Climate and monthly weather forecast
Decatur, AR

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Weather in January

January, the same as December, in Decatur, Arkansas, is another chilly winter month, with temperature in the range of an average high of 44.4°F (6.9°C) and an average low of 28.4°F (-2°C). The month of January, characterized by an average high of 44.4°F (6.9°C) and a low of 28.4°F (-2°C), is recognized as the coldest. Weather in January »

Weather in February

The last month of the winter, February, is also a frosty month in Decatur, Arkansas, with an average temperature varying between 48.6°F (9.2°C) and 32°F (0°C). Decatur starts February with an average high-temperature of a still frosty 48.6°F (9.2°C), hinting at a minimal fluctuation from January. Weather in February »

Weather in March

The first month of the spring, March, is a refreshing month in Decatur, Arkansas, with temperature in the range of an average low of 41°F (5°C) and an average high of 59°F (15°C). As February transitions into March, a change in temperatures is observed, with average highs moving from a chilly 48.6°F (9.2°C) to a mild 59°F (15°C). Weather in March »

Weather in April

April in Decatur, Arkansas, is an agreeable spring month, with an average temperature varying between 68.4°F (20.2°C) and 49.1°F (9.5°C). The shift into April is accompanied by a temperature increase, with the average high-temperature rising from a moderate 59°F (15°C) in March to an agreeable 68.4°F (20.2°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Decatur, Arkansas, with an average temperature fluctuating between 57.6°F (14.2°C) and 76.6°F (24.8°C). Observing a slight rise in May, the average high-temperature shifts from April's agreeable 68.4°F (20.2°C) to a moderately hot 76.6°F (24.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a hot month in Decatur, Arkansas, with an average temperature fluctuating between 66.9°F (19.4°C) and 87.3°F (30.7°C). June brings a rise in the average high-temperature, transitioning from May's moderately hot 76.6°F (24.8°C) to a hot 87.3°F (30.7°C). Weather in June »

Weather in July

July, like June, is another hot summer month in Decatur, Arkansas, with an average temperature ranging between min 69.6°F (20.9°C) and max 90.5°F (32.5°C). The month of July sees the highest average temperatures, reaching 90.5°F (32.5°C) at the peak and 69.6°F (20.9°C) at the low. July's mean heat index is appraised at a blistering 107.6°F (42°C). Weather in July »

Weather in August

August, the last month of the summer in Decatur, is another hot month, with temperature in the range of an average high of 88.9°F (31.6°C) and an average low of 68.2°F (20.1°C). Decatur experiences an average high-temperature of a still tropical 88.9°F (31.6°C) in August, subtly different from July's 90.5°F (32.5°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Decatur, Arkansas, with an average temperature varying between 61.5°F (16.4°C) and 81.7°F (27.6°C). The onset of September is marked by a minor decrease in temperature, transitioning from a tropical 88.9°F (31.6°C) in August to a warm 81.7°F (27.6°C). Weather in September »

Weather in October

October, the same as September, in Decatur, Arkansas, is an agreeable autumn month, with an average temperature ranging between min 49.8°F (9.9°C) and max 68.9°F (20.5°C). In Decatur, the beginning of October is marked by a lowered average high-temperature, shifting from September's moderately hot 81.7°F (27.6°C) to an agreeable 68.9°F (20.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Decatur, is also a moderate month, with an average temperature ranging between min 39.9°F (4.4°C) and max 57°F (13.9°C). As Decatur enters November, the average high-temperature decreases from the a pleasant 68.9°F (20.5°C) of October to a moderate 57°F (13.9°C). Weather in November »

Weather in December

December, the first month of the winter in Decatur, is still a chilly month, with an average temperature ranging between max 46.6°F (8.1°C) and min 32°F (0°C). Decatur's progression into December includes a drop in the average high-temperature, from a refreshing 57°F (13.9°C) in November to a chilly 46.6°F (8.1°C). Weather in December »
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Frequently asked questions

What is the coldest time of year in Decatur?

Decatur's January weather, with an average high temperature of 44.4°F (6.9°C) and an average low temperature of 28.4°F (-2°C), tends to be the coldest of the year.

How many days does it rain in Decatur?

Throughout the year, in Decatur, there are 139.7 rainfall days, and 31.02" (788mm) of precipitation is accumulated.

When does it snow in Decatur?

Months with snowfall in Decatur, Arkansas, are January through May, November and December.

How much does it snow in Decatur?

Throughout the year, in Decatur, there are 13.9 snowfall days, and 4.8" (122mm) of snow is accumulated.

What are the months with the least sunshine in Decatur?

The months with the least sunshine in Decatur are January and December, with an average of 5.4h of sunshine.

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

The months with the lowest UV index in Decatur, Arkansas, are January and December, with an average maximum UV index of 2.

What is the driest month in Decatur?

February is the month with the least rainfall in Decatur. Rain falls for 9.5 days and accumulates 1.89" (48mm) of precipitation.

What is the snowiest month in Decatur?

The month with the most snowfall in Decatur, Arkansas, is February, when snow falls for 4.7 days and typically aggregates up to 1.46" (37mm) of snow.

When is Daylight Saving Time (DST) in Decatur?

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

The most humid month is May, with an average relative humidity of 77%.

What is the rainiest month in Decatur?

The month with the most rainfall in Decatur is May, when the rain falls for 15.5 days and typically aggregates up to 4.37" (111mm) of precipitation.

When it does not snow in Decatur?

June through October are months without snowfall.

When are the longest days in Decatur?

With an average of 14h and 36min of daylight, June has the longest days of the year in Decatur.

What is the hottest time of year in Decatur?

July is the month that records the highest temperatures in Decatur, with averages ranging from a high of 90.5°F (32.5°C) to a low of 69.6°F (20.9°C).

What month has the most sunshine in Decatur?

With an average of 10.8h of sunshine, July has the most sunshine of the year in Decatur.

What is the month with the highest UV index in Decatur?

With an average maximum UV index of 7, July is the month with the highest UV index in Decatur, Arkansas.

What is the least humid month in Decatur?

October is the least humid month, with an average relative humidity of 70%.

What is the month with the shortest days in Decatur?

With an average of 9h and 42min of daylight, December has the shortest days of the year.

Average pressure
Decatur, AR

Average pressure - Decatur, AR

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are April and June (29.93"Hg).

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Average wind speed
Decatur, AR

Average wind speed - Decatur, AR

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

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Average rainfall
Decatur, AR

Average rainfall - Decatur, AR

The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is February (1.89").

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Average rainfall days
Decatur, AR

Average rainfall days - Decatur, AR

The month with the highest number of rainy days is May (15.5 days).
The months with the least rainy days are January and November (8.5 days).

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Average snowfall
Decatur, AR

Average snowfall - Decatur, AR

The month with the highest snowfall is February (1.46").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days
Decatur, AR

Average snowfall days - Decatur, AR

The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Decatur, AR

Average daylight / Average sunshine - Decatur, AR

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).

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Average sunshine days
Decatur, AR

Average sunshine days - Decatur, AR

The month with the most sunshine days is December (19.2 days).
The months with the least sunshine days are March and April (13.3 days).

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Average visibility
Decatur, AR

Average visibility - Decatur, AR

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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Decatur, Arkansas, USA

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