Danbury's winters are cold and snowy, with temperatures often below freezing from January to March. As spring approaches, temperatures gradually warm up, reaching averages around 10°C in April and 14°C by May. Summer months are mild, with highs rarely exceeding 35°C, and temperatures remain relatively stable throughout June, July, and August. Autumn brings a return to cooler temperatures, with averages dipping back down to around 4°C by November. Winters then set in once again, with temperatures ranging from -10°C to 18°C from December through February.