Climate and monthly weather forecast
Slidell, TX

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Weather in January

January, the same as December, is another fresh winter month in Slidell, Texas, with an average temperature fluctuating between 53.6°F (12°C) and 37.2°F (2.9°C). Slidell witnesses the coldest weather in January, with temperatures averaging a high of 53.6°F (12°C) and a low of 37.2°F (2.9°C). Weather in January »

Weather in February

The last month of the winter, February, is a mild month in Slidell, Texas, with temperature in the range of an average low of 40.3°F (4.6°C) and an average high of 57.4°F (14.1°C). The commencement of February records an average high-temperature of a refreshing 57.4°F (14.1°C), barely varying from January's 53.6°F (12°C). Weather in February »

Weather in March

The first month of the spring, March, is a refreshing month in Slidell, Texas, with an average temperature ranging between min 48.7°F (9.3°C) and max 66°F (18.9°C). March witnesses a subtle temperature ascent, adjusting from a moderate 57.4°F (14.1°C) in February to a still refreshing 66°F (18.9°C). Weather in March »

Weather in April

April in Slidell, Texas, is a warm spring month, with an average temperature varying between 73.6°F (23.1°C) and 54.9°F (12.7°C). April's arrival brings a slight change in high-temperatures, adjusting from a comfortable 66°F (18.9°C) in March to a warm 73.6°F (23.1°C). Weather in April »

Weather in May

May, the last month of the spring in Slidell, is another warm month, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 63.1°F (17.3°C). May introduces a marginal temperature uplift, with average high-temperatures adjusting from April's moderately hot 73.6°F (23.1°C) to a still warm 81°F (27.2°C). Weather in May »

Weather in June

June, the first month of the summer in Slidell, is a tropical month, with temperature in the range of an average high of 90°F (32.2°C) and an average low of 72.3°F (22.4°C). Slidell sees an increase in average high-temperatures during June, moving from a moderately hot 81°F (27.2°C) in May to a hot 90°F (32.2°C). Weather in June »

Weather in July

July, the same as June, in Slidell, Texas, is another hot summer month, with an average temperature varying between 75°F (23.9°C) and 93.9°F (34.4°C). The shift into July finds Slidell at an average high-temperature of a still tropical 93.9°F (34.4°C), closely comparable to June's conditions. Weather in July »

Weather in August

The last month of the summer, August, is a torrid month in Slidell, Texas, with an average temperature varying between 95.5°F (35.3°C) and 74.8°F (23.8°C). August, characterized by an average high temperature of 95.5°F (35.3°C) and a low temperature of 74.8°F (23.8°C), is generally the warmest month. For August, the heat index is appraised at a blisteringly hot 111.2°F (44°C). Weather in August »

Weather in September

September, the first month of the autumn in Slidell, is also a hot month, with temperature in the range of an average high of 86.9°F (30.5°C) and an average low of 68.9°F (20.5°C). The onset of September is marked by a minor decrease in temperature, transitioning from a very hot 95.5°F (35.3°C) in August to a hot 86.9°F (30.5°C). Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Slidell, Texas, with an average temperature fluctuating between 57.4°F (14.1°C) and 74.8°F (23.8°C). October brings a decrease in the average high-temperature, shifting from a hot 86.9°F (30.5°C) in September to a moderately hot 74.8°F (23.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Slidell, is also an enjoyable month, with an average temperature varying between 47.3°F (8.5°C) and 63.7°F (17.6°C). The onset of November introduces a moderate change in Slidell's weather, with average high-temperatures falling from October's moderately hot 74.8°F (23.8°C) to an enjoyable 63.7°F (17.6°C). Weather in November »

Weather in December

December, the first month of the winter in Slidell, is also a fresh month, with temperature in the range of an average high of 54.3°F (12.4°C) and an average low of 39.4°F (4.1°C). The onset of December is marked by a decrease in temperature, transitioning from a refreshing 63.7°F (17.6°C) in November to a cool 54.3°F (12.4°C). Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Slidell?

January stands out as Slidell's coldest month, with temperatures ranging between an average high of 53.6°F (12°C) and a low of 37.2°F (2.9°C).

What is the driest month in Slidell?

The month with the least rainfall in Slidell, Texas, is January, when the rain falls for 5.9 days and typically collects 1.1" (28mm) of precipitation.

How many days does it rain in Slidell?

Throughout the year, in Slidell, there are 130.2 rainfall days, and 25.31" (643mm) of precipitation is accumulated.

When does it snow in Slidell?

January through March, November and December are months with snowfall in Slidell.

How much does it snow in Slidell?

Throughout the year, in Slidell, there are 2.9 snowfall days, and 1.26" (32mm) of snow is accumulated.

What is the snowiest month in Slidell?

The month with the most snowfall in Slidell, Texas, is February, when snow falls for 1.4 days and typically aggregates up to 0.59" (15mm) of snow.

When is Daylight Saving Time (DST) in Slidell?

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.

When it does not snow in Slidell?

In Slidell, Texas, snow does not fall in April through October.

What is the most humid month in Slidell?

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

What is the wettest month in Slidell?

The month with the most rainfall in Slidell, Texas, is May, when the rain falls for 15.2 days and typically aggregates up to 2.99" (76mm) of precipitation.

When are the longest days in Slidell?

With an average of 14h and 18min of daylight, June has the longest days of the year in Slidell, Texas.

When is the highest UV index in Slidell?

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

What month has the most sunshine in Slidell?

With an average of 11.1h of sunshine, July has the most sunshine of the year in Slidell, Texas.

What is the hottest time of year in Slidell?

In Slidell, August is known for its average highest temperatures, reaching a high of 95.5°F (35.3°C) and a low of 74.8°F (23.8°C).

What is the least humid month in Slidell?

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

What is the month with the shortest days in Slidell?

The month with the shortest days in Slidell is December, with an average of 10h and 0min of daylight.

What is the month with the least sunshine in Slidell?

December has the least sunshine of the year in Slidell, Texas, with an average of 5.8h of sunshine.

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

With an average maximum UV index of 2, December is the month with the lowest UV index.

Average temperature
Slidell, TX

Average temperature - Slidell, TX

The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (53.6°F).

The month with the highest average low temperature is July (75°F).
The coldest month (with the lowest average low temperature) is January (37.2°F).

Average pressure
Slidell, TX

Average pressure - Slidell, TX

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed
Slidell, TX

Average wind speed - Slidell, TX

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is September (6.9mph).

Average rainfall
Slidell, TX

Average rainfall - Slidell, TX

The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is January (1.1").

Average rainfall days
Slidell, TX

Average rainfall days - Slidell, TX

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.9 days).

Average snowfall
Slidell, TX

Average snowfall - Slidell, TX

The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days
Slidell, TX

Average snowfall days - Slidell, TX

The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Slidell, TX

Average daylight / Average sunshine - Slidell, 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 48min).

Average sunshine days
Slidell, TX

Average sunshine days - Slidell, TX

The month with the most sunshine days is January (23.7 days).
The month with the least sunshine days is May (13.7 days).

Average visibility
Slidell, TX

Average visibility - Slidell, 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).

Slidell, Texas, USA

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