The town of Mace's Hole was settled in 1862. The town was named for Juan Maes, anglicized to "Mace," a bandit who used the valley for a hideout. The Mace's Hole Post Office opened on April 23, 1873. A local preacher took umbrage at the town's name and suggested the biblical name Beulah as a more wholesome alternative. The name of the town was changed to Beulah on October 25, 1876. The name is a reference to Isaiah 62:4; it comes from the Hebrew for "married."
Geography and climate
Beulah is located at and lies within a valley bordered by the Wet Mountains to the west, Mt. Signal to the south and southeast, and a prominent ridge that forms the north through east sides of the valley. Elevations within the open valley itself range from about 6,150 to 7,100 feet Four creeks, North Creek, Middle Creek, Squirrel Creek, and South Creek flow through the valley. They all converge as they flow eastward; eventually combining into one at the valley's eastern end as the North St. Charles River, which flows into the St. Charles River southeast of Beulah and drains into the Arkansas River just west of Vineland. Due to its location along the east-facing foothills of the Wet Mountains, Beulah is prone to significant orographic enhancement of precipitation in the form of heavy cold-season snowfall as well as significant rain in warm months mostly due to effects of the North American Monsoon. Per the Köppen climate classification, Beulah has a humid continental climate but closely borders on up to four other subcategories depending on temperature and precipitation patterns. The average temperature in July is 71.0 °F, putting it just below the 22 °C threshold for a Dfa designation. December and January average just below freezing ; by many American interpretations of the Köppen climate system this makes it just barely too cold to qualify as a Cfa or Cfbhumid subtropical or subtropical highland climate, though such climates do exist especially to the immediate south and southeast in areas including the neighboring towns at similar elevations of Rye and Colorado City. Per the Trewartha climate classification system, Beulah clearly falls into class D as only five months of the year have a mean temperature above 10 °C and like Köppen is too wet to be classified as semi-arid or steppe found over the vast majority of eastern Colorado and the High Plains. 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 - 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 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. The record high in Beulah is 101 °F, set June 26, 1994 and tied August 2, 2008. The record low is -18 °F, set on February 2, 2011; though colder temps are much more likely from lower creek-bottom locations within the valley. Annual average precipitation is about 19.3 inches while average yearly/seasonal snowfall is about 120 inches
