May weather forecast
Blue Grass, TN

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Weather in May

The last month of the spring, May, is a warm month in Blue Grass, Tennessee, with an average temperature fluctuating between 55.8°F (13.2°C) and 77.9°F (25.5°C).

Temperature

The start of May brings a subtle rise in the average high-temperature, moving from an agreeable 69.1°F (20.6°C) in April to a moderately hot 77.9°F (25.5°C). Blue Grass measures a considerable dip from daytime highs with an average low-temperature of 55.8°F (13.2°C) during May.

Humidity

In May, the average relative humidity is 75%.

Rainfall

In Blue Grass, in May, it is raining for 16.9 days, with typically 2.72" (69mm) of accumulated precipitation. In Blue Grass, during the entire year, the rain falls for 177.6 days and collects up to 37.91" (963mm) of precipitation.

Snowfall

In Blue Grass, Tennessee, snow does not fall in May through September.

Daylight

In Blue Grass, the average length of the day in May is 14h and 5min.
On the first day of May in Blue Grass, sunrise is at 6:42 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:46 pm EDT.

Sunshine

The average sunshine in May is 10.1h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily high UV index of 6 in May leads to these guidelines:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Updated: Jun 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

In Blue Grass, in May, the average high-temperature is 77.9°F (25.5°C), and the average low-temperature is 55.8°F (13.2°C).

What is the average humidity in May?

In Blue Grass, the average relative humidity in May is 75%.

How much does it rain in May?

In May, the rain falls for 16.9 days. Throughout May, 2.72" (69mm) of precipitation is accumulated.

When it does not snow?

In Blue Grass, snow does not fall in May through September.

Does it snow in May?

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

What is the average length of the day in May in Blue Grass?

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

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:42 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:46 pm EDT.

How many hours of sunshine does Blue Grass have in May?

In Blue Grass, the average sunshine duration in May is 10.1h.

When is 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 Blue Grass, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's 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
Blue Grass, TN

Average temperature in May - Blue Grass, TN
  • Average high temperature in May: 77.9°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in May: 55.8°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

Average pressure in May
Blue Grass, TN

Average pressure in May - Blue Grass, 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
Blue Grass, TN

Average wind speed in May - Blue Grass, TN
  • Average wind speed in May: 4.8mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in May
Blue Grass, TN

Average humidity in May - Blue Grass, TN
  • Average humidity in May: 75%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).

Average rainfall in May
Blue Grass, TN

Average rainfall in May - Blue Grass, TN
  • Average rainfall in May: 2.72"

The wettest month (with the highest rainfall) is February (4.33").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in May
Blue Grass, TN

Average rainfall days in May - Blue Grass, TN
  • Average rainfall days in May: 16.9 days

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (10.3 days).

Average snowfall in May
Blue Grass, TN

Average snowfall in May - Blue Grass, TN
  • Average snowfall in May: 0"

The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Blue Grass, TN

Average snowfall days in May - Blue Grass, TN
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (5.5 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
Blue Grass, TN

Average daylight in May / Average sunshine in May - Blue Grass, 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: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in May
Blue Grass, TN

Average sunshine days in May - Blue Grass, TN
  • Average sunshine days in May: 11.7 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in May
Blue Grass, TN

Average UV index in May - Blue Grass, 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
Blue Grass, TN

Average cloud cover in May - Blue Grass, TN
  • Average cloud cover in May: 33

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in May
Blue Grass, TN

Average visibility in May - Blue Grass, TN
  • Average visibility in May: 6mi

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

Blue Grass, Tennessee, USA

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