***Corrected Winter 2011*** LOCAL CLIMATOLOGICAL DATA HISTORY OF THE AMUNDSEN SCOTT SOUTH POLE STATION YEAR 1977 MONTH JANUARY .... 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 22.0 25.0 23.1 T 010 9.8 20 360 M 6 696.9 2 22.2 26.7 25.4 T 020 10.3 20 020 M 6 699.6 3 22.0 27.2 25.3 T 010 9.5 13 350 M 7 700.6 4 21.4 24.4 22.9 T 040 13.9 22 030 M 4 695.4 5 21.1 23.9 22.8 T 010 15.7 24 010 M 2 695.1 6 21.1 23.9 22.2 T 010 11.5 24 010 M 5 700.1 7 21.1 25.0 24.3 T 030 6.7 18 010 M 2 702.5 8 23.1 25.0 23.8 0 090 11.5 17 090 M 0 698.5 9 22.8 25.0 24.1 T 070 11.8 17 090 M 0 693.9 10 23.3 25.6 24.3 T 020 10.6 15 080 M 4 691.5 11 23.3 25.6 24.7 T 020 14.8 20 020 M 0 690.9 12 22.6 25.6 24.3 T 030 19.0 23 030 M 6 691.9 13 19.8 25.6 20.7 T 340 19.9 30 340 M 8 700.2 14 19.4 23.9 22.0 T 010 17.1 28 350 M 5 702.5 15 20.6 25.9 24.9 T 050 13.2 27 360 M 3 700.2 16 21.4 27.2 25.2 0 070 10.5 17 070 M 5 698.8 17 20.0 27.2 21.4 T 340 16.2 23 340 M 8 702.1 18 20.6 24.2 22.0 T 350 16.6 24 320 M 6 705.6 19 21.1 25.0 24.3 0 010 13.7 25 340 M 5 704.4 20 23.3 25.0 24.5 T 040 11.4 20 040 M 1 700.3 21 24.4 26.4 25.7 T 040 11.5 15 040 M 2 697.3 22 23.1 26.7 25.0 T 030 11.5 18 010 M 6 696.1 23 22.2 27.0 25.2 T 360 9.2 20 050 M 6 696.2 24 22.8 28.3 26.8 T 010 9.8 15 070 M 4 698.2 25 24.4 30.0 28.5 T 070 6.0 15 030 M 2 699.3 26 24.4 30.0 27.0 T 100 7.5 11 080 M 5 698.3 27 23.7 30.6 26.6 T 030 8.2 14 070 M 8 695.5 28 23.9 30.0 27.9 T 080 8.9 18 040 M 6 691.0 29 25.6 32.2 30.6 T 060 9.8 17 020 M 4 685.9 30 28.9 33.9 31.5 T 020 9.5 15 050 M 6 684.9 31 31.1 37.0 34.7 T 070 3.9 22 020 M 6 687.7 AVG 22.8 27.1 25.2 T 010 11.6 30 340 M 4 696.8 13th AVG MONTHLY -25.2 PCPN TRACE NR DAYS CLEAR 08 HIGHEST -19.4 ON 14th SUNSHINE M PARTLY CLOUDY 19 LOWEST -37.0 ON 31st CLOUDY 04 HIGH PRESSURE 706.1 ON 18th LOW PRESSURE 684.1 ON 30th NET CHANGE IN SNOWSTAKE FIELD: M SNOWSTAKE DATA NOT AVAILABLE. Insufficient Data available for Sunshine Hours Computation. 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 -35.0 -37.0 Changed Monthly Averages: (All temps are Minus C) From To From To From To Max T 23.3 22.8 Avg Wnd Spd 11.7 11.6 Avg Press 696.6 696.8 Min T 26.8 27.1 Max Press 705.8 706.1 Fastest Wnd MPH Avg T 25.0 25.2 Min Press Changes to Daily Data: Max Temp Day 1 3 4 6 8 12 13 16 22 27 From: 22.2 25.6 21.7 22.2 23.3 24.4 20.0 25.0 25.6 26.1 To: 22.0 22.0 21.4 21.1 23.1 22.6 19.8 21.4 23.1 23.7 Min Temp Day 2 14 15 18 21 23 25 29 31 From: 26.1 22.2 25.0 23.3 25.6 26.7 29.4 30.6 35.0 To: 26.7 23.9 25.9 24.2 26.4 27.0 30.0 32.2 37.0 Avg Temp Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 From: 23.6 24.2 26.4 23.1 22.5 23.1 23.1 24.2 23.9 24.4 24.4 25.0 22.8 20.8 22.8 26.1 To: 23.1 25.4 25.3 22.9 22.8 22.2 24.3 23.8 24.1 24.3 24.7 24.3 20.7 22.0 24.9 25.2 Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 From: 23.6 21.9 23.1 24.2 25.0 26.1 24.4 25.6 26.9 27.2 28.3 26.9 28.1 31.4 33.1 To: 21.4 22.0 24.3 24.5 25.7 25.0 25.2 26.8 28.5 27.0 26.6 27.9 30.6 31.5 34.7 Number of NCDC observations per day: 8