{"location":{"city":"Kamień Łukawski","voivodeship":"Świętokrzyskie","community":"Gmina Dwikozy","postalCode":"27-620","latitude":50.6886,"longitude":21.7883,"elevation":200},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":8.9,"monthly":[{"month":1,"outsideTemp":-2.1,"heatingDays":31,"degreeDayNum":623,"solarIrradianceKwhM2":27.2,"windSpeedAvg":5.22,"relativeHumidity":83.3,"outsideTempOnHeatingDays":-2.1},{"month":2,"outsideTemp":-0.92,"heatingDays":28,"degreeDayNum":534,"solarIrradianceKwhM2":45.7,"windSpeedAvg":5.22,"relativeHumidity":81.4,"outsideTempOnHeatingDays":-0.92},{"month":3,"outsideTemp":2.91,"heatingDays":31,"degreeDayNum":467,"solarIrradianceKwhM2":89,"windSpeedAvg":5.31,"relativeHumidity":75.6,"outsideTempOnHeatingDays":2.91},{"month":4,"outsideTemp":8.92,"heatingDays":29,"degreeDayNum":272,"solarIrradianceKwhM2":130.2,"windSpeedAvg":4.87,"relativeHumidity":70.4,"outsideTempOnHeatingDays":8.8},{"month":5,"outsideTemp":14.18,"heatingDays":26,"degreeDayNum":126,"solarIrradianceKwhM2":161,"windSpeedAvg":4.71,"relativeHumidity":70.7,"outsideTempOnHeatingDays":13.11},{"month":6,"outsideTemp":17.69,"heatingDays":16,"degreeDayNum":44,"solarIrradianceKwhM2":166.2,"windSpeedAvg":4.53,"relativeHumidity":71.3,"outsideTempOnHeatingDays":15.28},{"month":7,"outsideTemp":19.65,"heatingDays":9,"degreeDayNum":16,"solarIrradianceKwhM2":163,"windSpeedAvg":4.37,"relativeHumidity":71.1,"outsideTempOnHeatingDays":16.21},{"month":8,"outsideTemp":19.27,"heatingDays":10,"degreeDayNum":21,"solarIrradianceKwhM2":143.2,"windSpeedAvg":4.16,"relativeHumidity":70.6,"outsideTempOnHeatingDays":15.99},{"month":9,"outsideTemp":14.3,"heatingDays":26,"degreeDayNum":118,"solarIrradianceKwhM2":94.3,"windSpeedAvg":4.58,"relativeHumidity":75.7,"outsideTempOnHeatingDays":13.51},{"month":10,"outsideTemp":8.92,"heatingDays":30,"degreeDayNum":281,"solarIrradianceKwhM2":59.2,"windSpeedAvg":4.78,"relativeHumidity":80.3,"outsideTempOnHeatingDays":8.89},{"month":11,"outsideTemp":3.91,"heatingDays":30,"degreeDayNum":422,"solarIrradianceKwhM2":30.2,"windSpeedAvg":4.9,"relativeHumidity":84.4,"outsideTempOnHeatingDays":3.91},{"month":12,"outsideTemp":-0.46,"heatingDays":31,"degreeDayNum":572,"solarIrradianceKwhM2":20.5,"windSpeedAvg":5.08,"relativeHumidity":84.3,"outsideTempOnHeatingDays":-0.46}],"groundTemp1m":9.14,"groundTemp2m":9.14,"solarIrradianceKwhM2Year":1129.7,"windSpeedAvg":4.81,"relativeHumidityAvg":76.6,"suitability":{"score":67,"rating":"good","color":"lime","estimatedScop":4.1,"notes":["Wysokie nasłonecznienie — bardzo dobre warunki dla hybrydy pompa ciepła + PV."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:09:10.394Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}