Mielec's winters are cold, with temperatures often below freezing and averaging around -1°C. Spring arrives in March with mild temperatures, gradually warming up throughout the season, with April and May seeing a significant increase in temperature averages. Summer months of June to August bring warm days, with July being the hottest month, but temperatures remain relatively stable. Autumn is cool, with September being slightly warmer than October and November, which sees temperatures drop back down towards freezing point. Winters return, similar to those at the start of the year, with cold temperatures persisting throughout December.