May weather forecast
Knoxville, GA

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Weather in May

May, the last month of the spring in Knoxville, is another warm month, with an average temperature fluctuating between 82.2°F (27.9°C) and 63.3°F (17.4°C).

Temperature

Knoxville experiences a minor temperature shift with the start of May, with average high-temperatures moving from 75.2°F (24°C) in April to a still warm 82.2°F (27.9°C). The average temperature in Knoxville during May nights dips to a refreshing 63.3°F (17.4°C).

Heat index

The heat index for May is appraised at a hot 87.8°F (31°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

In May, the average relative humidity is 72%.

Rainfall

In Knoxville, in May, it is raining for 11.9 days, with typically 1.06" (27mm) of accumulated precipitation. In Knoxville, during the entire year, the rain falls for 126.6 days and collects up to 13.46" (342mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

In May, the average length of the day is 13h and 51min.
On the first day of May, sunrise is at 6:48 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 8:38 pm EDT.

Sunshine

In Knoxville, the average sunshine in May is 10.2h.

UV index

In May, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the average maximum UV index of 6 translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

In May, in Knoxville, the average high-temperature is 82.2°F (27.9°C), and the average low-temperature is 63.3°F (17.4°C). In May, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is appraised at 87.8°F (31°C).

What is the average humidity in May?

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

How much does it rain in May?

In Knoxville, in May, it is raining for 11.9 days, with typically 1.06" (27mm) of accumulated precipitation.

When it does not snow?

In Knoxville, snow does not fall in January, March through December.

How many hours of daylight does Knoxville have in May?

In May, the average day length is 13h and 51min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 6:48 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 8:38 pm EDT.

How long on average sun shines in May?

In May, the average sunshine duration is 10.2h.

How high is the UV index in May?

In Knoxville, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to 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 May
Knoxville, GA

Average temperature in May - Knoxville, GA
  • Average high temperature in May: 82.2°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (55°F).

  • Average low temperature in May: 63.3°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

Average pressure in May
Knoxville, GA

Average pressure in May - Knoxville, GA
  • Average pressure in May: 30.02"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in May
Knoxville, GA

Average wind speed in May - Knoxville, GA
  • Average wind speed in May: 6.6mph

The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in May
Knoxville, GA

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

The month with the highest relative humidity is December (75%).
The months with the lowest relative humidity are January, October and November (70%).

Average rainfall in May
Knoxville, GA

Average rainfall in May - Knoxville, GA
  • Average rainfall in May: 1.06"

The wettest month (with the highest rainfall) is August (1.77").
The driest month (with the least rainfall) is September (0.71").

Average rainfall days in May
Knoxville, GA

Average rainfall days in May - Knoxville, GA
  • Average rainfall days in May: 11.9 days

The month with the highest number of rainy days is August (17.2 days).
The month with the least rainy days is November (5.5 days).

Average snowfall in May
Knoxville, GA

Average snowfall in May - Knoxville, GA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in May
Knoxville, GA

Average snowfall days in May - Knoxville, GA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October, November and December (0 days).

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

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

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 May: 10h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in May
Knoxville, GA

Average sunshine days in May - Knoxville, GA
  • Average sunshine days in May: 17.3 days

The month with the most sunshine days is October (23.3 days).
The month with the least sunshine days is August (10.6 days).

Average UV index in May
Knoxville, GA

Average UV index in May - Knoxville, GA
  • Average UV index in May: 6

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

Average cloud cover in May
Knoxville, GA

Average cloud cover in May - Knoxville, GA
  • Average cloud cover in May: 30

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 28).

Average visibility in May
Knoxville, GA

Average visibility in May - Knoxville, 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).

Knoxville, Georgia, USA

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