Climate almanac

Ellsworth Air Force Base

South Dakota, United States · 44.14°, -103.08°

+ Compare

What is the climate like in Ellsworth Air Force Base?

The best time to visit Ellsworth Air Force Base is typically June – October, with trip comfort peaking in September (8.5/10). Ellsworth Air Force Base is warmest in July, when daily highs average 89°F (32°C), and coolest in February, when lows fall to about 16°F (-9°C). The wettest month is typically May and the driest is January; the year sees roughly 18 in (451 mm) of precipitation.

  • Best time to visitJune – October — comfort peaks in September (8.5/10)
  • Warmest monthJuly — average high 89°F (32°C)
  • Coolest monthFebruary — average low 16°F (-9°C)
  • Wettest monthMay (3.1 in (79 mm))
  • Driest monthJanuary (0.5 in (13 mm))
  • Annual precipitation18 in (451 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromEllsworth AFB, 2 km away (1949-2026)