{"location":{"city":"Sztabin","voivodeship":"Podlaskie","community":"Sztabin","postalCode":"16-310","latitude":53.6813,"longitude":23.0981,"elevation":127},"climateZone":4,"standardOutsideTemp":-22,"annualMeanTemp":7.9,"monthly":[{"month":1,"outsideTemp":-2.92,"heatingDays":31,"degreeDayNum":648,"solarIrradianceKwhM2":20,"windSpeedAvg":5.5,"relativeHumidity":86.6,"outsideTempOnHeatingDays":-2.92},{"month":2,"outsideTemp":-2.09,"heatingDays":28,"degreeDayNum":567,"solarIrradianceKwhM2":37.4,"windSpeedAvg":5.46,"relativeHumidity":84.2,"outsideTempOnHeatingDays":-2.09},{"month":3,"outsideTemp":1.44,"heatingDays":31,"degreeDayNum":513,"solarIrradianceKwhM2":81,"windSpeedAvg":5.41,"relativeHumidity":78.4,"outsideTempOnHeatingDays":1.44},{"month":4,"outsideTemp":7.71,"heatingDays":29,"degreeDayNum":308,"solarIrradianceKwhM2":123.8,"windSpeedAvg":4.94,"relativeHumidity":71.8,"outsideTempOnHeatingDays":7.6},{"month":5,"outsideTemp":13.22,"heatingDays":27,"degreeDayNum":153,"solarIrradianceKwhM2":160.9,"windSpeedAvg":4.85,"relativeHumidity":70.4,"outsideTempOnHeatingDays":12.43},{"month":6,"outsideTemp":16.73,"heatingDays":20,"degreeDayNum":61,"solarIrradianceKwhM2":163.6,"windSpeedAvg":4.76,"relativeHumidity":71.1,"outsideTempOnHeatingDays":14.92},{"month":7,"outsideTemp":18.84,"heatingDays":12,"degreeDayNum":24,"solarIrradianceKwhM2":161,"windSpeedAvg":4.54,"relativeHumidity":73.1,"outsideTempOnHeatingDays":16.07},{"month":8,"outsideTemp":18.27,"heatingDays":14,"degreeDayNum":33,"solarIrradianceKwhM2":135.2,"windSpeedAvg":4.46,"relativeHumidity":73,"outsideTempOnHeatingDays":15.76},{"month":9,"outsideTemp":13.42,"heatingDays":27,"degreeDayNum":140,"solarIrradianceKwhM2":85.9,"windSpeedAvg":4.85,"relativeHumidity":77.7,"outsideTempOnHeatingDays":12.95},{"month":10,"outsideTemp":7.85,"heatingDays":31,"degreeDayNum":314,"solarIrradianceKwhM2":49.2,"windSpeedAvg":5.24,"relativeHumidity":82.7,"outsideTempOnHeatingDays":7.84},{"month":11,"outsideTemp":2.95,"heatingDays":30,"degreeDayNum":451,"solarIrradianceKwhM2":21.1,"windSpeedAvg":5.23,"relativeHumidity":87.1,"outsideTempOnHeatingDays":2.95},{"month":12,"outsideTemp":-1.12,"heatingDays":31,"degreeDayNum":592,"solarIrradianceKwhM2":13.5,"windSpeedAvg":5.33,"relativeHumidity":87.6,"outsideTempOnHeatingDays":-1.12}],"groundTemp1m":8.3,"groundTemp2m":8.3,"solarIrradianceKwhM2Year":1052.6,"windSpeedAvg":5.05,"relativeHumidityAvg":78.6,"suitability":{"score":53,"rating":"fair","color":"yellow","estimatedScop":4,"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":"2026-05-19T12:23:57.165Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}