Climate and monthly weather forecast
Missouri Valley, IA

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Weather in January

January, like December, is another subzero cold winter month in Missouri Valley, Iowa, with an average temperature ranging between max 28.9°F (-1.7°C) and min 15.3°F (-9.3°C). January stands out as Missouri Valley's coldest month, with an average high-temperature of 28.9°F (-1.7°C) and a low-temperature of 15.3°F (-9.3°C). Weather in January »

Weather in February

February, the last month of the winter in Missouri Valley, is a wintry month, with an average temperature fluctuating between 18.9°F (-7.3°C) and 33.1°F (0.6°C). February's presence marks an average high-temperature of an icy 33.1°F (0.6°C), subtly varied from January's 28.9°F (-1.7°C). Weather in February »

Weather in March

March, the first month of the spring in Missouri Valley, is a chilly month, with an average temperature varying between 32.9°F (0.5°C) and 48.7°F (9.3°C). A distinct shift in the average high-temperature is signaled in March, moving up from a cold 33.1°F (0.6°C) in February to a chilly 48.7°F (9.3°C). Weather in March »

Weather in April

April is a refreshing spring month in Missouri Valley, Iowa, with an average temperature fluctuating between 42.6°F (5.9°C) and 60.6°F (15.9°C). April signals a shift in the average high-temperature, moving from March's frosty 48.7°F (9.3°C) to a refreshing 60.6°F (15.9°C). Weather in April »

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). 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). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Missouri Valley, Iowa, with an average temperature ranging between max 81°F (27.2°C) and min 63.9°F (17.7°C). June's arrival signals an increase in average high-temperatures, moving from May's pleasant 70.9°F (21.6°C) to a warm 81°F (27.2°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Missouri Valley, Iowa, with an average temperature fluctuating between 65.5°F (18.6°C) and 84.2°F (29°C). July, marked by an average high-temperature of 84.2°F (29°C) and a low-temperature of 65.5°F (18.6°C), is the warmest month. For most parts of July, the heat index is evaluated at a tropical 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Missouri Valley, Iowa, with an average temperature ranging between min 62.4°F (16.9°C) and max 82°F (27.8°C). Missouri Valley in August witnesses an average high-temperature of a still moderately hot 82°F (27.8°C), indicating a slight variation from July's 84.2°F (29°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Missouri Valley, Iowa, with an average temperature fluctuating between 76.8°F (24.9°C) and 56.5°F (13.6°C). September's average high-temperature stands at a still moderately hot 76.8°F (24.9°C), showing little deviation from August's 82°F (27.8°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Missouri Valley, Iowa, with an average temperature fluctuating between 45°F (7.2°C) and 61°F (16.1°C). The changeover to October signals a significant decrease in the average high-temperature, dropping from a moderately hot 76.8°F (24.9°C) in September to a comfortable 61°F (16.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Missouri Valley, Iowa, with temperature in the range of an average high of 47.7°F (8.7°C) and an average low of 32.9°F (0.5°C). Missouri Valley's weather changes with the onset of November, slightly falling from a refreshing 61°F (16.1°C) in October to a chilly 47.7°F (8.7°C). Weather in November »

Weather in December

December, the first month of the winter in Missouri Valley, is also a wintry month, with an average temperature ranging between min 21.4°F (-5.9°C) and max 33.3°F (0.7°C). Missouri Valley's December weather comes with a decrease in average high-temperatures, moving from a chilly 47.7°F (8.7°C) in November to a wintry 33.3°F (0.7°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Missouri Valley?

In Missouri Valley, January is the month with the lowest recorded average temperatures, measuring a high of 28.9°F (-1.7°C) and a low of 15.3°F (-9.3°C).

What is the most humid month in Missouri Valley?

January is the most humid month, with an average relative humidity of 81%.

What is the driest month in Missouri Valley?

The month with the least rainfall in Missouri Valley, Iowa, is January, when the rain falls for 2.4 days and typically collects 0.39" (10mm) of precipitation.

How many days does it rain in Missouri Valley?

In Missouri Valley, during the entire year, the rain falls for 108.1 days and collects up to 16.1" (409mm) of precipitation.

When does it snow in Missouri Valley?

Months with snowfall in Missouri Valley, Iowa, are January through April, October through December.

How many days does it snow in Missouri Valley?

Throughout the year, in Missouri Valley, there are 27.6 snowfall days, and 7.28" (185mm) of snow is accumulated.

What is the month with the least sunshine in Missouri Valley?

The month with the least sunshine in Missouri Valley, Iowa, is January, with an average of 4.6h of sunshine.

What is the month with the lowest UV index in Missouri Valley?

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the snowiest month in Missouri Valley?

February is the month with the most snowfall in Missouri Valley. Snow falls for 6.8 days and accumulates 1.85" (47mm) of snow.

When is Daylight Saving Time (DST) in Missouri Valley?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Missouri Valley, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

When it does not snow in Missouri Valley?

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

What is the rainiest month in Missouri Valley?

The month with the most rainfall in Missouri Valley is June, when the rain falls for 14.3 days and typically aggregates up to 2.68" (68mm) of precipitation.

When are the longest days in Missouri Valley?

The month with the longest days is June, with an average of 15h and 6min of daylight.

What are the months with the highest UV index in Missouri Valley?

The months with the highest UV index in Missouri Valley, Iowa, are June through August, with an average maximum UV index of 6.

What month is the hottest in Missouri Valley?

Missouri Valley's July weather reaches an average high of 84.2°F (29°C) and an average low of 65.5°F (18.6°C), making it the warmest month.

What month has the most sunshine in Missouri Valley?

July has the most sunshine of the year, with an average of 10.6h of sunshine.

What is the least humid month in Missouri Valley?

October is the least humid month, with an average relative humidity of 66%.

What is the month with the shortest days in Missouri Valley?

The month with the shortest days in Missouri Valley is December, with an average of 9h and 12min of daylight.

Average temperature
Missouri Valley, IA

Average temperature - Missouri Valley, IA

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).

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).

Average pressure
Missouri Valley, IA

Average pressure - Missouri Valley, IA

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

Average wind speed
Missouri Valley, IA

Average wind speed - Missouri Valley, IA

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).

Average humidity
Missouri Valley, IA

Average humidity - Missouri Valley, IA

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

Average rainfall
Missouri Valley, IA

Average rainfall - Missouri Valley, IA

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

Average rainfall days
Missouri Valley, IA

Average rainfall days - Missouri Valley, IA

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).

Average snowfall
Missouri Valley, IA

Average snowfall - Missouri Valley, IA

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

Average snowfall days
Missouri Valley, IA

Average snowfall days - Missouri Valley, IA

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).

Average daylight / Average sunshine
Missouri Valley, IA

Average daylight / Average sunshine - Missouri Valley, IA

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).

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).

Average sunshine days
Missouri Valley, IA

Average sunshine days - Missouri Valley, IA

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

Average UV index
Missouri Valley, IA

Average UV index - Missouri Valley, IA

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).

Average visibility
Missouri Valley, IA

Average visibility - Missouri Valley, IA

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).

Missouri Valley, Iowa, USA

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