Humid subtropical
Boulder, Colorado
Boulder County, Colorado · Population 106k · 5,348 ft elevation
Living in Boulder
Boulder has a humid subtropical climate: hot summers (July highs around 88°F) and cold winters (January lows around 22°F).
Precipitation is dry at about 21″ a year, and it is a snowy place (93″ a season).
Skies are sunny (71% of possible sunshine). It never gets truly muggy.
Air quality is moderate: a median AQI of 48, with about 3 unhealthy-air days in the latest year.
Boulder is an outdoor hub: about 26% of the land within 30 miles is public (parks, national forest and the like), and the terrain rises and falls about 6,200 ft around town.
Boulder at a glance
- Population
- 106k
- Elevation
- 5,348 ft
- Average daily high
- 66°F50th percentile
- Average daily low
- 38°F12th percentile
- Annual precipitation
- 21″15th percentile
- Annual snowfall
- 93″98th percentile
- Sunshine hours per year
- 3,148 hrs80th percentile
- Median AQI
- 4880th percentile
- Median home value
- $983k97th percentile
- Median rent
- $1,924/mo85th percentile
- Median household income
- $85k61th percentile
- Property tax rate
- 0.51%10th percentile
- Top state income-tax rate
- 4.4%
- Sales tax (state + local)
- 7.9%
- Unemployment rate
- 6.1%
- Homes with broadband
- 95%76th percentile
- Walkability index
- 14.996th percentile
- Average commute
- 19 min
- Math proficiency (8th grade)
- 53%63th percentile
- Reading proficiency (8th grade)
- 59%
- Violent crime rate
- 354 per 100k77th percentile
- Property crime rate
- 2,424 per 100k
- Overall natural-hazard risk
- 9151th percentile
- Outdoor access
- 9594th percentile
- Public land within 10 miles
- 12%
- Public land within 30 miles
- 26%
- Mountain relief within 30 miles
- 6,168 ft
Climate by month
| Month | High | Low | Precipitation | Snow | Sunshine |
|---|---|---|---|---|---|
| Jan | 47°F | 22°F | 0.8″ | 11.3″ | 200 hrs |
| Feb | 49°F | 23°F | 1.0″ | 15.0″ | 193 hrs |
| Mar | 57°F | 29°F | 2.0″ | 15.7″ | 251 hrs |
| Apr | 63°F | 35°F | 3.0″ | 14.7″ | 257 hrs |
| May | 72°F | 43°F | 3.2″ | 2.0″ | 289 hrs |
| Jun | 83°F | 52°F | 1.9″ | — | 340 hrs |
| Jul | 88°F | 57°F | 1.8″ | — | 354 hrs |
| Aug | 86°F | 56°F | 1.7″ | — | 329 hrs |
| Sep | 79°F | 49°F | 2.1″ | 1.0″ | 292 hrs |
| Oct | 66°F | 38°F | 1.6″ | 7.0″ | 244 hrs |
| Nov | 55°F | 29°F | 1.2″ | 13.1″ | 209 hrs |
| Dec | 47°F | 22°F | 0.8″ | 13.0″ | 190 hrs |
Near Boulder
- Gunbarrel, CO · 10k
- Louisville, CO · 21k
- Niwot, CO · 3.8k
- Superior, CO · 13k
- Lafayette, CO · 30k
- Erie, CO · 32k
- Broomfield, CO · 75k
- Longmont, CO · 99k
Largest places in Colorado
- Denver, CO · 714k
- Colorado Springs, CO · 483k
- Aurora, CO · 390k
- Fort Collins, CO · 170k
- Lakewood, CO · 156k
- Thornton, CO · 143k
- Arvada, CO · 123k
- Westminster, CO · 116k
Sources: NOAA climate normals, NASA POWER, EPA air quality, U.S. Census Bureau, FEMA, FBI, EPA walkability and EDFacts. Methodology