London, Canada experiences a continental climate with distinct seasonal variations. Winters are cold and snowy, with temperatures often dropping below freezing in January and February, averaging around -6°C in the latter month. Spring arrives in March, bringing moderate temperatures that gradually warm up to averages of 8°C by April and 13°C by May. Summers are mild and pleasant, with July and August being the warmest months, averaging around 20-22°C. As autumn sets in, temperatures cool down again, with September averaging 17°C and October returning to averages similar to those in May.