Davenport, Iowa – Cooler-than-average temperatures and a patchwork of rainfall totals shaped the May 2025 climate across eastern Iowa and northwest Illinois, with Cedar Rapids seeing notably dry conditions while Moline recorded above-average rain.
According to the National Weather Service in the Quad Cities, average temperatures in May ranged from about 1.8°F below normal to just slightly above normal across the region. Precipitation was inconsistent: Cedar Rapids ended the month 1.96 inches below normal, while Moline was 0.91 inches wetter than average.
Despite the month’s cooler finish, spring as a whole (March–May) wrapped up 3 to 4 degrees above normal across the region. Total spring rainfall was 1 to 5 inches above normal, and snowfall varied sharply—from 2.5 inches above normal in Dubuque to 4 inches below normal at Moline.
In Burlington, Cedar Rapids, and Dubuque, May’s cooler stretch followed a much warmer spring. Those planning outdoor activities or agriculture should be aware that uneven rainfall could impact soil moisture and planting progress.
Looking ahead, forecasters expect continued variability as the region transitions into summer. Stay updated as more seasonal outlooks and local advisories are issued.
