{"location":{"city":"Cisowe","voivodeship":"Mazowieckie","community":"Gmina Leoncin","postalCode":"05-156","latitude":52.3401,"longitude":20.5046,"elevation":102},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":9,"monthly":[{"month":1,"outsideTemp":-1.49,"heatingDays":31,"degreeDayNum":604,"solarIrradianceKwhM2":22.9,"windSpeedAvg":5.46,"relativeHumidity":83.8,"outsideTempOnHeatingDays":-1.49},{"month":2,"outsideTemp":-0.43,"heatingDays":28,"degreeDayNum":521,"solarIrradianceKwhM2":40.7,"windSpeedAvg":5.4,"relativeHumidity":81.6,"outsideTempOnHeatingDays":-0.43},{"month":3,"outsideTemp":3.01,"heatingDays":31,"degreeDayNum":464,"solarIrradianceKwhM2":84.2,"windSpeedAvg":5.45,"relativeHumidity":76.2,"outsideTempOnHeatingDays":3.01},{"month":4,"outsideTemp":8.88,"heatingDays":29,"degreeDayNum":274,"solarIrradianceKwhM2":127.6,"windSpeedAvg":4.93,"relativeHumidity":70.2,"outsideTempOnHeatingDays":8.72},{"month":5,"outsideTemp":14.1,"heatingDays":25,"degreeDayNum":130,"solarIrradianceKwhM2":161.5,"windSpeedAvg":4.76,"relativeHumidity":69.4,"outsideTempOnHeatingDays":12.98},{"month":6,"outsideTemp":17.53,"heatingDays":16,"degreeDayNum":47,"solarIrradianceKwhM2":165.3,"windSpeedAvg":4.7,"relativeHumidity":69.6,"outsideTempOnHeatingDays":15.17},{"month":7,"outsideTemp":19.57,"heatingDays":10,"degreeDayNum":17,"solarIrradianceKwhM2":163.7,"windSpeedAvg":4.51,"relativeHumidity":70.6,"outsideTempOnHeatingDays":16.23},{"month":8,"outsideTemp":19.19,"heatingDays":10,"degreeDayNum":21,"solarIrradianceKwhM2":140.4,"windSpeedAvg":4.33,"relativeHumidity":70.2,"outsideTempOnHeatingDays":16.03},{"month":9,"outsideTemp":14.34,"heatingDays":25,"degreeDayNum":115,"solarIrradianceKwhM2":90.5,"windSpeedAvg":4.73,"relativeHumidity":75.7,"outsideTempOnHeatingDays":13.53},{"month":10,"outsideTemp":9.04,"heatingDays":30,"degreeDayNum":277,"solarIrradianceKwhM2":54.5,"windSpeedAvg":5.04,"relativeHumidity":80.7,"outsideTempOnHeatingDays":9.01},{"month":11,"outsideTemp":4.12,"heatingDays":30,"degreeDayNum":416,"solarIrradianceKwhM2":25.6,"windSpeedAvg":5.07,"relativeHumidity":85.6,"outsideTempOnHeatingDays":4.12},{"month":12,"outsideTemp":0.14,"heatingDays":31,"degreeDayNum":553,"solarIrradianceKwhM2":16.8,"windSpeedAvg":5.29,"relativeHumidity":85.2,"outsideTempOnHeatingDays":0.14}],"groundTemp1m":9.42,"groundTemp2m":9.42,"solarIrradianceKwhM2Year":1093.8,"windSpeedAvg":4.98,"relativeHumidityAvg":76.6,"suitability":{"score":69,"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":"2026-05-19T12:08:30.957Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}