Climate and monthly weather forecast
Plymouth, IA

Weather in January

January, the same as December, in Plymouth, Iowa, is another subzero cold winter month, with an average temperature varying between 22.5°F (-5.3°C) and 10°F (-12.2°C). The coldest month is January, with an average high-temperature of 22.5°F (-5.3°C) and an average low-temperature of 10°F (-12.2°C). Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Plymouth, Iowa, with an average temperature varying between 26.6°F (-3°C) and 13.5°F (-10.3°C). In Plymouth, the average high-temperature in February is relatively the same as in January - a still subzero cold 26.6°F (-3°C). Weather in February »

Weather in March

The first month of the spring, March, is a cold month in Plymouth, Iowa, with an average temperature ranging between min 27.7°F (-2.4°C) and max 41.5°F (5.3°C). In March, the average high-temperature significantly increases from a subzero cold 26.6°F (-3°C) in February to a wintry 41.5°F (5.3°C). Weather in March »

Weather in April

April in Plymouth, Iowa, is a cool spring month, with an average temperature ranging between min 39.4°F (4.1°C) and max 54.9°F (12.7°C). In Plymouth, the average high-temperature in April increases from a wintry 41.5°F (5.3°C) in March to a fresh 54.9°F (12.7°C). Weather in April »

Weather in May

May, the last month of the spring in Plymouth, is an enjoyable month, with an average temperature varying between 50.5°F (10.3°C) and 66.9°F (19.4°C). In May, the average high-temperature increases from a cool 54.9°F (12.7°C) in April to an enjoyable 66.9°F (19.4°C). Weather in May »

Weather in June

June, the first month of the summer in Plymouth, is a warm month, with temperature in the range of an average high of 76.8°F (24.9°C) and an average low of 60.6°F (15.9°C). In Plymouth, the average high-temperature in June rises from an enjoyable 66.9°F (19.4°C) in May to a moderately hot 76.8°F (24.9°C). Weather in June »

Weather in July

July, like June, in Plymouth, Iowa, is another warm summer month, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 62.6°F (17°C). The warmest month is July, with an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 62.6°F (17°C). Weather in July »

Weather in August

August, the last month of the summer in Plymouth, is also a moderately hot month, with temperature in the range of an average low of 59.9°F (15.5°C) and an average high of 77.5°F (25.3°C). In Plymouth, the average high-temperature in August is essentially the same as in July - a still moderately hot 77.5°F (25.3°C). Weather in August »

Weather in September

September, the first month of the autumn in Plymouth, is also an agreeable month, with an average temperature ranging between min 53.4°F (11.9°C) and max 72.5°F (22.5°C). In Plymouth, Iowa, the average high-temperature in September is relatively the same as in August - an agreeable 72.5°F (22.5°C). Weather in September »

Weather in October

October, the same as September, in Plymouth, Iowa, is another mild autumn month, with an average temperature varying between 42.6°F (5.9°C) and 57.6°F (14.2°C). In October, the average high-temperature significantly decreases from a pleasant 72.5°F (22.5°C) in September to a moderate 57.6°F (14.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Plymouth, Iowa, with an average temperature fluctuating between 30.2°F (-1°C) and 42.8°F (6°C). In November, the average high-temperature plummets from a moderate 57.6°F (14.2°C) in October to a chilly 42.8°F (6°C). Weather in November »

Weather in December

December, the first month of the winter in Plymouth, is still a freezing cold month, with an average temperature varying between 18°F (-7.8°C) and 28.4°F (-2°C). In Plymouth, the average high-temperature in December plummets from a frosty 42.8°F (6°C) in November to a freezing cold 28.4°F (-2°C). Weather in December »
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FAQ

What is the coldest month in Plymouth?

The coldest month in Plymouth is January, with an average high-temperature of 22.5°F (-5.3°C) and an average low-temperature of 10°F (-12.2°C).

What is the most humid month in Plymouth?

The most humid month in Plymouth is January, with an average relative humidity of 89%.

What is the driest month in Plymouth?

The month with the least rainfall is January, when the rain falls for 3.8 days and typically collects 0.94" (24mm) of precipitation.

How many days does it rain in Plymouth?

In Plymouth, Iowa, during the entire year, the rain falls for 129.5 days and collects up to 25.98" (660mm) of precipitation.

When does it snow in Plymouth?

January through May, October through December are months with snowfall in Plymouth, Iowa.

How much does it snow in Plymouth?

In Plymouth, Iowa, during the entire year, snow falls for 50.1 days and aggregates up to 21.69" (551mm) of snow.

What is the month with the least sunshine in Plymouth?

The month with the least sunshine is January, with an average of 3.6h of sunshine.

What is the month with the lowest UV index in Plymouth?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

When does it snow the most in Plymouth?

February is the month with the most snowfall in Plymouth. Snow falls for 10.7 days and accumulates 5.94" (151mm) of snow.

When is Daylight Saving Time (DST) in Plymouth?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from CDT to CST.

What is the rainiest month in Plymouth?

June is the month with the most rainfall in Plymouth. Rain falls for 17.8 days and accumulates 3.98" (101mm) of precipitation.

When it does not snow in Plymouth?

In Plymouth, snow does not fall in June through September.

When are the longest days in Plymouth?

With an average of 15h and 20min of daylight, June has the longest days of the year in Plymouth.

When is the highest UV index in Plymouth?

June and July, with an average maximum UV index of 6, are months with the highest UV index in Plymouth.

What is the warmest month in Plymouth?

July is the warmest month in Plymouth, Iowa, with an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 62.6°F (17°C).

What are the months with the most sunshine in Plymouth?

The months with the most sunshine in Plymouth are July and August, with an average of 9.7h of sunshine.

What is the least humid month in Plymouth?

The least humid month is October, with an average relative humidity of 71%.

What is the month with the shortest days in Plymouth?

December has the shortest days of the year in Plymouth, Iowa, with an average of 9h and 2min of daylight.

Average temperature
Plymouth, IA

Average temperature - Plymouth, IA

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.5°F).

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (10°F).

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Average pressure
Plymouth, IA

Average pressure - Plymouth, IA

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed
Plymouth, IA

Average wind speed - Plymouth, IA

The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).

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Average rainfall
Plymouth, IA

Average rainfall - Plymouth, IA

The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (0.94").

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Average rainfall days
Plymouth, IA

Average rainfall days - Plymouth, IA

The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (3 days).

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Average snowfall
Plymouth, IA

Average snowfall - Plymouth, IA

The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Plymouth, IA

Average snowfall days - Plymouth, IA

The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Plymouth, IA

Average daylight / Average sunshine - Plymouth, IA

The month with the longest days is June (Average daylight: 15h and 20min).
The month with the shortest days is December (Average daylight: 9h and 2min).

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days
Plymouth, IA

Average sunshine days - Plymouth, IA

The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is June (10.5 days).

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Average visibility
Plymouth, IA

Average visibility - Plymouth, IA

The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).

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