July weather forecast
Cardiff, TN

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Weather in July

July in Cardiff, Tennessee, is a hot summer month, with an average temperature ranging between min 64.9°F (18.3°C) and max 86.4°F (30.2°C).

Temperature

With its high average temperature of 86.4°F (30.2°C) and a low of 64.9°F (18.3°C), July is regarded as the warmest month.

Heat index

During July, the heat index is appraised at a very hot 98.6°F (37°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The average relative humidity in July in Cardiff is 77%.

Rainfall

July is the month with the most rainfall in Cardiff. Rain falls for 19.4 days and accumulates 4.29" (109mm) of precipitation.

Snowfall

May through October are months without snowfall in Cardiff.

Daylight

The average length of the day in July in Cardiff is 14h and 19min.
On the first day of July, sunrise is at 6:26 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 8:43 pm EDT.

Sunshine

The average sunshine in July in Cardiff is 10.2h.

UV index

The months with the highest UV index in Cardiff are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In July, the average maximum UV index of 6 translates into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
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Frequently asked questions

What are the warmest months in Cardiff?

The warmest temperatures occur during July, when averages reach a peak of 86.4°F (30.2°C) and a low of 64.9°F (18.3°C).

How hot is July in Cardiff?

The high-temperature in Cardiff, Tennessee, during July is 86.4°F (30.2°C) and the low-temperature is 64.9°F (18.3°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 98.6°F (37°C).

What is the average humidity in July in Cardiff?

The average relative humidity in July in Cardiff, Tennessee, is 77%.

What is the wettest month in Cardiff?

The month with the most rainfall in Cardiff is July, when the rain falls for 19.4 days and typically aggregates up to 4.29" (109mm) of precipitation.

How much does it rain in Cardiff in July?

In Cardiff, Tennessee, in July, it is raining for 19.4 days, with typically 4.29" (109mm) of accumulated precipitation.

When it does not snow in Cardiff?

In Cardiff, Tennessee, snow does not fall in May through October.

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

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

What time are sunrise and sunset in July in Cardiff?

On the first day of July in Cardiff, sunrise is at 6:26 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 8:43 pm EDT.

How many hours of sunshine does Cardiff have in July?

The average sunshine duration in July in Cardiff, Tennessee, is 10.2h.

When is the highest UV index in Cardiff?

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

How high is the UV index in July in Cardiff?

In July, the average daily maximum UV index in Cardiff is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
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
Cardiff, TN

Average temperature in July - Cardiff, TN
  • Average high temperature in July: 86.4°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (43.7°F).

  • Average low temperature in July: 64.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).

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Average pressure in July
Cardiff, TN

Average pressure in July - Cardiff, 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).

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Average wind speed in July
Cardiff, TN

Average wind speed in July - Cardiff, TN
  • Average wind speed in July: 3.9mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

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Average humidity in July
Cardiff, TN

Average humidity in July - Cardiff, TN
  • Average humidity in July: 77%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is November (76%).

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Average rainfall in July
Cardiff, TN

Average rainfall in July - Cardiff, TN
  • Average rainfall in July: 4.29"

The wettest month (with the highest rainfall) is July (4.29").
The driest month (with the least rainfall) is September (2.32").

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Average rainfall days in July
Cardiff, TN

Average rainfall days in July - Cardiff, TN
  • Average rainfall days in July: 19.4 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (10.7 days).

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Average snowfall in July
Cardiff, TN

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

The month with the highest snowfall is February (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Cardiff, TN

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

The months with the highest number of snowfall days are January and February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in July / Average sunshine in July - Cardiff, 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 4h and 54min).

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Average sunshine days in July
Cardiff, TN

Average sunshine days in July - Cardiff, TN
  • Average sunshine days in July: 9.4 days

The months with the most sunshine days are October and November (18.5 days).
The month with the least sunshine days is July (9.4 days).

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Average UV index in July
Cardiff, TN

Average UV index in July - Cardiff, 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).

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Average cloud cover in July
Cardiff, TN

Average cloud cover in July - Cardiff, TN
  • Average cloud cover in July: 33

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 31).

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Average visibility in July
Cardiff, TN

Average visibility in July - Cardiff, TN
  • Average visibility in July: 5mi

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

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Cardiff, Tennessee, USA

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