2025 Compare Climate & Weather:
Monmouth Junction, NJ vs Alpharetta, GA

Highlights

On average, there are 218 sunny days per year in Alpharetta. Monmouth Junction averages 210 sunny days per year. The US average is 205 sunny days.

Alpharetta, Georgia gets 53.4 inches of rain, on average, per year. Monmouth Junction, New Jersey gets 48.3 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Alpharetta averages 1.6 inches of snow per year. Monmouth Junction averages 23.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Alpharetta, Georgia
Summer High: the July high is around 87.9 degrees
Winter Low: the January low is 30
Rain: averages 53.4 inches of rain a year
Snow: averages 1.6 inches of snow a year

Monmouth Junction, New Jersey
Summer High: the July high is around 86 degrees
Winter Low: the January low is 22.3
Rain: averages 48.3 inches of rain a year
Snow: averages 23.2 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Alpharetta is 7.6 (10=best), which means it is one of the most pleasant places in Georgia.

The annual BestPlaces Comfort Index for Monmouth Junction is 7.2 (10=best), which means it is about average compared to other places in New Jersey.

Today's Weather - Monmouth Junction, NJ

65°F

Today's Weather - Alpharetta, GA

62°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Monmouth Junction / Alpharetta

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

July is the hottest month for Alpharetta with an average high temperature of 87.9°, which ranks it as cooler than most places in Georgia. In Alpharetta, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Alpharetta are May, September and October.

January has the coldest nighttime temperatures for Monmouth Junction with an average of 22.3°. This is about average compared to other places in New Jersey.

January has the coldest nighttime temperatures for Alpharetta with an average of 30.0°. This is colder than most places in Georgia.

In Monmouth Junction, there are 20.2 days annually when the high temperature is over 90°, which is hotter than most places in New Jersey.

In Alpharetta, there are 27.3 days annually when the high temperature is over 90°, which is cooler than most places in Georgia.

In Monmouth Junction, there are 106.5 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in New Jersey.

In Alpharetta, there are 64.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Georgia.

In Monmouth Junction, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in New Jersey.

In Alpharetta, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Georgia.

July is the wettest month in Monmouth Junction with 5.2 inches of rain, and the driest month is February with 2.7 inches. The wettest season is Autumn with 28% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 48.3 inches in Monmouth Junction means that it is wetter than most places in New Jersey.


March is the wettest month in Alpharetta with 5.1 inches of rain, and the driest month is April with 3.8 inches. The wettest season is Spring with 27% of yearly precipitation and 23% occurs in Winter, which is the driest season. The annual rainfall of 53.4 inches in Alpharetta means that it is wetter than most places in Georgia.

May is the rainiest month in Monmouth Junction with 12.1 days of rain, and September is the driest month with only 8.5 rainy days. There are 120.1 rainy days annually in Monmouth Junction, which is rainier than most places in New Jersey. 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.

January is the rainiest month in Alpharetta with 10.5 days of rain, and October is the driest month with only 6.8 rainy days. There are 108.0 rainy days annually in Alpharetta, which is rainier than most places in Georgia. The rainiest season is Spring 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 Monmouth Junction means that it is about average compared to other places in New Jersey.

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

February is the snowiest month in Monmouth Junction with 7.8 inches of snow, and 5 months of the year have significant snowfall.

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