{"location":{"city":"Polanka Wielka","voivodeship":"Małopolskie","community":"Polanka Wielka","postalCode":"32-607","latitude":49.9833,"longitude":19.3101,"elevation":268},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":8.6,"monthly":[{"month":1,"outsideTemp":-2.18,"heatingDays":31,"degreeDayNum":625,"solarIrradianceKwhM2":30.5,"windSpeedAvg":5.2,"relativeHumidity":83.6,"outsideTempOnHeatingDays":-2.18},{"month":2,"outsideTemp":-0.9,"heatingDays":28,"degreeDayNum":534,"solarIrradianceKwhM2":49.4,"windSpeedAvg":5.22,"relativeHumidity":81.3,"outsideTempOnHeatingDays":-0.9},{"month":3,"outsideTemp":2.94,"heatingDays":31,"degreeDayNum":466,"solarIrradianceKwhM2":90.8,"windSpeedAvg":5.31,"relativeHumidity":76.3,"outsideTempOnHeatingDays":2.94},{"month":4,"outsideTemp":8.59,"heatingDays":29,"degreeDayNum":282,"solarIrradianceKwhM2":130.3,"windSpeedAvg":4.73,"relativeHumidity":72.1,"outsideTempOnHeatingDays":8.53},{"month":5,"outsideTemp":13.43,"heatingDays":28,"degreeDayNum":145,"solarIrradianceKwhM2":155,"windSpeedAvg":4.44,"relativeHumidity":74.5,"outsideTempOnHeatingDays":12.8},{"month":6,"outsideTemp":16.95,"heatingDays":18,"degreeDayNum":57,"solarIrradianceKwhM2":158.4,"windSpeedAvg":4.3,"relativeHumidity":75.8,"outsideTempOnHeatingDays":14.93},{"month":7,"outsideTemp":18.84,"heatingDays":12,"degreeDayNum":25,"solarIrradianceKwhM2":159.6,"windSpeedAvg":4.17,"relativeHumidity":75.2,"outsideTempOnHeatingDays":15.97},{"month":8,"outsideTemp":18.62,"heatingDays":13,"degreeDayNum":28,"solarIrradianceKwhM2":141.2,"windSpeedAvg":3.95,"relativeHumidity":75,"outsideTempOnHeatingDays":15.87},{"month":9,"outsideTemp":13.89,"heatingDays":27,"degreeDayNum":127,"solarIrradianceKwhM2":93.8,"windSpeedAvg":4.38,"relativeHumidity":78.3,"outsideTempOnHeatingDays":13.28},{"month":10,"outsideTemp":9.01,"heatingDays":30,"degreeDayNum":278,"solarIrradianceKwhM2":60,"windSpeedAvg":4.59,"relativeHumidity":81.4,"outsideTempOnHeatingDays":8.97},{"month":11,"outsideTemp":4.07,"heatingDays":30,"degreeDayNum":417,"solarIrradianceKwhM2":32.4,"windSpeedAvg":4.7,"relativeHumidity":85.1,"outsideTempOnHeatingDays":4.07},{"month":12,"outsideTemp":-0.49,"heatingDays":31,"degreeDayNum":573,"solarIrradianceKwhM2":23.3,"windSpeedAvg":5.1,"relativeHumidity":84.5,"outsideTempOnHeatingDays":-0.49}],"groundTemp1m":9.09,"groundTemp2m":9.09,"solarIrradianceKwhM2Year":1124.8,"windSpeedAvg":4.68,"relativeHumidityAvg":78.6,"suitability":{"score":64,"rating":"fair","color":"yellow","estimatedScop":4.1,"notes":["Wysokie nasłonecznienie — bardzo dobre warunki dla hybrydy pompa ciepła + PV."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:17:18.733Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}