2025 Compare Climate & Weather:
Portland, OR vs Trumbull, CT

Highlights

On average, there are 175 sunny days per year in Trumbull. Portland averages 144 sunny days per year. The US average is 205 sunny days.

Trumbull, Connecticut gets 50.1 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.

Trumbull averages 34.5 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

Trumbull, Connecticut
Summer High: the July high is around 83.2 degrees
Winter Low: the January low is 20.6
Rain: averages 50.1 inches of rain a year
Snow: averages 34.5 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 Trumbull is 7.1 (10=best), which means it is more comfortable than most places in Connecticut.

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

73°F

Today's Weather - Trumbull, CT

59°F

Average Monthly High / Low (°F)

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

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 Trumbull with an average high temperature of 83.2°, which ranks it as about average compared to other places in Connecticut. In Trumbull, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Trumbull are June, September and August.

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 Trumbull with an average of 20.6°. This is warmer than most places in Connecticut.

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

In Trumbull, there are 9.0 days annually when the high temperature is over 90°, which is hotter than most places in Connecticut.

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 Trumbull, there are 111.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Connecticut.

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 Trumbull, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Connecticut.

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.


April is the wettest month in Trumbull with 4.7 inches of rain, and the driest month is February with 3.2 inches. The wettest season is Summer with 27% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 50.1 inches in Trumbull means that it is about average compared to other places in Connecticut.

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 Trumbull with 11.2 days of rain, and February is the driest month with only 8.2 rainy days. There are 113.8 rainy days annually in Trumbull, which is less rainy than most places in Connecticut. 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.

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

An annual snowfall of 34.5 inches in Trumbull means that it is about average compared to other places in Connecticut.

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 Trumbull with 10.2 inches of snow, and 6 months of the year have significant snowfall.