{"location":{"city":"Nowy Dwór Mazowiecki","voivodeship":"Mazowieckie","community":"Nowy Dwór Mazowiecki","postalCode":"05-102","latitude":52.4325,"longitude":20.718,"elevation":77},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":9.1,"monthly":[{"month":1,"outsideTemp":-1.42,"heatingDays":31,"degreeDayNum":602,"solarIrradianceKwhM2":22.2,"windSpeedAvg":5.31,"relativeHumidity":84.1,"outsideTempOnHeatingDays":-1.42},{"month":2,"outsideTemp":-0.35,"heatingDays":28,"degreeDayNum":518,"solarIrradianceKwhM2":39.9,"windSpeedAvg":5.28,"relativeHumidity":81.8,"outsideTempOnHeatingDays":-0.35},{"month":3,"outsideTemp":3.12,"heatingDays":31,"degreeDayNum":461,"solarIrradianceKwhM2":83,"windSpeedAvg":5.32,"relativeHumidity":76.3,"outsideTempOnHeatingDays":3.12},{"month":4,"outsideTemp":9.05,"heatingDays":29,"degreeDayNum":269,"solarIrradianceKwhM2":126.8,"windSpeedAvg":4.84,"relativeHumidity":70.3,"outsideTempOnHeatingDays":8.86},{"month":5,"outsideTemp":14.29,"heatingDays":25,"degreeDayNum":125,"solarIrradianceKwhM2":161.1,"windSpeedAvg":4.69,"relativeHumidity":69.6,"outsideTempOnHeatingDays":13.13},{"month":6,"outsideTemp":17.69,"heatingDays":16,"degreeDayNum":44,"solarIrradianceKwhM2":164.4,"windSpeedAvg":4.62,"relativeHumidity":70,"outsideTempOnHeatingDays":15.27},{"month":7,"outsideTemp":19.72,"heatingDays":9,"degreeDayNum":16,"solarIrradianceKwhM2":163.5,"windSpeedAvg":4.43,"relativeHumidity":71.2,"outsideTempOnHeatingDays":16.28},{"month":8,"outsideTemp":19.3,"heatingDays":10,"degreeDayNum":19,"solarIrradianceKwhM2":139.4,"windSpeedAvg":4.28,"relativeHumidity":71,"outsideTempOnHeatingDays":16.13},{"month":9,"outsideTemp":14.47,"heatingDays":25,"degreeDayNum":112,"solarIrradianceKwhM2":89.7,"windSpeedAvg":4.64,"relativeHumidity":76.3,"outsideTempOnHeatingDays":13.65},{"month":10,"outsideTemp":9.15,"heatingDays":30,"degreeDayNum":274,"solarIrradianceKwhM2":53.6,"windSpeedAvg":4.94,"relativeHumidity":81,"outsideTempOnHeatingDays":9.11},{"month":11,"outsideTemp":4.22,"heatingDays":30,"degreeDayNum":413,"solarIrradianceKwhM2":24.8,"windSpeedAvg":4.96,"relativeHumidity":85.8,"outsideTempOnHeatingDays":4.22},{"month":12,"outsideTemp":0.19,"heatingDays":31,"degreeDayNum":552,"solarIrradianceKwhM2":16.1,"windSpeedAvg":5.14,"relativeHumidity":85.6,"outsideTempOnHeatingDays":0.19}],"groundTemp1m":9.49,"groundTemp2m":9.49,"solarIrradianceKwhM2Year":1084.4,"windSpeedAvg":4.87,"relativeHumidityAvg":76.9,"suitability":{"score":70,"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":"2026-05-19T12:08:25.911Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}