{"location":{"city":"Klonówka","voivodeship":"Pomorskie","community":"Starogard Gdański","postalCode":"83-130","latitude":53.9667,"longitude":18.6461,"elevation":63},"climateZone":2,"standardOutsideTemp":-18,"annualMeanTemp":8.5,"monthly":[{"month":1,"outsideTemp":-1.27,"heatingDays":31,"degreeDayNum":597,"solarIrradianceKwhM2":20.8,"windSpeedAvg":6.05,"relativeHumidity":86.3,"outsideTempOnHeatingDays":-1.27},{"month":2,"outsideTemp":-0.41,"heatingDays":28,"degreeDayNum":520,"solarIrradianceKwhM2":39.3,"windSpeedAvg":6.04,"relativeHumidity":83.6,"outsideTempOnHeatingDays":-0.41},{"month":3,"outsideTemp":2.55,"heatingDays":31,"degreeDayNum":479,"solarIrradianceKwhM2":82.1,"windSpeedAvg":5.91,"relativeHumidity":78.4,"outsideTempOnHeatingDays":2.55},{"month":4,"outsideTemp":7.81,"heatingDays":29,"degreeDayNum":306,"solarIrradianceKwhM2":129.1,"windSpeedAvg":5.45,"relativeHumidity":73.6,"outsideTempOnHeatingDays":7.72},{"month":5,"outsideTemp":12.74,"heatingDays":28,"degreeDayNum":167,"solarIrradianceKwhM2":165.8,"windSpeedAvg":5.21,"relativeHumidity":72.5,"outsideTempOnHeatingDays":12.02},{"month":6,"outsideTemp":16.18,"heatingDays":22,"degreeDayNum":70,"solarIrradianceKwhM2":167.5,"windSpeedAvg":5.21,"relativeHumidity":73.2,"outsideTempOnHeatingDays":14.87},{"month":7,"outsideTemp":18.43,"heatingDays":15,"degreeDayNum":27,"solarIrradianceKwhM2":163.9,"windSpeedAvg":5.07,"relativeHumidity":74.4,"outsideTempOnHeatingDays":16.22},{"month":8,"outsideTemp":18.25,"heatingDays":14,"degreeDayNum":30,"solarIrradianceKwhM2":138,"windSpeedAvg":4.91,"relativeHumidity":74.2,"outsideTempOnHeatingDays":15.98},{"month":9,"outsideTemp":13.95,"heatingDays":27,"degreeDayNum":124,"solarIrradianceKwhM2":88.7,"windSpeedAvg":5.27,"relativeHumidity":78,"outsideTempOnHeatingDays":13.48},{"month":10,"outsideTemp":8.85,"heatingDays":31,"degreeDayNum":283,"solarIrradianceKwhM2":51.5,"windSpeedAvg":5.66,"relativeHumidity":82.3,"outsideTempOnHeatingDays":8.85},{"month":11,"outsideTemp":4.03,"heatingDays":30,"degreeDayNum":419,"solarIrradianceKwhM2":22.6,"windSpeedAvg":5.61,"relativeHumidity":87.8,"outsideTempOnHeatingDays":4.03},{"month":12,"outsideTemp":0.4,"heatingDays":31,"degreeDayNum":545,"solarIrradianceKwhM2":14.3,"windSpeedAvg":5.86,"relativeHumidity":87.8,"outsideTempOnHeatingDays":0.4}],"groundTemp1m":8.87,"groundTemp2m":8.87,"solarIrradianceKwhM2Year":1083.5,"windSpeedAvg":5.52,"relativeHumidityAvg":79.3,"suitability":{"score":65,"rating":"good","color":"lime","estimatedScop":4.1,"notes":["Wysokie nasłonecznienie — bardzo dobre warunki dla hybrydy pompa ciepła + PV.","Wysoka średnia prędkość wiatru (5.5 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:27:09.621Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}