Winters in Daugavpils are harsh, with temperatures often dropping below -20°C and averaging around -4°C in January. The cold weather persists through February, but temperatures start to rise slightly by March, still averaging just above freezing. Spring brings a gradual warming trend, with April and May seeing average highs of 6-11°C and occasional warmth up to 18-23°C. Summer is mild, with June and July averages around 19-22°C, while August cools down to 16°C. Autumn returns the region to cooler temperatures, with September and October averaging around 10-7°C, before winter's chill sets in once more by November and December.