STATE STATION Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. Annual -------------------------------------------------------------------------------------------------------- AZ Phoenix......... 0.67 0.68 0.88 0.22 0.12 0.13 0.83 0.96 0.86 0.65 0.66 1.00 7.66 CO Denver ......... 0.50 0.57 1.28 1.71 2.40 1.79 1.91 1.51 1.24 0.98 0.87 0.64 15.40 ID Boise .......... 1.45 1.07 1.29 1.24 1.08 0.81 0.35 0.43 0.80 0.75 1.48 1.36 12.11 MT Great Falls .... 0.91 0.57 1.10 1.41 2.52 2.39 1.24 1.54 1.24 0.78 0.66 0.85 15.21 NV Reno ........... 1.07 0.99 0.71 0.38 0.69 0.46 0.28 0.32 0.39 0.38 0.87 0.99 7.53 NM Albuquerque..... 0.44 0.46 0.54 0.52 0.50 0.59 1.37 1.64 1.00 0.89 0.43 0.50 8.88 UT Salt Lake City.. 1.11 1.23 1.91 2.12 1.80 0.93 0.81 0.86 1.28 1.44 1.29 1.40 16.18 WY Cheyenne ....... 0.40 0.39 1.03 1.37 2.39 2.08 2.09 1.69 1.27 0.74 0.53 0.42 14.40
Source: Table No. 394 of the Statistical Abstract of the United States: 1995. U.S. Census Bureau.