{"location":{"city":"Czaniec","voivodeship":"Śląskie","community":"Porąbka","postalCode":"43-354","latitude":49.8488,"longitude":19.2549,"elevation":316},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":8.5,"monthly":[{"month":1,"outsideTemp":-2.04,"heatingDays":31,"degreeDayNum":621,"solarIrradianceKwhM2":31.5,"windSpeedAvg":4.5,"relativeHumidity":84.1,"outsideTempOnHeatingDays":-2.04},{"month":2,"outsideTemp":-0.86,"heatingDays":28,"degreeDayNum":533,"solarIrradianceKwhM2":50.4,"windSpeedAvg":4.57,"relativeHumidity":82.1,"outsideTempOnHeatingDays":-0.86},{"month":3,"outsideTemp":2.9,"heatingDays":31,"degreeDayNum":468,"solarIrradianceKwhM2":91.5,"windSpeedAvg":4.7,"relativeHumidity":77.7,"outsideTempOnHeatingDays":2.9},{"month":4,"outsideTemp":8.46,"heatingDays":29,"degreeDayNum":286,"solarIrradianceKwhM2":129.8,"windSpeedAvg":4.31,"relativeHumidity":73.5,"outsideTempOnHeatingDays":8.37},{"month":5,"outsideTemp":13.34,"heatingDays":28,"degreeDayNum":148,"solarIrradianceKwhM2":152.5,"windSpeedAvg":4.03,"relativeHumidity":75.9,"outsideTempOnHeatingDays":12.74},{"month":6,"outsideTemp":16.85,"heatingDays":18,"degreeDayNum":58,"solarIrradianceKwhM2":156.2,"windSpeedAvg":3.88,"relativeHumidity":77.3,"outsideTempOnHeatingDays":14.88},{"month":7,"outsideTemp":18.67,"heatingDays":12,"degreeDayNum":27,"solarIrradianceKwhM2":157.4,"windSpeedAvg":3.76,"relativeHumidity":77,"outsideTempOnHeatingDays":15.88},{"month":8,"outsideTemp":18.47,"heatingDays":13,"degreeDayNum":29,"solarIrradianceKwhM2":140,"windSpeedAvg":3.54,"relativeHumidity":77.1,"outsideTempOnHeatingDays":15.86},{"month":9,"outsideTemp":13.82,"heatingDays":27,"degreeDayNum":129,"solarIrradianceKwhM2":93.6,"windSpeedAvg":3.92,"relativeHumidity":80,"outsideTempOnHeatingDays":13.23},{"month":10,"outsideTemp":9.11,"heatingDays":30,"degreeDayNum":275,"solarIrradianceKwhM2":61,"windSpeedAvg":4.12,"relativeHumidity":82.6,"outsideTempOnHeatingDays":9.05},{"month":11,"outsideTemp":4.26,"heatingDays":30,"degreeDayNum":412,"solarIrradianceKwhM2":33.4,"windSpeedAvg":4.18,"relativeHumidity":85.5,"outsideTempOnHeatingDays":4.26},{"month":12,"outsideTemp":-0.43,"heatingDays":31,"degreeDayNum":571,"solarIrradianceKwhM2":24.1,"windSpeedAvg":4.51,"relativeHumidity":85.1,"outsideTempOnHeatingDays":-0.43}],"groundTemp1m":9.3,"groundTemp2m":9.3,"solarIrradianceKwhM2Year":1121.4,"windSpeedAvg":4.17,"relativeHumidityAvg":79.8,"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":"2026-05-19T12:27:40.509Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}