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Meteorological Data <br />Data from the National Climatic Data Center's (NCDC) Hayden Station are <br />used to evaluate the precipitation trend. These data are provided in <br />Appendix Al. Precipitation data are summarized on Table 2. For this <br />year, 18.43 inches of precipitation was measured, which is 0.17 inches <br />(1%) above the 1981-2015 average, 18.26 inches. All months except <br />October, February, March, June, July, August, and September were above <br />average. Snowpack runoff, as estimated by totaling November through <br />March precipitation values, was 9.66 inches, which was 2.29 inches (31%) <br />above the 1981-2015 average, 7.37 inches. <br />4 <br />