Climate and monthly weather forecast
Seymour, IA

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Weather in January

January, the same as December, in Seymour, Iowa, is a freezing cold winter month, with an average temperature fluctuating between 30°F (-1.1°C) and 16.5°F (-8.6°C). January, having an average high-temperature of 30°F (-1.1°C) and an average low-temperature of 16.5°F (-8.6°C), is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Seymour, is a cold month, with temperature in the range of an average low of 19.8°F (-6.8°C) and an average high of 34.2°F (1.2°C). Seymour's shift from January to February is accompanied by an average high-temperature of an icy 34.2°F (1.2°C), a slight deviation from 30°F (-1.1°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Seymour, Iowa, with temperature in the range of an average low of 33.4°F (0.8°C) and an average high of 48.7°F (9.3°C). The shift from February to March sees a distinct increase in the average high-temperature, escalating from an icy 34.2°F (1.2°C) to a frosty 48.7°F (9.3°C). Weather in March »

Weather in April

April is a refreshing spring month in Seymour, Iowa, with an average temperature ranging between max 60.4°F (15.8°C) and min 42.8°F (6°C). April marks a rise in the average high-temperature, moving from March's frosty 48.7°F (9.3°C) to a mild 60.4°F (15.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Seymour, Iowa, with an average temperature ranging between min 52.9°F (11.6°C) and max 69.4°F (20.8°C). May shows a rise in the average high-temperature, moving from April's moderate 60.4°F (15.8°C) to an agreeable 69.4°F (20.8°C). Weather in May »

Weather in June

June, the first month of the summer in Seymour, is a moderately hot month, with an average temperature fluctuating between 63.1°F (17.3°C) and 79.7°F (26.5°C). June sees a rise in the average high-temperature, climbing from an agreeable 69.4°F (20.8°C) in May to a moderately hot 79.7°F (26.5°C). Weather in June »

Weather in July

July, like June, in Seymour, Iowa, is another warm summer month, with an average temperature varying between 66°F (18.9°C) and 83.3°F (28.5°C). With average high and low temperatures of 83.3°F (28.5°C) and 66°F (18.9°C) respectively, July is Seymour's warmest month. In July, the heat index is appraised at a hot 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Seymour, Iowa, with temperature in the range of an average low of 63.7°F (17.6°C) and an average high of 82°F (27.8°C). The advent of August denotes an average high-temperature of a still moderately hot 82°F (27.8°C), subtly different from July's 83.3°F (28.5°C). Weather in August »

Weather in September

September, the first month of the autumn in Seymour, is still a warm month, with an average temperature varying between 56.5°F (13.6°C) and 75.9°F (24.4°C). As Seymour enters September, the average high-temperature subtly lowers from the 82°F (27.8°C) of August to a still warm 75.9°F (24.4°C). Weather in September »

Weather in October

October, like September, in Seymour, Iowa, is another comfortable autumn month, with an average temperature varying between 44.4°F (6.9°C) and 61.7°F (16.5°C). October comes with a drop in the average high-temperature, falling from September's moderately hot 75.9°F (24.4°C) to an enjoyable 61.7°F (16.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Seymour, Iowa, with an average temperature ranging between min 33.3°F (0.7°C) and max 48.4°F (9.1°C). The arrival of November signals a shift in temperature, down from an enjoyable 61.7°F (16.5°C) in October to a chilly 48.4°F (9.1°C). Weather in November »

Weather in December

December, the first month of the winter in Seymour, is still a cold month, with temperature in the range of an average low of 23.5°F (-4.7°C) and an average high of 35.6°F (2°C). Seymour's weather in December involves a decrease in the average high-temperature, moving down from November's frosty 48.4°F (9.1°C) to a cold 35.6°F (2°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Seymour?

January is the coldest month of the year, registering average temperatures as high as 30°F (-1.1°C) and as low as 16.5°F (-8.6°C).

What is the driest month in Seymour?

The months with the least rainfall in Seymour, Iowa, are January and December Rain falls for 4.5 days and accumulates 0.71" (18mm) of rain.

How many days does it rain in Seymour?

Throughout the year, in Seymour, there are 125.7 rainfall days, and 20.39" (518mm) of precipitation is accumulated.

When does it snow in Seymour?

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

What is the snowiest month in Seymour?

The month with the most snowfall is January, when snow falls for 8.6 days and typically aggregates up to 3.23" (82mm) of snow.

How much does it snow in Seymour?

Throughout the year, in Seymour, there are 28.4 snowfall days, and 11.34" (288mm) of snow is accumulated.

What is the month with the least sunshine in Seymour?

January has the least sunshine of the year in Seymour, with an average of 4.3h of sunshine.

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

The month with the lowest UV index in Seymour, Iowa, is January, with an average maximum UV index of 1.

When is Daylight Saving Time (DST) in Seymour?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.

What is the most humid month in Seymour?

June is the most humid month in Seymour, with an average relative humidity of 83%.

What is the rainiest month in Seymour?

The month with the most rainfall is June, when the rain falls for 16.1 days and typically aggregates up to 3.31" (84mm) of precipitation.

When it does not snow in Seymour?

June through September are months without snowfall.

When are the longest days in Seymour?

The month with the longest days in Seymour is June, with an average of 15h and 0min of daylight.

What are the months with the highest UV index in Seymour?

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

What month is the hottest in Seymour?

July registers as the month with the average highest temperatures in Seymour, reaching 83.3°F (28.5°C) at its peak and 66°F (18.9°C) at the lowest.

What month has the most sunshine in Seymour?

The month with the most sunshine is July, with an average of 10.4h of sunshine.

What is the least humid month in Seymour?

The least humid month is October, with an average relative humidity of 72%.

What is the month with the shortest days in Seymour?

The month with the shortest days in Seymour, Iowa, is December, with an average of 9h and 18min of daylight.

Average pressure
Seymour, IA

Average pressure - Seymour, IA

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed
Seymour, IA

Average wind speed - Seymour, IA

The windiest months (with the highest average wind speed) are January and March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average rainfall
Seymour, IA

Average rainfall - Seymour, IA

The wettest month (with the highest rainfall) is June (3.31").
The driest months (with the least rainfall) are January and December (0.71").

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Average rainfall days
Seymour, IA

Average rainfall days - Seymour, IA

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.5 days).

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Average snowfall
Seymour, IA

Average snowfall - Seymour, IA

The month with the highest snowfall is January (3.23").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Seymour, IA

Average snowfall days - Seymour, IA

The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Seymour, IA

Average daylight / Average sunshine - Seymour, IA

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days
Seymour, IA

Average sunshine days - Seymour, IA

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (10.7 days).

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Average visibility
Seymour, IA

Average visibility - Seymour, 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).

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Seymour, Iowa, USA

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