May weather forecast
Fairfax, GA

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Weather in May

May, the last month of the spring in Fairfax, is also a moderately hot month, with an average temperature fluctuating between 84.2°F (29°C) and 65.1°F (18.4°C).

Temperature

May comes with a subtle rise, with the average high-temperature adjusting from a warm 78.4°F (25.8°C) in April to a still moderately hot 84.2°F (29°C). Nighttime temperatures consistently average an enjoyable 65.1°F (18.4°C) during May.

Heat index

May's average heat index is evaluated at a tropical 91.4°F (33°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

In Fairfax, the average relative humidity in May is 72%.

Rainfall

In Fairfax, in May, it is raining for 12.3 days, with typically 1.26" (32mm) of accumulated precipitation. In Fairfax, during the entire year, the rain falls for 139 days and collects up to 15.12" (384mm) of precipitation.

Daylight

The average length of the day in May is 13h and 45min.
On the first day of May, sunrise is at 6:44 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 8:29 pm EDT.

Sunshine

In May, the average sunshine is 10.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 7 during May translates into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during May?

In Fairfax, in May, the average high-temperature is 84.2°F (29°C), and the average low-temperature is 65.1°F (18.4°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in May is evaluated at 91.4°F (33°C).

What is the average humidity in May?

The average relative humidity in May is 72%.

How many days does it rain in May?

In Fairfax, in May, it is raining for 12.3 days, with typically 1.26" (32mm) of accumulated precipitation.

What is the average length of the day in May?

In Fairfax, the average day length in May is 13h and 45min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:44 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 8:29 pm EDT.

How long on average sun shines in May?

In May, the average sunshine duration is 10.3h.

What are the months with the highest UV index?

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

What is the UV index intensity in May?

In May, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Fairfax, GA

Average temperature in May - Fairfax, GA
  • Average high temperature in May: 84.2°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (59.5°F).

  • Average low temperature in May: 65.1°F

The month with the highest average low temperature is August (74.1°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

Average pressure in May
Fairfax, GA

Average pressure in May - Fairfax, GA
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).

Average wind speed in May
Fairfax, GA

Average wind speed in May - Fairfax, GA
  • Average wind speed in May: 5.8mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in May
Fairfax, GA

Average humidity in May - Fairfax, GA
  • Average humidity in May: 72%

The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is January (71%).

Average rainfall in May
Fairfax, GA

Average rainfall in May - Fairfax, GA
  • Average rainfall in May: 1.26"

The wettest month (with the highest rainfall) is August (2.4").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in May
Fairfax, GA

Average rainfall days in May - Fairfax, GA
  • Average rainfall days in May: 12.3 days

The month with the highest number of rainy days is August (18.7 days).
The month with the least rainy days is November (6.2 days).

Average daylight in May /
Average sunshine in May
Fairfax, GA

Average daylight in May / Average sunshine in May - Fairfax, GA
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in May: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days in May
Fairfax, GA

Average sunshine days in May - Fairfax, GA
  • Average sunshine days in May: 16.1 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is August (7.8 days).

Average UV index in May
Fairfax, GA

Average UV index in May - Fairfax, GA
  • Average UV index in May: 7

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

Average cloud cover in May
Fairfax, GA

Average cloud cover in May - Fairfax, GA
  • Average cloud cover in May: 32

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 30).

Average visibility in May
Fairfax, GA

Average visibility in May - Fairfax, GA
  • Average visibility in May: 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, Georgia, USA

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