Weekly Climate Summary for 17 May 2025 through 23 May 2025 UTC
South Pole Station, Antarctica

Temperature:
Average temp... -65.9°C / -86.6°F
Maximum temp... -56.9°C / -70.4°F on day 19
Minimum temp... -72.4°C / -98.3°F on day 20

Wind:
Average wind speed.......... 11.6 mph or 10.1 knots
Prevailing wind direction... Grid Southeast
Maximum wind speed.......... 26 mph or 23 knots on day 21
Maximum wind direction...... Grid Southeast
Average vectored wind....... 108 degrees at 6.8 knots

Station Pressure:
Average pressure... 674.0 mb
Highest pressure... 679.2 mb on day 17
Lowest pressure.... 671.4 mb on day 22

Physio-altitude:
Average physio-alt = 10855 ft/ 3309 m
Highest physio-alt = 10954 ft/ 3339 m on day 22
Lowest physio-alt  = 10658 ft/ 3249 m on day 17

Sky Cover:
Average cloud cover (8ths)... 2
Days clear................... 6
Days partly cloudy........... 1
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.......... 78.4 mb, or 16317 meters
Highest sounding..................... 51.7 mb, or 18537 meters on day 22/00Z flight

0 soundings were missed.

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