{"location":{"city":"Sady-Kolonia","voivodeship":"Mazowieckie","community":"Gmina Klwów","postalCode":"26-415","latitude":51.4581,"longitude":20.6841,"elevation":166},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":8.9,"monthly":[{"month":1,"outsideTemp":-1.65,"heatingDays":31,"degreeDayNum":609,"solarIrradianceKwhM2":25.3,"windSpeedAvg":5.65,"relativeHumidity":83.4,"outsideTempOnHeatingDays":-1.65},{"month":2,"outsideTemp":-0.56,"heatingDays":28,"degreeDayNum":524,"solarIrradianceKwhM2":43.8,"windSpeedAvg":5.55,"relativeHumidity":81.7,"outsideTempOnHeatingDays":-0.56},{"month":3,"outsideTemp":2.96,"heatingDays":31,"degreeDayNum":466,"solarIrradianceKwhM2":87.6,"windSpeedAvg":5.58,"relativeHumidity":76.2,"outsideTempOnHeatingDays":2.96},{"month":4,"outsideTemp":8.77,"heatingDays":29,"degreeDayNum":277,"solarIrradianceKwhM2":128.4,"windSpeedAvg":5.03,"relativeHumidity":70.6,"outsideTempOnHeatingDays":8.65},{"month":5,"outsideTemp":13.96,"heatingDays":26,"degreeDayNum":132,"solarIrradianceKwhM2":160.4,"windSpeedAvg":4.79,"relativeHumidity":70.6,"outsideTempOnHeatingDays":12.93},{"month":6,"outsideTemp":17.45,"heatingDays":17,"degreeDayNum":48,"solarIrradianceKwhM2":165.4,"windSpeedAvg":4.72,"relativeHumidity":70.5,"outsideTempOnHeatingDays":15.14},{"month":7,"outsideTemp":19.47,"heatingDays":10,"degreeDayNum":19,"solarIrradianceKwhM2":162.8,"windSpeedAvg":4.56,"relativeHumidity":70.8,"outsideTempOnHeatingDays":16.15},{"month":8,"outsideTemp":19.14,"heatingDays":10,"degreeDayNum":22,"solarIrradianceKwhM2":141.3,"windSpeedAvg":4.35,"relativeHumidity":70.2,"outsideTempOnHeatingDays":15.95},{"month":9,"outsideTemp":14.28,"heatingDays":25,"degreeDayNum":118,"solarIrradianceKwhM2":92.2,"windSpeedAvg":4.8,"relativeHumidity":75.6,"outsideTempOnHeatingDays":13.38},{"month":10,"outsideTemp":9.04,"heatingDays":31,"degreeDayNum":277,"solarIrradianceKwhM2":56.6,"windSpeedAvg":5.13,"relativeHumidity":80.6,"outsideTempOnHeatingDays":9.03},{"month":11,"outsideTemp":4.1,"heatingDays":30,"degreeDayNum":417,"solarIrradianceKwhM2":27.9,"windSpeedAvg":5.18,"relativeHumidity":85.3,"outsideTempOnHeatingDays":4.1},{"month":12,"outsideTemp":0.02,"heatingDays":31,"degreeDayNum":557,"solarIrradianceKwhM2":18.7,"windSpeedAvg":5.51,"relativeHumidity":84.8,"outsideTempOnHeatingDays":0.02}],"groundTemp1m":9.39,"groundTemp2m":9.39,"solarIrradianceKwhM2Year":1110.1,"windSpeedAvg":5.07,"relativeHumidityAvg":76.7,"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 (5.1 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:20:28.343Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}