{"location":{"city":"Czarny Młyn","voivodeship":"Pomorskie","community":"Główczyce","postalCode":"76-220","latitude":54.6008,"longitude":17.1891,"elevation":14},"climateZone":1,"standardOutsideTemp":-16,"annualMeanTemp":8.9,"monthly":[{"month":1,"outsideTemp":0.38,"heatingDays":31,"degreeDayNum":546,"solarIrradianceKwhM2":18.3,"windSpeedAvg":7.06,"relativeHumidity":83.6,"outsideTempOnHeatingDays":0.38},{"month":2,"outsideTemp":0.67,"heatingDays":28,"degreeDayNum":490,"solarIrradianceKwhM2":36.1,"windSpeedAvg":6.87,"relativeHumidity":82.6,"outsideTempOnHeatingDays":0.67},{"month":3,"outsideTemp":2.88,"heatingDays":31,"degreeDayNum":468,"solarIrradianceKwhM2":79,"windSpeedAvg":6.49,"relativeHumidity":79.5,"outsideTempOnHeatingDays":2.88},{"month":4,"outsideTemp":7.29,"heatingDays":29,"degreeDayNum":321,"solarIrradianceKwhM2":128,"windSpeedAvg":5.83,"relativeHumidity":75.9,"outsideTempOnHeatingDays":7.21},{"month":5,"outsideTemp":11.95,"heatingDays":28,"degreeDayNum":191,"solarIrradianceKwhM2":167.8,"windSpeedAvg":5.59,"relativeHumidity":74.3,"outsideTempOnHeatingDays":11.37},{"month":6,"outsideTemp":15.61,"heatingDays":24,"degreeDayNum":83,"solarIrradianceKwhM2":168.3,"windSpeedAvg":5.74,"relativeHumidity":74.8,"outsideTempOnHeatingDays":14.62},{"month":7,"outsideTemp":18.09,"heatingDays":16,"degreeDayNum":31,"solarIrradianceKwhM2":163.2,"windSpeedAvg":5.52,"relativeHumidity":76.4,"outsideTempOnHeatingDays":16.14},{"month":8,"outsideTemp":18.18,"heatingDays":15,"degreeDayNum":28,"solarIrradianceKwhM2":134.8,"windSpeedAvg":5.47,"relativeHumidity":76,"outsideTempOnHeatingDays":16.13},{"month":9,"outsideTemp":14.42,"heatingDays":27,"degreeDayNum":110,"solarIrradianceKwhM2":86.4,"windSpeedAvg":5.9,"relativeHumidity":77.9,"outsideTempOnHeatingDays":14.01},{"month":10,"outsideTemp":9.77,"heatingDays":31,"degreeDayNum":255,"solarIrradianceKwhM2":49.4,"windSpeedAvg":6.44,"relativeHumidity":80.6,"outsideTempOnHeatingDays":9.77},{"month":11,"outsideTemp":5.24,"heatingDays":30,"degreeDayNum":382,"solarIrradianceKwhM2":21.4,"windSpeedAvg":6.49,"relativeHumidity":84.7,"outsideTempOnHeatingDays":5.24},{"month":12,"outsideTemp":1.9,"heatingDays":31,"degreeDayNum":499,"solarIrradianceKwhM2":12.9,"windSpeedAvg":6.82,"relativeHumidity":85.2,"outsideTempOnHeatingDays":1.9}],"groundTemp1m":9.04,"groundTemp2m":9.04,"solarIrradianceKwhM2Year":1065.5,"windSpeedAvg":6.19,"relativeHumidityAvg":79.3,"suitability":{"score":70,"rating":"good","color":"lime","estimatedScop":4.1,"notes":["Wysokie nasłonecznienie — bardzo dobre warunki dla hybrydy pompa ciepła + PV.","Wysoka średnia prędkość wiatru (6.2 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:26:57.803Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}