Willamette, HS Solar Cell Temperature Willamette, HS Hourly Average Solar Cell Temperature For 2002 to 2013 Latitude: 44.08 degrees Longitude: 123.17 degrees Altitude: 140 meters Mon\Hr 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Avg Jan 3.9 3.8 3.7 3.6 3.5 3.4 3.4 3.5 5.3 9.4 13.3 16.4 18.1 17.8 16.3 13.3 9.4 6.4 5.5 5.0 4.7 4.5 4.3 4.1 7.6 Feb 3.5 3.3 3.0 2.9 2.9 2.9 2.9 3.6 7.3 12.4 17.6 21.0 23.0 22.9 21.7 18.6 14.5 9.2 6.7 5.8 5.1 4.6 4.2 3.9 9.3 Mar 5.3 5.0 4.7 4.6 4.5 4.4 4.7 7.1 12.1 17.3 21.5 24.5 26.2 26.2 24.2 21.7 17.6 13.1 9.5 8.1 7.2 6.5 6.0 5.6 12.0 Apr 6.3 5.9 5.6 5.3 5.2 5.2 6.8 11.0 16.9 22.1 26.2 29.6 30.8 30.9 28.6 25.0 20.9 16.2 12.5 10.1 8.8 8.0 7.3 6.7 14.6 May 9.0 8.5 8.1 7.7 7.5 8.3 10.8 15.5 21.3 26.8 30.8 33.8 35.2 34.8 33.2 30.1 25.7 20.8 17.5 14.4 12.4 11.3 10.4 9.7 18.5 Jun 11.8 11.3 10.8 10.4 10.3 11.4 13.9 18.1 23.7 29.2 33.5 36.4 38.4 38.5 37.4 34.3 30.0 24.9 21.7 18.3 15.9 14.5 13.4 12.6 21.7 Jul 14.5 13.7 13.0 12.5 12.1 12.9 15.4 20.3 27.5 34.5 40.1 44.5 46.9 47.3 45.8 42.4 37.4 31.3 27.2 23.2 20.0 18.1 16.7 15.5 26.4 Aug 14.2 13.5 12.9 12.4 12.0 12.1 14.3 19.9 27.5 34.9 41.1 45.5 47.6 48.0 45.8 41.9 36.6 30.1 25.0 21.3 19.0 17.3 16.0 15.0 26.0 Sep 11.8 11.2 10.7 10.3 10.0 9.8 11.0 17.2 25.4 32.6 38.4 41.9 43.9 43.7 41.3 37.1 31.2 24.4 19.4 16.9 15.4 14.2 13.3 12.5 22.6 Oct 8.2 7.9 7.7 7.5 7.3 7.3 7.6 10.7 17.0 23.3 28.0 31.1 32.9 32.4 30.4 26.1 20.3 14.4 12.0 11.0 10.1 9.4 8.8 8.4 15.8 Nov 5.7 5.6 5.5 5.4 5.3 5.4 5.4 6.0 9.2 13.5 17.1 19.7 20.5 20.5 18.6 15.1 10.5 8.1 7.4 6.9 6.6 6.3 6.1 5.9 9.8 Dec 3.6 3.5 3.4 3.3 3.3 3.2 3.3 3.4 4.9 8.3 11.7 13.9 15.1 14.5 13.0 10.3 6.8 5.3 4.8 4.5 4.2 4.0 3.8 3.7 6.5 Values in Degrees Celsius Willamette, HS Daily Average Solar Cell Temperature For 2002 to 2013 Latitude: 44.08 degrees Longitude: 123.17 degrees Altitude: 140 meters Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Yearly 2002 ---- ---- ---- ---- 17.5 22.1 26.6 26.1 23.4 16.1 11.1 7.8 ---- 2003 9.6 9.8 12.5 13.5 18.9 23.7 28.2 26.6 23.6 17.4 8.9 7.5 16.7 2004 7.2 9.3 14.8 16.6 19.0 22.2 27.4 26.5 20.6 16.1 10.0 7.6 16.4 2005 8.1 9.6 14.4 14.9 18.6 20.6 26.6 27.0 22.5 16.4 8.1 6.5 16.1 2006 7.9 9.5 10.4 15.5 19.5 22.8 26.6 25.6 23.3 15.9 9.5 6.5 16.1 2007 6.9 9.1 14.4 15.5 18.9 21.6 26.1 25.5 21.5 14.2 9.0 6.0 15.8 2008 5.1 9.4 10.1 12.7 18.9 20.4 25.8 25.1 22.6 15.3 11.6 5.7 15.2 2009 7.2 8.7 10.1 14.6 19.6 22.1 27.3 25.3 22.8 15.5 10.0 4.8 15.7 2010 9.4 11.4 11.6 14.0 16.7 20.4 25.8 25.1 21.8 16.1 9.7 8.1 15.9 2011 8.8 7.7 10.2 12.7 16.1 20.6 23.9 26.5 24.9 15.6 9.5 5.9 15.2 2012 7.9 8.6 9.6 15.0 18.4 20.3 24.8 26.6 23.8 16.6 11.0 6.9 15.8 2013 5.7 9.2 13.7 16.3 19.7 23.6 27.2 25.8 20.9 14.7 9.8 4.7 16.0 Average 7.6 9.3 12.0 14.7 18.5 21.7 26.4 26.0 22.6 15.8 9.8 6.5 15.9 % SD 19 10 17 9 6 6 4 3 6 5 10 17 3 Values in average daily Degrees Celsius * Less than 15 days of data in month. Univ. of Oregon Solar Radiation Monitoring Lab.