Iowa Monthly Weather Summary – August 2026

General Summary

Statewide temperatures averaged 71.9 degrees or 0.9 degree above normal while precipitation totaled 4.79 inches or 0.66 inch above normal. August 2026 ties 1921 and 2020 as the 75th warmest on record and ranks as the 36th wettest on record. A warmer August last occurred in 2023 while 2021 was wetter.

Summer Summary

Temperatures for the three summer months of June, July and August averaged 72.7 degrees, which is 1.3 degrees above normal. Precipitation totaled 14.32 inches or 0.76 inch above normal. This ties 1940 and 1984 as the 54th warmest summer on record. It also ranks as the 39th wettest summer in 154 years of records. Summer 2021 was warmer while 2025 was wetter and the 6th wettest on record.

Justin Glisan, Ph.D.
State Climatologist of Iowa
Iowa Dept. of Agriculture & Land Stewardship
Hoover State Office Bldg.
Des Moines, IA 50319
Telephone: (515) 281-8981
E-mail: [email protected]