August weather forecast
McNary, LA

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Weather in August

August, the last month of the summer in McNary, is another tropical month, with an average temperature varying between 91.9°F (33.3°C) and 73.2°F (22.9°C).

Temperature

As McNary transitions from July to August, the average high-temperatures adjust to a still tropical 91.9°F (33.3°C), nearly the same as the previous 92.1°F (33.4°C). In McNary, an average low-temperature of 73.2°F (22.9°C) is recorded during August nights.

Heat index

August's mean heat index is evaluated at a burning hot 118.4°F (48°C). Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In August, the average relative humidity is 77%.

Rainfall

August is the month with the most rainfall. Rain falls for 16.8 days and accumulates 3.74" (95mm) of precipitation.

Snowfall

In McNary, snow does not fall in March through November.

Daylight

The average length of the day in August is 13h and 14min.
On the first day of the month, sunrise is at 6:28 am and sunset at 8:05 pm. On the last day of August, sunrise is at 6:46 am and sunset at 7:34 pm CDT.

Sunshine

In August, the average sunshine is 9.8h.

UV index

In McNary, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in McNary in August?

McNary in August has an average high-temperature of 91.9°F (33.3°C) and an average low-temperature of 73.2°F (22.9°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in August is evaluated at 118.4°F (48°C).

What is the average humidity in August?

In August, the average relative humidity in McNary is 77%.

What is the rainiest month?

August is the month with the most rainfall in McNary. Rain falls for 16.8 days and accumulates 3.74" (95mm) of precipitation.

How many days does it rain in August?

In McNary, during August, the rain falls for 16.8 days and regularly aggregates up to 3.74" (95mm) of precipitation.

When it does not snow?

March through November are months without snowfall in McNary.

What is the average length of the day in August?

In McNary, the average day length in August is 13h and 14min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:28 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:34 pm CDT.

How many hours of sunshine does McNary have in August?

In August, the average sunshine duration is 9.8h.

How high is the UV index in August in McNary?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
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 August
McNary, LA

Average temperature in August - McNary, LA
  • Average high temperature in August: 91.9°F

The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (57°F).

  • Average low temperature in August: 73.2°F

The month with the highest average low temperature is August (73.2°F).
The coldest month (with the lowest average low temperature) is January (41°F).

Average pressure in August
McNary, LA

Average pressure in August - McNary, LA
  • Average pressure in August: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
McNary, LA

Average wind speed in August - McNary, LA
  • Average wind speed in August: 5.2mph

The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest month (with the lowest average wind speed) is July (5.1mph).

Average humidity in August
McNary, LA

Average humidity in August - McNary, LA
  • Average humidity in August: 77%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
McNary, LA

Average rainfall in August - McNary, LA
  • Average rainfall in August: 3.74"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is September (2.05").

Average rainfall days in August
McNary, LA

Average rainfall days in August - McNary, LA
  • Average rainfall days in August: 16.8 days

The month with the highest number of rainy days is August (16.8 days).
The month with the least rainy days is October (9.7 days).

Average snowfall in August
McNary, LA

Average snowfall in August - McNary, LA
  • Average snowfall in August: 0"

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

Average snowfall days in August
McNary, LA

Average snowfall days in August - McNary, LA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in August /
Average sunshine in August
McNary, LA

Average daylight in August / Average sunshine in August - McNary, LA
  • Average daylight in August: 13h 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 August: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in August
McNary, LA

Average sunshine days in August - McNary, LA
  • Average sunshine days in August: 12.3 days

The month with the most sunshine days is October (20 days).
The month with the least sunshine days is August (12.3 days).

Average UV index in August
McNary, LA

Average UV index in August - McNary, LA
  • Average UV index in August: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in August
McNary, LA

Average cloud cover in August - McNary, LA
  • Average cloud cover in August: 36

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is October (Cloud cover 30).

Average visibility in August
McNary, LA

Average visibility in August - McNary, LA
  • Average visibility in August: 5mi

The months with the highest visibility are January, February, March, October, November and December (6mi).
The months with the lowest visibility are April, May, June, July, August and September (5mi).

McNary, Louisiana, USA

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