2024 Compare Climate & Weather:
Ellensburg, WA vs Boulder, CO
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Highlights
On average, there are 245 sunny days per year in Boulder. Ellensburg averages 204 sunny days per year. The US average is 205 sunny days.
Boulder, Colorado gets 18.1 inches of rain, on average, per year. Ellensburg, Washington gets 9 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
Boulder averages 71.1 inches of snow per year. Ellensburg averages 21.3 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
Boulder, Colorado
Summer High: the July high is around 88.1 degrees
Winter Low: the January low is 18.9
Rain: averages 18.1 inches of rain a year
Snow: averages 71.1 inches of snow a year
Ellensburg, Washington
Summer High: the July high is around 84.2 degrees
Winter Low: the January low is 23.1
Rain: averages 9 inches of rain a year
Snow: averages 21.3 inches of snow a year
BESTPLACES COMFORT INDEX
BoulderThe annual BestPlaces Comfort Index for Boulder is 7.1 (10=best), which means it is about average compared to other places in Colorado.
7.1 / 10
September, June and August are the most pleasant months in Boulder, while December and January are the least comfortable months.
EllensburgThe annual BestPlaces Comfort Index for Ellensburg is 7.2 (10=best), which means it is more comfortable than most places in Washington.
7.2 / 10
July, August and June are the most pleasant months in Ellensburg, while December and January are the least comfortable months.
Today's Weather - Ellensburg, WA
3 PM PST
Mostly Sunny
78°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| This Afternoon | Mostly Sunny | 78° / 52° | NW 23 mph |
| Thursday | Sunny | 72° / 39° | NW 17 to 26 mph |
| Friday | Sunny | 63° / 41° | NW 13 to 30 mph |
| Saturday | Sunny | 65° / 38° | NW 8 to 26 mph |
| Sunday | Sunny | 64° / 40° | NW 10 to 21 mph |
| Monday | Mostly Sunny | 66° / 43° | NW 10 to 18 mph |
| Tuesday | Slight Chance Rain Showers | 64° / 42° | NW 10 to 16 mph |
Today's Weather - Boulder, CO
3 PM PST
Showers And Thunderstorms Likely
66°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| This Afternoon | Showers And Thunderstorms Likely | 66° / 45° | NNE 7 to 12 mph |
| Thursday | Sunny | 74° / 51° | ENE 1 to 6 mph |
| Friday | Sunny | 81° / 52° | W 3 to 10 mph |
| Saturday | Sunny then Slight Chance Showers And Thunderstorms | 79° / 51° | SW 3 to 8 mph |
| Sunday | Mostly Sunny then Slight Chance Showers And Thunderstorms | 81° / 51° | WSW 8 to 17 mph |
| Monday | Mostly Sunny then Chance Showers And Thunderstorms | 76° / 48° | W 10 to 14 mph |
| Tuesday | Chance Showers And Thunderstorms | 74° / 47° | NW 10 mph |
Average Monthly High / Low (°F)
| Month | Ellensburg, WA | Boulder, CO |
|---|
| January | 36° / 23° | 47° / 19° |
| February | 43° / 25° | 48° / 20° |
| March | 53° / 30° | 55° / 27° |
| April | 61° / 35° | 62° / 34° |
| May | 69° / 43° | 72° / 43° |
| June | 76° / 49° | 82° / 51° |
| July | 84° / 55° | 88° / 57° |
| August | 84° / 54° | 86° / 55° |
| September | 76° / 45° | 78° / 46° |
| October | 62° / 35° | 66° / 36° |
| November | 46° / 28° | 54° / 26° |
| December | 34° / 22° | 45° / 18° |
Hot, Freezing, Rainy, Snowy Days: Ellensburg / Boulder
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 27 / 28 | 9 / 5 | 5 / 5 |
| February | 0 / 0 | 23 / 25 | 7 / 5 | 2 / 5 |
| March | 0 / 0 | 19 / 23 | 6 / 7 | 1 / 6 |
| April | 0 / 0 | 9 / 13 | 6 / 9 | 0 / 4 |
| May | 1 / 1 | 2 / 2 | 7 / 11 | 0 / 1 |
| June | 2 / 6 | 0 / 0 | 5 / 9 | 0 / 0 |
| July | 10 / 14 | 0 / 0 | 2 / 9 | 0 / 0 |
| August | 9 / 9 | 0 / 0 | 3 / 10 | 0 / 0 |
| September | 2 / 3 | 1 / 1 | 3 / 7 | 0 / 0 |
| October | 0 / 0 | 11 / 10 | 6 / 6 | 0 / 2 |
| November | 0 / 0 | 20 / 22 | 9 / 5 | 2 / 4 |
| December | 0 / 0 | 28 / 28 | 10 / 5 | 6 / 5 |
July is the hottest month for Ellensburg with an average high temperature of 84.2°, which ranks it as warmer than most places in Washington. In Ellensburg, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ellensburg are September, June and August.
July is the hottest month for Boulder with an average high temperature of 88.1°, which ranks it as about average compared to other places in Colorado. In Boulder, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Boulder are September, June and May.
December has the coldest nighttime temperatures for Ellensburg with an average of 21.6°. This is colder than most places in Washington.
December has the coldest nighttime temperatures for Boulder with an average of 18.3°. This is one of the warmest places in Colorado.
In Ellensburg, there are 23.5 days annually when the high temperature is over 90°, which is hotter than most places in Washington.
In Boulder, there are 32.4 days annually when the high temperature is over 90°, which is about average compared to other places in Colorado.
In Ellensburg, there are 139.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.
In Boulder, there are 151.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.
In Ellensburg, there are 2.3 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.
In Boulder, there are 5.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.
December is the wettest month in Ellensburg with 1.5 inches of rain, and the driest month is August with 0.2 inches. The wettest season is Spring with 39% of yearly precipitation and 12% occurs in Autumn, which is the driest season. The annual rainfall of 9.0 inches in Ellensburg means that it is one of the driest places in Washington.
May is the wettest month in Boulder with 2.5 inches of rain, and the driest month is January with 0.6 inches. The wettest season is Summer with 37% of yearly precipitation and 11% occurs in Spring, which is the driest season. The annual rainfall of 18.1 inches in Boulder means that it is wetter than most places in Colorado.
December is the rainiest month in Ellensburg with 10.4 days of rain, and July is the driest month with only 2.4 rainy days. There are 74.4 rainy days annually in Ellensburg, which is one of the least rainy places in Washington. The rainiest season is Spring when it rains 35% of the time and the driest is Autumn with only a 14% chance of a rainy day.
May is the rainiest month in Boulder with 10.5 days of rain, and January is the driest month with only 4.7 rainy days. There are 88.0 rainy days annually in Boulder, which is rainier than most 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 21.3 inches in Ellensburg means that it is snowier than most places in Washington.
An annual snowfall of 71.1 inches in Boulder means that it is snowier than most places in Colorado.
December is the snowiest month in Ellensburg with 7.9 inches of snow, and 5 months of the year have significant snowfall.
March is the snowiest month in Boulder with 14.3 inches of snow, and 9 months of the year have significant snowfall.
DID YOU KNOW?
Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.
Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.
Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.
Reviews for Ellensburg 
2 Reviews
Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More
Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More
Start Your Review of Ellensburg
Reviews for Boulder 2 Reviews
Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More
Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More
Start Your Review of Boulder
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