{
  "name": "Chicago",
  "type": "city",
  "url": "https://snowingplaces.com/cities/chicago/",
  "summary": "Great Lakes city with cold, windy winters and regular snow off the plains and Lake Michigan.",
  "location": {
    "country": "United States",
    "region": "Illinois",
    "latitude": 41.88,
    "longitude": -87.63
  },
  "elevationMetres": {
    "city": 265
  },
  "factsVerified": false,
  "forecast": {
    "status": "out of season",
    "resumes": "October"
  },
  "snowRecord": {
    "metric": "average days per month with at least 1 cm of snowfall",
    "period": "2016–2025",
    "source": "ERA5 reanalysis via Open-Meteo",
    "elevation": "city centre",
    "daysPerMonth": {
      "january": 5.2,
      "february": 4.5,
      "march": 2.1,
      "april": 1.6,
      "may": 0,
      "june": 0,
      "july": 0,
      "august": 0,
      "september": 0,
      "october": 0.3,
      "november": 1.7,
      "december": 2.8
    },
    "shareOfAnnualSnowfallPercent": {
      "january": 29,
      "february": 23,
      "march": 13,
      "april": 9,
      "may": 0,
      "june": 0,
      "july": 0,
      "august": 0,
      "september": 0,
      "october": 1,
      "november": 11,
      "december": 14
    },
    "averageDailyTemperatureC": {
      "january": {
        "low": -6.3,
        "high": 0.5
      },
      "february": {
        "low": -5.3,
        "high": 2.9
      },
      "march": {
        "low": 0.3,
        "high": 8.3
      },
      "april": {
        "low": 4.5,
        "high": 13.4
      },
      "may": {
        "low": 10.5,
        "high": 19.2
      },
      "june": {
        "low": 16.9,
        "high": 26
      },
      "july": {
        "low": 19.7,
        "high": 27.6
      },
      "august": {
        "low": 19.2,
        "high": 26.9
      },
      "september": {
        "low": 16.5,
        "high": 24.2
      },
      "october": {
        "low": 9.8,
        "high": 17.1
      },
      "november": {
        "low": 2.3,
        "high": 9.2
      },
      "december": {
        "low": -3,
        "high": 3.6
      }
    },
    "wintersAsPercentOfAverage": {
      "2016/17": 66,
      "2017/18": 105,
      "2018/19": 161,
      "2019/20": 117,
      "2020/21": 127,
      "2021/22": 105,
      "2022/23": 80,
      "2023/24": 78,
      "2024/25": 63,
      "2025/26": 98
    },
    "holidays": {
      "christmas": {
        "years": 10,
        "yearsWithSnowOnGround": 3,
        "yearsWithFreshSnow": 4
      },
      "newYear": {
        "years": 10,
        "yearsWithSnowOnGround": 3,
        "yearsWithFreshSnow": 7
      },
      "midFebruary": {
        "years": 10,
        "yearsWithSnowOnGround": 7,
        "yearsWithFreshSnow": 9
      },
      "easter": {
        "years": 10,
        "yearsWithSnowOnGround": 0,
        "yearsWithFreshSnow": 1
      },
      "midJuly": {
        "years": 10,
        "yearsWithSnowOnGround": 0,
        "yearsWithFreshSnow": 0
      }
    },
    "note": "Absolute snowfall and depth are not published: ERA5 underestimates them in mountain terrain."
  },
  "sources": [
    {
      "label": "Chicago on Wikidata",
      "url": "https://www.wikidata.org/wiki/Q1297"
    },
    {
      "label": "Elevation from the Open-Meteo terrain model at the city centre coordinates",
      "url": "https://open-meteo.com/en/docs/elevation-api"
    }
  ],
  "methodology": "https://snowingplaces.com/methodology/",
  "attribution": "snowingplaces.com. Weather data by Open-Meteo.com."
}