Climate and monthly weather forecast
Decatur, TX

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Weather in January

January, like December, in Decatur, Texas, is a cool winter month, with an average temperature varying between 54°F (12.2°C) and 37.4°F (3°C). The lowest temperatures are recorded in January, with averages reaching a high of 54°F (12.2°C) and a low of 37.4°F (3°C). Weather in January »

Weather in February

February, the last month of the winter in Decatur, is a mild month, with an average temperature fluctuating between 40.8°F (4.9°C) and 57.4°F (14.1°C). Decatur marks the start of February with an average high-temperature of a moderate 57.4°F (14.1°C), hinting at a slight fluctuation from January's 54°F (12.2°C). Weather in February »

Weather in March

March, the first month of the spring in Decatur, is an enjoyable month, with an average temperature varying between 67.1°F (19.5°C) and 48.9°F (9.4°C). March's arrival is marked by an increase in the average high-temperature, moving from a mild 57.4°F (14.1°C) in February to an enjoyable 67.1°F (19.5°C). Weather in March »

Weather in April

April is a warm spring month in Decatur, Texas, with an average temperature ranging between max 74.3°F (23.5°C) and min 54.9°F (12.7°C). In Decatur, the average high-temperature in April slightly rises, from a refreshing 67.1°F (19.5°C) in March, to a moderately hot 74.3°F (23.5°C). Weather in April »

Weather in May

May, the last month of the spring in Decatur, is another warm month, with temperature in the range of an average high of 80.6°F (27°C) and an average low of 62.8°F (17.1°C). The onset of May marks a slight increase in the average high-temperature, moving from a warm 74.3°F (23.5°C) in April to a still moderately hot 80.6°F (27°C). Weather in May »

Weather in June

June, the first month of the summer in Decatur, is a tropical month, with an average temperature fluctuating between 90.1°F (32.3°C) and 71.8°F (22.1°C). June brings an increase in the average high-temperature, progressing from a moderately hot 80.6°F (27°C) in May to a hot 90.1°F (32.3°C). Weather in June »

Weather in July

July, the same as June, in Decatur, Texas, is another hot summer month, with an average temperature varying between 94.1°F (34.5°C) and 74.3°F (23.5°C). The commencement of July records an average high-temperature of a still hot 94.1°F (34.5°C), barely varying from June's 90.1°F (32.3°C). Weather in July »

Weather in August

The last month of the summer, August, is a very hot month in Decatur, Texas, with an average temperature varying between 74.8°F (23.8°C) and 95.2°F (35.1°C). The warmest time of the year is August, with temperatures averaging a high of 95.2°F (35.1°C) and a low of 74.8°F (23.8°C). August's mean heat index is computed to be a blisteringly hot 109.4°F (43°C). Weather in August »

Weather in September

September, the first month of the autumn in Decatur, is still a tropical month, with an average temperature ranging between max 86.4°F (30.2°C) and min 68.2°F (20.1°C). The transition into September subtly indicates a reduction in the average high-temperature, down to a tropical 86.4°F (30.2°C) from August's torrid 95.2°F (35.1°C). Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Decatur, Texas, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 56.5°F (13.6°C). In Decatur, the average high-temperature in October drops from a hot 86.4°F (30.2°C) in September to a moderately hot 74.8°F (23.8°C). Weather in October »

Weather in November

The last month of the autumn, November, is another refreshing month in Decatur, Texas, with an average temperature fluctuating between 63.5°F (17.5°C) and 47.1°F (8.4°C). November involves a decrease in temperature, down from a moderately hot 74.8°F (23.8°C) in October to a refreshing 63.5°F (17.5°C). Weather in November »

Weather in December

December, the first month of the winter in Decatur, is still a cool month, with an average temperature varying between 39.4°F (4.1°C) and 54.3°F (12.4°C). As November transitions into December, Decatur sees a drop in the average high-temperature, transitioning from an enjoyable 63.5°F (17.5°C) to a cool 54.3°F (12.4°C). Weather in December »
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Frequently asked questions

What is the coldest month in Decatur?

January, known for its average high temperature of 54°F (12.2°C) and an average low temperature of 37.4°F (3°C), is the coldest month.

What is the driest month in Decatur?

The month with the least rainfall in Decatur is January, when the rain falls for 5.7 days and typically collects 1.34" (34mm) of precipitation.

How many days does it rain in Decatur?

Throughout the year, in Decatur, Texas, there are 131.9 rainfall days, and 28.31" (719mm) of precipitation is accumulated.

When does it snow in Decatur?

Months with snowfall are January through March and December.

How many days does it snow in Decatur?

Throughout the year, there are 3.5 snowfall days, and 1.69" (43mm) of snow is accumulated.

When is the lowest UV index in Decatur?

The months with the lowest UV index in Decatur are January and December, with an average maximum UV index of 3.

When does it snow the most in Decatur?

February is the month with the most snowfall in Decatur. Snow falls for 1.9 days and accumulates 1.14" (29mm) 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, 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 Decatur?

April through November are months without snowfall in Decatur, Texas.

What is the most humid month in Decatur?

May is the most humid month, with an average relative humidity of 74%.

When are the longest days in Decatur?

June has the longest days of the year in Decatur, with an average of 14h and 18min of daylight.

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

The months with the highest UV index are June through August, with an average maximum UV index of 7.

What month has the most sunshine in Decatur?

July has the most sunshine of the year, with an average of 11.1h of sunshine.

What part of the year is the hottest in Decatur?

August is the month when Decatur experiences its warmest temperatures, averaging a high of 95.2°F (35.1°C) and a low of 74.8°F (23.8°C).

What is the least humid month in Decatur?

The least humid month is August, with an average relative humidity of 56%.

What is the wettest month in Decatur?

October is the month with the most rainfall in Decatur, Texas. Rain falls for 11.3 days and accumulates 3.62" (92mm) of precipitation.

What is the month with the shortest days in Decatur?

December has the shortest days of the year, with an average of 10h and 0min of daylight.

What is the month with the least sunshine in Decatur?

With an average of 5.9h of sunshine, December has the least sunshine of the year in Decatur, Texas.

Average temperature
Decatur, TX

Average temperature - Decatur, TX

The warmest month (with the highest average high temperature) is August (95.2°F).
The month with the lowest average high temperature is January (54°F).

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).

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Average pressure
Decatur, TX

Average pressure - Decatur, TX

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
Decatur, TX

Average wind speed - Decatur, TX

The windiest months (with the highest average wind speed) are March and April (10.7mph).
The calmest month (with the lowest average wind speed) is September (7mph).

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Average rainfall
Decatur, TX

Average rainfall - Decatur, TX

The wettest month (with the highest rainfall) is October (3.62").
The driest month (with the least rainfall) is January (1.34").

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Average rainfall days
Decatur, TX

Average rainfall days - Decatur, TX

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.7 days).

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Average snowfall
Decatur, TX

Average snowfall - Decatur, TX

The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days
Decatur, TX

Average snowfall days - Decatur, TX

The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Decatur, TX

Average daylight / Average sunshine - Decatur, TX

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days
Decatur, TX

Average sunshine days - Decatur, TX

The month with the most sunshine days is January (23.6 days).
The month with the least sunshine days is May (13.5 days).

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Average visibility
Decatur, TX

Average visibility - Decatur, TX

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, Texas, USA

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