June weather forecast
Fairfax, SC

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Weather in June

June, the first month of the summer in Fairfax, is a tropical month, with an average temperature ranging between min 71.1°F (21.7°C) and max 88.3°F (31.3°C).

Temperature

June's arrival brings a slight change in high-temperatures, adjusting from a moderately hot 81.7°F (27.6°C) in May to a hot 88.3°F (31.3°C). An average low-temperature of 71.1°F (21.7°C) is noted during the month of June.

Heat index

June's mean heat index is evaluated at a scorching 104°F (40°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
When assessing, remember that heat index measurements are for light winds and shaded spots. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep 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. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in June is 75%.

Rainfall

In Fairfax, during June, the rain falls for 16.7 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Fairfax, during the entire year, the rain falls for 152.9 days and collects up to 31.18" (792mm) of precipitation.

Snowfall

March through December are months without snowfall.

Daylight

June has the longest days of the year in Fairfax, with an average of 14h and 18min of daylight.
On the first day of June, sunrise is at 6:17 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 8:37 pm EDT.

Sunshine

The average sunshine in June is 10.5h.

UV index

The months with the highest UV index in Fairfax, South Carolina, are June through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 7 in June interprets into the following advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in June?

The high-temperature, in June, in Fairfax, is 88.3°F (31.3°C), while the low-temperature averages to 71.1°F (21.7°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, in June is evaluated at 104°F (40°C).

What is the average humidity in June?

The average relative humidity in June is 75%.

How much does it rain in June?

In June, the rain falls for 16.7 days. Throughout June, 2.76" (70mm) of precipitation is accumulated.

When it does not snow in Fairfax?

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

When are the longest days?

The month with the longest days is June, with an average of 14h and 18min of daylight.

How many hours of daylight does Fairfax have in June?

The average day length in June is 14h and 17min.

When is the sunrise / sunset in June?

On the first day of June, sunrise is at 6:17 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 8:37 pm EDT.

How many hours of sunshine does Fairfax have in June?

In Fairfax, the average sunshine duration in June is 10.5h.

What are the months with the highest UV index?

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

What is the UV index intensity in June?

The average daily maximum UV index in June is 7. A UV Index of 6 to 7 symbolizes 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 June
Fairfax, SC

Average temperature in June - Fairfax, SC
  • Average high temperature in June: 88.3°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 June: 71.1°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).

Average pressure in June
Fairfax, SC

Average pressure in June - Fairfax, SC
  • Average pressure in June: 29.97"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).

Average wind speed in June
Fairfax, SC

Average wind speed in June - Fairfax, SC
  • Average wind speed in June: 6mph

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).

Average humidity in June
Fairfax, SC

Average humidity in June - Fairfax, SC
  • Average humidity in June: 75%

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

Average rainfall in June
Fairfax, SC

Average rainfall in June - Fairfax, SC
  • Average rainfall in June: 2.76"

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

Average rainfall days in June
Fairfax, SC

Average rainfall days in June - Fairfax, SC
  • Average rainfall days in June: 16.7 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).

Average snowfall in June
Fairfax, SC

Average snowfall in June - Fairfax, SC
  • Average snowfall in June: 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").

Average snowfall days in June
Fairfax, SC

Average snowfall days in June - Fairfax, SC
  • Average snowfall days in June: 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).

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

Average daylight in June / Average sunshine in June - Fairfax, SC
  • Average daylight in June: 14h and 2min

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 June: 10h and 3min

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).

Average sunshine days in June
Fairfax, SC

Average sunshine days in June - Fairfax, SC
  • Average sunshine days in June: 10.8 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).

Average UV index in June
Fairfax, SC

Average UV index in June - Fairfax, SC
  • Average UV index in June: 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).

Average cloud cover in June
Fairfax, SC

Average cloud cover in June - Fairfax, SC
  • Average cloud cover in June: 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).

Average visibility in June
Fairfax, SC

Average visibility in June - Fairfax, SC
  • Average visibility in June: 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).

Fairfax, South Carolina, USA

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