{"location":{"city":"Aleksandrów Łódzki","voivodeship":"Łódzkie","community":"Gmina Aleksandrów Łódzki","postalCode":"95-070","latitude":51.8211,"longitude":19.3049,"elevation":193},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":8.9,"monthly":[{"month":1,"outsideTemp":-1.5,"heatingDays":31,"degreeDayNum":604,"solarIrradianceKwhM2":24.4,"windSpeedAvg":5.85,"relativeHumidity":84.5,"outsideTempOnHeatingDays":-1.5},{"month":2,"outsideTemp":-0.41,"heatingDays":28,"degreeDayNum":520,"solarIrradianceKwhM2":42.6,"windSpeedAvg":5.74,"relativeHumidity":82.1,"outsideTempOnHeatingDays":-0.41},{"month":3,"outsideTemp":2.95,"heatingDays":31,"degreeDayNum":466,"solarIrradianceKwhM2":86.7,"windSpeedAvg":5.73,"relativeHumidity":76.8,"outsideTempOnHeatingDays":2.95},{"month":4,"outsideTemp":8.67,"heatingDays":29,"degreeDayNum":280,"solarIrradianceKwhM2":129.4,"windSpeedAvg":5.23,"relativeHumidity":70.2,"outsideTempOnHeatingDays":8.53},{"month":5,"outsideTemp":13.8,"heatingDays":26,"degreeDayNum":138,"solarIrradianceKwhM2":160.1,"windSpeedAvg":5.05,"relativeHumidity":69.4,"outsideTempOnHeatingDays":12.75},{"month":6,"outsideTemp":17.29,"heatingDays":17,"degreeDayNum":52,"solarIrradianceKwhM2":164.4,"windSpeedAvg":4.95,"relativeHumidity":68.9,"outsideTempOnHeatingDays":15},{"month":7,"outsideTemp":19.3,"heatingDays":11,"degreeDayNum":21,"solarIrradianceKwhM2":161.9,"windSpeedAvg":4.81,"relativeHumidity":69.7,"outsideTempOnHeatingDays":16.07},{"month":8,"outsideTemp":19.09,"heatingDays":11,"degreeDayNum":23,"solarIrradianceKwhM2":140.5,"windSpeedAvg":4.61,"relativeHumidity":68.8,"outsideTempOnHeatingDays":15.88},{"month":9,"outsideTemp":14.26,"heatingDays":25,"degreeDayNum":118,"solarIrradianceKwhM2":91.5,"windSpeedAvg":5.03,"relativeHumidity":74.7,"outsideTempOnHeatingDays":13.4},{"month":10,"outsideTemp":9.09,"heatingDays":30,"degreeDayNum":276,"solarIrradianceKwhM2":55.7,"windSpeedAvg":5.34,"relativeHumidity":80.4,"outsideTempOnHeatingDays":9.07},{"month":11,"outsideTemp":4.16,"heatingDays":30,"degreeDayNum":415,"solarIrradianceKwhM2":27.3,"windSpeedAvg":5.44,"relativeHumidity":86,"outsideTempOnHeatingDays":4.16},{"month":12,"outsideTemp":0.11,"heatingDays":31,"degreeDayNum":554,"solarIrradianceKwhM2":18.3,"windSpeedAvg":5.7,"relativeHumidity":85.8,"outsideTempOnHeatingDays":0.11}],"groundTemp1m":9.32,"groundTemp2m":9.32,"solarIrradianceKwhM2Year":1103,"windSpeedAvg":5.29,"relativeHumidityAvg":76.4,"suitability":{"score":68,"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":"2026-05-19T12:08:04.674Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}