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Valleycity, and Wahweap soil are shallow and are predominantly support sagebrush types and some low <br />• <br />productivity irrigated pasture. See Section 2.04.9, "Soil Resource Information," for a detailed soils discussion <br />Climate. The Nucla area is characterized by interior continental weather patterns resulting in a semiarid <br />climate. Precipitation is scattered throughout the year, though the highest amounts are received during the <br />summer months. Snowfall does not normally contribute significantly to the yearly totals received. For the <br />years 1961 through 1975, the Uravan Station recorded average annual precipitation of 12.24 inches. Average <br />annual precipitation at Uravan for the year 1978 through 1986 was 14.38 inches, indicating a wetter <br />precipitation cycle at this time. Table2.04.10-l details the precipitation receivedattheUravanStation,located <br />13 miles northwest of Nucla, for the months January through October in 1987 and January through April 1999. <br />Temperatures in the Nucla area are generally moderate throughout the year, though summers can be hot. <br />The average annual mean temperature for the Uravan Station is 48°F. Table 2.04.10-2 presents temperature <br />data from the Uravan Station for the months January through October in 1987 and January through April 1999. <br />May through August 1999 showed much higher rainfall than average with most stations in western Colorado <br />reporting precipitation more than 178% of normal. <br />The semiarid climate, with sunny days predominating and low relative humidities, results in high <br />evapotranspiration rates. The frost free period is approximately 150 days. Further information on climate may <br />• be found in Section 2.04.8, Climatological Information. <br />u <br />(REVISED 8/15/00) 2.04.10 - 4 <br />