Climate almanac
Washington
Iowa, United States · 41.30°, -91.69°
What is the weather like in Washington in May?
In May, Washington is typically 75°F (24°C) during the day and 54°F (12°C) at night. The month brings about 4.8 in (123 mm) of precipitation in total.
- Average high75°F (24°C)
- Average low54°F (12°C)
- Precipitation4.8 in (123 mm)
- Clear or mostly clear days9
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)