May weather forecast
Missouri Valley, IA

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Weather in May

May, the last month of the spring in Missouri Valley, is a pleasant month, with an average temperature varying between 53.6°F (12°C) and 70.9°F (21.6°C).

Temperature

The shift into May is characterized by a rise in the average high-temperature, transitioning from April's refreshing 60.6°F (15.9°C) to an agreeable 70.9°F (21.6°C). In the month of May, Missouri Valley's average low-temperature falls to a cool 53.6°F (12°C).

Humidity

In Missouri Valley, Iowa, the average relative humidity in May is 72%.

Rainfall

In Missouri Valley, in May, during 14.8 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, in Missouri Valley, there are 108.1 rainfall days, and 16.1" (409mm) of precipitation is accumulated.

Snowfall

In Missouri Valley, Iowa, snow does not fall in May through September.

Daylight

In May, the average length of the day in Missouri Valley is 14h and 32min.
On the first day of the month, sunrise is at 6:19 am and sunset at 8:21 pm. On the last day of May, in Missouri Valley, sunrise is at 5:51 am and sunset at 8:50 pm CDT.

Sunshine

In Missouri Valley, the average sunshine in May is 9h.

UV index

In May, the average daily maximum UV index in Missouri Valley is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In May, the UV index of 5 transforms into the following advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Experience reduced UV exposure by about half when donning a wide-brim hat. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

What are the temperatures in Missouri Valley in May?

Missouri Valley in May has an average high-temperature of 70.9°F (21.6°C) and an average low-temperature of 53.6°F (12°C).

What is the average humidity in May in Missouri Valley?

In Missouri Valley, the average relative humidity in May is 72%.

How many days does it rain in May in Missouri Valley?

In Missouri Valley, Iowa, during May, the rain falls for 14.8 days and regularly aggregates up to 2.6" (66mm) of precipitation.

When it does not snow in Missouri Valley?

In Missouri Valley, snow does not fall in May through September.

Does it snow in Missouri Valley in May?

In May, in Missouri Valley, Iowa, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May in Missouri Valley?

In Missouri Valley, the average day length in May is 14h and 32min.

What time are sunrise and sunset in May in Missouri Valley?

In May, on the first day of the month, sunrise is at 6:19 am and sunset at 8:21 pm. On the last day of the month, in Missouri Valley, sunrise is at 5:51 am and sunset at 8:50 pm CDT.

How long on average sun shines in May in Missouri Valley?

In Missouri Valley, Iowa, the average sunshine duration in May is 9h.

What is the UV index intensity in May in Missouri Valley?

In Missouri Valley, Iowa, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Missouri Valley, IA

Average temperature in May - Missouri Valley, IA
  • Average high temperature in May: 70.9°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in May: 53.6°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

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Average pressure in May
Missouri Valley, IA

Average pressure in May - Missouri Valley, IA
  • Average pressure in May: 29.92"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in May
Missouri Valley, IA

Average wind speed in May - Missouri Valley, IA
  • Average wind speed in May: 9.1mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in May
Missouri Valley, IA

Average humidity in May - Missouri Valley, IA
  • Average humidity in May: 72%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (66%).

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Average rainfall in May
Missouri Valley, IA

Average rainfall in May - Missouri Valley, IA
  • Average rainfall in May: 2.6"

The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is January (0.39").

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Average rainfall days in May
Missouri Valley, IA

Average rainfall days in May - Missouri Valley, IA
  • Average rainfall days in May: 14.8 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (2.4 days).

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Average snowfall in May
Missouri Valley, IA

Average snowfall in May - Missouri Valley, IA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Missouri Valley, IA

Average snowfall days in May - Missouri Valley, IA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Missouri Valley, IA

Average daylight in May / Average sunshine in May - Missouri Valley, IA
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in May: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in May
Missouri Valley, IA

Average sunshine days in May - Missouri Valley, IA
  • Average sunshine days in May: 13.1 days

The month with the most sunshine days is December (22.7 days).
The month with the least sunshine days is May (13.1 days).

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Average UV index in May
Missouri Valley, IA

Average UV index in May - Missouri Valley, IA
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

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Average cloud cover in May
Missouri Valley, IA

Average cloud cover in May - Missouri Valley, IA
  • Average cloud cover in May: 39

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in May
Missouri Valley, IA

Average visibility in May - Missouri Valley, IA
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Missouri Valley, Iowa, USA

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