{"location":{"city":"Milejczyce","voivodeship":"Podlaskie","community":"Gmina Milejczyce","postalCode":"17-331","latitude":52.5194,"longitude":23.1316,"elevation":166},"climateZone":4,"standardOutsideTemp":-22,"annualMeanTemp":8.2,"monthly":[{"month":1,"outsideTemp":-2.71,"heatingDays":31,"degreeDayNum":642,"solarIrradianceKwhM2":22.3,"windSpeedAvg":5.63,"relativeHumidity":86,"outsideTempOnHeatingDays":-2.71},{"month":2,"outsideTemp":-1.78,"heatingDays":28,"degreeDayNum":559,"solarIrradianceKwhM2":40.3,"windSpeedAvg":5.59,"relativeHumidity":83.8,"outsideTempOnHeatingDays":-1.78},{"month":3,"outsideTemp":1.93,"heatingDays":31,"degreeDayNum":498,"solarIrradianceKwhM2":84.5,"windSpeedAvg":5.61,"relativeHumidity":77.6,"outsideTempOnHeatingDays":1.93},{"month":4,"outsideTemp":8.17,"heatingDays":29,"degreeDayNum":295,"solarIrradianceKwhM2":126.3,"windSpeedAvg":5.11,"relativeHumidity":70.9,"outsideTempOnHeatingDays":8.06},{"month":5,"outsideTemp":13.72,"heatingDays":26,"degreeDayNum":140,"solarIrradianceKwhM2":161.7,"windSpeedAvg":5,"relativeHumidity":69.4,"outsideTempOnHeatingDays":12.73},{"month":6,"outsideTemp":17.19,"heatingDays":18,"degreeDayNum":54,"solarIrradianceKwhM2":165.3,"windSpeedAvg":4.84,"relativeHumidity":69.8,"outsideTempOnHeatingDays":15.05},{"month":7,"outsideTemp":19.29,"heatingDays":10,"degreeDayNum":21,"solarIrradianceKwhM2":163.4,"windSpeedAvg":4.65,"relativeHumidity":70.9,"outsideTempOnHeatingDays":16.03},{"month":8,"outsideTemp":18.72,"heatingDays":12,"degreeDayNum":27,"solarIrradianceKwhM2":139.2,"windSpeedAvg":4.56,"relativeHumidity":70.4,"outsideTempOnHeatingDays":15.82},{"month":9,"outsideTemp":13.71,"heatingDays":27,"degreeDayNum":133,"solarIrradianceKwhM2":89,"windSpeedAvg":4.93,"relativeHumidity":76.4,"outsideTempOnHeatingDays":13.1},{"month":10,"outsideTemp":8.2,"heatingDays":30,"degreeDayNum":303,"solarIrradianceKwhM2":53.3,"windSpeedAvg":5.31,"relativeHumidity":81.6,"outsideTempOnHeatingDays":8.18},{"month":11,"outsideTemp":3.21,"heatingDays":30,"degreeDayNum":443,"solarIrradianceKwhM2":24.3,"windSpeedAvg":5.37,"relativeHumidity":86.4,"outsideTempOnHeatingDays":3.21},{"month":12,"outsideTemp":-1,"heatingDays":31,"degreeDayNum":588,"solarIrradianceKwhM2":15.7,"windSpeedAvg":5.49,"relativeHumidity":87.3,"outsideTempOnHeatingDays":-1}],"groundTemp1m":8.83,"groundTemp2m":8.83,"solarIrradianceKwhM2Year":1085.3,"windSpeedAvg":5.18,"relativeHumidityAvg":77.5,"suitability":{"score":58,"rating":"fair","color":"yellow","estimatedScop":4.1,"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":"2026-05-19T12:08:52.848Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}