July weather forecast
Fairfax, SC

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Weather in July

July, the same as June, in Fairfax, South Carolina, is another hot summer month, with temperature in the range of an average high of 91°F (32.8°C) and an average low of 73.2°F (22.9°C).

Temperature

July, with its average high-temperature of 91°F (32.8°C) and an average low-temperature of 73.2°F (22.9°C), holds the record as the warmest month.

Heat index

The heat index for July is computed to be a blazing hot 113°F (45°C). Be alert: Heat exhaustion along with heat cramps are probable. Heatstroke is a threat with sustained physical activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In July, the average relative humidity in Fairfax, South Carolina, is 74%.

Rainfall

In Fairfax, in July, during 20 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. Throughout the year, in Fairfax, there are 152.9 rainfall days, and 31.18" (792mm) of precipitation is accumulated.

Snowfall

In Fairfax, South Carolina, snow does not fall in March through December.

Daylight

The average length of the day in July in Fairfax is 14h and 5min.
On the first day of the month, sunrise is at 6:20 am and sunset at 8:37 pm. On the last day of July, in Fairfax, sunrise is at 6:38 am and sunset at 8:24 pm EDT.

Sunshine

July has the most sunshine of the year in Fairfax, with an average of 10.8h of sunshine.

UV index

The months with the highest UV index in Fairfax are June through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 7 during July translates into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What is the warmest month in Fairfax?

Temperature records in Fairfax mark July as the warmest month, with highs averaging 91°F (32.8°C) and lows at 73.2°F (22.9°C).

How hot does it get in Fairfax in July?

In July, the average high-temperature and low-temperature are 91°F (32.8°C) and 73.2°F (22.9°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in July is computed to be 113°F (45°C).

What is the average humidity in July in Fairfax?

The average relative humidity in July in Fairfax is 74%.

How much does it rain in Fairfax in July?

In Fairfax, South Carolina, in July, during 20 rainfall days, 3.03" (77mm) of precipitation is typically accumulated.

When it does not snow in Fairfax?

March through December are months without snowfall.

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

In July, the average day length is 14h and 5min.

What time are sunrise and sunset in July in Fairfax?

In July, on the first day of the month, sunrise is at 6:20 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 8:24 pm EDT.

What month has the most sunshine in Fairfax?

With an average of 10.8h of sunshine, July has the most sunshine of the year in Fairfax.

How many hours of sunshine does Fairfax have in July?

The average sunshine duration in July in Fairfax, South Carolina, is 10.8h.

When is the highest UV index in Fairfax?

The months with the highest UV index in Fairfax are June through August, with an average maximum UV index of 7.

What is the UV index intensity in July in Fairfax?

The average daily maximum UV index in July in Fairfax is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's 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
Fairfax, SC

Average temperature in July - Fairfax, SC
  • Average high temperature in July: 91°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (55.4°F).

  • Average low temperature in July: 73.2°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).

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Average pressure in July
Fairfax, SC

Average pressure in July - Fairfax, SC
  • Average pressure in July: 29.99"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in July
Fairfax, SC

Average wind speed in July - Fairfax, SC
  • Average wind speed in July: 5.8mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in July
Fairfax, SC

Average humidity in July - Fairfax, SC
  • Average humidity in July: 74%

The months with the highest relative humidity are August and December (76%).
The month with the lowest relative humidity is January (70%).

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Average rainfall in July
Fairfax, SC

Average rainfall in July - Fairfax, SC
  • Average rainfall in July: 3.03"

The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the least rainfall) is November (1.38").

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Average rainfall days in July
Fairfax, SC

Average rainfall days in July - Fairfax, SC
  • Average rainfall days in July: 20 days

The month with the highest number of rainy days is August (20.8 days).
The month with the least rainy days is November (6.6 days).

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Average snowfall in July
Fairfax, SC

Average snowfall in July - Fairfax, SC
  • Average snowfall in July: 0"

The month with the highest snowfall is February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in July
Fairfax, SC

Average snowfall days in July - Fairfax, SC
  • Average snowfall days in July: 0 days

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in July /
Average sunshine in July
Fairfax, SC

Average daylight in July / Average sunshine in July - Fairfax, SC
  • Average daylight in July: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in July: 10h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in July
Fairfax, SC

Average sunshine days in July - Fairfax, SC
  • Average sunshine days in July: 9 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is August (7.3 days).

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Average UV index in July
Fairfax, SC

Average UV index in July - Fairfax, SC
  • Average UV index in July: 7

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in July
Fairfax, SC

Average cloud cover in July - Fairfax, SC
  • Average cloud cover in July: 31

The months with the most cloud cover are February and December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 29).

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Average visibility in July
Fairfax, SC

Average visibility in July - Fairfax, SC
  • Average visibility in July: 6mi

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

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Fairfax, South Carolina, USA

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