Weekly Climate Summary for 09 June 2012 through 15 June 2012 UTC South Pole Station, Antarctica Temperature: Average temp... -63.5°C / -82.3°F Maximum temp... -51.1°C / -60.0°F on day 15 Minimum temp... -74.1°C / -101.4°F on day 13 Wind: Average wind speed.......... 12.0 mph or 10.4 knots Prevailing wind direction... Grid North Maximum wind speed.......... 33 mph or 29 knots on day 15 Maximum wind direction...... Grid Northeast Average vectored wind....... 072 degrees at 6.8 knots Station Pressure: Average pressure... 682.2 mb Highest pressure... 692.4 mb on day 15 Lowest pressure.... 673.1 mb on day 13 Physio-altitude: Average physio-alt = 10545 ft/ 3214 m Highest physio-alt = 10890 ft/ 3319 m on day 13 Lowest physio-alt = 10164 ft/ 3098 m on day 15 Sky Cover: Average cloud cover (8ths)... 3 Days clear................... 3 Days partly cloudy........... 4 Days cloudy.................. 0 Sunshine: Sunrise on 20 September 2012 Average hours per day... 0.0 Percent of possible..... 0 Visibility: 1 days with visibility of 1/4 mile or less. Balloon flight data: Number of soundings for the week..... 7 Average height of soundings.......... 75.4 mb, or 18290 meters Highest sounding..................... 7.1 mb, or 29472 meters on day 14/00Z flight 0 soundings were missed. **RECORDS** 11th: The temperature of -73.8°C/-100.8°F broke the previous minimum temperature record of -73.3°C/-99.9°F set in 1966.