{"location":{"city":"Śleszyn","voivodeship":"Łódzkie","community":"Gmina Żychlin","postalCode":"99-321","latitude":52.2061,"longitude":19.6963,"elevation":104},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":9.1,"monthly":[{"month":1,"outsideTemp":-1.22,"heatingDays":31,"degreeDayNum":595,"solarIrradianceKwhM2":23.2,"windSpeedAvg":5.71,"relativeHumidity":83.6,"outsideTempOnHeatingDays":-1.22},{"month":2,"outsideTemp":-0.13,"heatingDays":28,"degreeDayNum":512,"solarIrradianceKwhM2":41,"windSpeedAvg":5.63,"relativeHumidity":81.1,"outsideTempOnHeatingDays":-0.13},{"month":3,"outsideTemp":3.15,"heatingDays":31,"degreeDayNum":460,"solarIrradianceKwhM2":85.2,"windSpeedAvg":5.63,"relativeHumidity":76.2,"outsideTempOnHeatingDays":3.15},{"month":4,"outsideTemp":8.79,"heatingDays":29,"degreeDayNum":276,"solarIrradianceKwhM2":128.8,"windSpeedAvg":5.1,"relativeHumidity":70.6,"outsideTempOnHeatingDays":8.65},{"month":5,"outsideTemp":13.88,"heatingDays":26,"degreeDayNum":135,"solarIrradianceKwhM2":161.7,"windSpeedAvg":4.9,"relativeHumidity":70.3,"outsideTempOnHeatingDays":12.91},{"month":6,"outsideTemp":17.36,"heatingDays":17,"degreeDayNum":50,"solarIrradianceKwhM2":165.9,"windSpeedAvg":4.82,"relativeHumidity":69.9,"outsideTempOnHeatingDays":15.16},{"month":7,"outsideTemp":19.45,"heatingDays":10,"degreeDayNum":18,"solarIrradianceKwhM2":162.9,"windSpeedAvg":4.69,"relativeHumidity":70.5,"outsideTempOnHeatingDays":16.2},{"month":8,"outsideTemp":19.15,"heatingDays":10,"degreeDayNum":21,"solarIrradianceKwhM2":140.6,"windSpeedAvg":4.51,"relativeHumidity":69.7,"outsideTempOnHeatingDays":16.04},{"month":9,"outsideTemp":14.4,"heatingDays":25,"degreeDayNum":114,"solarIrradianceKwhM2":90.6,"windSpeedAvg":4.92,"relativeHumidity":75.2,"outsideTempOnHeatingDays":13.58},{"month":10,"outsideTemp":9.24,"heatingDays":30,"degreeDayNum":271,"solarIrradianceKwhM2":54.8,"windSpeedAvg":5.24,"relativeHumidity":80.2,"outsideTempOnHeatingDays":9.21},{"month":11,"outsideTemp":4.35,"heatingDays":30,"degreeDayNum":409,"solarIrradianceKwhM2":26,"windSpeedAvg":5.29,"relativeHumidity":85.4,"outsideTempOnHeatingDays":4.35},{"month":12,"outsideTemp":0.4,"heatingDays":31,"degreeDayNum":545,"solarIrradianceKwhM2":17.1,"windSpeedAvg":5.54,"relativeHumidity":85,"outsideTempOnHeatingDays":0.4}],"groundTemp1m":9.49,"groundTemp2m":9.49,"solarIrradianceKwhM2Year":1097.6,"windSpeedAvg":5.16,"relativeHumidityAvg":76.5,"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":"2026-05-19T12:12:08.004Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}