Parkersburg experiences a continental climate with significant seasonal variation. Winters are harsh, with temperatures often below freezing and averaging around 1°C in January, the coldest month. Spring arrives in March, bringing warmer temperatures that rapidly rise to averages of 12°C by April. Summers are mild, with July and August being the warmest months, averaging highs just above 24°C. Autumn brings a return to cooler temperatures, with November marking the start of a slow decline into winter's chill.