Des Moines
Iowa, USA
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Des Moines, IA

A close view of city buildings in Des Moines, Iowa
A close view of city buildings in Des Moines, Iowa
April is a mild spring month in Des Moines, Iowa, with temperature in the range of an average low of 42.4°F (5.8°C) and an average high of 59.7°F (15.4°C).

Temperature

In Des Moines, the average high-temperature in April increases, from a frosty 47.5°F (8.6°C) in March, to a mild 59.7°F (15.4°C). The average low-temperature, in Des Moines, Iowa, is 42.4°F (5.8°C).

Humidity

In Des Moines, the average relative humidity in April is 73%.

Rainfall

In Des Moines, Iowa, during April, the rain falls for 13.4 days and regularly aggregates up to 1.46" (37mm) of precipitation. Throughout the year, in Des Moines, there are 114.4 rainfall days, and 16.38" (416mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Des Moines. In Des Moines, during April, snow falls for 1.1 days and regularly aggregates up to 0.35" (9mm) of snow. In Des Moines, during the entire year, snow falls for 30.9 days, and aggregates up to 7.36" (187mm) of snow.

Daylight

In Des Moines, Iowa, the average length of the day in April is 13.4h.

Sunshine

The average sunshine in Des Moines is 8h.

UV index

In Des Moines, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to the UV radiation for the average person.
Note: The average daily UV index of 4 in April transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in April in Des Moines?

In April, in Des Moines, Iowa, the average high-temperature is 59.7°F (15.4°C), and the average low-temperature is 42.4°F (5.8°C).

What is the average humidity in April in Des Moines?

In Des Moines, Iowa, the average relative humidity in April is 73%.

How many days does it rain in April in Des Moines?

In Des Moines, Iowa, in April, during 13.4 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

How many days does it snow in April in Des Moines?

In April, in Des Moines, it is snowing for 1.1 days. Throughout April, 0.35" (9mm) of snow is accumulated.

What is the average length of the day in April in Des Moines?

In Des Moines, Iowa, the average length of the day in April is 13.4h.

How many hours of sunshine does Des Moines have in April?

In April, the average sunshine in Des Moines is 8h.

What is the UV index reading in April in Des Moines?

In April, the average daily maximum UV index in Des Moines is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in April - Des Moines, IA
  • Average high temperature in April: 15.4°C

The warmest month (with the highest average high temperature) is July (28.4°C).
The month with the lowest average high temperature is January (-2.1°C).

  • Average low temperature in April: 5.8°C

The month with the highest average low temperature is July (18.6°C).
The coldest month (with the lowest average low temperature) is January (-9.4°C).

Average humidity in April - Des Moines, IA
  • Average humidity in April: 73%

Months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (70%).

Average rainfall in April - Des Moines, IA
  • Average rainfall in April: 37mm

The wettest month (with the highest rainfall) is May (70mm).
The driest month (with the lowest rainfall) is January (12mm).

Average rainfall days in April - Des Moines, IA
  • Average rainfall days in April: 13.4 days

The month with the highest number of rainy days is June (15.9 days).
The month with the lowest number of rainy days is February (3 days).

Average snowfall in April - Des Moines, IA
  • Average snowfall in April: 9mm

The month with the highest snowfall is January (57mm).
Months with the lowest snowfall are June, July, August and September (0mm).

Average snowfall days in April - Des Moines, IA
  • Average snowfall days in April: 1.1 days

The month with the highest number of snowfall days is January (8.7 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average daylight in April / Average sunshine in April - Des Moines, IA
  • Average daylight in April: 13.4h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).

  • Average sunshine in April: 8h

The month with most sunshine is July (Average sunshine: 10.3h).
The month with least sunshine is January (Average sunshine: 4.3h).

Average UV index in April - Des Moines, IA
  • Average UV index in April: 4

Months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).