Red Deer's winters are harsh, with temperatures often dropping below -40°C in January and February, but gradually warming up by March. Spring arrives slowly, with April and May experiencing mild temperatures around 9-17°C, allowing for a brief period of warmth before the summer heat sets in. Summer is warm to hot, with July and August averaging highs around 18-20°C, but temperatures can soar above 30°C on occasion. Autumn brings a return to cooler temperatures, with September and October experiencing moderate temperatures around 4-12°C, eventually giving way to winter's chill by November and December.