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~, <br />2.04.8 Climatological Information <br />' (1) The application shall contain a statement of the climatological factors <br />that are representative of the proposed permit area, including: <br />(a) The mean monthly precipitation; <br />(b) The average direction and velocity of the prevailing winds; and <br />(c) Mean monthly temperature and termperature ranges. <br />(2) The Division may for good cause shown request additional climatologi- <br />cal data as deemed necessary to ensure compliance with the requirements <br />of 2.04.8. <br />(3) Permit applications may comply with these requirements regarding <br />seasonal variability of climatological factors without the collection of data <br />covering 12 consecutive months if accurate statistical procedures, approved <br />by months if accurate statistical procedures, approved by the Division, are <br />used to extrapolate from a data base covering a shorter period of time. <br />RESPONSE <br />' (1) (2) (3) Climatological Information gathered from the Hayden <br />weather station. <br />The climate of the mine area and surrounding vicinity is <br />• characteristic of semiarid steppe regions. Typical of the mid- <br />latitudes, the wind prevails from the west and southwest. <br />The average precipitation of the mine area is approximately <br />41 centimeters (16.1 inches). Precipitation of the surrounding <br />area is as follows: <br />Average Monthly Precipitation (centimeters) <br />J F M A M J J A S 0 N ,8 TOTAL <br />(cm.) (in. ) <br />Hayden 3.2 2.9 3.3 3.8 3.7 3.1 3.2 3.0 3.2 3.7 2.8 3.4 39.4 15.5 <br />Steamboat <br />Springs 6.1 5.9 5.8 6.0 5.2 4.0 3.6 3.8 3.8 4.6 4.8 6.2 59.8 23.5 <br />Craig 2.3 2.1 2.4 3.6 3.5 3.5 2.5 3.8 2.8 3.4 2.4 2.8 35.1 13.8 <br />The growing season in the area ranges from 94 days near Craig <br />to 28 days in Steamboat Springs. In the mountain regions, freezing <br />