{"location":{"city":"Wólka Łasiecka","voivodeship":"Łódzkie","community":"Gmina Bolimów","postalCode":"99-417","latitude":52.0588,"longitude":20.1529,"elevation":96},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":9.1,"monthly":[{"month":1,"outsideTemp":-1.27,"heatingDays":31,"degreeDayNum":597,"solarIrradianceKwhM2":23.8,"windSpeedAvg":5.62,"relativeHumidity":83.4,"outsideTempOnHeatingDays":-1.27},{"month":2,"outsideTemp":-0.23,"heatingDays":28,"degreeDayNum":515,"solarIrradianceKwhM2":41.8,"windSpeedAvg":5.53,"relativeHumidity":81.5,"outsideTempOnHeatingDays":-0.23},{"month":3,"outsideTemp":3.18,"heatingDays":31,"degreeDayNum":459,"solarIrradianceKwhM2":86,"windSpeedAvg":5.56,"relativeHumidity":76.2,"outsideTempOnHeatingDays":3.18},{"month":4,"outsideTemp":8.95,"heatingDays":29,"degreeDayNum":272,"solarIrradianceKwhM2":128.4,"windSpeedAvg":5.02,"relativeHumidity":70.4,"outsideTempOnHeatingDays":8.81},{"month":5,"outsideTemp":14.11,"heatingDays":26,"degreeDayNum":129,"solarIrradianceKwhM2":161.6,"windSpeedAvg":4.81,"relativeHumidity":70,"outsideTempOnHeatingDays":13.03},{"month":6,"outsideTemp":17.6,"heatingDays":16,"degreeDayNum":46,"solarIrradianceKwhM2":165.9,"windSpeedAvg":4.74,"relativeHumidity":69.6,"outsideTempOnHeatingDays":15.22},{"month":7,"outsideTemp":19.63,"heatingDays":10,"degreeDayNum":17,"solarIrradianceKwhM2":163.4,"windSpeedAvg":4.58,"relativeHumidity":70.5,"outsideTempOnHeatingDays":16.3},{"month":8,"outsideTemp":19.3,"heatingDays":10,"degreeDayNum":20,"solarIrradianceKwhM2":140.9,"windSpeedAvg":4.4,"relativeHumidity":69.9,"outsideTempOnHeatingDays":16.06},{"month":9,"outsideTemp":14.47,"heatingDays":25,"degreeDayNum":112,"solarIrradianceKwhM2":91.1,"windSpeedAvg":4.81,"relativeHumidity":75.5,"outsideTempOnHeatingDays":13.6},{"month":10,"outsideTemp":9.27,"heatingDays":30,"degreeDayNum":270,"solarIrradianceKwhM2":55.3,"windSpeedAvg":5.15,"relativeHumidity":80.3,"outsideTempOnHeatingDays":9.23},{"month":11,"outsideTemp":4.35,"heatingDays":30,"degreeDayNum":409,"solarIrradianceKwhM2":26.6,"windSpeedAvg":5.19,"relativeHumidity":85.3,"outsideTempOnHeatingDays":4.35},{"month":12,"outsideTemp":0.36,"heatingDays":31,"degreeDayNum":546,"solarIrradianceKwhM2":17.6,"windSpeedAvg":5.48,"relativeHumidity":84.9,"outsideTempOnHeatingDays":0.36}],"groundTemp1m":9.5,"groundTemp2m":9.5,"solarIrradianceKwhM2Year":1102.5,"windSpeedAvg":5.07,"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 (5.1 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:13:37.428Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}