2024 Compare Climate & Weather:
Aspen, CO vs Boulder, CO
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Highlights
On average, there are 245 sunny days per year in Boulder. Aspen averages 246 sunny days per year. The US average is 205 sunny days.
Boulder, Colorado gets 18.1 inches of rain, on average, per year. Aspen, Colorado gets 19.8 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. Aspen averages 152.6 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
Aspen, Colorado
Summer High: the July high is around 79.6 degrees
Winter Low: the January low is 6.8
Rain: averages 19.8 inches of rain a year
Snow: averages 152.6 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.
AspenThe annual BestPlaces Comfort Index for Aspen is 5.9 (10=best), which means it is less comfortable than most places in Colorado.
5.9 / 10
July, August and June are the most pleasant months in Aspen, while December and January are the least comfortable months.
Today's Weather - Aspen, CO
10 PM PST
Showers And Thunderstorms Likely then Slight Chance T-storms
38°F
DAY | DESCRIPTION | HIGH / LOW | WIND |
---|
Tonight | Showers And Thunderstorms Likely then Slight Chance T-storms | 34° / 50° | ESE 5 mph |
Saturday Night | Rain And Snow Showers | 35° / 53° | WNW 5 mph |
Sunday Night | Chance Snow Showers then Mostly Cloudy | 30° / 58° | WSW 5 mph |
Monday Night | Partly Cloudy | 36° / 64° | SW 10 to 15 mph |
Tuesday Night | Mostly Clear | 37° / 64° | SSW 10 to 15 mph |
Wednesday Night | Slight Chance T-storms then Mostly Clear | 34° / 65° | SSW 5 to 15 mph |
Thursday Night | Slight Chance Showers And Thunderstorms then Partly Cloudy | 36° / 67° | SSW 5 to 15 mph |
Today's Weather - Boulder, CO
10 PM PST
Showers And Thunderstorms then Rain
47°F
DAY | DESCRIPTION | HIGH / LOW | WIND |
---|
Tonight | Showers And Thunderstorms then Rain | 39° / 42° | N 7 mph |
Saturday Night | Showers And Thunderstorms | 38° / 57° | NNW 5 to 15 mph |
Sunday Night | Slight Chance Showers And Thunderstorms then Partly Cloudy | 40° / 67° | W 8 mph |
Monday Night | Partly Cloudy | 44° / 71° | WSW 13 mph |
Tuesday Night | Mostly Clear | 44° / 69° | WSW 8 to 12 mph |
Wednesday Night | Chance Rain Showers | 41° / 65° | NW 12 mph |
Thursday Night | Slight Chance Rain Showers then Partly Cloudy | 43° / 72° | SSW 9 mph |
Average Monthly High / Low (°F)
Month | Aspen, CO | Boulder, CO |
---|
January | 34° / 7° | 47° / 19° |
February | 37° / 9° | 48° / 20° |
March | 44° / 18° | 55° / 27° |
April | 52° / 26° | 62° / 34° |
May | 63° / 33° | 72° / 43° |
June | 74° / 40° | 82° / 51° |
July | 80° / 46° | 88° / 57° |
August | 77° / 45° | 86° / 55° |
September | 69° / 37° | 78° / 46° |
October | 57° / 28° | 66° / 36° |
November | 43° / 17° | 54° / 26° |
December | 33° / 8° | 45° / 18° |
Hot, Freezing, Rainy, Snowy Days: Aspen / Boulder
Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
---|
January | 0 / 0 | 31 / 28 | 9 / 5 | 10 / 5 |
February | 0 / 0 | 28 / 25 | 9 / 5 | 10 / 5 |
March | 0 / 0 | 30 / 23 | 10 / 7 | 9 / 6 |
April | 0 / 0 | 25 / 13 | 9 / 9 | 7 / 4 |
May | 0 / 1 | 13 / 2 | 9 / 11 | 2 / 1 |
June | 0 / 6 | 4 / 0 | 8 / 9 | 0 / 0 |
July | 1 / 14 | 1 / 0 | 10 / 9 | 0 / 0 |
August | 0 / 9 | 1 / 0 | 12 / 10 | 0 / 0 |
September | 0 / 3 | 6 / 1 | 10 / 7 | 1 / 0 |
October | 0 / 0 | 22 / 10 | 8 / 6 | 3 / 2 |
November | 0 / 0 | 29 / 22 | 8 / 5 | 8 / 4 |
December | 0 / 0 | 31 / 28 | 9 / 5 | 10 / 5 |
July is the hottest month for Aspen with an average high temperature of 79.6°, which ranks it as cooler than most places in Colorado. In Aspen, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Aspen are August, July and June.
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.
January has the coldest nighttime temperatures for Aspen with an average of 6.8°. This is colder than most places in Colorado.
December has the coldest nighttime temperatures for Boulder with an average of 18.3°. This is one of the warmest places in Colorado.
In Aspen, there are 0.8 days annually when the high temperature is over 90°, which is cooler than most places in Colorado.
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 Aspen, there are 220.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Colorado.
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 Aspen, there are 20.8 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Colorado.
In Boulder, there are 5.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.
September is the wettest month in Aspen with 1.9 inches of rain, and the driest month is June with 1.2 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 19.8 inches in Aspen means that it is wetter than most places in Colorado.
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.
August is the rainiest month in Aspen with 12.3 days of rain, and June is the driest month with only 7.6 rainy days. There are 110.7 rainy days annually in Aspen, which is rainier than most places in Colorado. The rainiest season is Autumn when it rains 27% of the time and the driest is Winter with only a 23% 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 152.6 inches in Aspen means that it is one of the snowiest places in Colorado.
An annual snowfall of 71.1 inches in Boulder means that it is snowier than most places in Colorado.
March is the snowiest month in Aspen with 24.4 inches of snow, and 10 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.
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
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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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