{"location":{"city":"Poświętne","voivodeship":"Wielkopolskie","community":"Gmina Szamotuły","postalCode":"64-551","latitude":52.5637,"longitude":16.4122,"elevation":99},"climateZone":2,"standardOutsideTemp":-18,"annualMeanTemp":9.3,"monthly":[{"month":1,"outsideTemp":-0.35,"heatingDays":31,"degreeDayNum":568,"solarIrradianceKwhM2":22,"windSpeedAvg":5.5,"relativeHumidity":84.5,"outsideTempOnHeatingDays":-0.35},{"month":2,"outsideTemp":0.56,"heatingDays":28,"degreeDayNum":493,"solarIrradianceKwhM2":40.6,"windSpeedAvg":5.44,"relativeHumidity":81.5,"outsideTempOnHeatingDays":0.56},{"month":3,"outsideTemp":3.63,"heatingDays":31,"degreeDayNum":445,"solarIrradianceKwhM2":82.7,"windSpeedAvg":5.41,"relativeHumidity":77.2,"outsideTempOnHeatingDays":3.63},{"month":4,"outsideTemp":8.9,"heatingDays":29,"degreeDayNum":273,"solarIrradianceKwhM2":130.8,"windSpeedAvg":5.01,"relativeHumidity":70.6,"outsideTempOnHeatingDays":8.7},{"month":5,"outsideTemp":13.85,"heatingDays":26,"degreeDayNum":136,"solarIrradianceKwhM2":160.6,"windSpeedAvg":4.84,"relativeHumidity":68.4,"outsideTempOnHeatingDays":12.93},{"month":6,"outsideTemp":17.31,"heatingDays":17,"degreeDayNum":51,"solarIrradianceKwhM2":163.6,"windSpeedAvg":4.83,"relativeHumidity":67.7,"outsideTempOnHeatingDays":15.09},{"month":7,"outsideTemp":19.33,"heatingDays":11,"degreeDayNum":21,"solarIrradianceKwhM2":161.2,"windSpeedAvg":4.69,"relativeHumidity":68.9,"outsideTempOnHeatingDays":16.15},{"month":8,"outsideTemp":19.12,"heatingDays":11,"degreeDayNum":22,"solarIrradianceKwhM2":138.4,"windSpeedAvg":4.52,"relativeHumidity":69.2,"outsideTempOnHeatingDays":16.05},{"month":9,"outsideTemp":14.55,"heatingDays":25,"degreeDayNum":110,"solarIrradianceKwhM2":90.7,"windSpeedAvg":4.78,"relativeHumidity":75.2,"outsideTempOnHeatingDays":13.7},{"month":10,"outsideTemp":9.5,"heatingDays":30,"degreeDayNum":263,"solarIrradianceKwhM2":53.4,"windSpeedAvg":5.02,"relativeHumidity":81.1,"outsideTempOnHeatingDays":9.47},{"month":11,"outsideTemp":4.51,"heatingDays":30,"degreeDayNum":404,"solarIrradianceKwhM2":24.8,"windSpeedAvg":5.04,"relativeHumidity":86.9,"outsideTempOnHeatingDays":4.51},{"month":12,"outsideTemp":0.99,"heatingDays":31,"degreeDayNum":527,"solarIrradianceKwhM2":16.6,"windSpeedAvg":5.34,"relativeHumidity":86.3,"outsideTempOnHeatingDays":0.99}],"groundTemp1m":9.49,"groundTemp2m":9.49,"solarIrradianceKwhM2Year":1085.4,"windSpeedAvg":5.04,"relativeHumidityAvg":76.5,"suitability":{"score":75,"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":"2026-05-19T12:34:01.708Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}