{"location":{"city":"Barkowice","voivodeship":"Łódzkie","community":"Gmina Sulejów","postalCode":"97-330","latitude":51.3907,"longitude":19.843,"elevation":173},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":9,"monthly":[{"month":1,"outsideTemp":-1.57,"heatingDays":31,"degreeDayNum":606,"solarIrradianceKwhM2":25.5,"windSpeedAvg":5.92,"relativeHumidity":84.5,"outsideTempOnHeatingDays":-1.57},{"month":2,"outsideTemp":-0.48,"heatingDays":28,"degreeDayNum":522,"solarIrradianceKwhM2":44,"windSpeedAvg":5.83,"relativeHumidity":82.4,"outsideTempOnHeatingDays":-0.48},{"month":3,"outsideTemp":3.07,"heatingDays":31,"degreeDayNum":462,"solarIrradianceKwhM2":88.1,"windSpeedAvg":5.84,"relativeHumidity":76.8,"outsideTempOnHeatingDays":3.07},{"month":4,"outsideTemp":8.86,"heatingDays":29,"degreeDayNum":274,"solarIrradianceKwhM2":129.2,"windSpeedAvg":5.28,"relativeHumidity":70.7,"outsideTempOnHeatingDays":8.73},{"month":5,"outsideTemp":14,"heatingDays":26,"degreeDayNum":132,"solarIrradianceKwhM2":160.1,"windSpeedAvg":5.09,"relativeHumidity":70.6,"outsideTempOnHeatingDays":12.94},{"month":6,"outsideTemp":17.51,"heatingDays":17,"degreeDayNum":48,"solarIrradianceKwhM2":164.3,"windSpeedAvg":4.96,"relativeHumidity":70.1,"outsideTempOnHeatingDays":15.15},{"month":7,"outsideTemp":19.53,"heatingDays":10,"degreeDayNum":19,"solarIrradianceKwhM2":161.7,"windSpeedAvg":4.8,"relativeHumidity":70.4,"outsideTempOnHeatingDays":16.1},{"month":8,"outsideTemp":19.28,"heatingDays":10,"degreeDayNum":21,"solarIrradianceKwhM2":140.3,"windSpeedAvg":4.61,"relativeHumidity":69.6,"outsideTempOnHeatingDays":15.96},{"month":9,"outsideTemp":14.4,"heatingDays":25,"degreeDayNum":115,"solarIrradianceKwhM2":91.9,"windSpeedAvg":5.06,"relativeHumidity":75.4,"outsideTempOnHeatingDays":13.47},{"month":10,"outsideTemp":9.2,"heatingDays":31,"degreeDayNum":272,"solarIrradianceKwhM2":56.3,"windSpeedAvg":5.38,"relativeHumidity":80.7,"outsideTempOnHeatingDays":9.19},{"month":11,"outsideTemp":4.23,"heatingDays":30,"degreeDayNum":413,"solarIrradianceKwhM2":27.9,"windSpeedAvg":5.43,"relativeHumidity":86,"outsideTempOnHeatingDays":4.23},{"month":12,"outsideTemp":0.11,"heatingDays":31,"degreeDayNum":554,"solarIrradianceKwhM2":19,"windSpeedAvg":5.78,"relativeHumidity":85.6,"outsideTempOnHeatingDays":0.11}],"groundTemp1m":9.47,"groundTemp2m":9.47,"solarIrradianceKwhM2Year":1108.4,"windSpeedAvg":5.33,"relativeHumidityAvg":76.9,"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":"2026-05-19T12:12:53.093Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}