The Iowa Environmental Mesonet (IEM) collects environmental data from cooperating members with observing networks. The data are stored and made available on this website.
IEM Daily Feature
January 50+°F Hours
Posted: 13 Jan 2026 05:30 AM, Views: 288
Temperatures warmed nicely again on Monday making for another rather remarkable January day. Des Moines topped out at 56°F, which was the third day this January with a temperature of at least 50°F. The featured chart looks into the number of hours (based on hourly air temperature reports) each January that Des Moines was at least 50°F. The 2026 total so far is still fewer than what was observed during 2025! The top panel shows the number of such hours each year and there have been plenty of years, including most recently during 2021, without any such warm temperatures. The forecast for Tuesday has slightly cooler temperatures, but still well above average for this time of year!
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Soil Temperatures
Data from the Iowa State Soil Moisture Network is found on this website and daily soil temperature averages are used to produce the highlighted analysis.
Current Data
The IEM combines data from participating networks into products like maps shown above and web applications to analyze the data.