{"location":{"city":"Grojec","voivodeship":"Małopolskie","community":"Alwernia","postalCode":"32-566","latitude":50.0867,"longitude":19.5639,"elevation":325},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":8.3,"monthly":[{"month":1,"outsideTemp":-2.4,"heatingDays":31,"degreeDayNum":632,"solarIrradianceKwhM2":30.4,"windSpeedAvg":5.05,"relativeHumidity":84.1,"outsideTempOnHeatingDays":-2.4},{"month":2,"outsideTemp":-1.06,"heatingDays":28,"degreeDayNum":538,"solarIrradianceKwhM2":49,"windSpeedAvg":5.08,"relativeHumidity":81.4,"outsideTempOnHeatingDays":-1.06},{"month":3,"outsideTemp":2.75,"heatingDays":31,"degreeDayNum":472,"solarIrradianceKwhM2":90.8,"windSpeedAvg":5.22,"relativeHumidity":76,"outsideTempOnHeatingDays":2.75},{"month":4,"outsideTemp":8.39,"heatingDays":29,"degreeDayNum":288,"solarIrradianceKwhM2":130.2,"windSpeedAvg":4.65,"relativeHumidity":71.5,"outsideTempOnHeatingDays":8.32},{"month":5,"outsideTemp":13.28,"heatingDays":27,"degreeDayNum":150,"solarIrradianceKwhM2":155.1,"windSpeedAvg":4.39,"relativeHumidity":73.6,"outsideTempOnHeatingDays":12.61},{"month":6,"outsideTemp":16.78,"heatingDays":19,"degreeDayNum":60,"solarIrradianceKwhM2":158.5,"windSpeedAvg":4.28,"relativeHumidity":74.7,"outsideTempOnHeatingDays":14.82},{"month":7,"outsideTemp":18.69,"heatingDays":13,"degreeDayNum":27,"solarIrradianceKwhM2":159,"windSpeedAvg":4.13,"relativeHumidity":74.1,"outsideTempOnHeatingDays":15.86},{"month":8,"outsideTemp":18.48,"heatingDays":14,"degreeDayNum":30,"solarIrradianceKwhM2":141,"windSpeedAvg":3.91,"relativeHumidity":73.6,"outsideTempOnHeatingDays":15.84},{"month":9,"outsideTemp":13.69,"heatingDays":27,"degreeDayNum":133,"solarIrradianceKwhM2":94,"windSpeedAvg":4.31,"relativeHumidity":77.4,"outsideTempOnHeatingDays":13.13},{"month":10,"outsideTemp":8.69,"heatingDays":31,"degreeDayNum":288,"solarIrradianceKwhM2":60.4,"windSpeedAvg":4.46,"relativeHumidity":81.4,"outsideTempOnHeatingDays":8.68},{"month":11,"outsideTemp":3.65,"heatingDays":30,"degreeDayNum":430,"solarIrradianceKwhM2":32.5,"windSpeedAvg":4.53,"relativeHumidity":85.6,"outsideTempOnHeatingDays":3.65},{"month":12,"outsideTemp":-0.76,"heatingDays":31,"degreeDayNum":581,"solarIrradianceKwhM2":23.3,"windSpeedAvg":4.91,"relativeHumidity":84.8,"outsideTempOnHeatingDays":-0.76}],"groundTemp1m":8.86,"groundTemp2m":8.86,"solarIrradianceKwhM2Year":1124.3,"windSpeedAvg":4.58,"relativeHumidityAvg":78.2,"suitability":{"score":60,"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":"2026-05-19T12:16:49.971Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}