2025 Compare Climate & Weather:
Helena, MT vs Hammonton, NJ

Highlights

On average, there are 207 sunny days per year in Hammonton. Helena averages 189 sunny days per year. The US average is 205 sunny days.

Hammonton, New Jersey gets 46.3 inches of rain, on average, per year. Helena, Montana gets 12.6 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Hammonton averages 20.4 inches of snow per year. Helena averages 42.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Hammonton, New Jersey
Summer High: the July high is around 86.4 degrees
Winter Low: the January low is 22.5
Rain: averages 46.3 inches of rain a year
Snow: averages 20.4 inches of snow a year

Helena, Montana
Summer High: the July high is around 83.4 degrees
Winter Low: the January low is 13.8
Rain: averages 12.6 inches of rain a year
Snow: averages 42.1 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Helena is 6.6 (10=best), which means it is about average compared to other places in Montana.

Today's Weather - Helena, MT

64°F

Today's Weather - Hammonton, NJ

51°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Helena / Hammonton

July is the hottest month for Helena with an average high temperature of 83.4°, which ranks it as cooler than most places in Montana. In Helena, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Helena are June, August and July.

July is the hottest month for Hammonton with an average high temperature of 86.4°, which ranks it as warmer than most places in New Jersey. In Hammonton, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Hammonton are September, June and May.

December has the coldest nighttime temperatures for Helena with an average of 13.6°. This is about average compared to other places in Montana.

January has the coldest nighttime temperatures for Hammonton with an average of 22.5°. This is about average compared to other places in New Jersey.

In Helena, there are 15.5 days annually when the high temperature is over 90°, which is cooler than most places in Montana.

In Hammonton, there are 20.5 days annually when the high temperature is over 90°, which is hotter than most places in New Jersey.

In Helena, there are 170.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.

In Hammonton, there are 109.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in New Jersey.

In Helena, there are 16.6 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Montana.

In Hammonton, there are 0.8 days annually when the nighttime low temperature falls below zero°, which is colder than most places in New Jersey.

June is the wettest month in Helena with 2.1 inches of rain, and the driest month is January with 0.4 inches. The wettest season is Autumn with 37% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 12.6 inches in Helena means that it is drier than most places in Montana.


August is the wettest month in Hammonton with 4.4 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Autumn with 28% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 46.3 inches in Hammonton means that it is drier than most places in New Jersey.

May is the rainiest month in Helena with 11.0 days of rain, and February is the driest month with only 5.5 rainy days. There are 89.6 rainy days annually in Helena, which is about average compared to other places in Montana. The rainiest season is Summer when it rains 29% of the time and the driest is Spring with only a 21% chance of a rainy day.

April is the rainiest month in Hammonton with 10.4 days of rain, and September is the driest month with only 7.6 rainy days. There are 109.3 rainy days annually in Hammonton, which is one of the least rainy places in New Jersey. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 42.1 inches in Helena means that it is about average compared to other places in Montana.

An annual snowfall of 20.4 inches in Hammonton means that it is less snowy than most places in New Jersey.

March is the snowiest month in Helena with 7.4 inches of snow, and 9 months of the year have significant snowfall.

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