{"location":{"city":"Rzeniszów","voivodeship":"Śląskie","community":"Gmina Koziegłowy","postalCode":"42-350","latitude":50.5725,"longitude":19.1608,"elevation":334},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":8.5,"monthly":[{"month":1,"outsideTemp":-2.16,"heatingDays":31,"degreeDayNum":624,"solarIrradianceKwhM2":28.7,"windSpeedAvg":6.1,"relativeHumidity":85.2,"outsideTempOnHeatingDays":-2.16},{"month":2,"outsideTemp":-1.04,"heatingDays":28,"degreeDayNum":538,"solarIrradianceKwhM2":48,"windSpeedAvg":5.99,"relativeHumidity":82.9,"outsideTempOnHeatingDays":-1.04},{"month":3,"outsideTemp":2.7,"heatingDays":31,"degreeDayNum":474,"solarIrradianceKwhM2":90,"windSpeedAvg":5.98,"relativeHumidity":76.6,"outsideTempOnHeatingDays":2.7},{"month":4,"outsideTemp":8.45,"heatingDays":29,"degreeDayNum":286,"solarIrradianceKwhM2":131.1,"windSpeedAvg":5.34,"relativeHumidity":70.2,"outsideTempOnHeatingDays":8.34},{"month":5,"outsideTemp":13.39,"heatingDays":27,"degreeDayNum":148,"solarIrradianceKwhM2":157.5,"windSpeedAvg":5.12,"relativeHumidity":71.3,"outsideTempOnHeatingDays":12.57},{"month":6,"outsideTemp":16.89,"heatingDays":18,"degreeDayNum":60,"solarIrradianceKwhM2":160.6,"windSpeedAvg":4.94,"relativeHumidity":71.6,"outsideTempOnHeatingDays":14.78},{"month":7,"outsideTemp":18.8,"heatingDays":13,"degreeDayNum":28,"solarIrradianceKwhM2":161.2,"windSpeedAvg":4.79,"relativeHumidity":71.7,"outsideTempOnHeatingDays":15.83},{"month":8,"outsideTemp":18.65,"heatingDays":13,"degreeDayNum":30,"solarIrradianceKwhM2":141.9,"windSpeedAvg":4.57,"relativeHumidity":70.8,"outsideTempOnHeatingDays":15.7},{"month":9,"outsideTemp":13.87,"heatingDays":26,"degreeDayNum":129,"solarIrradianceKwhM2":93.4,"windSpeedAvg":5.05,"relativeHumidity":75.7,"outsideTempOnHeatingDays":13.15},{"month":10,"outsideTemp":8.86,"heatingDays":30,"degreeDayNum":283,"solarIrradianceKwhM2":58.6,"windSpeedAvg":5.39,"relativeHumidity":80.7,"outsideTempOnHeatingDays":8.83},{"month":11,"outsideTemp":3.93,"heatingDays":30,"degreeDayNum":422,"solarIrradianceKwhM2":30.8,"windSpeedAvg":5.52,"relativeHumidity":85.7,"outsideTempOnHeatingDays":3.93},{"month":12,"outsideTemp":-0.53,"heatingDays":31,"degreeDayNum":574,"solarIrradianceKwhM2":22,"windSpeedAvg":6.03,"relativeHumidity":85.8,"outsideTempOnHeatingDays":-0.53}],"groundTemp1m":9,"groundTemp2m":9,"solarIrradianceKwhM2Year":1123.7,"windSpeedAvg":5.4,"relativeHumidityAvg":77.4,"suitability":{"score":61,"rating":"fair","color":"yellow","estimatedScop":4.1,"notes":["Wysokie nasłonecznienie — bardzo dobre warunki dla hybrydy pompa ciepła + PV.","Wysoka średnia prędkość wiatru (5.4 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:28:04.904Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}