May weather forecast
Iowa, USA

May is emblematic of the full bloom of spring in Iowa, with the state bathed in mild temperatures and an abundance of natural beauty. Daytime temperatures become increasingly pleasant, often ranging from 65°F (18.3°C) to 75°F (23.9°C). Nights, while warmer than April, maintain a comfortable coolness, with temperatures spanning from 45°F (7.2°C) to 55°F (12.8°C).

As spring marches on, rain remains a frequent visitor in May. These showers, while nurturing the state's flora, can sometimes be accompanied by stronger thunderstorms, given the increasing heat and humidity. Such storms, while intense, are typically short-lived and are interspersed with longer periods of clear, sunny skies.

When juxtaposed with April, May showcases a marked increase in both temperature and overall stability. The chances of any late-season frosts diminish considerably, making way for consistent warmth. This consistency aids in the transformation of Iowa's landscapes, with farmlands flourishing and urban areas teeming with greenery.

In areas proximate to significant water bodies, such as Muscatine by the Mississippi River, the influence of water can bring slight variations in temperature, usually a tad cooler than the state's more inland regions. However, across the board, May stands as a testament to Iowa's springtime charm. The month harmoniously blends the remnants of spring's freshness with the early whispers of summer's warmth, setting the stage for the hotter months ahead.

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• Des Moines - May »
  On the last day of the month, sunrise is at 5:43 am and sunset at 8:41 pm CDT. In Des Moines during May, the rain falls for 15.3 days and regularly aggregates up to 2.76" (70mm) of precipitation.
• Cedar Rapids - May »
  The month with the most rainfall in Cedar Rapids is May, when the rain falls for 16 days and typically aggregates up to 3.07" (78mm) of precipitation. In Cedar Rapids in May, during 16 rainfall days, 3.07" (78mm) of precipitation is typically accumulated.
• Davenport - May »
  In Davenport in May, during 17.5 rainfall days, 4.49" (114mm) of precipitation is typically accumulated. In Davenport, snow does not fall in May through September.
• Sioux City - May »
  The arrival of May in Sioux City brings a temperature shift, with the average high-temperature escalating from a refreshing 58.6°F (14.8°C) in April to an agreeable 70°F (21.1°C). On the first day of May in Sioux City sunrise is at 6:20 am and sunset at 8:25 pm.
• Iowa City - May »
  On the last day of May, in Iowa City, sunrise is at 5:34 am and sunset at 8:33 pm CDT. On the first day of May in Iowa City sunrise is at 6:02 am and sunset at 8:03 pm.
• Waterloo - May »
  In Waterloo during the entire year, the rain falls for 133.6 days and collects up to 28.27" (718mm) of precipitation. In Waterloo, Iowa, in May, during 17.1 rainfall days, 4.21" (107mm) of precipitation is typically accumulated.
• Ames - May »
  In Ames, during the entire year, snow falls for 36.2 days and aggregates up to 15.43" (392mm) of snow. During 0.2 snowfall days, in May, Ames aggregates 0.35" (9mm) of snow.
• West Des Moines - May »
  In West Des Moines, Iowa, in May, during 16.9 rainfall days, 4.33" (110mm) of precipitation is typically accumulated. In West Des Moines during the entire year, snow falls for 35.4 days and aggregates up to 12.99" (330mm) of snow.
• Council Bluffs - May »
  In Council Bluffs, during the entire year, snow falls for 31.6 days and aggregates up to 9.65" (245mm) of snow. In Council Bluffs, during May, the rain falls for 16.3 days and regularly aggregates up to 3.46" (88mm) of precipitation.
• Dubuque - May »
  On the first day of May in Dubuque, Iowa, sunrise is at 5:57 am and sunset at 8:02 pm. On the first day of May in Dubuque, sunrise is at 5:57 am and sunset at 8:02 pm.
• Ankeny - May »
  In Ankeny in May, during 17 rainfall days, 3.98" (101mm) of precipitation is typically accumulated. May is the last month it regularly snows in Ankeny, Iowa.
• Urbandale - May »
  In Urbandale, during the entire year, snow falls for 29.6 days and aggregates up to 6.77" (172mm) of snow. During 0.2 snowfall days, in May, Urbandale aggregates 0.08" (2mm) of snow.