Daylight through the yearLongest day (Jun 21): 15 h 16 min5:17 am – 8:33 pmShortest day (Dec 21): 9 h 6 min7:18 am – 4:24 pm
Sun todaySunrise –Sunset –
ClimateWarmest month July: highs 84°F, lows 63°FColdest month January: highs 32°F, lows 14°F39 in of rain a year, on about 75 dayswettest month June35 in of snow a year, on about 22 days22 days above 90°F, 136 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Crystal Lake 4nw station, 4 mi away
Nearby landmarksCrystal Lakelake · 1.4 miLake in the Hillslake · 3.3 miMcHenry County Collegecollege · 2.8 miVulcan Lakesreservoir · 1.6 miIndian Trail Beachbeach · 3.3 miFox River Reservoirreservoir · 6.8 miSource: USGS Geographic Names Information System
Parks and public landsThe Commons Athletic Parkpark · under a mileNaoki Kamijima Parkpark · under a mileSterne's Fen Nature Preservestate conservation land · 2.1 mi · 187 acresFen Nature Preservestate conservation land · 2.3 mi · 127 acresLussky Marshstate conservation land · 2.6 mi · 241 acresPresidential Parkstate park · 5.0 miSource: USGS Protected Areas Database (PAD-US)
Earthquakes4 of magnitude 3 or more within 50 miles since 19700 of magnitude 4+, 0 of magnitude 5+Largest: magnitude 3.8 on 10 Feb 201020 mi away, near Lily Lake, IllinoisMost recent: magnitude 3.1 on 15 Jul 202445 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Relatively ModerateMcHenry County, IL, compared with all US countiesHigher-risk hazardsCold wave Relatively HighTornado Relatively HighStrong wind Relatively HighSource: FEMA National Risk Index (county level)
Air quality68% of days had good air in 2025247 of 364 days measured105 moderate, 11 unhealthy for sensitive groups, 1 unhealthy daysMedian index 42, worst day 165main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, McHenry County monitors, IL
Drinking waterCrystal Lakeserves 40,661 people from ground waterNo health-based violations since 202112 monitoring or reporting violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation900 ft274 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalNorthwestern Medicine Centegra Memorial Medical Center4.8 miPost officeCrystal Lake Post Office1.0 miTown hallCrystal Lake City Hall1.1 miPoliceCrystal Lake Police Department1.1 miFire stationCrystal Lake Fire Rescue Department Station 11.1 miSource: USGS National Structures Dataset
SchoolsWithin 2 mi13 schools5 elementary, 3 middle, 3 high, 2 otherHighFaith Lutheran High Schoolunder a mileSchoolSt Thomas The Apostle Schoolunder a mileHighCrystal Lake Central High Schoolunder a mileCollegeMcHenry County College2.8 miSource: USGS National Structures Dataset
Getting aroundAirportChicago O'Hare International Airport ORD28 miInterstateI-909.2 miUS highwayUS 14under a mileAmtrakGlenview, IL GLN29 miRailCrystal LakeMetra1.2 miCoachElgin ILGreyhound12 miTransit18 stops within a milePace Suburban BusSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 60039 ZIP area.
