{"location":{"city":"Grzybowo","voivodeship":"Mazowieckie","community":"Gmina Wieczfnia Kościelna","postalCode":"06-513","latitude":53.1628,"longitude":20.4937,"elevation":153},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":8.2,"monthly":[{"month":1,"outsideTemp":-2.27,"heatingDays":31,"degreeDayNum":628,"solarIrradianceKwhM2":21.1,"windSpeedAvg":5.75,"relativeHumidity":87,"outsideTempOnHeatingDays":-2.27},{"month":2,"outsideTemp":-1.29,"heatingDays":28,"degreeDayNum":545,"solarIrradianceKwhM2":38.8,"windSpeedAvg":5.69,"relativeHumidity":84.4,"outsideTempOnHeatingDays":-1.29},{"month":3,"outsideTemp":2.11,"heatingDays":31,"degreeDayNum":492,"solarIrradianceKwhM2":81.6,"windSpeedAvg":5.68,"relativeHumidity":78.2,"outsideTempOnHeatingDays":2.11},{"month":4,"outsideTemp":7.93,"heatingDays":29,"degreeDayNum":302,"solarIrradianceKwhM2":126.3,"windSpeedAvg":5.15,"relativeHumidity":71.9,"outsideTempOnHeatingDays":7.83},{"month":5,"outsideTemp":13.14,"heatingDays":27,"degreeDayNum":156,"solarIrradianceKwhM2":161.3,"windSpeedAvg":5.05,"relativeHumidity":70.7,"outsideTempOnHeatingDays":12.32},{"month":6,"outsideTemp":16.55,"heatingDays":20,"degreeDayNum":64,"solarIrradianceKwhM2":163.4,"windSpeedAvg":4.97,"relativeHumidity":71.2,"outsideTempOnHeatingDays":14.78},{"month":7,"outsideTemp":18.65,"heatingDays":14,"degreeDayNum":28,"solarIrradianceKwhM2":162.5,"windSpeedAvg":4.79,"relativeHumidity":72.8,"outsideTempOnHeatingDays":15.99},{"month":8,"outsideTemp":18.31,"heatingDays":14,"degreeDayNum":31,"solarIrradianceKwhM2":137.3,"windSpeedAvg":4.61,"relativeHumidity":72.1,"outsideTempOnHeatingDays":15.82},{"month":9,"outsideTemp":13.63,"heatingDays":27,"degreeDayNum":134,"solarIrradianceKwhM2":87.9,"windSpeedAvg":5.03,"relativeHumidity":77.3,"outsideTempOnHeatingDays":13.09},{"month":10,"outsideTemp":8.28,"heatingDays":31,"degreeDayNum":301,"solarIrradianceKwhM2":51.6,"windSpeedAvg":5.38,"relativeHumidity":82.7,"outsideTempOnHeatingDays":8.28},{"month":11,"outsideTemp":3.41,"heatingDays":30,"degreeDayNum":437,"solarIrradianceKwhM2":23,"windSpeedAvg":5.42,"relativeHumidity":88,"outsideTempOnHeatingDays":3.41},{"month":12,"outsideTemp":-0.51,"heatingDays":31,"degreeDayNum":573,"solarIrradianceKwhM2":14.7,"windSpeedAvg":5.57,"relativeHumidity":88,"outsideTempOnHeatingDays":-0.51}],"groundTemp1m":8.74,"groundTemp2m":8.74,"solarIrradianceKwhM2Year":1069.4,"windSpeedAvg":5.26,"relativeHumidityAvg":78.7,"suitability":{"score":58,"rating":"fair","color":"yellow","estimatedScop":4.1,"notes":["Wysokie nasłonecznienie — bardzo dobre warunki dla hybrydy pompa ciepła + PV.","Wysoka średnia prędkość wiatru (5.3 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:18:57.237Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}