July weather forecast
Grimes, LA

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Weather in July

July, like June, is another hot summer month in Grimes, Louisiana, with temperature in the range of an average low of 73.4°F (23°C) and an average high of 91°F (32.8°C).

Temperature

Grimes's July weather, marked by an average high temperature of 91°F (32.8°C) and an average low temperature of 73.4°F (23°C), is the warmest in the year.

Heat index

July's average heat index is evaluated at a blazing hot 113°F (45°C). Prudent: Heat cramps and heat exhaustion are likely. Heatstroke becomes imminent with sustained exertion.
Understand that the heat index values take into account shaded locations and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The average relative humidity in July is 74%.

Rainfall

In Grimes, Louisiana, in July, during 16.7 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. In Grimes, during the entire year, the rain falls for 158.9 days and collects up to 37.28" (947mm) of precipitation.

Snowfall

April through December are months without snowfall.

Daylight

In Grimes, the average length of the day in July is 14h and 3min.
On the first day of the month, sunrise is at 6:00 am and sunset at 8:16 pm. On the last day of July, sunrise is at 6:18 am and sunset at 8:03 pm CDT.

Sunshine

In July, the average sunshine in Grimes is 10.5h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 7 during July leads to these instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months in Grimes?

Grimes witnesses the warmest weather in July, with temperatures averaging a high of 91°F (32.8°C) and a low of 73.4°F (23°C).

How hot does it get in July?

The high-temperature during July is 91°F (32.8°C) and the low-temperature is 73.4°F (23°C). In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 113°F (45°C).

What is the average humidity in July?

The average relative humidity in July is 74%.

How many days does it rain in July?

In Grimes, during July, the rain falls for 16.7 days and regularly aggregates up to 3.07" (78mm) of precipitation.

When it does not snow?

In Grimes, snow does not fall in April through December.

How many hours of daylight does Grimes have in July?

In Grimes, the average day length in July is 14h and 3min.

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 6:00 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 8:03 pm CDT.

How many hours of sunshine does Grimes have in July?

In July, the average sunshine duration is 10.5h.

What are the months with the highest UV index?

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

What is the UV index reading in July?

In July, the average daily maximum UV index is 7. A UV Index reading 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
Grimes, LA

Average temperature in July - Grimes, LA
  • Average high temperature in July: 91°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (53.1°F).

  • Average low temperature in July: 73.4°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).

Average pressure in July
Grimes, LA

Average pressure in July - Grimes, LA
  • Average pressure in July: 29.99"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in July
Grimes, LA

Average wind speed in July - Grimes, LA
  • Average wind speed in July: 5.6mph

The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in July
Grimes, LA

Average humidity in July - Grimes, LA
  • Average humidity in July: 74%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (67%).

Average rainfall in July
Grimes, LA

Average rainfall in July - Grimes, LA
  • Average rainfall in July: 3.07"

The wettest month (with the highest rainfall) is April (4.41").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in July
Grimes, LA

Average rainfall days in July - Grimes, LA
  • Average rainfall days in July: 16.7 days

The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is October (9.5 days).

Average snowfall in July
Grimes, LA

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

The months with the highest snowfall are January and February (0.16").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

Average snowfall days in July
Grimes, LA

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

The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in July / Average sunshine in July - Grimes, LA
  • Average daylight in July: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in July: 10h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in July
Grimes, LA

Average sunshine days in July - Grimes, LA
  • Average sunshine days in July: 12.2 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (12.2 days).

Average UV index in July
Grimes, LA

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

The months with the highest UV index are 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
Grimes, LA

Average cloud cover in July - Grimes, LA
  • Average cloud cover in July: 29

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 25).

Average visibility in July
Grimes, LA

Average visibility in July - Grimes, LA
  • Average visibility in July: 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).

Grimes, Louisiana, USA

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