Weekly Climate Summary for 16 August 2025 through 22 August 2025 UTC
South Pole Station, Antarctica

Temperature:
Average temp... -46.9°C / -52.4°F
Maximum temp... -35.8°C / -32.4°F on day 21
Minimum temp... -65.5°C / -85.9°F on day 16

Wind:
Average wind speed.......... 15.5 mph or 13.5 knots
Prevailing wind direction... Grid Northwest
Maximum wind speed.......... 39 mph or 34 knots on day 18
Maximum wind direction...... Grid North
Average vectored wind....... 329 degrees at 9.5 knots

Station Pressure:
Average pressure... 682.5 mb
Highest pressure... 700.0 mb on day 22
Lowest pressure.... 676.4 mb on day 16

Physio-altitude:
Average physio-alt = 10534 ft/ 3211 m
Highest physio-alt = 10764 ft/ 3281 m on day 16
Lowest physio-alt  =  9883 ft/ 3012 m on day 22

Sky Cover:
Average cloud cover (8ths)... 6
Days clear................... 2
Days partly cloudy........... 0
Days cloudy.................. 5

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

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

Balloon flight data:
Number of soundings for the week..... 14
Average height of soundings.......... 135.6 mb, or 13712 meters
Highest sounding..................... 7.4 mb, or 28556 meters on day 16/00Z flight

0 soundings were missed.

**RECORDS**
8/18: A maximum temperature of -41.0°C breaks the previous daily record of -41.7°C, set on this day in 1975.

8/18: A peak wind of 34 knots ties the previous daily record of 34 knots, set on this day in 2013.

8/19: A maximum temperature of -37.7°C breaks the previous daily record of -40.4°C set on this day in 2007.

8/20: A maximum temperature of -36.3°C breaks the previous daily record of -38.1°C set on this day in 1964.

8/21: A maximum temperature of -35.8°C breaks the previous daily record of -39.4°C set on this day in 1964.

8/22: A maximum temperature of -36.5°C ties the previous daily record of -36.5°C set on this day in 2011.