July weather forecast
Westlyn, TN

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Weather in July

July is a tropical summer month in Westlyn, Tennessee, with temperature in the range of an average low of 66°F (18.9°C) and an average high of 87.8°F (31°C).

Temperature

Westlyn's warmest month, July, registers temperatures that range from a high of 87.8°F (31°C) to a low of 66°F (18.9°C).

Heat index

The average heat index in July is estimated at a torrid 102.2°F (39°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In July, the average relative humidity is 73%.

Rainfall

In July, the rain falls for 18.6 days. Throughout July, 3.58" (91mm) of precipitation is accumulated. Throughout the year, there are 177.6 rainfall days, and 37.91" (963mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In July, the average length of the day is 14h and 19min.
On the first day of July, sunrise is at 6:23 am and sunset at 8:56 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 8:41 pm EDT.

Sunshine

In Westlyn, the average sunshine in July is 10.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In July, an average UV index of 6 transforms into the following instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months?

July is the month that records the highest temperatures, with averages ranging from a high of 87.8°F (31°C) to a low of 66°F (18.9°C).

How hot is July?

The high-temperature, in July, in Westlyn, is 87.8°F (31°C), while the low-temperature averages to 66°F (18.9°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 102.2°F (39°C).

What is the average humidity in July in Westlyn?

In July, the average relative humidity is 73%.

How many days does it rain in July?

In Westlyn, during July, the rain falls for 18.6 days and regularly aggregates up to 3.58" (91mm) of precipitation.

When it does not snow?

In Westlyn, snow does not fall in May through September.

How many hours of daylight does Westlyn have in July?

In July, the average day length is 14h and 19min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 6:23 am and sunset at 8:56 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 8:41 pm EDT.

How long on average sun shines in July?

In July, the average sunshine duration in Westlyn is 10.4h.

When is the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

What is the UV index intensity in July in Westlyn?

In July, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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
Westlyn, TN

Average temperature in July - Westlyn, TN
  • Average high temperature in July: 87.8°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in July: 66°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

Average pressure in July
Westlyn, TN

Average pressure in July - Westlyn, TN
  • Average pressure in July: 30.01"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in July
Westlyn, TN

Average wind speed in July - Westlyn, TN
  • Average wind speed in July: 3.8mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in July
Westlyn, TN

Average humidity in July - Westlyn, TN
  • Average humidity in July: 73%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).

Average rainfall in July
Westlyn, TN

Average rainfall in July - Westlyn, TN
  • Average rainfall in July: 3.58"

The wettest month (with the highest rainfall) is February (4.33").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in July
Westlyn, TN

Average rainfall days in July - Westlyn, TN
  • Average rainfall days in July: 18.6 days

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (10.3 days).

Average snowfall in July
Westlyn, TN

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

The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Westlyn, TN

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

The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Westlyn, TN

Average daylight in July / Average sunshine in July - Westlyn, TN
  • Average daylight in July: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in July: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in July
Westlyn, TN

Average sunshine days in July - Westlyn, TN
  • Average sunshine days in July: 10.3 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in July
Westlyn, TN

Average UV index in July - Westlyn, TN
  • Average UV index in July: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in July
Westlyn, TN

Average cloud cover in July - Westlyn, TN
  • Average cloud cover in July: 31

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in July
Westlyn, TN

Average visibility in July - Westlyn, TN
  • Average visibility in July: 6mi

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

Westlyn, Tennessee, USA

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