2025 Compare Climate & Weather:
Signal Mountain, TN vs Sylvania, OH

Highlights

On average, there are 182 sunny days per year in Sylvania. Signal Mountain averages 209 sunny days per year. The US average is 205 sunny days.

Sylvania, Ohio gets 34.6 inches of rain, on average, per year. Signal Mountain, Tennessee gets 57.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Sylvania averages 31.7 inches of snow per year. Signal Mountain averages 3.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Sylvania, Ohio
Summer High: the July high is around 84.7 degrees
Winter Low: the January low is 18.4
Rain: averages 34.6 inches of rain a year
Snow: averages 31.7 inches of snow a year

Signal Mountain, Tennessee
Summer High: the July high is around 84.2 degrees
Winter Low: the January low is 26
Rain: averages 57.2 inches of rain a year
Snow: averages 3.2 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Sylvania is 6.9 (10=best), which means it is less comfortable than most places in Ohio.

The annual BestPlaces Comfort Index for Signal Mountain is 7.4 (10=best), which means it is more comfortable than most places in Tennessee.

Today's Weather - Signal Mountain, TN

58°F

Today's Weather - Sylvania, OH

44°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Signal Mountain / Sylvania

July is the hottest month for Signal Mountain with an average high temperature of 84.2°, which ranks it as one of the coolest places in Tennessee. In Signal Mountain, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Signal Mountain are September, June and May.

July is the hottest month for Sylvania with an average high temperature of 84.7°, which ranks it as warmer than most places in Ohio. In Sylvania, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sylvania are September, June and August.

January has the coldest nighttime temperatures for Signal Mountain with an average of 26.0°. This is about average compared to other places in Tennessee.

January has the coldest nighttime temperatures for Sylvania with an average of 18.4°. This is colder than most places in Ohio.

In Signal Mountain, there are 7.9 days annually when the high temperature is over 90°, which is one of the coolest places in Tennessee.

In Sylvania, there are 14.4 days annually when the high temperature is over 90°, which is hotter than most places in Ohio.

In Signal Mountain, there are 84.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Tennessee.

In Sylvania, there are 126.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Ohio.

In Signal Mountain, there are 0.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Tennessee.

In Sylvania, there are 4.4 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Ohio.

December is the wettest month in Signal Mountain with 5.9 inches of rain, and the driest month is October with 3.5 inches. The wettest season is Spring with 28% of yearly precipitation and 22% occurs in Autumn, which is the driest season. The annual rainfall of 57.2 inches in Signal Mountain means that it is wetter than most places in Tennessee.


May is the wettest month in Sylvania with 3.7 inches of rain, and the driest month is February with 2.0 inches. The wettest season is Autumn with 29% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 34.6 inches in Sylvania means that it is one of the driest places in Ohio.

July is the rainiest month in Signal Mountain with 10.1 days of rain, and October is the driest month with only 6.7 rainy days. There are 105.9 rainy days annually in Signal Mountain, which is less rainy than most places in Tennessee. The rainiest season is Autumn when it rains 27% of the time and the driest is Winter with only a 21% chance of a rainy day.

May is the rainiest month in Sylvania with 11.8 days of rain, and February is the driest month with only 9.0 rainy days. There are 124.2 rainy days annually in Sylvania, which is less rainy than most places in Ohio. The rainiest season is Summer when it rains 27% of the time and the driest is Autumn with only a 23% chance of a rainy day.

An annual snowfall of 3.2 inches in Signal Mountain means that it is less snowy than most places in Tennessee.

An annual snowfall of 31.7 inches in Sylvania means that it is snowier than most places in Ohio.

January is the snowiest month in Signal Mountain with 1.0 inches of snow, and 4 months of the year have significant snowfall.

January is the snowiest month in Sylvania with 10.0 inches of snow, and 6 months of the year have significant snowfall.