March in Des Moines averages a daily high of 9.8°C with nights around -1°C. Expect roughly 9.4 wet days totalling 55.5mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Des Moines is September.
Based on DES MOINES INTERNATIONAL AIRPORT, IA US (8.3km), 1995–2024. 30 years of March data.