Climate and Average Weather Year Round in Iowa United States

In Iowa, the summers are long, hot, and oppressive; the winters are short and cold; and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 44°F to 91°F and is rarely below 30°F or above 96°F.

Based on the tourism score, the best times of year to visit Iowa for warm-weather activities are from early April to late May and from late September to late October.

The warm season in Iowa spans 4.2 months, from May 20 to September 26, featuring daily high temperatures typically surpassing 85°F. July emerges as the hottest month, with an average high of 90°F and a low of 75°F.

Conversely, the cool season persists for 2.9 months, from November 30 to February 24, marked by daily high temperatures averaging below 67°F. January is Iowa's coldest month, with an average low of 44°F and a high of 61°F.

See more: https://weatherusa.app/iowa

In Iowa, rainfall patterns exhibit seasonal fluctuations rather than static monthly totals. Rainfall accumulation is presented over a rolling 31-day period, providing insight into these variations.

Throughout the year, Iowa receives precipitation consistently. June sees the highest rainfall, averaging 5.4 inches. Conversely, March experiences the least rainfall, with an average of 3.8 inches.