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Alcoa (TN) Weather and Climate: A Comprehensive Guide

The temperature in Alcoa can vary quite a bit throughout the year. Temperatures can be very warm during the warmest months, and cold during the cooler months. It is also known for its large amounts of rain/snowfall. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

Visitors to Alcoa can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a very warm 31°C in August to a chilly 8°C in the coolest month, January.

Nights are cooler, with lows often dropping to around -2°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Alcoa is known for its substantial rain/snowfall, with annual precipitation reaching 1378 mm. Alcoa offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between December (157 mm) and May (90 mm) is not too significant, making the climate enjoyable for visitors and residents alike.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

For those who appreciate different seasons, Alcoa serves as an ideal destination. Expect longer, more sun-filled days in June with an average of 9.7 hours of sunshine daily, and embrace the darker days in December, offering only 4.2 hours of daily sunlight. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Knoxville, the United States of America (19 KM, 12 Miles).

Daily hours of sunshine

Data from: Knoxville, the United States of America (19 KM, 12 Miles).

Forecast for Alcoa (TN)

Mon   Dec 23
9°C | -5°C
NW 2 m/s
clear and no rain

clear and no rain

Tue   Dec 24
11°C | -2°C
NW 2 m/s
almost clear and no rain

almost clear and no rain

Wed   Dec 25
14°C | 1°C
N 2 m/s
broken clouds and no rain

broken clouds and no rain

The best time of year to visit Alcoa in the United States of America

During the months of April, May and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which months have the greatest rainfall in Alcoa?
    Most rainfall (rainy season) is seen in July and December.
  • Which is the warmest month in Alcoa?
    August has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Alcoa?
    The coldest month is January with an average maximum temperature of 8°C.
  • Which is the wettest month in Alcoa?
    December tops the wettest month list with 157 mm of rainfall.
  • Which is the driest month in Alcoa?
    May is the driest month with 90 mm of precipitation.
  • Which is the sunniest month in Alcoa?
    June is the sunniest month with an average of 290 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.