{"location":{"city":"Strachów","voivodeship":"Mazowieckie","community":"Gmina Jadów","postalCode":"05-280","latitude":52.5409,"longitude":21.597,"elevation":95},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":8.8,"monthly":[{"month":1,"outsideTemp":-1.95,"heatingDays":31,"degreeDayNum":618,"solarIrradianceKwhM2":21.9,"windSpeedAvg":5.26,"relativeHumidity":84.9,"outsideTempOnHeatingDays":-1.95},{"month":2,"outsideTemp":-0.95,"heatingDays":28,"degreeDayNum":535,"solarIrradianceKwhM2":39.5,"windSpeedAvg":5.21,"relativeHumidity":82.7,"outsideTempOnHeatingDays":-0.95},{"month":3,"outsideTemp":2.66,"heatingDays":31,"degreeDayNum":475,"solarIrradianceKwhM2":82.8,"windSpeedAvg":5.27,"relativeHumidity":76.6,"outsideTempOnHeatingDays":2.66},{"month":4,"outsideTemp":8.66,"heatingDays":29,"degreeDayNum":280,"solarIrradianceKwhM2":125.7,"windSpeedAvg":4.82,"relativeHumidity":70.5,"outsideTempOnHeatingDays":8.53},{"month":5,"outsideTemp":14.09,"heatingDays":25,"degreeDayNum":131,"solarIrradianceKwhM2":160.6,"windSpeedAvg":4.67,"relativeHumidity":69.2,"outsideTempOnHeatingDays":12.95},{"month":6,"outsideTemp":17.54,"heatingDays":16,"degreeDayNum":47,"solarIrradianceKwhM2":163.8,"windSpeedAvg":4.6,"relativeHumidity":69.3,"outsideTempOnHeatingDays":15.21},{"month":7,"outsideTemp":19.62,"heatingDays":10,"degreeDayNum":17,"solarIrradianceKwhM2":163.4,"windSpeedAvg":4.41,"relativeHumidity":70.5,"outsideTempOnHeatingDays":16.25},{"month":8,"outsideTemp":19.1,"heatingDays":11,"degreeDayNum":22,"solarIrradianceKwhM2":138.9,"windSpeedAvg":4.26,"relativeHumidity":70.4,"outsideTempOnHeatingDays":16.02},{"month":9,"outsideTemp":14.18,"heatingDays":26,"degreeDayNum":120,"solarIrradianceKwhM2":89.1,"windSpeedAvg":4.61,"relativeHumidity":76.3,"outsideTempOnHeatingDays":13.41},{"month":10,"outsideTemp":8.75,"heatingDays":30,"degreeDayNum":286,"solarIrradianceKwhM2":53.3,"windSpeedAvg":4.94,"relativeHumidity":81.3,"outsideTempOnHeatingDays":8.72},{"month":11,"outsideTemp":3.83,"heatingDays":30,"degreeDayNum":425,"solarIrradianceKwhM2":24.6,"windSpeedAvg":4.96,"relativeHumidity":86.1,"outsideTempOnHeatingDays":3.83},{"month":12,"outsideTemp":-0.26,"heatingDays":31,"degreeDayNum":566,"solarIrradianceKwhM2":15.8,"windSpeedAvg":5.11,"relativeHumidity":86.2,"outsideTempOnHeatingDays":-0.26}],"groundTemp1m":9.06,"groundTemp2m":9.06,"solarIrradianceKwhM2Year":1079.2,"windSpeedAvg":4.84,"relativeHumidityAvg":77,"suitability":{"score":65,"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":"2026-05-19T12:21:52.789Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}