{"location":{"city":"Kawęczyn","voivodeship":"Łódzkie","community":"Godzianów","postalCode":"96-126","latitude":51.9034,"longitude":20.0105,"elevation":175},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":8.8,"monthly":[{"month":1,"outsideTemp":-1.57,"heatingDays":31,"degreeDayNum":606,"solarIrradianceKwhM2":24,"windSpeedAvg":5.77,"relativeHumidity":84.1,"outsideTempOnHeatingDays":-1.57},{"month":2,"outsideTemp":-0.52,"heatingDays":28,"degreeDayNum":523,"solarIrradianceKwhM2":42,"windSpeedAvg":5.66,"relativeHumidity":82.1,"outsideTempOnHeatingDays":-0.52},{"month":3,"outsideTemp":2.89,"heatingDays":31,"degreeDayNum":468,"solarIrradianceKwhM2":86.5,"windSpeedAvg":5.66,"relativeHumidity":76.6,"outsideTempOnHeatingDays":2.89},{"month":4,"outsideTemp":8.61,"heatingDays":29,"degreeDayNum":282,"solarIrradianceKwhM2":128.8,"windSpeedAvg":5.11,"relativeHumidity":70.8,"outsideTempOnHeatingDays":8.49},{"month":5,"outsideTemp":13.72,"heatingDays":27,"degreeDayNum":139,"solarIrradianceKwhM2":161.9,"windSpeedAvg":4.89,"relativeHumidity":70.6,"outsideTempOnHeatingDays":12.82},{"month":6,"outsideTemp":17.2,"heatingDays":17,"degreeDayNum":53,"solarIrradianceKwhM2":166.2,"windSpeedAvg":4.82,"relativeHumidity":70.3,"outsideTempOnHeatingDays":15.02},{"month":7,"outsideTemp":19.23,"heatingDays":11,"degreeDayNum":21,"solarIrradianceKwhM2":163.2,"windSpeedAvg":4.67,"relativeHumidity":71,"outsideTempOnHeatingDays":16.1},{"month":8,"outsideTemp":18.94,"heatingDays":11,"degreeDayNum":24,"solarIrradianceKwhM2":141.1,"windSpeedAvg":4.5,"relativeHumidity":70.2,"outsideTempOnHeatingDays":15.92},{"month":9,"outsideTemp":14.14,"heatingDays":26,"degreeDayNum":121,"solarIrradianceKwhM2":91.3,"windSpeedAvg":4.91,"relativeHumidity":75.8,"outsideTempOnHeatingDays":13.36},{"month":10,"outsideTemp":9,"heatingDays":30,"degreeDayNum":279,"solarIrradianceKwhM2":55.6,"windSpeedAvg":5.27,"relativeHumidity":80.7,"outsideTempOnHeatingDays":8.98},{"month":11,"outsideTemp":4.08,"heatingDays":30,"degreeDayNum":417,"solarIrradianceKwhM2":26.7,"windSpeedAvg":5.33,"relativeHumidity":85.9,"outsideTempOnHeatingDays":4.08},{"month":12,"outsideTemp":0.07,"heatingDays":31,"degreeDayNum":555,"solarIrradianceKwhM2":17.8,"windSpeedAvg":5.63,"relativeHumidity":85.4,"outsideTempOnHeatingDays":0.07}],"groundTemp1m":9.3,"groundTemp2m":9.3,"solarIrradianceKwhM2Year":1105,"windSpeedAvg":5.19,"relativeHumidityAvg":77,"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 (5.2 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:13:36.332Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}