May weather forecast
Powell, TN

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Weather in May

May, the last month of the spring in Powell, is a warm month, with an average temperature ranging between max 78.4°F (25.8°C) and min 55.9°F (13.3°C).

Temperature

May's onset brings a temperature rise, moving from an agreeable 69.3°F (20.7°C) in April to a moderately hot 78.4°F (25.8°C). A stark contrast in day to night temperatures can be seen in Powell, Tennessee, in May, with an average low-temperature of 55.9°F (13.3°C).

Humidity

The average relative humidity in May in Powell is 74%.

Rainfall

In Powell, Tennessee, in May, during 14.9 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. Throughout the year, in Powell, there are 148.9 rainfall days, and 29.57" (751mm) of precipitation is accumulated.

Snowfall

In Powell, Tennessee, snow does not fall in May through October.

Daylight

In May, the average length of the day in Powell is 14h and 5min.
On the first day of the month, sunrise is at 6:42 am and sunset at 8:23 pm. On the last day of May, in Powell, Tennessee, sunrise is at 6:20 am and sunset at 8:47 pm EDT.

Sunshine

In May, the average sunshine in Powell, Tennessee, is 9.9h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index, 6 during May, leads to the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. 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. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May in Powell?

The high-temperature, in May, in Powell, is 78.4°F (25.8°C), while the low-temperature averages to 55.9°F (13.3°C).

What is the average humidity in May in Powell?

In Powell, Tennessee, the average relative humidity in May is 74%.

How many days does it rain in May in Powell?

In Powell, Tennessee, during May, the rain falls for 14.9 days and regularly aggregates up to 2.13" (54mm) of precipitation.

When it does not snow in Powell?

May through October are months without snowfall in Powell, Tennessee.

Does it snow in Powell in May?

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

What is the average length of the day in May in Powell?

In Powell, the average day length in May is 14h and 5min.

When are sunrise and sunset in May in Powell?

On the first day of May in Powell, Tennessee, sunrise is at 6:42 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:47 pm EDT.

How many hours of sunshine does Powell have in May?

In May, the average sunshine duration in Powell is 9.9h.

What is the month with the highest UV index in Powell?

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

How high is the UV index in May in Powell?

In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
Powell, TN

Average temperature in May - Powell, TN
  • Average high temperature in May: 78.4°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in May: 55.9°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).

Average pressure in May
Powell, TN

Average pressure in May - Powell, TN
  • Average pressure in May: 30.02"Hg

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

Average wind speed in May
Powell, TN

Average wind speed in May - Powell, TN
  • Average wind speed in May: 4.9mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

Average humidity in May
Powell, TN

Average humidity in May - Powell, TN
  • Average humidity in May: 74%

The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is August (70%).

Average rainfall in May
Powell, TN

Average rainfall in May - Powell, TN
  • Average rainfall in May: 2.13"

The wettest month (with the highest rainfall) is February (3.66").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in May
Powell, TN

Average rainfall days in May - Powell, TN
  • Average rainfall days in May: 14.9 days

The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is November (8.4 days).

Average snowfall in May
Powell, TN

Average snowfall in May - Powell, TN
  • Average snowfall in May: 0"

The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Powell, TN

Average snowfall days in May - Powell, TN
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Powell, TN

Average daylight in May / Average sunshine in May - Powell, 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 48min).

  • Average sunshine in May: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in May
Powell, TN

Average sunshine days in May - Powell, TN
  • Average sunshine days in May: 13.8 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (12.9 days).

Average UV index in May
Powell, TN

Average UV index in May - Powell, 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
Powell, TN

Average cloud cover in May - Powell, TN
  • Average cloud cover in May: 34

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in May
Powell, TN

Average visibility in May - Powell, TN
  • Average visibility in May: 6mi

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

Powell, Tennessee, USA

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