Winters in Panevezys are harsh and cold, with temperatures often dropping below -20°C in January and February. The spring season brings a slow warming trend, with temperatures gradually increasing by as much as 15°C between March and May. Summer is warm to hot, with July being the warmest month, but even then, nighttime temperatures can still be around 9°C. Autumn is relatively mild, with temperatures similar to those in spring, before dropping again into winter. The temperature fluctuations are quite significant throughout the year, resulting in distinct seasonal changes.