May weather forecast
Alcoa, TN

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Weather in May

In May, Alcoa embraces warmer temperatures, marking the onset of the summer season. This month imparts one of the most significant transformations in the city's weather, giving way to longer days and increasing sunlight hours. Connected with the increasing warmth, daylight hours peak at 14.1 hours this month. The city witnesses a shift in outdoor activities, with the focus shifting to lakeside fun and camping. As warm weather lovers start pouring into the city, Alcoa's vibe becomes more dynamic and vibrantly summer-like.

Temperature

Alcoa's transition into May sees a rise in the average high-temperature, advancing from an agreeable 68.5°F (20.3°C) in April to a moderately hot 77.5°F (25.3°C). The May nights in Alcoa, Tennessee, bear witness to a significant drop from the daytime highs, settling at an average temperature of 55.4°F (13°C).

Humidity

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

Rainfall

In Alcoa, in May, it is raining for 13.9 days, with typically 1.38" (35mm) of accumulated precipitation. In Alcoa, Tennessee, during the entire year, the rain falls for 148.2 days and collects up to 18.23" (463mm) of precipitation.

Snowfall

April through September are months without snowfall in Alcoa, Tennessee.

Daylight

In May, the average length of the day in Alcoa is 14h and 4min.
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, sunrise is at 6:21 am and sunset at 8:46 pm EDT.

Sunshine

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

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Alcoa. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, the average maximum UV index of 6 translates into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Alcoa in May?

The high-temperature, in May, in Alcoa, records 77.5°F (25.3°C), while the low-temperature is 55.4°F (13°C).

What is the average humidity in May in Alcoa?

In Alcoa, Tennessee, the average relative humidity in May is 75%.

How many days does it rain in May in Alcoa?

In May, the rain falls for 13.9 days. Throughout May, 1.38" (35mm) of precipitation is accumulated.

When it does not snow in Alcoa?

In Alcoa, snow does not fall in April through September.

How many hours of daylight does Alcoa have in May?

In May, the average day length in Alcoa, Tennessee, is 14h and 4min.

What time are sunrise and sunset in May in Alcoa?

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, in Alcoa, sunrise is at 6:21 am and sunset at 8:46 pm EDT.

How many hours of sunshine does Alcoa have in May?

In Alcoa, Tennessee, the average sunshine duration in May is 10.2h.

What are the months with the highest UV index in Alcoa?

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

What is the UV index reading in May in Alcoa?

The average daily maximum UV index in May in Alcoa is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from 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
Alcoa, TN

Average temperature in May - Alcoa, TN
  • Average high temperature in May: 77.5°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in May: 55.4°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 (29.5°F).

Average pressure in May
Alcoa, TN

Average pressure in May - Alcoa, 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
Alcoa, TN

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

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in May
Alcoa, TN

Average humidity in May - Alcoa, 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
Alcoa, TN

Average rainfall in May - Alcoa, TN
  • Average rainfall in May: 1.38"

The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is September (0.94").

Average rainfall days in May
Alcoa, TN

Average rainfall days in May - Alcoa, TN
  • Average rainfall days in May: 13.9 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in May
Alcoa, TN

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

The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in May
Alcoa, TN

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

The month with the highest number of snowfall days is January (5.4 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
Alcoa, TN

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

The month with the longest days is June (Average daylight: 14h and 30min).
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 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in May
Alcoa, TN

Average sunshine days in May - Alcoa, TN
  • Average sunshine days in May: 12.7 days

The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are February and July (12.5 days).

Average UV index in May
Alcoa, TN

Average UV index in May - Alcoa, 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
Alcoa, TN

Average cloud cover in May - Alcoa, TN
  • Average cloud cover in May: 33

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in May
Alcoa, TN

Average visibility in May - Alcoa, 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).

Alcoa, Tennessee, USA

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