June weather forecast
Slidell, LA

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Weather in June

June represents the official commencement of summer in Slidell, Louisiana, with temperature averages soaring up to a high of 90°F (32.2°C) while humidity remains steady at 73%. An escalated level of sunlight with 14.1 daylight hours adds to warmer climate conditions. Although June witnesses the maximum number of daylight hours for the year, it isn't devoid of rainfall. Perhaps it's the contrast between sunny daytimes and cozy rainy evenings that define the uniqueness of June's weather.

Temperature

June signals a minor shift in the average high-temperature, moving from May's warm 83.8°F (28.8°C) to a tropical 90°F (32.2°C). The nights of June anticipate an average low-temperature of 75.4°F (24.1°C).

Heat index

The heat index value during June is calculated to be an extremely hot 107.6°F (42°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The average relative humidity in June in Slidell is 73%.

Rainfall

In Slidell, during June, the rain falls for 18.2 days and regularly aggregates up to 2.99" (76mm) of precipitation. Throughout the year, there are 173.3 rainfall days, and 30.79" (782mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

June has the longest days of the year, with an average of 14h and 6min of daylight.
On the first day of the month, sunrise is at 5:57 am and sunset at 7:56 pm. On the last day of June, sunrise is at 6:00 am and sunset at 8:05 pm CDT.

Sunshine

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

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: A daily maximum UV index of 7 in June translates into the following instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

How hot does it get in Slidell in June?

During June, Slidell experiences an average high-temperature of 90°F (32.2°C) and a low-temperature of 75.4°F (24.1°C). In June, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is calculated to be 107.6°F (42°C).

What is the average humidity in June in Slidell?

In Slidell, the average relative humidity in June is 73%.

How much does it rain in Slidell in June?

In Slidell, Louisiana, in June, during 18.2 rainfall days, 2.99" (76mm) of precipitation is typically accumulated.

When it does not snow in Slidell?

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

When are the longest days in Slidell?

With an average of 14h and 6min of daylight, June has the longest days of the year.

How many hours of daylight does Slidell have in June?

In June, the average day length in Slidell is 14h and 4min.

When are sunrise and sunset in June in Slidell?

In June, on the first day of the month, sunrise is at 5:57 am and sunset at 7:56 pm. On the last day of the month, in Slidell, Louisiana, sunrise is at 6:00 am and sunset at 8:05 pm CDT.

What month has the most sunshine in Slidell?

The month with the most sunshine in Slidell is June, with an average of 11.1h of sunshine.

How long on average sun shines in June in Slidell?

In June, the average sunshine duration in Slidell, Louisiana, is 11.1h.

When is the highest UV index in Slidell?

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

How high is the UV index in June in Slidell?

The average daily maximum UV index in June is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Slidell, LA

Average temperature in June - Slidell, LA
  • Average high temperature in June: 90°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 June: 75.4°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 June
Slidell, LA

Average pressure in June - Slidell, LA
  • Average pressure in June: 29.97"Hg

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

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Average wind speed in June
Slidell, LA

Average wind speed in June - Slidell, LA
  • Average wind speed in June: 5.9mph

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 June
Slidell, LA

Average humidity in June - Slidell, LA
  • Average humidity in June: 73%

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 June
Slidell, LA

Average rainfall in June - Slidell, LA
  • Average rainfall in June: 2.99"

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 June
Slidell, LA

Average rainfall days in June - Slidell, LA
  • Average rainfall days in June: 18.2 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 June
Slidell, LA

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

The month with the highest snowfall is January (0.2").
The 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 June
Slidell, LA

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

The month with the highest number of snowfall days is January (0.3 days).
The 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 June /
Average sunshine in June
Slidell, LA

Average daylight in June / Average sunshine in June - Slidell, LA
  • Average daylight in June: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in June: 11h and 1min

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

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Average sunshine days in June
Slidell, LA

Average sunshine days in June - Slidell, LA
  • Average sunshine days in June: 9.2 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 June
Slidell, LA

Average UV index in June - Slidell, LA
  • Average UV index in June: 7

The 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 June
Slidell, LA

Average cloud cover in June - Slidell, LA
  • Average cloud cover in June: 26

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 June
Slidell, LA

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

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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Slidell, Louisiana, USA

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