Weekly Climate Summary for 05 July 2025 through 11 July 2025 UTC
South Pole Station, Antarctica

Temperature:
Average temp... -61.3°C / -78.3°F
Maximum temp... -51.3°C / -60.3°F on day 9
Minimum temp... -69.9°C / -93.8°F on day 8

Wind:
Average wind speed.......... 9.3 mph or 8.1 knots
Prevailing wind direction... Grid North
Maximum wind speed.......... 26 mph or 23 knots on day 6
Maximum wind direction...... Grid North
Average vectored wind....... 047 degrees at 3.9 knots

Station Pressure:
Average pressure... 672.1 mb
Highest pressure... 676.5 mb on day 8
Lowest pressure.... 665.3 mb on day 5

Physio-altitude:
Average physio-alt = 10928 ft/ 3331 m
Highest physio-alt = 11188 ft/ 3410 m on day 5
Lowest physio-alt  = 10761 ft/ 3280 m on day 8

Sky Cover:
Average cloud cover (8ths)... 3
Days clear................... 2
Days partly cloudy........... 5
Days cloudy.................. 0

Sunshine:
Sunrise on 20 September 2025
Average hours per day... 0.0
Percent of possible..... 0

Visibility:
0 days with visibility of 1/4 mile or less.

Balloon flight data:
Number of soundings for the week..... 7
Average height of soundings.......... 110.4 mb, or 13989 meters
Highest sounding..................... 89.0 mb, or 15191 meters on day 09/00Z flight

0 soundings were missed.

**RECORDS**
No records were tied or broken this week.