July weather forecast
Grayson, LA

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Weather in July

July, like June, is a hot summer month in Grayson, Louisiana, with an average temperature fluctuating between 93.7°F (34.3°C) and 72.9°F (22.7°C).

Temperature

Grayson, Louisiana, registers the highest average temperatures during the month of July, with peaks of 93.7°F (34.3°C) and lows of 72.9°F (22.7°C).

Heat index

In July, the heat index is estimated at a blazing hot 122°F (50°C). Forewarned: Heat cramps and heat exhaustion are anticipated. Ongoing physical activity increases the likelihood of heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In Grayson, the average relative humidity in July is 74%.

Rainfall

In July, in Grayson, the rain falls for 18.1 days. Throughout July, 3.7" (94mm) of precipitation is accumulated. Throughout the year, there are 172.1 rainfall days, and 39.45" (1002mm) of precipitation is accumulated.

Snowfall

In Grayson, snow does not fall in April through November.

Daylight

In Grayson, Louisiana, the average length of the day in July is 14h and 1min.
On the first day of the month, sunrise is at 6:06 am and sunset at 8:18 pm. On the last day of July, in Grayson, sunrise is at 6:23 am and sunset at 8:06 pm CDT.

Sunshine

The months with the most sunshine are June and July, with an average of 10.2h of sunshine.

UV index

June 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 exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 7 during July morphs into the following directions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

What month is the hottest in Grayson?

In Grayson, July registers the highest temperatures, averaging 93.7°F (34.3°C) at the peak and 72.9°F (22.7°C) at the lowest.

How hot is it in Grayson in July?

The high-temperature, in July, in Grayson, is 93.7°F (34.3°C), while the low-temperature averages to 72.9°F (22.7°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 122°F (50°C).

What is the average humidity in July in Grayson?

In July, the average relative humidity in Grayson is 74%.

How many days does it rain in July in Grayson?

In Grayson, Louisiana, in July, during 18.1 rainfall days, 3.7" (94mm) of precipitation is typically accumulated.

When it does not snow in Grayson?

April through November are months without snowfall in Grayson, Louisiana.

How many hours of daylight does Grayson have in July?

In July, the average day length in Grayson is 14h and 1min.

What time are sunrise and sunset in July in Grayson?

In July, on the first day of the month, sunrise is at 6:06 am and sunset at 8:18 pm. On the last day of the month, in Grayson, sunrise is at 6:23 am and sunset at 8:06 pm CDT.

What are the months with the most sunshine in Grayson?

The months with the most sunshine are June and July, with an average of 10.2h of sunshine.

How long on average sun shines in July in Grayson?

In July, the average sunshine duration in Grayson, Louisiana, is 10.2h.

What is the month with the highest UV index in Grayson?

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

What is the UV index reading in July in Grayson?

In July, the average daily maximum UV index in Grayson is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's 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
Grayson, LA

Average temperature in July - Grayson, LA
  • Average high temperature in July: 93.7°F

The warmest month (with the highest average high temperature) is July (93.7°F).
The month with the lowest average high temperature is January (54.9°F).

  • Average low temperature in July: 72.9°F

The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (39.6°F).

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Average pressure in July
Grayson, LA

Average pressure in July - Grayson, LA
  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in July
Grayson, LA

Average wind speed in July - Grayson, LA
  • Average wind speed in July: 4.8mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).

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Average humidity in July
Grayson, LA

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

The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in July
Grayson, LA

Average rainfall in July - Grayson, LA
  • Average rainfall in July: 3.7"

The wettest month (with the highest rainfall) is April (3.9").
The driest month (with the least rainfall) is November (2.4").

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Average rainfall days in July
Grayson, LA

Average rainfall days in July - Grayson, LA
  • Average rainfall days in July: 18.1 days

The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is November (9.9 days).

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Average snowfall in July
Grayson, LA

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

The months with the highest snowfall are January and February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in July
Grayson, LA

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

The month with the highest number of snowfall days is January (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in July / Average sunshine in July - Grayson, LA
  • Average daylight in July: 14h and 0min

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

  • Average sunshine in July: 10h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

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Average sunshine days in July
Grayson, LA

Average sunshine days in July - Grayson, LA
  • Average sunshine days in July: 9.9 days

The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is August (9.8 days).

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Average UV index in July
Grayson, LA

Average UV index in July - Grayson, 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).

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Average cloud cover in July
Grayson, LA

Average cloud cover in July - Grayson, LA
  • Average cloud cover in July: 33

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 29).

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Average visibility in July
Grayson, LA

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

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

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Grayson, Louisiana, USA

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