{"location":{"city":"Janowo","voivodeship":"Wielkopolskie","community":"Gmina Jutrosin","postalCode":"63-930","latitude":51.5973,"longitude":17.1913,"elevation":108},"climateZone":2,"standardOutsideTemp":-18,"annualMeanTemp":9.7,"monthly":[{"month":1,"outsideTemp":-0.4,"heatingDays":31,"degreeDayNum":570,"solarIrradianceKwhM2":24.7,"windSpeedAvg":5.61,"relativeHumidity":83.4,"outsideTempOnHeatingDays":-0.4},{"month":2,"outsideTemp":0.69,"heatingDays":28,"degreeDayNum":489,"solarIrradianceKwhM2":43.5,"windSpeedAvg":5.56,"relativeHumidity":80.4,"outsideTempOnHeatingDays":0.69},{"month":3,"outsideTemp":3.95,"heatingDays":31,"degreeDayNum":435,"solarIrradianceKwhM2":85.5,"windSpeedAvg":5.56,"relativeHumidity":76.3,"outsideTempOnHeatingDays":3.95},{"month":4,"outsideTemp":9.38,"heatingDays":29,"degreeDayNum":259,"solarIrradianceKwhM2":131,"windSpeedAvg":5.15,"relativeHumidity":69.9,"outsideTempOnHeatingDays":9.16},{"month":5,"outsideTemp":14.36,"heatingDays":25,"degreeDayNum":123,"solarIrradianceKwhM2":159.1,"windSpeedAvg":5.03,"relativeHumidity":68.4,"outsideTempOnHeatingDays":13.16},{"month":6,"outsideTemp":17.92,"heatingDays":15,"degreeDayNum":42,"solarIrradianceKwhM2":162.6,"windSpeedAvg":4.95,"relativeHumidity":67.4,"outsideTempOnHeatingDays":15.27},{"month":7,"outsideTemp":19.87,"heatingDays":9,"degreeDayNum":16,"solarIrradianceKwhM2":162.7,"windSpeedAvg":4.8,"relativeHumidity":68.3,"outsideTempOnHeatingDays":16.29},{"month":8,"outsideTemp":19.73,"heatingDays":9,"degreeDayNum":17,"solarIrradianceKwhM2":141.3,"windSpeedAvg":4.57,"relativeHumidity":67.8,"outsideTempOnHeatingDays":16.1},{"month":9,"outsideTemp":14.96,"heatingDays":24,"degreeDayNum":100,"solarIrradianceKwhM2":92.9,"windSpeedAvg":4.86,"relativeHumidity":73.8,"outsideTempOnHeatingDays":13.87},{"month":10,"outsideTemp":9.87,"heatingDays":30,"degreeDayNum":252,"solarIrradianceKwhM2":56.7,"windSpeedAvg":5.11,"relativeHumidity":79.6,"outsideTempOnHeatingDays":9.81},{"month":11,"outsideTemp":4.86,"heatingDays":30,"degreeDayNum":394,"solarIrradianceKwhM2":27.9,"windSpeedAvg":5.2,"relativeHumidity":85.3,"outsideTempOnHeatingDays":4.86},{"month":12,"outsideTemp":1.01,"heatingDays":31,"degreeDayNum":526,"solarIrradianceKwhM2":19.1,"windSpeedAvg":5.47,"relativeHumidity":84.8,"outsideTempOnHeatingDays":1.01}],"groundTemp1m":9.9,"groundTemp2m":9.9,"solarIrradianceKwhM2Year":1107.1,"windSpeedAvg":5.16,"relativeHumidityAvg":75.4,"suitability":{"score":78,"rating":"good","color":"lime","estimatedScop":4.2,"notes":["Wysokie nasłonecznienie — bardzo dobre warunki dla hybrydy pompa ciepła + PV.","Wysoka średnia prędkość wiatru (5.2 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:33:49.054Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}