Coldest Mays in Iowa since 1895: Historical Data Highlights
Coldest Mays in Iowa since 1895: Historical Data Highlights
US · Published May 11, 2026
Iowa has experienced some notably cold Mays since 1895, as compiled by Stacker using data from the National Centers for Environmental Information.
The rankings are based on the lowest average temperatures recorded during the month.
The coldest May on record occurred in 1907, with an average temperature of 52.7°F (11.5°C), a monthly high of 65.3°F (18.5°C), and a low of 40°F (4.4°C).

Why It's Important?

The cold temperatures during these Mays likely impacted agriculture, particularly planting and growing conditions for crops such as corn and soybeans, which are staples in Iowa. Frost risks and delayed planting schedules may have been common during these colder months. Additionally, the variability in precipitation levels could have influenced water availability for farming and other activities. While these events are historical, they underscore the importance of monitoring spring weather trends for planning and risk mitigation.

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