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

Observing a slight rise in June, the average high-temperature shifts from May's warm 83.8°F (28.8°C) to a tropical 90°F (32.2°C). June nights experience a consistent temperature drop to a moderately hot 75.4°F (24.1°C).

Heat index

For most parts of June, the heat index is calculated to be a scorching 107.6°F (42°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

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

Rainfall

In Slidell, in June, it is raining for 18.2 days, with typically 2.99" (76mm) of accumulated precipitation. 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, snow does not fall in February through December.

Daylight

The month with the longest days is June, 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

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 7 during June translates into the following directions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat.

Frequently asked questions

How hot is it in June?

The high-temperature, in June, in Slidell, is 90°F (32.2°C), while the low-temperature averages to 75.4°F (24.1°C). In June, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 107.6°F (42°C).

What is the average humidity in June?

The average relative humidity in June is 73%.

How many days does it rain in June?

In Slidell, during June, the rain falls for 18.2 days and regularly aggregates up to 2.99" (76mm) of precipitation.

When it does not snow in Slidell?

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

When are the longest days?

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

What is the average length of the day in June?

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

What time are sunrise and sunset in June?

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, sunrise is at 6:00 am and sunset at 8:05 pm CDT.

What month has the most sunshine?

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

How many hours of sunshine does Slidell have in June?

The average sunshine duration in June is 11.1h.

When is the highest UV index?

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

How high is the UV index in June?

In June, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe 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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Slidell, Louisiana, USA

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