{"location":{"city":"Świątniczki","voivodeship":"Wielkopolskie","community":"Gmina Kórnik","postalCode":"61-324","latitude":52.3294,"longitude":16.9981,"elevation":81},"climateZone":2,"standardOutsideTemp":-18,"annualMeanTemp":9.5,"monthly":[{"month":1,"outsideTemp":-0.37,"heatingDays":31,"degreeDayNum":569,"solarIrradianceKwhM2":22.6,"windSpeedAvg":5.55,"relativeHumidity":83.9,"outsideTempOnHeatingDays":-0.37},{"month":2,"outsideTemp":0.61,"heatingDays":28,"degreeDayNum":491,"solarIrradianceKwhM2":41.2,"windSpeedAvg":5.5,"relativeHumidity":80.9,"outsideTempOnHeatingDays":0.61},{"month":3,"outsideTemp":3.75,"heatingDays":31,"degreeDayNum":441,"solarIrradianceKwhM2":83.7,"windSpeedAvg":5.46,"relativeHumidity":76.7,"outsideTempOnHeatingDays":3.75},{"month":4,"outsideTemp":9.1,"heatingDays":29,"degreeDayNum":267,"solarIrradianceKwhM2":131,"windSpeedAvg":5.06,"relativeHumidity":70.3,"outsideTempOnHeatingDays":8.91},{"month":5,"outsideTemp":14.03,"heatingDays":26,"degreeDayNum":131,"solarIrradianceKwhM2":160.5,"windSpeedAvg":4.86,"relativeHumidity":68.7,"outsideTempOnHeatingDays":13.01},{"month":6,"outsideTemp":17.54,"heatingDays":17,"degreeDayNum":47,"solarIrradianceKwhM2":164.2,"windSpeedAvg":4.84,"relativeHumidity":67.7,"outsideTempOnHeatingDays":15.22},{"month":7,"outsideTemp":19.55,"heatingDays":10,"degreeDayNum":18,"solarIrradianceKwhM2":162.3,"windSpeedAvg":4.72,"relativeHumidity":68.8,"outsideTempOnHeatingDays":16.22},{"month":8,"outsideTemp":19.33,"heatingDays":10,"degreeDayNum":20,"solarIrradianceKwhM2":139.8,"windSpeedAvg":4.51,"relativeHumidity":68.8,"outsideTempOnHeatingDays":16.12},{"month":9,"outsideTemp":14.71,"heatingDays":25,"degreeDayNum":106,"solarIrradianceKwhM2":91.4,"windSpeedAvg":4.83,"relativeHumidity":74.5,"outsideTempOnHeatingDays":13.82},{"month":10,"outsideTemp":9.63,"heatingDays":30,"degreeDayNum":259,"solarIrradianceKwhM2":54.4,"windSpeedAvg":5.05,"relativeHumidity":80.4,"outsideTempOnHeatingDays":9.6},{"month":11,"outsideTemp":4.63,"heatingDays":30,"degreeDayNum":401,"solarIrradianceKwhM2":25.6,"windSpeedAvg":5.11,"relativeHumidity":86.2,"outsideTempOnHeatingDays":4.63},{"month":12,"outsideTemp":0.99,"heatingDays":31,"degreeDayNum":527,"solarIrradianceKwhM2":17.2,"windSpeedAvg":5.38,"relativeHumidity":85.7,"outsideTempOnHeatingDays":0.99}],"groundTemp1m":9.72,"groundTemp2m":9.72,"solarIrradianceKwhM2Year":1093.7,"windSpeedAvg":5.07,"relativeHumidityAvg":76.1,"suitability":{"score":76,"rating":"good","color":"lime","estimatedScop":4.2,"notes":["Wysokie nasłonecznienie — bardzo dobre warunki dla hybrydy pompa ciepła + PV.","Wysoka średnia prędkość wiatru (5.1 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:33:37.937Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}