Winters in Spring Valley are cold, with temperatures often below freezing and averaging around 2-1°C. March marks the beginning of a warming trend, with temperatures rising to an average of 7°C by month's end. As spring progresses, temperatures continue to rise, reaching averages of 12-16°C in April and May. Summers are mild, with July and August being the warmest months, averaging around 24-25°C. Autumn brings a return to cooler temperatures, with averages dropping back down to 8-6°C by November and December.