Climate almanac
Red Oak
Iowa, United States · 41.01°, -95.23°
What is the climate like in Red Oak?
The best time to visit Red Oak is typically May – September, with trip comfort peaking in September (7.3/10). Red Oak is warmest in June, when daily highs average 87°F (30°C), and coolest in January, when lows fall to about 18°F (-8°C). The wettest month is typically May and the driest is February; the year sees roughly 37 in (930 mm) of precipitation.
- Best time to visitMay – September — comfort peaks in September (7.3/10)
- Warmest monthJune — average high 87°F (30°C)
- Coolest monthJanuary — average low 18°F (-8°C)
- Wettest monthMay (5.5 in (140 mm))
- Driest monthFebruary (1.1 in (29 mm))
- Annual precipitation37 in (930 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromRed Oak, 2 km away (1897-2026)