{"location":{"city":"Bolesław","voivodeship":"Małopolskie","community":"Bolesław","postalCode":"32-320","latitude":50.2993,"longitude":19.4761,"elevation":316},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":8.7,"monthly":[{"month":1,"outsideTemp":-2.07,"heatingDays":31,"degreeDayNum":622,"solarIrradianceKwhM2":29.4,"windSpeedAvg":5.72,"relativeHumidity":85.2,"outsideTempOnHeatingDays":-2.07},{"month":2,"outsideTemp":-0.79,"heatingDays":28,"degreeDayNum":531,"solarIrradianceKwhM2":48.5,"windSpeedAvg":5.65,"relativeHumidity":82.6,"outsideTempOnHeatingDays":-0.79},{"month":3,"outsideTemp":3.05,"heatingDays":31,"degreeDayNum":463,"solarIrradianceKwhM2":90.4,"windSpeedAvg":5.76,"relativeHumidity":76.4,"outsideTempOnHeatingDays":3.05},{"month":4,"outsideTemp":8.76,"heatingDays":29,"degreeDayNum":277,"solarIrradianceKwhM2":130.6,"windSpeedAvg":5.1,"relativeHumidity":71,"outsideTempOnHeatingDays":8.65},{"month":5,"outsideTemp":13.64,"heatingDays":27,"degreeDayNum":140,"solarIrradianceKwhM2":156.8,"windSpeedAvg":4.85,"relativeHumidity":73,"outsideTempOnHeatingDays":12.82},{"month":6,"outsideTemp":17.1,"heatingDays":18,"degreeDayNum":54,"solarIrradianceKwhM2":160.4,"windSpeedAvg":4.69,"relativeHumidity":74,"outsideTempOnHeatingDays":14.96},{"month":7,"outsideTemp":19,"heatingDays":12,"degreeDayNum":24,"solarIrradianceKwhM2":160.7,"windSpeedAvg":4.55,"relativeHumidity":73.7,"outsideTempOnHeatingDays":15.94},{"month":8,"outsideTemp":18.86,"heatingDays":12,"degreeDayNum":26,"solarIrradianceKwhM2":142,"windSpeedAvg":4.34,"relativeHumidity":72.7,"outsideTempOnHeatingDays":15.87},{"month":9,"outsideTemp":14.09,"heatingDays":26,"degreeDayNum":122,"solarIrradianceKwhM2":93.9,"windSpeedAvg":4.8,"relativeHumidity":76.9,"outsideTempOnHeatingDays":13.35},{"month":10,"outsideTemp":9.09,"heatingDays":30,"degreeDayNum":276,"solarIrradianceKwhM2":59.2,"windSpeedAvg":5.03,"relativeHumidity":81.2,"outsideTempOnHeatingDays":9.05},{"month":11,"outsideTemp":4.08,"heatingDays":30,"degreeDayNum":417,"solarIrradianceKwhM2":31.5,"windSpeedAvg":5.13,"relativeHumidity":85.9,"outsideTempOnHeatingDays":4.08},{"month":12,"outsideTemp":-0.38,"heatingDays":31,"degreeDayNum":569,"solarIrradianceKwhM2":22.5,"windSpeedAvg":5.58,"relativeHumidity":85.6,"outsideTempOnHeatingDays":-0.38}],"groundTemp1m":9.26,"groundTemp2m":9.26,"solarIrradianceKwhM2Year":1126,"windSpeedAvg":5.1,"relativeHumidityAvg":78.2,"suitability":{"score":64,"rating":"fair","color":"yellow","estimatedScop":4.1,"notes":["Wysokie nasłonecznienie - bardzo dobre warunki dla hybrydy pompa ciepła + PV.","Wysoka średnia prędkość wiatru (5.1 m/s) - większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991-2020)","fetchedAt":"2026-05-19T12:07:14.036Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}