Climate almanac

Jamestown

North Dakota, United States · 46.91°, -98.71°

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What is the climate like in Jamestown?

The best time to visit Jamestown is typically May – September, with trip comfort peaking in September (7.1/10). Jamestown is warmest in July, when daily highs average 82°F (28°C), and coolest in February, when lows fall to about 6°F (-15°C). The wettest month is typically August and the driest is January; the year sees roughly 25 in (647 mm) of precipitation.

  • Best time to visitMay – September — comfort peaks in September (7.1/10)
  • Warmest monthJuly — average high 82°F (28°C)
  • Coolest monthFebruary — average low 6°F (-15°C)
  • Wettest monthAugust (3.6 in (92 mm))
  • Driest monthJanuary (0.7 in (18 mm))
  • Annual precipitation25 in (647 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromJamestown State Hosp, 3 km away (1881-2026)