{"location":{"city":"Krępa","voivodeship":"Łódzkie","community":"Domaniewice","postalCode":"99-434","latitude":52.0218,"longitude":19.8385,"elevation":112},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":9.2,"monthly":[{"month":1,"outsideTemp":-1.22,"heatingDays":31,"degreeDayNum":595,"solarIrradianceKwhM2":24,"windSpeedAvg":5.81,"relativeHumidity":83.8,"outsideTempOnHeatingDays":-1.22},{"month":2,"outsideTemp":-0.15,"heatingDays":28,"degreeDayNum":512,"solarIrradianceKwhM2":42,"windSpeedAvg":5.71,"relativeHumidity":81.6,"outsideTempOnHeatingDays":-0.15},{"month":3,"outsideTemp":3.23,"heatingDays":31,"degreeDayNum":457,"solarIrradianceKwhM2":86.3,"windSpeedAvg":5.7,"relativeHumidity":76.4,"outsideTempOnHeatingDays":3.23},{"month":4,"outsideTemp":8.94,"heatingDays":29,"degreeDayNum":272,"solarIrradianceKwhM2":128.9,"windSpeedAvg":5.16,"relativeHumidity":70.6,"outsideTempOnHeatingDays":8.8},{"month":5,"outsideTemp":14.06,"heatingDays":26,"degreeDayNum":131,"solarIrradianceKwhM2":161.4,"windSpeedAvg":4.93,"relativeHumidity":70.2,"outsideTempOnHeatingDays":12.99},{"month":6,"outsideTemp":17.56,"heatingDays":16,"degreeDayNum":47,"solarIrradianceKwhM2":165.8,"windSpeedAvg":4.86,"relativeHumidity":69.7,"outsideTempOnHeatingDays":15.2},{"month":7,"outsideTemp":19.61,"heatingDays":10,"degreeDayNum":17,"solarIrradianceKwhM2":162.7,"windSpeedAvg":4.72,"relativeHumidity":70.4,"outsideTempOnHeatingDays":16.25},{"month":8,"outsideTemp":19.31,"heatingDays":10,"degreeDayNum":20,"solarIrradianceKwhM2":140.8,"windSpeedAvg":4.54,"relativeHumidity":69.7,"outsideTempOnHeatingDays":16},{"month":9,"outsideTemp":14.51,"heatingDays":25,"degreeDayNum":111,"solarIrradianceKwhM2":91.1,"windSpeedAvg":4.95,"relativeHumidity":75.3,"outsideTempOnHeatingDays":13.63},{"month":10,"outsideTemp":9.34,"heatingDays":30,"degreeDayNum":268,"solarIrradianceKwhM2":55.4,"windSpeedAvg":5.31,"relativeHumidity":80.3,"outsideTempOnHeatingDays":9.29},{"month":11,"outsideTemp":4.41,"heatingDays":30,"degreeDayNum":407,"solarIrradianceKwhM2":26.7,"windSpeedAvg":5.37,"relativeHumidity":85.5,"outsideTempOnHeatingDays":4.41},{"month":12,"outsideTemp":0.41,"heatingDays":31,"degreeDayNum":545,"solarIrradianceKwhM2":17.8,"windSpeedAvg":5.67,"relativeHumidity":85.2,"outsideTempOnHeatingDays":0.41}],"groundTemp1m":9.49,"groundTemp2m":9.49,"solarIrradianceKwhM2Year":1102.8,"windSpeedAvg":5.23,"relativeHumidityAvg":76.6,"suitability":{"score":71,"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":"2026-05-19T12:12:28.930Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}