2025 Compare Climate & Weather:
Molalla, OR vs Arvada, CO

Highlights

On average, there are 246 sunny days per year in Arvada. Molalla averages 141 sunny days per year. The US average is 205 sunny days.

Arvada, Colorado gets 16.8 inches of rain, on average, per year. Molalla, Oregon gets 50.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Arvada averages 61 inches of snow per year. Molalla averages 1.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Arvada, Colorado
Summer High: the July high is around 89.5 degrees
Winter Low: the January low is 18
Rain: averages 16.8 inches of rain a year
Snow: averages 61 inches of snow a year

Molalla, Oregon
Summer High: the July high is around 79.8 degrees
Winter Low: the January low is 35.2
Rain: averages 50.8 inches of rain a year
Snow: averages 1.3 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Arvada is 7.3 (10=best), which means it is more comfortable than most places in Colorado.

The annual BestPlaces Comfort Index for Molalla is 7.4 (10=best), which means it is more comfortable than most places in Oregon.

Today's Weather - Molalla, OR

50°F

Today's Weather - Arvada, CO

66°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Molalla / Arvada

August is the hottest month for Molalla with an average high temperature of 80.7°, which ranks it as cooler than most places in Oregon. In Molalla, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Molalla are July, August and September.

July is the hottest month for Arvada with an average high temperature of 89.5°, which ranks it as warmer than most places in Colorado. In Arvada, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Arvada are September, June and May.

December has the coldest nighttime temperatures for Molalla with an average of 34.3°. This is warmer than most places in Oregon.

December has the coldest nighttime temperatures for Arvada with an average of 17.3°. This is warmer than most places in Colorado.

In Molalla, there are 10.9 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.

In Arvada, there are 40.0 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

In Molalla, there are 36.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Oregon.

In Arvada, there are 155.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Molalla, 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 Arvada, there are 5.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

November is the wettest month in Molalla with 7.6 inches of rain, and the driest month is August with 0.8 inches. The wettest season is Spring with 39% of yearly precipitation and 8% occurs in Autumn, which is the driest season. The annual rainfall of 50.8 inches in Molalla means that it is wetter than most places in Oregon.


May is the wettest month in Arvada with 2.4 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Summer with 36% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 16.8 inches in Arvada means that it is about average compared to other places in Colorado.

November is the rainiest month in Molalla with 20.8 days of rain, and August is the driest month with only 3.8 rainy days. There are 169.1 rainy days annually in Molalla, 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 Arvada with 9.7 days of rain, and January is the driest month with only 4.3 rainy days. There are 80.6 rainy days annually in Arvada, which is about average compared to other places in Colorado. The rainiest season is Autumn when it rains 31% of the time and the driest is Spring with only a 17% chance of a rainy day.

An annual snowfall of 1.3 inches in Molalla means that it is less snowy than most places in Oregon.

An annual snowfall of 61.0 inches in Arvada means that it is about average compared to other places in Colorado.

February is the snowiest month in Molalla with 0.6 inches of snow, and 1 month of the year have significant snowfall.

March is the snowiest month in Arvada with 11.9 inches of snow, and 9 months of the year have significant snowfall.