Gridded estimates of climate parameters 31, 31a a more representative depiction of WyomingĬlimate has been achieved. Point data and a digital elevation model (DEM) to generate However by using PRISM, (Parameter-Elevation Regressions on Independent Slopes Model) an expert system that uses Certainly the spacing of these stations would notĪllow for the accurate resolution of any climate element such as precipitation. Record precipitation events in Wyoming (inches)įrom 1961-1990 (the previous Normals period), there were about 130 stations across Wyoming that had a continuousĬlimate record. The long-term (1895-2003) statewide average rainfall is 13.07 inches. Is 55.46 inches at Grassy Lake Dam (7,240 feet) in 1945 Recorded, for any place in Wyoming is 1.28 inches at Lysite (5,260 feet) in 1960 and the greatest, annual lower elevation total In the southern part of the basin, Worland at 4,172 feet has an annual mean of eight inchesĪs compared with Thermopolis at 4,313 feet with 12 inches. Showing the least amount is Lovell at 3,837 feet with an annual mean of about 6.74 inches. The basin has an annual rainfall of 5 to 8 inches, and is the driest part of the state. The flow of moisture-laden air from the east as well as from the west. The Bighorn basin provides a striking example of the effect of mountain ranges in blocking The relatively dry southwest portion is a high plateau nearly surrounded by mountain Where the elevations range mostly from 4,000 to 5,500 feet, annual averages are 12 to 16 At lower elevations over the northeast and along the eastern border, Portion of the state, the elevation ranges from 6,500 to 8,500 feet, and annual rainfall variesįrom seven to 10 inches. Rainfall is greater over the mountain ranges and usually at the higher elevations, althoughĮlevation alone is not the predominant influence. The period of maximum rainfall occurs in the spring and early summer for most of the state. Have some limitations over the intermountain west, but some data are still better than no data. With a limited number of weather stations reporting rainfall, estimates from weather radar 30 Like other states in the west, precipitation 29 varies a great
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