 120 0.0 0 680.9 15 55.9 67.2 59.7 0 110 14.8 19 030 0.0 0 676.2 16 43.1 61.1 51.8 0 040 12.1 20 020 0.0 3 682.4 17 41.4 57.0 47.1 T 050 9.0 17 060 0.0 3 683.4 IC 18 41.4 58.9 48.4 T 150 6.3 16 050 0.0 0 684.3 IC 19 41.1 55.9 52.6 0 120 18.3 23 120 0.0 0 681.0 20 52.2 58.9 56.8 0 120 12.1 24 120 0.0 2 678.1 21 53.9 63.6 60.8 T 110 12.9 17 110 0.0 0 683.3 IC 22 57.0 65.6 60.8 T 120 6.6 17 110 0.0 0 683.3 IC 23 56.4 63.3 60.5 0 110 7.5 16 120 0.0 3 686.1 24 54.7 63.3 58.9 T 110 14.1 21 140 0.0 1 686.5 IC 25 58.6 62.0 60.9 0 120 13.8 22 120 0.0 0 685.6 26 59.2 62.2 60.8 0 070 14.7 19 070 0.0 0 686.7 27 54.2 62.2 57.1 0 070 15.2 19 070 0.0 0 684.9 28 53.3 65.8 63.7 0 100 12.2 18 100 0.0 0 683.8 29 58.1 66.1 60.5 0 030 15.5 19 040 0.0 0 688.7 30 54.2 62.2 57.8 0 070 15.3 22 080 0.0 0 674.5 31 54.4 63.1 61.6 0 020 16.0 19 040 0.0 0 679.6 AVG 50.4 60.3 55.7 T 120 13.1 36 360 0.0 1 684.6 1st AVG MONTHLY -55.7 PCPN TRACE NR DAYS CLEAR 26 HIGHEST -32.0 ON 2nd SUNSHINE 0.0/ 0% PARTLY CLOUDY 05 LOWEST -67.2 ON 14th,15th CLOUDY 00 HIGH PRESSURE 697.9 ON 7th LOW PRESSURE 670.8 ON 31st 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 Extremes: From To Max T -32.2 -32.0 Min T Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 51.5 50.4 Avg Wnd Spd 13.9 13.1 Avg Press 684.5 685.6 Min T 59.1 60.3 Max Press Fastest Wnd MPH Avg T 55.3 55.7 Min Press Changes to Daily Data: Max Temp Day 1 2 5 6 8 10 13 15 16 17 18 22 23 24 25 26 From: 38.3 32.2 53.3 50.0 48.3 55.0 61.1 60.6 51.1 42.2 41.7 58.9 57.2 55.0 60.0 60.0 To: 35.3 32.0 50.3 48.6 46.4 54.7 60.8 55.9 43.1 41.4 41.4 57.0 56.4 54.7 58.6 59.2 Day 27 29 30 From: 54.4 60.6 57.8 To: 54.2 58.1 54.2 Min Temp Day 3 4 9 10 12 13 17 19 21 25 28 31 From: 35.6 60.6 56.7 59.4 61.7 63.3 53.9 53.9 61.7 61.7 65.0 62.2 To: 59.2 63.6 57.0 60.8 62.0 64.2 57.0 55.9 63.6 62.0 65.8 63.1 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 From: 41.9 35.8 33.9 50.3 58.6 51.7 52.8 52.5 51.7 57.2 60.3 62.2 64.7 63.9 56.1 To: 38.3 33.3 46.1 60.5 55.1 50.7 54.9 48.7 54.7 57.9 60.7 62.5 65.6 59.7 51.8 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 48.1 50.3 47.5 55.6 57.8 62.2 60.3 59.2 60.8 61.1 58.3 59.2 63.3 60.0 58.3 To: 47.1 48.4 52.6 56.8 60.8 60.8 60.5 58.9 60.9 60.8 57.1 63.7 60.5 57.8 61.6 Number of NCDC observations per day: 24