{"location":{"city":"Pijanów","voivodeship":"Świętokrzyskie","community":"Słupia (Konecka)","postalCode":"26-234","latitude":51.0338,"longitude":20.1673,"elevation":234},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":8.7,"monthly":[{"month":1,"outsideTemp":-1.98,"heatingDays":31,"degreeDayNum":619,"solarIrradianceKwhM2":27.1,"windSpeedAvg":5.83,"relativeHumidity":85,"outsideTempOnHeatingDays":-1.98},{"month":2,"outsideTemp":-0.86,"heatingDays":28,"degreeDayNum":533,"solarIrradianceKwhM2":45.8,"windSpeedAvg":5.78,"relativeHumidity":82.9,"outsideTempOnHeatingDays":-0.86},{"month":3,"outsideTemp":2.8,"heatingDays":31,"degreeDayNum":471,"solarIrradianceKwhM2":88.8,"windSpeedAvg":5.83,"relativeHumidity":76.9,"outsideTempOnHeatingDays":2.8},{"month":4,"outsideTemp":8.66,"heatingDays":29,"degreeDayNum":280,"solarIrradianceKwhM2":129,"windSpeedAvg":5.27,"relativeHumidity":70.7,"outsideTempOnHeatingDays":8.53},{"month":5,"outsideTemp":13.79,"heatingDays":26,"degreeDayNum":138,"solarIrradianceKwhM2":158.6,"windSpeedAvg":5.09,"relativeHumidity":71,"outsideTempOnHeatingDays":12.77},{"month":6,"outsideTemp":17.3,"heatingDays":17,"degreeDayNum":52,"solarIrradianceKwhM2":162.8,"windSpeedAvg":4.94,"relativeHumidity":70.8,"outsideTempOnHeatingDays":15.01},{"month":7,"outsideTemp":19.27,"heatingDays":11,"degreeDayNum":22,"solarIrradianceKwhM2":160.5,"windSpeedAvg":4.79,"relativeHumidity":71.1,"outsideTempOnHeatingDays":15.97},{"month":8,"outsideTemp":19.01,"heatingDays":11,"degreeDayNum":25,"solarIrradianceKwhM2":140.6,"windSpeedAvg":4.55,"relativeHumidity":70.2,"outsideTempOnHeatingDays":15.79},{"month":9,"outsideTemp":14.11,"heatingDays":26,"degreeDayNum":123,"solarIrradianceKwhM2":92.6,"windSpeedAvg":5.01,"relativeHumidity":76,"outsideTempOnHeatingDays":13.26},{"month":10,"outsideTemp":8.94,"heatingDays":30,"degreeDayNum":281,"solarIrradianceKwhM2":57.2,"windSpeedAvg":5.3,"relativeHumidity":81.2,"outsideTempOnHeatingDays":8.91},{"month":11,"outsideTemp":3.94,"heatingDays":30,"degreeDayNum":421,"solarIrradianceKwhM2":29.1,"windSpeedAvg":5.38,"relativeHumidity":86.3,"outsideTempOnHeatingDays":3.94},{"month":12,"outsideTemp":-0.25,"heatingDays":31,"degreeDayNum":565,"solarIrradianceKwhM2":20.1,"windSpeedAvg":5.71,"relativeHumidity":85.8,"outsideTempOnHeatingDays":-0.25}],"groundTemp1m":9.23,"groundTemp2m":9.23,"solarIrradianceKwhM2Year":1112.3,"windSpeedAvg":5.29,"relativeHumidityAvg":77.3,"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 (5.3 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:29:21.598Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}