April weather forecast and climate
Slidell, LA

Weather in April

April is a warm spring month in Slidell, Louisiana, with temperature in the range of an average low of 61.7°F (16.5°C) and an average high of 77.4°F (25.2°C).

Temperature

In April, the average high-temperature marginally rises, from a pleasant 70.7°F (21.5°C) in March, to a moderately hot 77.4°F (25.2°C). The average low-temperature, in April, is 61.7°F (16.5°C).

Humidity

In Slidell, the average relative humidity in April is 74%.

Rainfall

In April, the rain falls for 11 days. Throughout April, 1.77" (45mm) of precipitation is accumulated. In Slidell, during the entire year, the rain falls for 173.3 days and collects up to 30.79" (782mm) of precipitation.

Snowfall

In Slidell, Louisiana, snow does not fall in February through December.

Daylight

The average length of the day is 12.9h.

Sunshine

In Slidell, Louisiana, the average sunshine is 9.9h.

UV index

The average daily maximum UV index in April is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 in April interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in April in Slidell?

The average high-temperature, in April, is 77.4°F (25.2°C), while the average low-temperature is 61.7°F (16.5°C).

What is the average humidity in April in Slidell?

In Slidell, Louisiana, the average relative humidity in April is 74%.

How many days does it rain in April in Slidell?

In Slidell, Louisiana, during April, the rain falls for 11 days and regularly aggregates up to 1.77" (45mm) of precipitation.

When it does not snow in Slidell?

In Slidell snow does not fall in February through December.

What is the average length of the day in April in Slidell?

The average length of the day in April in Slidell, Louisiana, is 12.9h.

How long on average sun shines in April in Slidell?

In Slidell, Louisiana, the average sunshine in April is 9.9h.

What is the UV index reading in April in Slidell?

In Slidell, Louisiana, the average daily maximum UV index in April is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to the UV radiation.

Average temperature in April
Slidell, LA

Average temperature in April - Slidell, LA
  • Average high temperature in April: 77.4°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (59.4°F).

  • Average low temperature in April: 61.7°F

The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is January (45.1°F).

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Average pressure in April
Slidell, LA

Average pressure in April - Slidell, LA
  • Average pressure in April: 30"

The month with the highest atmospheric pressure is January (30.17").
Months with the lowest atmospheric pressure are June and August (29.97").

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Average wind speed in April
Slidell, LA

Average wind speed in April - Slidell, LA
  • Average wind speed in April: 8mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is July (5.4mph).

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Average humidity in April
Slidell, LA

Average humidity in April - Slidell, LA
  • Average humidity in April: 74%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in April
Slidell, LA

Average rainfall in April - Slidell, LA
  • Average rainfall in April: 1.77"

The wettest month (with the highest rainfall) is August (4.92").
The driest month (with the least rainfall) is November (1.5").

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Average rainfall days in April
Slidell, LA

Average rainfall days in April - Slidell, LA
  • Average rainfall days in April: 11 days

The month with the highest number of rainy days is August (23.5 days).
The month with the least rainy days is November (8 days).

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Average snowfall in April
Slidell, LA

Average snowfall in April - Slidell, LA
  • Average snowfall in April: 0"

The month with the highest snowfall is January (0.2").
Months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in April
Slidell, LA

Average snowfall days in April - Slidell, LA
  • Average snowfall days in April: 0 days

The month with the highest number of snowfall days is January (0.3 days).
Months with the least snowfall days are February, March, April, May, June, July, August, October and November (0 days).

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Average daylight in April /
Average sunshine in April
Slidell, LA

Average daylight in April / Average sunshine in April - Slidell, LA
  • Average daylight in April: 12.9h

The month with the longest days is June (Average daylight: 14.1h).
The month with the shortest days is December (Average daylight: 10.2h).

  • Average sunshine in April: 9.9h

The month with the most sunshine is June (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 5.1h).

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Average sunshine days in April
Slidell, LA

Average sunshine days in April - Slidell, LA
  • Average sunshine days in April: 16 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (5.1 days).

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Average UV index in April
Slidell, LA

Average UV index in April - Slidell, LA
  • Average UV index in April: 6

Months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in April
Slidell, LA

Average cloud cover in April - Slidell, LA
  • Average cloud cover in April: 32

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 24).

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Average visibility in April
Slidell, LA

Average visibility in April - Slidell, LA
  • Average visibility in April: 6mi

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

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