May weather forecast
Sun Valley, TN

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Weather in May

May, the last month of the spring in Sun Valley, is a warm month, with an average temperature varying between 76.6°F (24.8°C) and 56.3°F (13.5°C).

Temperature

The onset of May marks a slight increase in the average high-temperature, moving from an agreeable 68.4°F (20.2°C) in April to a warm 76.6°F (24.8°C). An average low-temperature of 56.3°F (13.5°C) marks the nights throughout May.

Humidity

In May, the average relative humidity is 78%.

Rainfall

In Sun Valley, during May, the rain falls for 16.9 days and regularly aggregates up to 3.35" (85mm) of precipitation. In Sun Valley, during the entire year, the rain falls for 173.9 days and collects up to 38.31" (973mm) of precipitation.

Snowfall

In Sun Valley, snow does not fall in May through October.

Daylight

The average length of the day in May is 14h and 6min.
On the first day of May, sunrise is at 5:48 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 7:53 pm CDT.

Sunshine

In May, the average sunshine is 9.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 6 in May translates into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Jun 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

In Sun Valley, 76.6°F (24.8°C) is the average high-temperature and 56.3°F (13.5°C) is the average low-temperature during May.

What is the average humidity in May?

In Sun Valley, the average relative humidity in May is 78%.

How much does it rain in May?

In May, the rain falls for 16.9 days. Throughout May, 3.35" (85mm) of precipitation is accumulated.

When it does not snow?

In Sun Valley, snow does not fall in May through October.

Does it snow in May?

In May, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Sun Valley have in May?

In Sun Valley, the average day length in May is 14h and 6min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 5:48 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 7:53 pm CDT.

How long on average sun shines in May?

In May, the average sunshine duration is 9.5h.

What are the months with the highest UV index?

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

What is the UV index intensity in May?

In May, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe 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 May
Sun Valley, TN

Average temperature in May - Sun Valley, TN
  • Average high temperature in May: 76.6°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (43.5°F).

  • Average low temperature in May: 56.3°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).

Average pressure in May
Sun Valley, TN

Average pressure in May - Sun Valley, TN
  • Average pressure in May: 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 (29.97"Hg).

Average wind speed in May
Sun Valley, TN

Average wind speed in May - Sun Valley, TN
  • Average wind speed in May: 5.8mph

The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).

Average humidity in May
Sun Valley, TN

Average humidity in May - Sun Valley, TN
  • Average humidity in May: 78%

The months with the highest relative humidity are February, March and December (79%).
The month with the lowest relative humidity is November (75%).

Average rainfall in May
Sun Valley, TN

Average rainfall in May - Sun Valley, TN
  • Average rainfall in May: 3.35"

The wettest month (with the highest rainfall) is February (4.09").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in May
Sun Valley, TN

Average rainfall days in May - Sun Valley, TN
  • Average rainfall days in May: 16.9 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is November (10.8 days).

Average snowfall in May
Sun Valley, TN

Average snowfall in May - Sun Valley, TN
  • Average snowfall in May: 0"

The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Sun Valley, TN

Average snowfall days in May - Sun Valley, TN
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Sun Valley, TN

Average daylight in May / Average sunshine in May - Sun Valley, TN
  • Average daylight in May: 14h and 1min

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 42min).

  • Average sunshine in May: 9h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in May
Sun Valley, TN

Average sunshine days in May - Sun Valley, TN
  • Average sunshine days in May: 11.9 days

The month with the most sunshine days is October (18.2 days).
The months with the least sunshine days are February and July (11.3 days).

Average UV index in May
Sun Valley, TN

Average UV index in May - Sun Valley, TN
  • Average UV index in May: 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).

Average cloud cover in May
Sun Valley, TN

Average cloud cover in May - Sun Valley, TN
  • Average cloud cover in May: 37

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in May
Sun Valley, TN

Average visibility in May - Sun Valley, TN
  • Average visibility in May: 5mi

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

Sun Valley, Tennessee, USA

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