Hot-summer humid continental
Crystal Lake, Illinois
McHenry County, Illinois · Population 40k · 909 ft elevation
Living in Crystal Lake
Crystal Lake has a hot-summer humid continental climate: hot summers (July highs around 84°F) and cold winters (January lows around 14°F).
Precipitation is wet at about 39″ a year, and it gets a fair bit of snow (35″ a season).
Skies are partly sunny (58% of possible sunshine). Summers get sticky, with about 30 muggy days a year.
Air quality is moderate: a median AQI of 42, with about 12 unhealthy-air days in the latest year.
Crystal Lake at a glance
- Population
- 40k
- Elevation
- 909 ft
- Average daily high
- 59°F13th percentile
- Average daily low
- 39°F15th percentile
- Annual precipitation
- 39″35th percentile
- Annual snowfall
- 35″76th percentile
- Sunshine hours per year
- 2,610 hrs23th percentile
- Median AQI
- 4252th percentile
- Median home value
- $287k55th percentile
- Median rent
- $1,431/mo64th percentile
- Median household income
- $105k77th percentile
- Property tax rate
- 2.56%96th percentile
- Top state income-tax rate
- 5.0%
- Sales tax (state + local)
- 8.9%
- Unemployment rate
- 4.6%
- Homes with broadband
- 95%76th percentile
- Walkability index
- 9.865th percentile
- Average commute
- 30 min
- Math proficiency (8th grade)
- 42%42th percentile
- Reading proficiency (8th grade)
- 39%
- Violent crime rate
- 115 per 100k35th percentile
- Property crime rate
- 1,102 per 100k
- Overall natural-hazard risk
- 9151th percentile
- Outdoor access
- 2424th percentile
- Public land within 10 miles
- 1%
- Public land within 30 miles
- 2%
- Mountain relief within 30 miles
- 295 ft
Climate by month
| Month | High | Low | Precipitation | Snow | Sunshine |
|---|---|---|---|---|---|
| Jan | 32°F | 14°F | 2.0″ | 10.0″ | 137 hrs |
| Feb | 35°F | 16°F | 1.8″ | 9.0″ | 157 hrs |
| Mar | 47°F | 27°F | 2.5″ | 4.4″ | 194 hrs |
| Apr | 59°F | 37°F | 3.8″ | 1.2″ | 220 hrs |
| May | 71°F | 48°F | 5.0″ | — | 258 hrs |
| Jun | 80°F | 59°F | 5.3″ | — | 298 hrs |
| Jul | 84°F | 63°F | 3.9″ | — | 330 hrs |
| Aug | 82°F | 61°F | 3.8″ | — | 300 hrs |
| Sep | 75°F | 53°F | 3.5″ | — | 255 hrs |
| Oct | 62°F | 43°F | 3.2″ | 0.2″ | 188 hrs |
| Nov | 48°F | 31°F | 2.5″ | 1.6″ | 150 hrs |
| Dec | 36°F | 21°F | 2.1″ | 8.7″ | 124 hrs |
Near Crystal Lake
- Lakewood, IL · 4.7k
- Lake in the Hills, IL · 29k
- Cary, IL · 18k
- Algonquin, IL · 30k
- Fox River Grove, IL · 4.5k
- Huntley, IL · 28k
- Woodstock, IL · 26k
- McHenry, IL · 28k
Largest places in Illinois
- Chicago, IL · 2.7M
- Aurora, IL · 180k
- Joliet, IL · 150k
- Naperville, IL · 149k
- Rockford, IL · 148k
- Elgin, IL · 114k
- Springfield, IL · 114k
- Peoria, IL · 112k
Sources: NOAA climate normals, NASA POWER, EPA air quality, U.S. Census Bureau, FEMA, FBI, EPA walkability and EDFacts. Methodology