***Corrected Winter 2011*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1973 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 29.4 38.3 36.1 T 030 11.1 15 030 18.0 6 685.1 IC,IF 2 35.0 38.6 37.5 T 030 8.0 14 030 21.0 6 684.3 IC 3 35.0 40.0 38.4 T 030 9.3 13 080 24.0 4 683.5 IC 4 32.0 40.0 34.8 T 100 13.4 17 060 24.0 6 682.1 IC 5 32.0 37.2 34.6 T 010 10.8 17 010 12.0 7 686.4 IC,IF 6 30.3 36.7 34.1 T 030 13.1 16 030 6.0 6 686.5 IC,IF 7 29.2 40.3 35.0 T 040 11.1 18 030 14.0 5 683.6 IC,IF 8 32.8 42.8 41.4 T 080 11.6 15 070 24.0 5 681.5 IC,IF 9 41.1 44.4 42.5 T 020 12.8 15 030 24.0 4 681.2 IC 10 41.7 45.0 44.1 T 020 10.8 16 010 24.0 4 681.6 IC 11 43.6 45.6 44.4 T 070 12.7 14 080 24.0 0 684.4 IC 12 42.8 45.0 43.8 T 070 13.8 16 060 24.0 4 685.5 IC 13 42.8 47.2 45.7 T 060 13.0 16 070 24.0 1 689.0 IC 14 45.6 48.6 47.5 T 100 10.7 16 060 24.0 0 689.2 IC 15 47.8 50.0 48.7 T 100 10.1 16 080 24.0 0 686.2 IC 16 47.0 48.9 47.7 T 100 12.5 17 100 24.0 0 684.1 IC 17 47.2 50.0 48.0 T 100 12.7 17 110 24.0 1 683.7 IC 18 47.8 50.0 49.1 T 110 11.6 16 110 24.0 3 680.9 IC 19 45.6 50.0 48.4 T 050 12.5 16 110 20.0 6 679.7 IC 20 46.4 50.0 47.9 T 010 16.9 18 020 21.0 7 684.3 IC,IF 21 47.8 49.7 48.8 T 020 11.6 22 020 18.0 5 683.6 IC,IF 22 47.2 50.0 48.4 T 110 14.7 18 120 24.0 1 679.9 IC 23 45.9 51.1 48.5 T 120 14.2 22 120 24.0 1 676.7 IC 24 45.6 50.6 49.7 T 070 14.7 17 060 24.0 1 677.0 IC 25 47.0 51.1 49.6 T 030 13.3 19 030 24.0 4 680.9 IC 26 46.4 50.0 48.1 T 040 10.5 16 040 8.0 6 684.1 IC 27 45.6 50.3 47.8 T 060 11.2 15 020 8.0 5 679.1 S 28 47.2 53.1 51.6 T 070 13.1 19 060 20.0 4 673.1 ICS AVG 41.7 46.2 44.4 T 100 12.2 22 120 20.5 4 682.7 21st,23rd AVG MONTHLY -44.4 PCPN TRACE NR DAYS CLEAR 09 HIGHEST -29.2 ON 7th SUNSHINE 574.0/ 85% PARTLY CLOUDY 17 LOWEST -53.1 ON 28th CLOUDY 02 HIGH PRESSURE 690.1 ON 14th LOW PRESSURE 672.0 ON 28th NET CHANGE IN SNOWSTAKE FIELD: +0.52 inches 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 -29.4 -29.2 Min T -52.2 -53.1 Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 42.2 41.7 Avg Wnd Spd 12.4 12.2 Avg Press 682.8 682.7 Min T 45.9 46.2 Max Press Fastest Wnd MPH Avg T 44.0 44.4 Min Press Changes to Daily Data: Max Temp Day 4 5 6 7 11 16 20 22 23 25 26 From: 35.6 32.2 32.8 29.4 43.9 47.8 46.7 47.8 47.8 49.4 47.2 To: 32.0 32.0 30.3 29.2 43.6 47.0 46.4 47.2 45.9 47.0 46.4 Min Temp Day 1 2 7 8 13 14 21 27 28 From: 37.8 38.3 37.2 41.1 45.6 48.3 49.4 49.4 52.2 To: 38.3 38.6 40.3 42.8 47.2 48.6 49.7 50.3 53.1 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 33.6 36.7 37.5 37.8 34.7 34.7 33.3 36.9 42.8 43.3 44.7 43.9 44.2 46.9 48.9 48.3 To: 36.1 37.5 38.4 34.8 34.6 34.1 35.0 41.4 42.5 44.1 44.4 43.8 45.7 47.5 48.7 47.7 Day 17 18 19 20 21 22 23 24 25 26 27 28 From: 48.6 48.9 47.8 48.3 48.6 48.9 49.4 48.1 50.3 48.6 47.5 49.7 To: 48.0 49.1 48.4 47.9 48.8 48.4 48.5 49.7 49.6 48.1 47.8 51.6 Number of NCDC observations per day: 24