{"location":{"city":"Wola Bałucka","voivodeship":"Łódzkie","community":"Gmina Łask","postalCode":"98-100","latitude":51.6179,"longitude":19.0663,"elevation":173},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":9.1,"monthly":[{"month":1,"outsideTemp":-1.31,"heatingDays":31,"degreeDayNum":598,"solarIrradianceKwhM2":25,"windSpeedAvg":5.84,"relativeHumidity":84.4,"outsideTempOnHeatingDays":-1.31},{"month":2,"outsideTemp":-0.23,"heatingDays":28,"degreeDayNum":515,"solarIrradianceKwhM2":43.4,"windSpeedAvg":5.73,"relativeHumidity":81.9,"outsideTempOnHeatingDays":-0.23},{"month":3,"outsideTemp":3.14,"heatingDays":31,"degreeDayNum":460,"solarIrradianceKwhM2":87.1,"windSpeedAvg":5.73,"relativeHumidity":76.9,"outsideTempOnHeatingDays":3.14},{"month":4,"outsideTemp":8.84,"heatingDays":29,"degreeDayNum":275,"solarIrradianceKwhM2":129.9,"windSpeedAvg":5.25,"relativeHumidity":70.2,"outsideTempOnHeatingDays":8.7},{"month":5,"outsideTemp":13.99,"heatingDays":26,"degreeDayNum":133,"solarIrradianceKwhM2":159.6,"windSpeedAvg":5.1,"relativeHumidity":69.2,"outsideTempOnHeatingDays":12.88},{"month":6,"outsideTemp":17.5,"heatingDays":16,"degreeDayNum":49,"solarIrradianceKwhM2":163.3,"windSpeedAvg":4.97,"relativeHumidity":68.5,"outsideTempOnHeatingDays":15.06},{"month":7,"outsideTemp":19.47,"heatingDays":10,"degreeDayNum":20,"solarIrradianceKwhM2":161.5,"windSpeedAvg":4.85,"relativeHumidity":69.4,"outsideTempOnHeatingDays":16.12},{"month":8,"outsideTemp":19.27,"heatingDays":10,"degreeDayNum":22,"solarIrradianceKwhM2":140.6,"windSpeedAvg":4.61,"relativeHumidity":68.5,"outsideTempOnHeatingDays":15.92},{"month":9,"outsideTemp":14.44,"heatingDays":25,"degreeDayNum":114,"solarIrradianceKwhM2":92.1,"windSpeedAvg":5,"relativeHumidity":74.5,"outsideTempOnHeatingDays":13.48},{"month":10,"outsideTemp":9.25,"heatingDays":30,"degreeDayNum":271,"solarIrradianceKwhM2":56.4,"windSpeedAvg":5.3,"relativeHumidity":80.4,"outsideTempOnHeatingDays":9.22},{"month":11,"outsideTemp":4.35,"heatingDays":30,"degreeDayNum":409,"solarIrradianceKwhM2":28,"windSpeedAvg":5.41,"relativeHumidity":85.9,"outsideTempOnHeatingDays":4.35},{"month":12,"outsideTemp":0.27,"heatingDays":31,"degreeDayNum":549,"solarIrradianceKwhM2":18.9,"windSpeedAvg":5.68,"relativeHumidity":85.7,"outsideTempOnHeatingDays":0.27}],"groundTemp1m":9.44,"groundTemp2m":9.44,"solarIrradianceKwhM2Year":1105.7,"windSpeedAvg":5.29,"relativeHumidityAvg":76.3,"suitability":{"score":70,"rating":"good","color":"lime","estimatedScop":4.1,"notes":["Wysokie nasłonecznienie — bardzo dobre warunki dla hybrydy pompa ciepła + PV.","Wysoka średnia prędkość wiatru (5.3 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:12:13.924Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}