2025 Compare Climate & Weather:
York, PA vs Riverdale, GA

Highlights

On average, there are 214 sunny days per year in Riverdale. York averages 201 sunny days per year. The US average is 205 sunny days.

Riverdale, Georgia gets 49.5 inches of rain, on average, per year. York, Pennsylvania gets 41.9 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Riverdale averages 1.5 inches of snow per year. York averages 23.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Riverdale, Georgia
Summer High: the July high is around 89.5 degrees
Winter Low: the January low is 32.6
Rain: averages 49.5 inches of rain a year
Snow: averages 1.5 inches of snow a year

York, Pennsylvania
Summer High: the July high is around 86 degrees
Winter Low: the January low is 21.3
Rain: averages 41.9 inches of rain a year
Snow: averages 23.2 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Riverdale is 7.5 (10=best), which means it is more comfortable than most places in Georgia.

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

Today's Weather - York, PA

75°F

Today's Weather - Riverdale, GA

58°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: York / Riverdale

July is the hottest month for York with an average high temperature of 86.0°, which ranks it as one of the hottest places in Pennsylvania. In York, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for York are September, June and May.

July is the hottest month for Riverdale with an average high temperature of 89.5°, which ranks it as cooler than most places in Georgia. In Riverdale, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Riverdale are May, September and October.

January has the coldest nighttime temperatures for York with an average of 21.3°. This is warmer than most places in Pennsylvania.

January has the coldest nighttime temperatures for Riverdale with an average of 32.6°. This is about average compared to other places in Georgia.

In York, there are 17.2 days annually when the high temperature is over 90°, which is one of the hottest places in Pennsylvania.

In Riverdale, there are 40.0 days annually when the high temperature is over 90°, which is cooler than most places in Georgia.

In York, there are 113.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Pennsylvania.

In Riverdale, there are 48.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Georgia.

In York, there are 1.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Pennsylvania.

In Riverdale, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Georgia.

September is the wettest month in York with 4.2 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Summer with 27% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 41.9 inches in York means that it is drier than most places in Pennsylvania.


July is the wettest month in Riverdale with 5.2 inches of rain, and the driest month is May with 3.5 inches. The wettest season is Spring with 26% of yearly precipitation and 23% occurs in Winter, which is the driest season. The annual rainfall of 49.5 inches in Riverdale means that it is about average compared to other places in Georgia.

May is the rainiest month in York with 12.4 days of rain, and October is the driest month with only 8.4 rainy days. There are 120.6 rainy days annually in York, 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 23% chance of a rainy day.

July is the rainiest month in Riverdale with 10.9 days of rain, and October is the driest month with only 6.8 rainy days. There are 108.4 rainy days annually in Riverdale, which is rainier than most places in Georgia. The rainiest season is Autumn when it rains 28% of the time and the driest is Winter with only a 21% chance of a rainy day.

An annual snowfall of 23.2 inches in York means that it is less snowy than most places in Pennsylvania.

An annual snowfall of 1.5 inches in Riverdale means that it is snowier than most places in Georgia.

February is the snowiest month in York with 8.2 inches of snow, and 5 months of the year have significant snowfall.

January is the snowiest month in Riverdale with 0.8 inches of snow, and 1 month of the year have significant snowfall.