July weather forecast
Istrouma, LA

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Weather in July

July, the same as June, in Istrouma, Louisiana, is another hot summer month, with temperature in the range of an average low of 73.8°F (23.2°C) and an average high of 91.9°F (33.3°C).

Temperature

July and August are the warmest months, with an average high-temperature of 91.9°F (33.3°C).

Heat index

July's average heat index is calculated to be a life-threatening hot 118.4°F (48°C). Keep guard: Heat cramps and heat exhaustion are likely. Continued activity increases the risk of heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In Istrouma, the average relative humidity in July is 78%.

Rainfall

The month with the most rainfall is July, when the rain falls for 22.5 days and typically aggregates up to 4.72" (120mm) of precipitation.

Snowfall

February through November are months without snowfall.

Daylight

In July, the average length of the day is 13h and 53min.
On the first day of the month, sunrise is at 6:06 am and sunset at 8:11 pm. On the last day of July, sunrise is at 6:22 am and sunset at 7:59 pm CDT.

Sunshine

In Istrouma, the average sunshine in July is 10h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 in July transforms into the following instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months?

In Istrouma, July and August are characterised by the peak of temperatures, recording an average high of 91.9°F (33.3°C).

How hot does it get in July?

The high-temperature during July is 91.9°F (33.3°C) and the low-temperature is 73.8°F (23.2°C). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 118.4°F (48°C).

What is the average humidity in July?

In July, the average relative humidity is 78%.

What is the rainiest month?

July is the month with the most rainfall. Rain falls for 22.5 days and accumulates 4.72" (120mm) of precipitation.

How many days does it rain in July?

In Istrouma, in July, it is raining for 22.5 days, with typically 4.72" (120mm) of accumulated precipitation.

When it does not snow?

February through November are months without snowfall.

What is the average length of the day in July?

In Istrouma, the average day length in July is 13h and 53min.

When is the sunrise / sunset in July?

In July, on the first day of the month, sunrise is at 6:06 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:59 pm CDT.

How many hours of sunshine does Istrouma have in July?

In July, the average sunshine duration is 10h.

When is the highest UV index?

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

How high is the UV index in July?

In Istrouma, the average daily maximum UV index in July is 7. A UV Index estimate of 6 to 7 represents 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 July
Istrouma, LA

Average temperature in July - Istrouma, LA
  • Average high temperature in July: 91.9°F

The warmest months (with the highest average high temperature) are July and August (91.9°F).
The month with the lowest average high temperature is January (58.6°F).

  • Average low temperature in July: 73.8°F

The month with the highest average low temperature is August (73.9°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

Average pressure in July
Istrouma, LA

Average pressure in July - Istrouma, LA
  • Average pressure in July: 30"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).

Average wind speed in July
Istrouma, LA

Average wind speed in July - Istrouma, LA
  • Average wind speed in July: 4.4mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.4mph).

Average humidity in July
Istrouma, LA

Average humidity in July - Istrouma, LA
  • Average humidity in July: 78%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall in July
Istrouma, LA

Average rainfall in July - Istrouma, LA
  • Average rainfall in July: 4.72"

The wettest month (with the highest rainfall) is July (4.72").
The driest month (with the least rainfall) is November (1.77").

Average rainfall days in July
Istrouma, LA

Average rainfall days in July - Istrouma, LA
  • Average rainfall days in July: 22.5 days

The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in July
Istrouma, LA

Average snowfall in July - Istrouma, LA
  • Average snowfall in July: 0"

The month with the highest snowfall is January (0.28").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in July
Istrouma, LA

Average snowfall days in July - Istrouma, LA
  • Average snowfall days in July: 0 days

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

Average daylight in July /
Average sunshine in July
Istrouma, LA

Average daylight in July / Average sunshine in July - Istrouma, LA
  • Average daylight in July: 13h and 5min

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 July: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in July
Istrouma, LA

Average sunshine days in July - Istrouma, LA
  • Average sunshine days in July: 7.3 days

The month with the most sunshine days is November (19.6 days).
The months with the least sunshine days are July and August (7.3 days).

Average UV index in July
Istrouma, LA

Average UV index in July - Istrouma, LA
  • Average UV index in July: 7

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

Average cloud cover in July
Istrouma, LA

Average cloud cover in July - Istrouma, LA
  • Average cloud cover in July: 36

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in July
Istrouma, LA

Average visibility in July - Istrouma, LA
  • Average visibility in July: 5mi

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

Istrouma, Louisiana, USA

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