Climate almanac
Harlan
Iowa, United States · 41.65°, -95.33°
What is the weather like in Harlan in May?
In May, Harlan is typically 73°F (23°C) during the day and 53°F (12°C) at night. The month brings about 6.0 in (152 mm) of precipitation in total.
- Average high73°F (23°C)
- Average low53°F (12°C)
- Precipitation6.0 in (152 mm)
- Clear or mostly clear days9
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)