Weekly Climate Summary for 20 September 2025 through 26 September 2025 UTC
South Pole Station, Antarctica

Temperature:
Average temp... -47.3°C / -53.1°F
Maximum temp... -36.7°C / -34.1°F on day 23
Minimum temp... -57.4°C / -71.3°F on day 25

Wind:
Average wind speed.......... 14.1 mph or 12.2 knots
Prevailing wind direction... Grid North
Maximum wind speed.......... 30 mph or 26 knots on day 22
Maximum wind direction...... Grid North
Average vectored wind....... 010 degrees at 11.3 knots

Station Pressure:
Average pressure... 682.5 mb
Highest pressure... 687.3 mb on day 25
Lowest pressure.... 674.2 mb on day 23

Physio-altitude:
Average physio-alt = 10534 ft/ 3211 m
Highest physio-alt = 10848 ft/ 3306 m on day 23
Lowest physio-alt  = 10354 ft/ 3156 m on day 25

Sky Cover:
Average cloud cover (8ths)... 6
Days clear................... 0
Days partly cloudy........... 4
Days cloudy.................. 3

Sunshine:
Sunrise on 20 September 2025
Average hours per day... 3.6
Percent of possible..... 15

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

Balloon flight data:
Number of soundings for the week..... 6
Average height of soundings.......... 75.4 mb, or 19317 meters
Highest sounding..................... 8.0 mb, or 30431 meters on day 25/00Z flight

1 sounding was missed.

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