{"location":{"city":"Kierzkowo","voivodeship":"Pomorskie","community":"Gmina Choczewo","postalCode":"84-210","latitude":54.7643,"longitude":17.8751,"elevation":41},"climateZone":1,"standardOutsideTemp":-16,"annualMeanTemp":8.6,"monthly":[{"month":1,"outsideTemp":0.41,"heatingDays":31,"degreeDayNum":545,"solarIrradianceKwhM2":18.2,"windSpeedAvg":7.87,"relativeHumidity":83.4,"outsideTempOnHeatingDays":0.41},{"month":2,"outsideTemp":0.57,"heatingDays":28,"degreeDayNum":492,"solarIrradianceKwhM2":36.3,"windSpeedAvg":7.62,"relativeHumidity":82.5,"outsideTempOnHeatingDays":0.57},{"month":3,"outsideTemp":2.61,"heatingDays":31,"degreeDayNum":477,"solarIrradianceKwhM2":81.3,"windSpeedAvg":7.14,"relativeHumidity":79.6,"outsideTempOnHeatingDays":2.61},{"month":4,"outsideTemp":6.6,"heatingDays":30,"degreeDayNum":342,"solarIrradianceKwhM2":132.3,"windSpeedAvg":6.25,"relativeHumidity":77.6,"outsideTempOnHeatingDays":6.6},{"month":5,"outsideTemp":11.12,"heatingDays":29,"degreeDayNum":214,"solarIrradianceKwhM2":174.8,"windSpeedAvg":5.96,"relativeHumidity":76.9,"outsideTempOnHeatingDays":10.8},{"month":6,"outsideTemp":15.06,"heatingDays":26,"degreeDayNum":95,"solarIrradianceKwhM2":177.9,"windSpeedAvg":6.14,"relativeHumidity":77,"outsideTempOnHeatingDays":14.37},{"month":7,"outsideTemp":17.76,"heatingDays":18,"degreeDayNum":34,"solarIrradianceKwhM2":171.9,"windSpeedAvg":5.96,"relativeHumidity":78.2,"outsideTempOnHeatingDays":16.1},{"month":8,"outsideTemp":18.03,"heatingDays":16,"degreeDayNum":29,"solarIrradianceKwhM2":140.9,"windSpeedAvg":5.99,"relativeHumidity":77,"outsideTempOnHeatingDays":16.17},{"month":9,"outsideTemp":14.43,"heatingDays":27,"degreeDayNum":109,"solarIrradianceKwhM2":89.8,"windSpeedAvg":6.53,"relativeHumidity":77.7,"outsideTempOnHeatingDays":14.08},{"month":10,"outsideTemp":9.76,"heatingDays":31,"degreeDayNum":255,"solarIrradianceKwhM2":50.6,"windSpeedAvg":7.19,"relativeHumidity":79.8,"outsideTempOnHeatingDays":9.76},{"month":11,"outsideTemp":5.29,"heatingDays":30,"degreeDayNum":381,"solarIrradianceKwhM2":21.5,"windSpeedAvg":7.23,"relativeHumidity":83.8,"outsideTempOnHeatingDays":5.29},{"month":12,"outsideTemp":1.98,"heatingDays":31,"degreeDayNum":496,"solarIrradianceKwhM2":12.9,"windSpeedAvg":7.56,"relativeHumidity":84.4,"outsideTempOnHeatingDays":1.98}],"groundTemp1m":9.14,"groundTemp2m":9.14,"solarIrradianceKwhM2Year":1108.3,"windSpeedAvg":6.79,"relativeHumidityAvg":79.8,"suitability":{"score":69,"rating":"good","color":"lime","estimatedScop":4.1,"notes":["Wysokie nasłonecznienie — bardzo dobre warunki dla hybrydy pompa ciepła + PV.","Wysoka średnia prędkość wiatru (6.8 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:27:23.745Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}