2025 Compare Climate & Weather:
Portland, OR vs Nashua, NH

Highlights

On average, there are 201 sunny days per year in Nashua. Portland averages 144 sunny days per year. The US average is 205 sunny days.

Nashua, New Hampshire gets 46.5 inches of rain, on average, per year. Portland, Oregon gets 42.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Nashua averages 56.5 inches of snow per year. Portland averages 2.6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Nashua, New Hampshire
Summer High: the July high is around 82.1 degrees
Winter Low: the January low is 12.4
Rain: averages 46.5 inches of rain a year
Snow: averages 56.5 inches of snow a year

Portland, Oregon
Summer High: the July high is around 80.5 degrees
Winter Low: the January low is 36.4
Rain: averages 42.8 inches of rain a year
Snow: averages 2.6 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Nashua is 6.7 (10=best), which means it is more comfortable than most places in New Hampshire.

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

Today's Weather - Portland, OR

53°F

Today's Weather - Nashua, NH

62°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Portland / Nashua

August is the hottest month for Portland with an average high temperature of 81.1°, which ranks it as cooler than most places in Oregon. In Portland, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Portland are September, July and August.

July is the hottest month for Nashua with an average high temperature of 82.1°, which ranks it as warmer than most places in New Hampshire. In Nashua, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Nashua are June, August and July.

December has the coldest nighttime temperatures for Portland with an average of 35.6°. This is warmer than most places in Oregon.

January has the coldest nighttime temperatures for Nashua with an average of 12.4°. This is warmer than most places in New Hampshire.

In Portland, there are 11.6 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.

In Nashua, there are 8.9 days annually when the high temperature is over 90°, which is one of the hottest places in New Hampshire.

In Portland, there are 29.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Oregon.

In Nashua, there are 154.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in New Hampshire.

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

In Nashua, there are 9.0 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in New Hampshire.

December is the wettest month in Portland with 6.8 inches of rain, and the driest month is July with 0.7 inches. The wettest season is Spring with 41% of yearly precipitation and 7% occurs in Autumn, which is the driest season. The annual rainfall of 42.8 inches in Portland means that it is about average compared to other places in Oregon.


October is the wettest month in Nashua with 4.4 inches of rain, and the driest month is February with 3.3 inches. The wettest season is Winter with 26% of yearly precipitation and 23% occurs in Spring, which is the driest season. The annual rainfall of 46.5 inches in Nashua means that it is wetter than most places in New Hampshire.

November is the rainiest month in Portland with 19.3 days of rain, and August is the driest month with only 3.7 rainy days. There are 155.9 rainy days annually in Portland, which is rainier than most places in Oregon. The rainiest season is Spring when it rains 34% of the time and the driest is Autumn with only a 11% chance of a rainy day.

May is the rainiest month in Nashua with 12.2 days of rain, and September is the driest month with only 9.1 rainy days. There are 125.3 rainy days annually in Nashua, which is less rainy than most places in New Hampshire. The rainiest season is Summer when it rains 27% of the time and the driest is Spring with only a 23% chance of a rainy day.

An annual snowfall of 2.6 inches in Portland means that it is less snowy than most places in Oregon.

An annual snowfall of 56.5 inches in Nashua means that it is less snowy than most places in New Hampshire.

December is the snowiest month in Portland with 0.9 inches of snow, and 3 months of the year have significant snowfall.

January is the snowiest month in Nashua with 17.1 inches of snow, and 6 months of the year have significant snowfall.