{"location":{"city":"Książenice","voivodeship":"Śląskie","community":"Czerwionka-Leszczyny","postalCode":"44-213","latitude":50.1565,"longitude":18.6028,"elevation":276},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":9,"monthly":[{"month":1,"outsideTemp":-1.6,"heatingDays":31,"degreeDayNum":607,"solarIrradianceKwhM2":29.5,"windSpeedAvg":5.79,"relativeHumidity":83.1,"outsideTempOnHeatingDays":-1.6},{"month":2,"outsideTemp":-0.34,"heatingDays":28,"degreeDayNum":518,"solarIrradianceKwhM2":48.3,"windSpeedAvg":5.72,"relativeHumidity":80.3,"outsideTempOnHeatingDays":-0.34},{"month":3,"outsideTemp":3.46,"heatingDays":31,"degreeDayNum":450,"solarIrradianceKwhM2":89.7,"windSpeedAvg":5.71,"relativeHumidity":74.6,"outsideTempOnHeatingDays":3.46},{"month":4,"outsideTemp":9.03,"heatingDays":29,"degreeDayNum":269,"solarIrradianceKwhM2":131.5,"windSpeedAvg":5.19,"relativeHumidity":69.6,"outsideTempOnHeatingDays":8.92},{"month":5,"outsideTemp":13.78,"heatingDays":27,"degreeDayNum":136,"solarIrradianceKwhM2":156.4,"windSpeedAvg":4.94,"relativeHumidity":71.8,"outsideTempOnHeatingDays":12.95},{"month":6,"outsideTemp":17.31,"heatingDays":17,"degreeDayNum":51,"solarIrradianceKwhM2":160.4,"windSpeedAvg":4.74,"relativeHumidity":72.3,"outsideTempOnHeatingDays":15.07},{"month":7,"outsideTemp":19.27,"heatingDays":11,"degreeDayNum":21,"solarIrradianceKwhM2":162.7,"windSpeedAvg":4.61,"relativeHumidity":71.7,"outsideTempOnHeatingDays":16.07},{"month":8,"outsideTemp":19.16,"heatingDays":11,"degreeDayNum":23,"solarIrradianceKwhM2":142.6,"windSpeedAvg":4.38,"relativeHumidity":70.8,"outsideTempOnHeatingDays":15.94},{"month":9,"outsideTemp":14.42,"heatingDays":25,"degreeDayNum":113,"solarIrradianceKwhM2":94.6,"windSpeedAvg":4.86,"relativeHumidity":74.9,"outsideTempOnHeatingDays":13.59},{"month":10,"outsideTemp":9.49,"heatingDays":30,"degreeDayNum":264,"solarIrradianceKwhM2":59.6,"windSpeedAvg":5.22,"relativeHumidity":79.2,"outsideTempOnHeatingDays":9.42},{"month":11,"outsideTemp":4.56,"heatingDays":30,"degreeDayNum":403,"solarIrradianceKwhM2":31.7,"windSpeedAvg":5.37,"relativeHumidity":83.6,"outsideTempOnHeatingDays":4.56},{"month":12,"outsideTemp":-0.06,"heatingDays":31,"degreeDayNum":559,"solarIrradianceKwhM2":22.7,"windSpeedAvg":5.75,"relativeHumidity":83.9,"outsideTempOnHeatingDays":-0.06}],"groundTemp1m":9.51,"groundTemp2m":9.51,"solarIrradianceKwhM2Year":1129.6,"windSpeedAvg":5.19,"relativeHumidityAvg":76.3,"suitability":{"score":68,"rating":"good","color":"lime","estimatedScop":4.1,"notes":["Wysokie nasłonecznienie - bardzo dobre warunki dla hybrydy pompa ciepła + PV.","Wysoka średnia prędkość wiatru (5.2 m/s) - większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991-2020)","fetchedAt":"2026-05-19T12:09:06.160Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}