2025 Compare Climate & Weather:
Arvada, CO vs Greybull, WY

Highlights

On average, there are 207 sunny days per year in Greybull. Arvada averages 246 sunny days per year. The US average is 205 sunny days.

Greybull, Wyoming gets 7 inches of rain, on average, per year. Arvada, Colorado gets 16.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Greybull averages 18.7 inches of snow per year. Arvada averages 61 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Greybull, Wyoming
Summer High: the July high is around 90 degrees
Winter Low: the January low is 3.4
Rain: averages 7 inches of rain a year
Snow: averages 18.7 inches of snow a year

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

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Greybull is 7.0 (10=best), which means it is one of the most pleasant places in Wyoming.

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

Today's Weather - Arvada, CO

56°F

Today's Weather - Greybull, WY

46°F

Average Monthly High / Low (°F)

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

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.

July is the hottest month for Greybull with an average high temperature of 90.0°, which ranks it as one of the hottest places in Wyoming. In Greybull, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Greybull are September, June and May.

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

January has the coldest nighttime temperatures for Greybull with an average of 3.4°. This is colder than most places in Wyoming.

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

In Greybull, there are 41.0 days annually when the high temperature is over 90°, which is one of the hottest places in Wyoming.

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 Greybull, there are 181.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Wyoming.

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

In Greybull, there are 27.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Wyoming.

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.


May is the wettest month in Greybull with 1.4 inches of rain, and the driest month is January with 0.2 inches. The wettest season is Summer with 33% of yearly precipitation and 12% occurs in Spring, which is the driest season. The annual rainfall of 7.0 inches in Greybull means that it is one of the driest places in Wyoming.

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.

June is the rainiest month in Greybull with 6.4 days of rain, and February is the driest month with only 2.5 rainy days. There are 45.3 rainy days annually in Greybull, which is one of the least rainy places in Wyoming. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 18% chance of a rainy day.

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

An annual snowfall of 18.7 inches in Greybull means that it is one of the least snowy places in Wyoming.

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

December is the snowiest month in Greybull with 4.1 inches of snow, and 8 months of the year have significant snowfall.