{"location":{"city":"Aleksandrów","voivodeship":"Mazowieckie","community":"Gmina Wiskitki","postalCode":"96-317","latitude":52.1311,"longitude":20.3276,"elevation":98},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":9.1,"monthly":[{"month":1,"outsideTemp":-1.31,"heatingDays":31,"degreeDayNum":598,"solarIrradianceKwhM2":23.1,"windSpeedAvg":5.55,"relativeHumidity":83.5,"outsideTempOnHeatingDays":-1.31},{"month":2,"outsideTemp":-0.27,"heatingDays":28,"degreeDayNum":516,"solarIrradianceKwhM2":41,"windSpeedAvg":5.47,"relativeHumidity":81.6,"outsideTempOnHeatingDays":-0.27},{"month":3,"outsideTemp":3.16,"heatingDays":31,"degreeDayNum":460,"solarIrradianceKwhM2":84.8,"windSpeedAvg":5.51,"relativeHumidity":76.2,"outsideTempOnHeatingDays":3.16},{"month":4,"outsideTemp":8.92,"heatingDays":29,"degreeDayNum":272,"solarIrradianceKwhM2":128.2,"windSpeedAvg":4.97,"relativeHumidity":70.5,"outsideTempOnHeatingDays":8.8},{"month":5,"outsideTemp":14.1,"heatingDays":26,"degreeDayNum":129,"solarIrradianceKwhM2":161.9,"windSpeedAvg":4.78,"relativeHumidity":70.1,"outsideTempOnHeatingDays":13.02},{"month":6,"outsideTemp":17.57,"heatingDays":16,"degreeDayNum":46,"solarIrradianceKwhM2":165.9,"windSpeedAvg":4.72,"relativeHumidity":69.9,"outsideTempOnHeatingDays":15.2},{"month":7,"outsideTemp":19.62,"heatingDays":10,"degreeDayNum":17,"solarIrradianceKwhM2":163.7,"windSpeedAvg":4.56,"relativeHumidity":70.7,"outsideTempOnHeatingDays":16.28},{"month":8,"outsideTemp":19.28,"heatingDays":10,"degreeDayNum":20,"solarIrradianceKwhM2":140.7,"windSpeedAvg":4.38,"relativeHumidity":70.1,"outsideTempOnHeatingDays":16.06},{"month":9,"outsideTemp":14.46,"heatingDays":25,"degreeDayNum":113,"solarIrradianceKwhM2":90.6,"windSpeedAvg":4.78,"relativeHumidity":75.6,"outsideTempOnHeatingDays":13.57},{"month":10,"outsideTemp":9.24,"heatingDays":30,"degreeDayNum":271,"solarIrradianceKwhM2":54.8,"windSpeedAvg":5.12,"relativeHumidity":80.4,"outsideTempOnHeatingDays":9.2},{"month":11,"outsideTemp":4.33,"heatingDays":30,"degreeDayNum":410,"solarIrradianceKwhM2":25.9,"windSpeedAvg":5.14,"relativeHumidity":85.3,"outsideTempOnHeatingDays":4.33},{"month":12,"outsideTemp":0.33,"heatingDays":31,"degreeDayNum":547,"solarIrradianceKwhM2":17,"windSpeedAvg":5.39,"relativeHumidity":84.9,"outsideTempOnHeatingDays":0.33}],"groundTemp1m":9.46,"groundTemp2m":9.46,"solarIrradianceKwhM2Year":1097.6,"windSpeedAvg":5.03,"relativeHumidityAvg":76.6,"suitability":{"score":71,"rating":"good","color":"lime","estimatedScop":4.1,"notes":["Wysokie nasłonecznienie — bardzo dobre warunki dla hybrydy pompa ciepła + PV.","Wysoka średnia prędkość wiatru (5.0 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:08:33.632Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}