Weekly Climate Summary for 26 April 2025 through 02 May 2025 UTC
South Pole Station, Antarctica

Temperature:
Average temp... -48.2°C / -54.8°F
Maximum temp... -38.0°C / -36.4°F on day 30
Minimum temp... -58.0°C / -72.4°F on day 2

Wind:
Average wind speed.......... 17.9 mph or 15.6 knots
Prevailing wind direction... Grid North
Maximum wind speed.......... 45 mph or 39 knots on day 28
Maximum wind direction...... Grid East
Average vectored wind....... 017 degrees at 13.7 knots

Station Pressure:
Average pressure... 688.9 mb
Highest pressure... 697.6 mb on day 26
Lowest pressure.... 682.4 mb on day 30

Physio-altitude:
Average physio-alt = 10294 ft/ 3138 m
Highest physio-alt = 10538 ft/ 3212 m on day 30
Lowest physio-alt  =  9971 ft/ 3039 m on day 26

Sky Cover:
Average cloud cover (8ths)... 4
Days clear................... 2
Days partly cloudy........... 4
Days cloudy.................. 1

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

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

Balloon flight data:
Number of soundings for the week..... 7
Average height of soundings.......... 34.2 mb, or 22389 meters
Highest sounding..................... 7.8 mb, or 29951 meters on day 01/00Z flight

0 soundings were missed.

**RECORDS**
4/28: An average wind speed of 22.9 knots/26.4 mph breaks the pervious daily record of 21 knots/24.2 mph set on this date in 1971.

4/28: A peak wind of 39 knots/45 mph (Grid 080) breaks the previous record of 34 knots/39.1 mph (Grid 020) set on this date in 2020.

4/29: An average wind speed of 24.1 knots/27.7 mph beats the previous daily record of 23.2 knots/26.7 mph set on this day in 1982.

4/29: A peak wind speed of 37 knots/42.6 mph beats the previous record of 31 knots/35.7 mph set on this day in 2010.