July weather forecast and climate
Marathon, TX

Weather in July

July, like June, is a hot summer month in Marathon, Texas, with average temperature fluctuating between 69.4°F (20.8°C) and 87.4°F (30.8°C).

Temperature

In Marathon, the average high-temperature is practically the same as in June - a still hot 87.4°F (30.8°C). In Marathon, in July, the average low-temperature is 69.4°F (20.8°C).

Heat index

In July, the average heat index is computed to be a tropical 89.1°F (31.7°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, clothing, differences in body mass, height, and shape, and pregnancy affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Marathon, the average relative humidity in July is 47%.

Rainfall

In Marathon, during July, the rain falls for 15.1 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, in Marathon, there are 87.6 rainfall days, and 10.83" (275mm) of precipitation is accumulated.

Snowfall

In Marathon snow does not fall in April through September.

Daylight

In July, the average length of the day is 13.9h.

Sunshine

The average sunshine in July is 10.1h.

UV index

Months with the highest UV index in Marathon are May through July, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for ordinary individuals.
Note: In July, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in July in Marathon?

The average high-temperature, in July, in Marathon, Texas, is 87.4°F (30.8°C), while the average low-temperature is 69.4°F (20.8°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in July is computed to be 89.1°F (31.7°C).

What is the average humidity in July in Marathon?

In July, the average relative humidity in Marathon is 47%.

How many days does it rain in July in Marathon?

In Marathon, Texas, during July, the rain falls for 15.1 days and regularly aggregates up to 1.65" (42mm) of precipitation.

When it does not snow in Marathon?

In Marathon snow does not fall in April through September.

What is the average length of the day in July in Marathon?

In Marathon, the average length of the day in July is 13.9h.

How many hours of sunshine does Marathon have in July?

In Marathon, Texas, the average sunshine in July is 10.1h.

What are the months with the highest UV index in Marathon?

Months with the highest UV index in Marathon are May through July, with an average maximum UV index of 7.

How high is the UV index in July in Marathon?

The average daily maximum UV index in July in Marathon is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to the UV radiation.

Average temperature in July
Marathon, TX

Average temperature in July - Marathon, TX
  • Average high temperature in July: 87.4°F

The warmest month (with the highest average high temperature) is June (90°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in July: 69.4°F

Months with the highest average low temperature are July and August (69.4°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).

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Average pressure in July
Marathon, TX

Average pressure in July - Marathon, TX
  • Average pressure in July: 29.91"

The month with the highest atmospheric pressure is January (30.12").
Months with the lowest atmospheric pressure are May and June (29.84").

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Average wind speed in July
Marathon, TX

Average wind speed in July - Marathon, TX
  • Average wind speed in July: 8.5mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is September (7.6mph).

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Average humidity in July
Marathon, TX

Average humidity in July - Marathon, TX
  • Average humidity in July: 47%

The month with the highest relative humidity is September (56%).
The month with the lowest relative humidity is April (29%).

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Average rainfall in July
Marathon, TX

Average rainfall in July - Marathon, TX
  • Average rainfall in July: 1.65"

The wettest month (with the highest rainfall) is September (2.01").
The driest month (with the least rainfall) is February (0.2").

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Average rainfall days in July
Marathon, TX

Average rainfall days in July - Marathon, TX
  • Average rainfall days in July: 15.1 days

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is February (2.2 days).

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Average snowfall in July
Marathon, TX

Average snowfall in July - Marathon, TX
  • Average snowfall in July: 0"

The month with the highest snowfall is January (0.67").
Months with the least snowfall are April, May, June, July, August and September (0").

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Average snowfall days in July
Marathon, TX

Average snowfall days in July - Marathon, TX
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is December (1.6 days).
Months with the least snowfall days are April, May, June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Marathon, TX

Average daylight in July / Average sunshine in July - Marathon, TX
  • Average daylight in July: 13.9h

The month with the longest days is June (Average daylight: 14.1h).
The month with the shortest days is December (Average daylight: 10.2h).

  • Average sunshine in July: 10.1h

The month with the most sunshine is June (Average sunshine: 11.9h).
The month with the least sunshine is December (Average sunshine: 7.7h).

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Average sunshine days in July
Marathon, TX

Average sunshine days in July - Marathon, TX
  • Average sunshine days in July: 11.7 days

The month with the most sunshine days is January (26.8 days).
The month with the least sunshine days is July (11.7 days).

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Average UV index in July
Marathon, TX

Average UV index in July - Marathon, TX
  • Average UV index in July: 7

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

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Average cloud cover in July
Marathon, TX

Average cloud cover in July - Marathon, TX
  • Average cloud cover in July: 18

The month with the most cloud cover is September (Cloud cover 22).
The month with the least cloud cover is June (Cloud cover 12).

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Average visibility in July
Marathon, TX

Average visibility in July - Marathon, TX
  • Average visibility in July: 6mi

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

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