Climate and monthly weather forecast
Seymour, IN

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Weather in January

January, the same as December, is a wintry winter month in Seymour, Indiana, with temperature in the range of an average high of 36.7°F (2.6°C) and an average low of 23.4°F (-4.8°C). January, recording an average high temperature of 36.7°F (2.6°C) and a low temperature of 23.4°F (-4.8°C), is Seymour's coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Seymour, Indiana, with an average temperature fluctuating between 27°F (-2.8°C) and 41.5°F (5.3°C). The transition from January to February sees average high-temperatures adjusting to a still wintry 41.5°F (5.3°C), from a not significantly different 36.7°F (2.6°C). Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Seymour, Indiana, with an average temperature fluctuating between 52.3°F (11.3°C) and 36.1°F (2.3°C). The arrival of March brings a change in Seymour's weather, with average high-temperatures moving from February's icy 41.5°F (5.3°C) to a fresh 52.3°F (11.3°C). Weather in March »

Weather in April

April in Seymour, Indiana, is a comfortable spring month, with an average temperature fluctuating between 64°F (17.8°C) and 46°F (7.8°C). Entering April, Seymour sees a temperature rise, with the average high-temperature advancing from March's fresh 52.3°F (11.3°C) to a refreshing 64°F (17.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Seymour, Indiana, with an average temperature ranging between min 55.9°F (13.3°C) and max 73.8°F (23.2°C). Observing a rise in May, the average high-temperature goes from April's enjoyable 64°F (17.8°C) to a warm 73.8°F (23.2°C). Weather in May »

Weather in June

June, the first month of the summer in Seymour, is also a moderately hot month, with an average temperature ranging between min 63.5°F (17.5°C) and max 82°F (27.8°C). Seymour's transition into June is marked by a minor temperature shift, moving from a warm 73.8°F (23.2°C) in May to a still moderately hot 82°F (27.8°C). Weather in June »

Weather in July

July, like June, in Seymour, Indiana, is another warm summer month, with an average temperature varying between 65.8°F (18.8°C) and 84.7°F (29.3°C). July brings the highest temperatures, with an average high of 84.7°F (29.3°C) and an average low of 65.8°F (18.8°C). The heat index for July is appraised at a fiery hot 95°F (35°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Seymour, Indiana, with an average temperature ranging between min 64.2°F (17.9°C) and max 83.8°F (28.8°C). The shift into August finds Seymour at an average high-temperature of a still moderately hot 83.8°F (28.8°C), closely comparable to July's conditions. Weather in August »

Weather in September

September, the first month of the autumn in Seymour, is still a warm month, with temperature in the range of an average high of 78.1°F (25.6°C) and an average low of 58.5°F (14.7°C). September indicates a minor shift in the average high-temperature, from August's 83.8°F (28.8°C) to a still warm 78.1°F (25.6°C). Weather in September »

Weather in October

October, like September, in Seymour, Indiana, is another comfortable autumn month, with an average temperature varying between 47.3°F (8.5°C) and 65.5°F (18.6°C). Stepping into October, Seymour observes a temperature decline, with the average high falling from September's moderately hot 78.1°F (25.6°C) to an enjoyable 65.5°F (18.6°C). Weather in October »

Weather in November

November, the last month of the autumn in Seymour, is another cool month, with an average temperature fluctuating between 36.5°F (2.5°C) and 51.4°F (10.8°C). A decrease in the average high-temperature is observed during November, shifting from a comfortable 65.5°F (18.6°C) in October to a fresh 51.4°F (10.8°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Seymour, Indiana, with an average temperature ranging between min 30.4°F (-0.9°C) and max 41.9°F (5.5°C). December indicates a shift in the average high-temperature, from November's cool 51.4°F (10.8°C) to a wintry 41.9°F (5.5°C). Weather in December »

Frequently asked questions

What month is the coldest?

January is Seymour's coldest month, registering average high temperatures of 36.7°F (2.6°C) and lows of 23.4°F (-4.8°C).

How many days does it rain?

In Seymour, during the entire year, the rain falls for 163.7 days and collects up to 33.11" (841mm) of precipitation.

When does it snow in Seymour?

January through April, October through December are months with snowfall.

How much does it snow?

Throughout the year, there are 32.7 snowfall days, and 9.69" (246mm) of snow is accumulated.

What are the months with the least sunshine?

The months with the least sunshine are January and December, with an average of 4.1h of sunshine.

What are the months with the lowest UV index?

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

What is the snowiest month?

February is the month with the most snowfall. Snow falls for 8.6 days and accumulates 2.72" (69mm) of snow.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the wettest month?

The month with the most rainfall is April, when the rain falls for 16.7 days and typically aggregates up to 3.82" (97mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

When are the longest days?

With an average of 14h and 54min of daylight, June has the longest days of the year.

What are the months with the highest UV index?

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

What part of the year is the hottest?

July temperatures tend to peak at an average high of 84.7°F (29.3°C) and dip to a low of 65.8°F (18.8°C).

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.3h of sunshine.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12.9 days and typically collects 1.85" (47mm) of precipitation.

What is the least humid month?

The least humid month is October, with an average relative humidity of 74%.

What is the most humid month?

With an average relative humidity of 81%, December is the most humid month.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

Average temperature
Seymour, IN

Average temperature - Seymour, IN

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.7°F).

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure
Seymour, IN

Average pressure - Seymour, IN

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed
Seymour, IN

Average wind speed - Seymour, IN

The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity
Seymour, IN

Average humidity - Seymour, IN

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (74%).

Average rainfall
Seymour, IN

Average rainfall - Seymour, IN

The wettest month (with the highest rainfall) is April (3.82").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days
Seymour, IN

Average rainfall days - Seymour, IN

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (9.9 days).

Average snowfall
Seymour, IN

Average snowfall - Seymour, IN

The month with the highest snowfall is February (2.72").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Seymour, IN

Average snowfall days - Seymour, IN

The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Seymour, IN

Average daylight / Average sunshine - Seymour, IN

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 6min).

Average sunshine days
Seymour, IN

Average sunshine days - Seymour, IN

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (9.6 days).

Average UV index
Seymour, IN

Average UV index - Seymour, IN

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, November and December (UV index 2).

Average visibility
Seymour, IN

Average visibility - Seymour, IN

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

Seymour, Indiana, USA

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