Weekly Climate Summary for 12 April 2025 through 18 April 2025 UTC
South Pole Station, Antarctica

Temperature:
Average temp... -60.7°C / -77.3°F
Maximum temp... -51.2°C / -60.2°F on day 14
Minimum temp... -68.1°C / -90.6°F on day 18

Wind:
Average wind speed.......... 10.1 mph or 8.8 knots
Prevailing wind direction... Grid East
Maximum wind speed.......... 21 mph or 18 knots on day 12
Maximum wind direction...... Grid Northeast
Average vectored wind....... 066 degrees at 7.1 knots

Station Pressure:
Average pressure... 669.1 mb
Highest pressure... 673.1 mb on day 14
Lowest pressure.... 662.7 mb on day 12

Physio-altitude:
Average physio-alt = 11042 ft/ 3366 m
Highest physio-alt = 11288 ft/ 3441 m on day 12
Lowest physio-alt  = 10890 ft/ 3319 m on day 14

Sky Cover:
Average cloud cover (8ths)... 3
Days clear................... 1
Days partly cloudy........... 6
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..... 11
Average height of soundings.......... 42.9 mb, or 23058 meters
Highest sounding..................... 17.0 mb, or 26150 meters on day 14/00Z flight

3 soundings were missed.

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