Dillon, MT. Diffuse Values Dillon, MT. Hourly Average Diffuse Values For 2002 to 2010 Latitude: 45.21 degrees Longitude: 112.64 degrees Altitude: 1590 meters Mon\Hr 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Total Jan 0 0 0 0 0 24 75 122 153 166 161 133 92 41 4 0 0 0 972 Feb 0 0 0 0 7 54 112 167 194 201 196 177 141 83 27 1 0 0 1360 Mar 0 0 0 5 47 112 166 213 244 251 252 219 186 133 70 13 0 0 1909 Apr 0 0 3 39 95 148 199 238 266 281 274 249 216 163 103 43 3 0 2321 May 0 1 23 72 123 169 212 248 263 280 282 257 229 185 126 71 20 0 2560 Jun 0 2 33 78 118 163 191 213 229 233 241 228 207 174 130 81 35 3 2358 Jul 0 1 22 59 89 114 129 147 159 175 180 174 165 142 110 75 31 2 1775 Aug 0 0 7 44 83 120 152 174 190 199 192 178 163 131 94 50 10 0 1785 Sep 0 0 0 18 62 98 130 158 175 180 169 163 135 98 55 13 0 0 1455 Oct 0 0 0 2 33 84 124 153 167 177 168 138 104 61 15 0 0 0 1226 Nov 0 0 0 0 8 47 92 126 146 151 139 114 76 27 1 0 0 0 927 Dec 0 0 0 0 0 23 74 115 143 160 147 113 68 18 0 0 0 0 862 Values in Watt hours/meter^2 per hour Dillon, MT. Daily Average Diffuse Values For 2002 to 2010 Latitude: 45.21 degrees Longitude: 112.64 degrees Altitude: 1590 meters Year\Mth Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Yearly 2002 ---- ---- ---- ---- ---- ---- ---- ---- ---- 1.05 0.99 0.86 ---- 2003 0.92 1.46 2.18 2.20 2.55 2.30 1.61 1.83 1.44 1.23 0.90 0.86 1.62 2004 1.08 1.35 1.82 2.18 2.98 2.31 1.94 1.79 1.52 1.15 0.82 0.88 1.65 2005 1.01 0.95 1.91 2.44 2.50 2.52 1.68 1.57 1.49 1.23 0.89 0.83 1.59 2006 1.00 1.29 2.07 2.14 2.22 2.33 1.79 1.75 1.46 1.24 0.97 0.78 1.59 2007 0.80 1.71 1.65 2.33 2.43 2.03 1.88 2.06 1.51 1.16 0.87 0.88 1.61 2008 1.08 1.34 1.97* ---- 2.82 2.37 1.84 1.60 1.57 1.16* 0.91 0.95 ---- 2009 0.88 1.14* 1.31* 3.05* 2.19 2.61 2.03 2.07 1.29 1.52 0.86 0.84 1.65 2010 1.00 1.46 1.88 2.48 2.82 2.45 1.44 1.63 1.38 1.19 1.10 0.88 1.64 Average 0.97 1.34 1.85 2.40 2.56 2.37 1.77 1.79 1.46 1.21 0.93 0.86 1.63 % SD 10 17 15 13 11 7 11 11 6 11 9 5 2 Values in average daily KWhr/meter^2 per Day * Less than 15 days of data in month. Univ. of Oregon Solar Radiation Monitoring Lab.