{"location":{"city":"Henin","voivodeship":"Lubelskie","community":"Poniatowa","postalCode":"24-320","latitude":51.2014,"longitude":22.0736,"elevation":212},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":8.8,"monthly":[{"month":1,"outsideTemp":-2.11,"heatingDays":31,"degreeDayNum":623,"solarIrradianceKwhM2":25,"windSpeedAvg":5.02,"relativeHumidity":83.8,"outsideTempOnHeatingDays":-2.11},{"month":2,"outsideTemp":-0.97,"heatingDays":28,"degreeDayNum":536,"solarIrradianceKwhM2":43,"windSpeedAvg":4.99,"relativeHumidity":81.7,"outsideTempOnHeatingDays":-0.97},{"month":3,"outsideTemp":2.72,"heatingDays":31,"degreeDayNum":473,"solarIrradianceKwhM2":87,"windSpeedAvg":5.1,"relativeHumidity":75.6,"outsideTempOnHeatingDays":2.72},{"month":4,"outsideTemp":8.84,"heatingDays":29,"degreeDayNum":275,"solarIrradianceKwhM2":128.7,"windSpeedAvg":4.66,"relativeHumidity":69.5,"outsideTempOnHeatingDays":8.7},{"month":5,"outsideTemp":14.13,"heatingDays":26,"degreeDayNum":128,"solarIrradianceKwhM2":160.6,"windSpeedAvg":4.48,"relativeHumidity":69.9,"outsideTempOnHeatingDays":13.04},{"month":6,"outsideTemp":17.57,"heatingDays":16,"degreeDayNum":46,"solarIrradianceKwhM2":166.2,"windSpeedAvg":4.32,"relativeHumidity":70.6,"outsideTempOnHeatingDays":15.2},{"month":7,"outsideTemp":19.54,"heatingDays":10,"degreeDayNum":18,"solarIrradianceKwhM2":163.1,"windSpeedAvg":4.17,"relativeHumidity":71.1,"outsideTempOnHeatingDays":16.23},{"month":8,"outsideTemp":19.12,"heatingDays":11,"degreeDayNum":22,"solarIrradianceKwhM2":142.3,"windSpeedAvg":4.01,"relativeHumidity":70.6,"outsideTempOnHeatingDays":15.96},{"month":9,"outsideTemp":14.2,"heatingDays":26,"degreeDayNum":120,"solarIrradianceKwhM2":92.6,"windSpeedAvg":4.38,"relativeHumidity":75.7,"outsideTempOnHeatingDays":13.36},{"month":10,"outsideTemp":8.84,"heatingDays":30,"degreeDayNum":283,"solarIrradianceKwhM2":57.8,"windSpeedAvg":4.66,"relativeHumidity":80.3,"outsideTempOnHeatingDays":8.82},{"month":11,"outsideTemp":3.9,"heatingDays":30,"degreeDayNum":423,"solarIrradianceKwhM2":28.4,"windSpeedAvg":4.77,"relativeHumidity":84.6,"outsideTempOnHeatingDays":3.9},{"month":12,"outsideTemp":-0.45,"heatingDays":31,"degreeDayNum":571,"solarIrradianceKwhM2":18.6,"windSpeedAvg":4.91,"relativeHumidity":85,"outsideTempOnHeatingDays":-0.45}],"groundTemp1m":9.26,"groundTemp2m":9.26,"solarIrradianceKwhM2Year":1113.2,"windSpeedAvg":4.63,"relativeHumidityAvg":76.5,"suitability":{"score":66,"rating":"good","color":"lime","estimatedScop":4.1,"notes":["Wysokie nasłonecznienie — bardzo dobre warunki dla hybrydy pompa ciepła + PV."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:15:24.193Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}