{"location":{"city":"Kolonia Ręczno","voivodeship":"Łódzkie","community":"Gmina Ręczno","postalCode":"97-510","latitude":51.1831,"longitude":19.8664,"elevation":208},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":8.9,"monthly":[{"month":1,"outsideTemp":-1.76,"heatingDays":31,"degreeDayNum":612,"solarIrradianceKwhM2":26.4,"windSpeedAvg":5.99,"relativeHumidity":84.4,"outsideTempOnHeatingDays":-1.76},{"month":2,"outsideTemp":-0.63,"heatingDays":28,"degreeDayNum":526,"solarIrradianceKwhM2":44.8,"windSpeedAvg":5.91,"relativeHumidity":82.2,"outsideTempOnHeatingDays":-0.63},{"month":3,"outsideTemp":2.96,"heatingDays":31,"degreeDayNum":466,"solarIrradianceKwhM2":88.6,"windSpeedAvg":5.92,"relativeHumidity":76.5,"outsideTempOnHeatingDays":2.96},{"month":4,"outsideTemp":8.77,"heatingDays":29,"degreeDayNum":277,"solarIrradianceKwhM2":129.4,"windSpeedAvg":5.35,"relativeHumidity":70.3,"outsideTempOnHeatingDays":8.64},{"month":5,"outsideTemp":13.9,"heatingDays":26,"degreeDayNum":135,"solarIrradianceKwhM2":159.3,"windSpeedAvg":5.17,"relativeHumidity":70.3,"outsideTempOnHeatingDays":12.84},{"month":6,"outsideTemp":17.44,"heatingDays":17,"degreeDayNum":50,"solarIrradianceKwhM2":163.4,"windSpeedAvg":5.03,"relativeHumidity":69.8,"outsideTempOnHeatingDays":15.09},{"month":7,"outsideTemp":19.42,"heatingDays":10,"degreeDayNum":20,"solarIrradianceKwhM2":161.1,"windSpeedAvg":4.88,"relativeHumidity":70.2,"outsideTempOnHeatingDays":16.08},{"month":8,"outsideTemp":19.15,"heatingDays":11,"degreeDayNum":23,"solarIrradianceKwhM2":140.5,"windSpeedAvg":4.65,"relativeHumidity":69.5,"outsideTempOnHeatingDays":15.86},{"month":9,"outsideTemp":14.26,"heatingDays":25,"degreeDayNum":119,"solarIrradianceKwhM2":92.3,"windSpeedAvg":5.11,"relativeHumidity":75.3,"outsideTempOnHeatingDays":13.35},{"month":10,"outsideTemp":9.07,"heatingDays":31,"degreeDayNum":276,"solarIrradianceKwhM2":56.8,"windSpeedAvg":5.42,"relativeHumidity":80.6,"outsideTempOnHeatingDays":9.06},{"month":11,"outsideTemp":4.09,"heatingDays":30,"degreeDayNum":417,"solarIrradianceKwhM2":28.6,"windSpeedAvg":5.48,"relativeHumidity":85.8,"outsideTempOnHeatingDays":4.09},{"month":12,"outsideTemp":-0.06,"heatingDays":31,"degreeDayNum":559,"solarIrradianceKwhM2":19.7,"windSpeedAvg":5.86,"relativeHumidity":85.4,"outsideTempOnHeatingDays":-0.06}],"groundTemp1m":9.44,"groundTemp2m":9.44,"solarIrradianceKwhM2Year":1110.9,"windSpeedAvg":5.4,"relativeHumidityAvg":76.7,"suitability":{"score":67,"rating":"good","color":"lime","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":"2026-05-19T12:12:58.726Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}