{"location":{"city":"Wilczyniec","voivodeship":"Wielkopolskie","community":"Jarocin","postalCode":"63-230","latitude":51.9104,"longitude":17.5771,"elevation":132},"climateZone":2,"standardOutsideTemp":-18,"annualMeanTemp":9.4,"monthly":[{"month":1,"outsideTemp":-0.72,"heatingDays":31,"degreeDayNum":580,"solarIrradianceKwhM2":23.7,"windSpeedAvg":5.9,"relativeHumidity":83.7,"outsideTempOnHeatingDays":-0.72},{"month":2,"outsideTemp":0.38,"heatingDays":28,"degreeDayNum":498,"solarIrradianceKwhM2":42.3,"windSpeedAvg":5.83,"relativeHumidity":80.5,"outsideTempOnHeatingDays":0.38},{"month":3,"outsideTemp":3.61,"heatingDays":31,"degreeDayNum":446,"solarIrradianceKwhM2":85.2,"windSpeedAvg":5.78,"relativeHumidity":76,"outsideTempOnHeatingDays":3.61},{"month":4,"outsideTemp":8.99,"heatingDays":29,"degreeDayNum":271,"solarIrradianceKwhM2":131.5,"windSpeedAvg":5.31,"relativeHumidity":69.9,"outsideTempOnHeatingDays":8.84},{"month":5,"outsideTemp":13.94,"heatingDays":26,"degreeDayNum":134,"solarIrradianceKwhM2":160.8,"windSpeedAvg":5.13,"relativeHumidity":68.9,"outsideTempOnHeatingDays":12.92},{"month":6,"outsideTemp":17.52,"heatingDays":17,"degreeDayNum":49,"solarIrradianceKwhM2":164.6,"windSpeedAvg":5.08,"relativeHumidity":67.8,"outsideTempOnHeatingDays":15.15},{"month":7,"outsideTemp":19.57,"heatingDays":10,"degreeDayNum":18,"solarIrradianceKwhM2":163.5,"windSpeedAvg":4.97,"relativeHumidity":68.1,"outsideTempOnHeatingDays":16.25},{"month":8,"outsideTemp":19.42,"heatingDays":10,"degreeDayNum":20,"solarIrradianceKwhM2":141.1,"windSpeedAvg":4.76,"relativeHumidity":67.5,"outsideTempOnHeatingDays":16.04},{"month":9,"outsideTemp":14.68,"heatingDays":25,"degreeDayNum":108,"solarIrradianceKwhM2":92.2,"windSpeedAvg":5.1,"relativeHumidity":73.5,"outsideTempOnHeatingDays":13.74},{"month":10,"outsideTemp":9.57,"heatingDays":30,"degreeDayNum":261,"solarIrradianceKwhM2":55.5,"windSpeedAvg":5.36,"relativeHumidity":79.6,"outsideTempOnHeatingDays":9.54},{"month":11,"outsideTemp":4.59,"heatingDays":30,"degreeDayNum":402,"solarIrradianceKwhM2":26.7,"windSpeedAvg":5.43,"relativeHumidity":85.6,"outsideTempOnHeatingDays":4.59},{"month":12,"outsideTemp":0.74,"heatingDays":31,"degreeDayNum":535,"solarIrradianceKwhM2":18,"windSpeedAvg":5.72,"relativeHumidity":85.3,"outsideTempOnHeatingDays":0.74}],"groundTemp1m":9.79,"groundTemp2m":9.79,"solarIrradianceKwhM2Year":1105,"windSpeedAvg":5.36,"relativeHumidityAvg":75.5,"suitability":{"score":74,"rating":"good","color":"lime","estimatedScop":4.2,"notes":["Wysokie nasłonecznienie — bardzo dobre warunki dla hybrydy pompa ciepła + PV.","Wysoka średnia prędkość wiatru (5.4 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:09:14.312Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}