2025 Compare Climate & Weather:
Greencastle, PA vs Huntsville, AL

Highlights

On average, there are 199 sunny days per year in Huntsville. Greencastle averages 197 sunny days per year. The US average is 205 sunny days.

Huntsville, Alabama gets 54.7 inches of rain, on average, per year. Greencastle, Pennsylvania gets 41.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Huntsville averages 1.6 inches of snow per year. Greencastle averages 29.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Huntsville, Alabama
Summer High: the July high is around 90.1 degrees
Winter Low: the January low is 29.6
Rain: averages 54.7 inches of rain a year
Snow: averages 1.6 inches of snow a year

Greencastle, Pennsylvania
Summer High: the July high is around 85.4 degrees
Winter Low: the January low is 22.4
Rain: averages 41.1 inches of rain a year
Snow: averages 29.3 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Huntsville is 7.3 (10=best), which means it is about average compared to other places in Alabama.

The annual BestPlaces Comfort Index for Greencastle is 7.2 (10=best), which means it is one of the most pleasant places in Pennsylvania.

Today's Weather - Greencastle, PA

71°F

Today's Weather - Huntsville, AL

62°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Greencastle / Huntsville

July is the hottest month for Greencastle with an average high temperature of 85.4°, which ranks it as warmer than most places in Pennsylvania. In Greencastle, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Greencastle are September, June and August.

August is the hottest month for Huntsville with an average high temperature of 90.5°, which ranks it as about average compared to other places in Alabama. In Huntsville, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Huntsville are May, October and April.

January has the coldest nighttime temperatures for Greencastle with an average of 22.4°. This is one of the warmest places in Pennsylvania.

January has the coldest nighttime temperatures for Huntsville with an average of 29.6°. This is colder than most places in Alabama.

In Greencastle, there are 15.5 days annually when the high temperature is over 90°, which is hotter than most places in Pennsylvania.

In Huntsville, there are 52.4 days annually when the high temperature is over 90°, which is about average compared to other places in Alabama.

In Greencastle, there are 107.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Pennsylvania.

In Huntsville, there are 66.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Alabama.

In Greencastle, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Pennsylvania.

In Huntsville, there are 0.2 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Alabama.

May is the wettest month in Greencastle with 4.1 inches of rain, and the driest month is February with 2.7 inches. The wettest season is Summer with 28% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 41.1 inches in Greencastle means that it is drier than most places in Pennsylvania.


December is the wettest month in Huntsville with 5.8 inches of rain, and the driest month is August with 3.5 inches. The wettest season is Spring with 29% of yearly precipitation and 22% occurs in Autumn, which is the driest season. The annual rainfall of 54.7 inches in Huntsville means that it is drier than most places in Alabama.

May is the rainiest month in Greencastle with 12.3 days of rain, and October is the driest month with only 8.4 rainy days. There are 119.4 rainy days annually in Greencastle, which is less rainy than most places in Pennsylvania. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.

December is the rainiest month in Huntsville with 11.2 days of rain, and September is the driest month with only 7.7 rainy days. There are 120.3 rainy days annually in Huntsville, which is one of the rainiest places in Alabama. The rainiest season is Spring when it rains 27% of the time and the driest is Winter with only a 21% chance of a rainy day.

An annual snowfall of 29.3 inches in Greencastle means that it is about average compared to other places in Pennsylvania.

An annual snowfall of 1.6 inches in Huntsville means that it is snowier than most places in Alabama.

February is the snowiest month in Greencastle with 10.1 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Huntsville with 0.7 inches of snow, and 1 month of the year have significant snowfall.