Eugene, OR. Global Data on a 90° Tilt Facing North Eugene, OR. Hourly Average Global Data on a 90° Tilt Facing North For 1988 to 2010 Latitude: 44.05 degrees Longitude: 123.07 degrees Altitude: 150 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 1 12 27 38 44 45 41 33 21 7 0 0 0 0 268 Feb 0 0 0 0 7 25 41 52 57 59 55 47 36 21 4 0 0 0 403 Mar 0 0 0 6 25 45 61 69 73 73 71 63 52 37 18 2 0 0 592 Apr 0 0 8 33 49 66 77 85 86 87 84 77 68 53 41 18 0 0 832 May 0 3 42 73 71 79 88 90 91 90 86 81 75 69 81 70 6 0 1096 Jun 0 10 75 95 83 79 87 89 89 87 82 79 73 75 112 121 20 0 1256 Jul 0 5 83 109 78 67 70 68 66 63 60 59 58 59 108 139 29 0 1122 Aug 0 0 24 60 51 57 61 59 57 56 54 53 53 48 57 56 4 0 751 Sep 0 0 2 19 36 48 53 54 54 53 50 49 45 36 21 4 0 0 524 Oct 0 0 0 4 21 37 48 55 57 54 49 42 32 18 3 0 0 0 421 Nov 0 0 0 0 6 22 36 45 48 46 40 31 18 4 0 0 0 0 296 Dec 0 0 0 0 1 11 25 36 41 40 36 26 14 2 0 0 0 0 232 Values in Watt hours/meter^2 per hour Eugene, OR. Daily Average Global Data on a 90° Tilt Facing North For 1988 to 2010 Latitude: 44.05 degrees Longitude: 123.07 degrees Altitude: 150 meters Year\Mth Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Yearly 1988 ---- ---- ---- ---- ---- ---- ---- 0.55* 0.52 0.47 0.30 0.26 ---- 1989 0.29 0.43 0.63 0.77 1.12 1.27 1.16 0.83 0.52 0.44 0.33 0.25 0.67 1990 0.27 0.40 0.60 0.85 1.14 1.35 1.25 0.85 0.58 0.46 0.32 0.28 0.70 1991 0.26 0.41 0.60 0.87 1.09 1.28 1.16 0.82 0.53 0.40 0.29 0.23 0.66 1992 0.29 0.41 0.60 0.95 1.21 1.31 1.25 0.86 0.67 0.44 0.33 0.23 0.71 1993 0.29 0.42 0.59 0.88 1.13 1.36 1.26 0.82 0.56 0.48 0.30 0.23 0.69 1994 0.28 0.41 0.56 0.93 1.08 1.34 1.19 0.87 0.59 0.44 0.30 0.25 0.69 1995 0.28 0.45 0.61 0.81 1.10 1.23 1.15 0.74 0.57 0.42 0.27 0.22 0.66 1996 0.26 0.37 0.60 0.84 1.14 1.35 1.10 0.73 0.53 0.44 0.30 0.20 0.66 1997 0.26 0.39 0.58 0.79 1.08 1.25 1.13 0.70 0.52 0.45 0.31 0.25 0.64 1998 0.26 0.42 0.57 0.85 1.00 1.22 1.06 0.67 0.47 0.40 0.32 0.22 0.62 1999 0.27 0.41 0.60 0.83 1.08 1.30 1.10 0.74 0.40 0.35 0.28 0.22 0.63 2000 0.24 0.37 0.59 0.82 1.14 1.19 1.11 0.72 0.52 0.39 0.30 0.23 0.64 2001 0.27 0.40 0.57 0.89 1.04 1.26 1.14 0.71 0.47 0.37 0.26 0.24 0.64 2002 0.28 0.41 0.60 0.74 1.08 1.24 1.08 0.73 0.49 0.37 0.26 0.21 0.63 2003 0.24 0.38 0.58 0.85 1.12 1.25 1.02 0.70 0.50 0.42 0.27 0.23 0.63 2004 0.28 0.40 0.54 0.74 1.05 1.10 1.04 0.71 0.53 0.40 0.30 0.23 0.61 2005 0.26 0.35 0.53 0.83 0.99 1.17 1.04 0.66 0.47 0.47 0.29 0.21 0.61 2006 0.25 0.40 0.64 0.75 0.96 1.22 1.04 0.71 0.48 0.38 0.27 0.24 0.61 2007 0.25 0.39 0.56 0.78 1.03 1.21 1.09 0.71 0.48 0.44 0.29 0.23 0.62 2008 0.26 0.40 0.61 0.84 1.02 1.21 1.10 0.77 0.51 0.41 0.29 0.24 0.64 2009 0.27 0.42 0.60 0.76 1.02 1.19 1.03 0.72 0.53 0.40 0.30 0.21 0.62 2010 0.30 0.39 0.63 0.89 1.29 1.33 1.16 0.83 0.58 0.44 0.32 0.25 0.70 Average 0.27 0.40 0.59 0.83 1.09 1.26 1.12 0.75 0.52 0.42 0.30 0.23 0.65 % SD 6 5 5 7 7 5 6 10 10 8 7 8 5 Values in average daily KWhr/meter^2 per Day * Less than 15 days of data in month. Univ. of Oregon Solar Radiation Monitoring Lab.