{"location":{"city":"Tworkowice","voivodeship":"Podlaskie","community":"Ciechanowiec","postalCode":"18-230","latitude":52.639,"longitude":22.472,"elevation":117},"climateZone":4,"standardOutsideTemp":-22,"annualMeanTemp":8.4,"monthly":[{"month":1,"outsideTemp":-2.38,"heatingDays":31,"degreeDayNum":631,"solarIrradianceKwhM2":21.9,"windSpeedAvg":5.61,"relativeHumidity":85.6,"outsideTempOnHeatingDays":-2.38},{"month":2,"outsideTemp":-1.47,"heatingDays":28,"degreeDayNum":550,"solarIrradianceKwhM2":40,"windSpeedAvg":5.57,"relativeHumidity":83.5,"outsideTempOnHeatingDays":-1.47},{"month":3,"outsideTemp":2.22,"heatingDays":31,"degreeDayNum":489,"solarIrradianceKwhM2":83.9,"windSpeedAvg":5.59,"relativeHumidity":77.2,"outsideTempOnHeatingDays":2.22},{"month":4,"outsideTemp":8.35,"heatingDays":29,"degreeDayNum":290,"solarIrradianceKwhM2":126.2,"windSpeedAvg":5.05,"relativeHumidity":71.2,"outsideTempOnHeatingDays":8.24},{"month":5,"outsideTemp":13.77,"heatingDays":26,"degreeDayNum":138,"solarIrradianceKwhM2":162.1,"windSpeedAvg":4.92,"relativeHumidity":70.4,"outsideTempOnHeatingDays":12.76},{"month":6,"outsideTemp":17.24,"heatingDays":18,"degreeDayNum":52,"solarIrradianceKwhM2":165.3,"windSpeedAvg":4.8,"relativeHumidity":70.8,"outsideTempOnHeatingDays":15.09},{"month":7,"outsideTemp":19.37,"heatingDays":10,"degreeDayNum":19,"solarIrradianceKwhM2":164.2,"windSpeedAvg":4.59,"relativeHumidity":71.6,"outsideTempOnHeatingDays":16.14},{"month":8,"outsideTemp":18.87,"heatingDays":12,"degreeDayNum":25,"solarIrradianceKwhM2":138.8,"windSpeedAvg":4.53,"relativeHumidity":70.9,"outsideTempOnHeatingDays":15.95},{"month":9,"outsideTemp":13.93,"heatingDays":26,"degreeDayNum":126,"solarIrradianceKwhM2":88.7,"windSpeedAvg":4.9,"relativeHumidity":76.6,"outsideTempOnHeatingDays":13.28},{"month":10,"outsideTemp":8.45,"heatingDays":30,"degreeDayNum":296,"solarIrradianceKwhM2":52.7,"windSpeedAvg":5.29,"relativeHumidity":81.5,"outsideTempOnHeatingDays":8.43},{"month":11,"outsideTemp":3.47,"heatingDays":30,"degreeDayNum":435,"solarIrradianceKwhM2":23.8,"windSpeedAvg":5.35,"relativeHumidity":86.4,"outsideTempOnHeatingDays":3.47},{"month":12,"outsideTemp":-0.67,"heatingDays":31,"degreeDayNum":578,"solarIrradianceKwhM2":15.4,"windSpeedAvg":5.47,"relativeHumidity":86.9,"outsideTempOnHeatingDays":-0.67}],"groundTemp1m":8.91,"groundTemp2m":8.91,"solarIrradianceKwhM2Year":1083,"windSpeedAvg":5.14,"relativeHumidityAvg":77.7,"suitability":{"score":61,"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":"2026-05-19T12:25:48.864Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}