In the spring, Jelgava experiences mild temperatures, with April averaging 9.8°C and May reaching up to 18.3°C. The summer months are warm but relatively short, with July being the warmest at around 22.4°C. Autumn brings a significant drop in temperature, with October averaging 7.1°C and November at 2.5°C. Winters are cold and snowy, with January being the coldest month at approximately -3.8°C. The temperature fluctuations between seasons are notable, with winters often lasting longer than summers.