Bellevue's winters are harsh, with temperatures often dropping below freezing and averaging around -8°C in February. Spring brings a slow warming trend, with March being the first month to see significant increases in temperature, reaching an average of 8°C. Summer months of June, July, and August are relatively mild, with temperatures rarely dipping below 12°C and topping out at around 41°C in June. Autumn is characterized by a gradual cooling trend, with September averaging 21°C before dropping back down to around 14°C in October. The coldest months, December and January, see temperatures hover around the freezing point, while February is often the chilliest month of the year.