Chattanooga
Tennessee, USA
Long-term weather forecast
Long-term weather forecast

July weather forecast and climate
Chattanooga, TN

A stunning aerial panorama of the area of Chattanooga, Tennessee, a distant white skyline in the horizon and mountains
A stunning aerial panorama of the area of Chattanooga, Tennessee, a distant white skyline in the horizon and mountains
Julio, like Junio, is a hot summer month in Chattanooga, Tennessee, with average temperature varying between 69.6°F (20.9°C) and 90.1°F (32.3°C).

Temperature

Julio is the warmest month, with an average high-temperature of 90.1°F (32.3°C) and an average low-temperature of 69.6°F (20.9°C).

Heat index

In Julio, the average heat index is estimated at an extremely hot 109.9°F (43.3°C). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the 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', 'felt air temperature', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like metabolic differences, wind, clothing, and activity influence one's weather impression. 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 especially crucial for babies and toddlers. 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

In Julio, the average relative humidity in Chattanooga is 74.9%.

Rainfall

In Chattanooga, during Julio, the rain falls for 11.7 days and regularly aggregates up to 4.91" (124.7mm) of precipitation. Throughout the year, in Chattanooga, there are 119.6 rainfall days, and 52.48" (1332.9mm) of precipitation is accumulated.

Snowfall

Mayo through Noviembre are months without snowfall.

Daylight

In Chattanooga, the average length of the day is 14.2h.

Sunshine

In Julio, the average sunshine is 8.6h.

UV index

Junio and Julio, with an average maximum UV index of 10, are months with the highest UV index in Chattanooga. A UV Index of 8 to 10 symbolizes a very high health hazard from unsafe exposure to the UV radiation for the average person.
Note: The average daily UV index of 10 transform into the following instructions:
Take extra precautions. Protection against sun 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.

What is the warmest month in Chattanooga?

Julio is the warmest month in Chattanooga, Tennessee, with an average high-temperature of 90.1°F (32.3°C) and an average low-temperature of 69.6°F (20.9°C).

What is the temperature in Julio in Chattanooga?

In Chattanooga, in Julio, the average high-temperature is 90.1°F (32.3°C), and the average low-temperature is 69.6°F (20.9°C). In Julio, the average heat index (a.k.a. 'feels like', 'apparent temperature'), that combines relative humidity and air temperature, is estimated at 109.9°F (43.3°C).

What is the average humidity in Julio in Chattanooga?

In Chattanooga, Tennessee, the average relative humidity in Julio is 74.9%.

How many days does it rain in Julio in Chattanooga?

In Chattanooga, during Julio, the rain falls for 11.7 days and regularly aggregates up to 4.91" (124.7mm) of precipitation.

When it does not snow in Chattanooga?

In Chattanooga, Tennessee, snow does not fall in Mayo through Noviembre.

How many hours of daylight does Chattanooga have in Julio?

In Julio, the average length of the day in Chattanooga, Tennessee, is 14.2h.

How many hours of sunshine does Chattanooga have in Julio?

In Julio, the average sunshine in Chattanooga is 8.6h.

When is the highest UV index in Chattanooga?

Junio and Julio, with an average maximum UV index of 10, are months with the highest UV index in Chattanooga.

What is the UV index reading in Julio in Chattanooga?

The average daily maximum UV index in Julio is 10. A UV Index reading of 8 to 10 represents a very high hazard to health from unprotected exposure to the UV radiation.
Average temperature in July - Chattanooga, TN
  • Average high temperature in July: 90.2°F

The warmest month (with the highest average high temperature) is July (90.2°F).
The month with the lowest average high temperature is January (50.2°F).

  • Average low temperature in July: 69.7°F

The month with the highest average low temperature is July (69.7°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

Average humidity in July - Chattanooga, TN
  • Average humidity in July: 74.9%

The month with the highest relative humidity is September (77%).
The month with the lowest relative humidity is April (63.8%).

Average rainfall in July - Chattanooga, TN
  • Average rainfall in July: 4.9"

Wettest months (with the highest rainfall) are March and November (5").
The driest month (with the lowest rainfall) is October (3.3").

Average rainfall days in July - Chattanooga, TN
  • Average rainfall days in July: 11.7 days

The month with the highest number of rainy days is July (11.7 days).
The month with the lowest number of rainy days is October (7.7 days).

Average snowfall in July - Chattanooga, TN
  • Average snowfall in July: 0"

The month with the highest snowfall is January (1.7").
Months with the lowest snowfall are May, June, July, August, September, October and November (0").

Average snowfall days in July - Chattanooga, TN
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (1 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in July / Average sunshine in July - Chattanooga, TN
  • Average daylight in July: 14.2h

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).

  • Average sunshine in July: 8.6h

The month with most sunshine is June (Average sunshine: 9.2h).
The month with least sunshine is December (Average sunshine: 4.5h).

Average UV index in July - Chattanooga, TN
  • Average UV index in July: 10

Months with the highest UV index are June and July (UV index 10).
The month with the lowest UV index is December (UV index 2).