Summers are mild with cool nights; daily minimum temperatures at or above 60 °F occur on only about six days per year. High temperatures of 90 °F or higher occur on about 33 days. The growing season is about 140 days in length from the first half of May until the end of September. Winters are mild and can feature days with temperatures exceeding 70 °F - the most recent of which occurred February 6, 2015 (high of 72 °F) - but periods of several consecutive days below freezing can occur and snow can fall from September through late May. Thunderstorms are common in warm months, averaging 42 days per year; hail falls on about five days. Severe thunderstorms can affect the valley, mostly with large hail (notably June 20, 2001, with hail to over two inches in diameter falling in the valley) but tornadoes have been sighted near the valley, especially in the moist months of July and August. As of June 2015 no tornado has directly struck Beulah itself.