{
  "name": "Helsinki",
  "type": "city",
  "url": "https://snowingplaces.com/cities/helsinki/",
  "summary": "Finland's capital on the Baltic, with snowy winters that vary a lot from year to year.",
  "location": {
    "country": "Finland",
    "region": "Uusimaa",
    "latitude": 60.17,
    "longitude": 24.94
  },
  "elevationMetres": {
    "city": 7
  },
  "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": 9.2,
      "february": 7.3,
      "march": 4.9,
      "april": 2.5,
      "may": 0.3,
      "june": 0,
      "july": 0,
      "august": 0,
      "september": 0,
      "october": 0.4,
      "november": 3.9,
      "december": 6.6
    },
    "shareOfAnnualSnowfallPercent": {
      "january": 28,
      "february": 21,
      "march": 13,
      "april": 8,
      "may": 1,
      "june": 0,
      "july": 0,
      "august": 0,
      "september": 0,
      "october": 2,
      "november": 10,
      "december": 19
    },
    "averageDailyTemperatureC": {
      "january": {
        "low": -5.8,
        "high": -1
      },
      "february": {
        "low": -5.5,
        "high": -0.6
      },
      "march": {
        "low": -3.6,
        "high": 2.1
      },
      "april": {
        "low": 0.2,
        "high": 7.3
      },
      "may": {
        "low": 5.8,
        "high": 13.8
      },
      "june": {
        "low": 11.5,
        "high": 18.9
      },
      "july": {
        "low": 14.2,
        "high": 21
      },
      "august": {
        "low": 13.5,
        "high": 19.7
      },
      "september": {
        "low": 10.2,
        "high": 15.5
      },
      "october": {
        "low": 4.8,
        "high": 9.3
      },
      "november": {
        "low": 0.9,
        "high": 4.5
      },
      "december": {
        "low": -2.5,
        "high": 1.2
      }
    },
    "wintersAsPercentOfAverage": {
      "2016/17": 95,
      "2017/18": 117,
      "2018/19": 113,
      "2019/20": 49,
      "2020/21": 98,
      "2021/22": 124,
      "2022/23": 155,
      "2023/24": 119,
      "2024/25": 91,
      "2025/26": 38
    },
    "holidays": {
      "christmas": {
        "years": 10,
        "yearsWithSnowOnGround": 4,
        "yearsWithFreshSnow": 7
      },
      "newYear": {
        "years": 10,
        "yearsWithSnowOnGround": 8,
        "yearsWithFreshSnow": 9
      },
      "midFebruary": {
        "years": 10,
        "yearsWithSnowOnGround": 9,
        "yearsWithFreshSnow": 9
      },
      "easter": {
        "years": 10,
        "yearsWithSnowOnGround": 2,
        "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": "Helsinki on Wikidata",
      "url": "https://www.wikidata.org/wiki/Q1757"
    },
    {
      "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."
}