July weather forecast
Johnsons Mill, TN

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Weather in July

July, like June, is a hot summer month in Johnsons Mill, Tennessee, with an average temperature ranging between max 87.6°F (30.9°C) and min 68°F (20°C).

Temperature

In Johnsons Mill, the month of July is known for its highest average temperatures, reaching a high of 87.6°F (30.9°C) and a low of 68°F (20°C).

Heat index

The heat index for July is evaluated at a scorching 104°F (40°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In July, the average relative humidity is 78%.

Rainfall

July is the month with the most rainfall. Rain falls for 20 days and accumulates 4.21" (107mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In July, the average length of the day is 14h and 18min.
On the first day of July, sunrise is at 5:36 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 7:53 pm CDT.

Sunshine

In July, the average sunshine is 10h.

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 health hazard from exposure to the Sun's UV rays for the average person.
Note: In July, a daily maximum UV index of 6 leads to the following instructions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest?

July is the month when Johnsons Mill experiences its warmest temperatures, averaging a high of 87.6°F (30.9°C) and a low of 68°F (20°C).

Is it hot during July?

The average high-temperature, in July, in Johnsons Mill, is 87.6°F (30.9°C), while the average low-temperature is 68°F (20°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in July is evaluated at 104°F (40°C).

What is the average humidity in July?

The average relative humidity in July is 78%.

What is the rainiest month?

July is the month with the most rainfall. Rain falls for 20 days and accumulates 4.21" (107mm) of precipitation.

How many days does it rain in July?

In Johnsons Mill, during July, the rain falls for 20 days and regularly aggregates up to 4.21" (107mm) of precipitation.

When it does not snow?

In Johnsons Mill, snow does not fall in May through September.

How many hours of daylight does Johnsons Mill have in July?

The average day length in July is 14h and 18min.

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:36 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 7:53 pm CDT.

How long on average sun shines in July?

In Johnsons Mill, the average sunshine duration in July is 10h.

What are the months with the highest UV index?

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

What is the UV index intensity in July?

In July, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average max. wind speed
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
Johnsons Mill, TN

Average temperature in July - Johnsons Mill, TN
  • Average high temperature in July: 87.6°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (45°F).

  • Average low temperature in July: 68°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

Average pressure in July
Johnsons Mill, TN

Average pressure in July - Johnsons Mill, TN
  • Average pressure in July: 30"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in July
Johnsons Mill, TN

Average wind speed in July - Johnsons Mill, TN
  • Average wind speed in July: 4.7mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in July
Johnsons Mill, TN

Average humidity in July - Johnsons Mill, TN
  • Average humidity in July: 78%

The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (74%).

Average rainfall in July
Johnsons Mill, TN

Average rainfall in July - Johnsons Mill, TN
  • Average rainfall in July: 4.21"

The wettest month (with the highest rainfall) is July (4.21").
The driest month (with the least rainfall) is September (2.44").

Average rainfall days in July
Johnsons Mill, TN

Average rainfall days in July - Johnsons Mill, TN
  • Average rainfall days in July: 20 days

The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (10.5 days).

Average snowfall in July
Johnsons Mill, TN

Average snowfall in July - Johnsons Mill, TN
  • Average snowfall in July: 0"

The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Johnsons Mill, TN

Average snowfall days in July - Johnsons Mill, TN
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (4 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
Johnsons Mill, TN

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in July: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).

Average sunshine days in July
Johnsons Mill, TN

Average sunshine days in July - Johnsons Mill, TN
  • Average sunshine days in July: 8.8 days

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (8.8 days).

Average UV index in July
Johnsons Mill, TN

Average UV index in July - Johnsons Mill, 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 and December (UV index 2).

Average cloud cover in July
Johnsons Mill, TN

Average cloud cover in July - Johnsons Mill, TN
  • Average cloud cover in July: 35

The months with the most cloud cover are February and December (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in July
Johnsons Mill, TN

Average visibility in July - Johnsons Mill, TN
  • Average visibility in July: 5mi

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

Johnsons Mill, Tennessee, USA

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