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.

---

• Des Moines - May »
  The month with the most rainfall in Des Moines is May, when the rain falls for 15.3 days and typically aggregates up to 2.76" (70mm) of precipitation. On the last day of the month, sunrise is at 5:42 am and sunset at 8:41 pm CDT.
• 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. On the last day of the month, in Cedar Rapids, sunrise is at 5:33 am and sunset at 8:35 pm CDT.
• Davenport - May »
  In Davenport in May, it is raining for 17.5 days, with typically 4.49" (114mm) of accumulated precipitation. On the first day of May in Davenport, sunrise is at 5:58 am and sunset at 8:00 pm.
• Sioux City - May »
  In Sioux City, during May, the rain falls for 13.5 days and regularly aggregates up to 1.73" (44mm) of precipitation. In Sioux City, during May, the rain falls for 13.5 days and regularly aggregates up to 1.73" (44mm) of precipitation.
• Iowa City - May »
  On the last day of the month, in Iowa City sunrise is at 5:34 am and sunset at 8:33 pm CDT. In Iowa City, during May, the rain falls for 18.4 days and regularly aggregates up to 4.69" (119mm) of precipitation.
• Waterloo - May »
  In Waterloo, during May, the rain falls for 17.1 days and regularly aggregates up to 4.21" (107mm) of precipitation. On the first day of May in Waterloo, Iowa, sunrise is at 6:03 am and sunset at 8:09 pm.
• 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 »
  On the last day of the month, in West Des Moines sunrise is at 5:43 am and sunset at 8:42 pm CDT. May is the last month it regularly snows in West Des Moines, Iowa.
• Council Bluffs - May »
  On the last day of the month, in Council Bluffs sunrise is at 5:52 am and sunset at 8:49 pm CDT. In Council Bluffs in May, it is raining for 16.3 days, with typically 3.46" (88mm) of accumulated precipitation.
• Dubuque - May »
  On the last day of the month, in Dubuque sunrise is at 5:27 am and sunset at 8:33 pm CDT. The wettest months in Dubuque are May and June, with an average 3.7" (94mm) of rainfall.
• Ankeny - May »
  During 0.2 snowfall days, in May, Ankeny aggregates 0.16" (4mm) of snow. During 0.2 snowfall days, in May, Ankeny aggregates 0.16" (4mm) of snow.
• Urbandale - May »
  On the first day of May in Urbandale sunrise is at 6:10 am and sunset at 8:13 pm. In Urbandale, during the entire year, snow falls for 29.6 days and aggregates up to 6.77" (172mm) of snow.