Madras, OR. Relative Humidity Madras, OR. Hourly Average Relative Humidity For 1994 to 2005 Latitude: 44.69 degrees Longitude: 121.16 degrees Altitude: 997 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 87.4 87.4 87.7 87.9 88.0 88.0 88.0 87.8 86.3 83.1 79.6 76.4 74.2 73.4 73.7 75.2 79.0 82.1 83.9 84.8 85.6 86.0 86.4 87.0 83.3 Feb 85.3 85.7 86.5 87.3 87.7 87.7 87.8 86.6 82.1 76.0 70.5 66.2 63.0 60.6 59.7 60.5 64.1 70.5 74.8 76.9 79.8 82.2 83.7 84.7 77.1 Mar 78.4 79.6 80.4 81.1 81.6 82.1 81.8 76.1 68.3 61.6 56.3 51.9 48.9 46.8 45.9 46.7 49.4 54.9 61.5 65.7 69.1 72.4 75.1 77.1 66.4 Apr 80.6 82.5 84.0 84.7 85.4 85.4 79.5 70.8 63.2 57.0 51.4 47.3 44.5 42.8 42.3 42.8 45.1 50.1 57.3 63.5 68.2 71.8 74.9 77.9 64.7 May 77.9 80.2 82.1 83.4 84.3 81.5 73.7 65.9 59.5 53.6 48.6 44.3 41.6 39.8 39.3 40.2 42.6 46.8 53.2 60.3 65.4 69.3 72.6 75.8 61.7 Jun 75.2 78.3 80.3 81.8 82.2 76.4 66.4 58.9 52.3 46.7 41.8 37.8 34.9 33.4 32.9 33.8 36.2 40.0 45.8 53.4 59.6 64.2 68.1 72.0 56.4 Jul 66.0 69.3 71.9 73.8 75.2 70.1 60.2 52.1 45.5 39.8 34.9 30.6 27.3 25.4 24.4 24.7 26.7 30.0 35.4 42.8 49.0 54.0 58.1 61.6 47.9 Aug 65.4 68.5 70.7 72.7 74.5 73.6 65.1 55.4 48.0 41.7 36.1 31.2 27.5 25.3 24.3 24.6 26.4 30.4 36.6 43.8 49.4 54.1 58.2 62.0 48.6 Sep 67.5 69.6 71.3 73.2 75.1 76.4 72.5 61.9 53.2 46.8 41.3 36.6 33.0 30.6 29.6 29.8 32.2 37.8 44.8 50.1 54.5 57.9 61.4 64.8 53.0 Oct 75.5 77.2 78.7 79.8 80.7 81.9 81.5 74.7 65.2 58.1 53.3 49.2 45.6 43.5 42.7 43.9 49.0 55.6 60.2 64.1 67.8 70.7 73.7 75.3 64.5 Nov 83.9 84.3 84.3 84.7 85.1 85.2 85.6 84.5 80.4 75.0 70.7 67.4 64.1 62.6 62.7 65.4 70.8 74.4 77.0 79.4 80.8 81.6 82.3 83.2 77.3 Dec 86.1 86.3 86.8 86.7 86.6 86.6 86.5 86.4 84.9 81.4 78.0 75.2 72.8 72.0 72.7 75.1 79.5 82.2 83.6 84.5 84.8 85.3 85.5 85.7 82.3 Values in Percent Madras, OR. Daily Average Relative Humidity For 1994 to 2005 Latitude: 44.69 degrees Longitude: 121.16 degrees Altitude: 997 meters Year\Mth Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Yearly 1994 ---- ---- ---- ---- ---- ---- 42.4 51.7 51.1 62.5 69.0 68.5 ---- 1995 77.6 72.3 59.6 62.5 60.2 61.6 58.3 51.9 56.1 65.4 78.8 89.7 66.2 1996 83.3 81.3 74.4 68.4 69.0 59.4 46.1 44.5 59.2 68.0 82.8 86.2 68.5 1997 85.7 83.0 65.4 67.5 63.2 65.4 56.8 56.9 64.6 69.7 86.3 85.5 70.8 1998 85.4 78.0 76.5 74.5 81.0 69.0 58.0 52.6 58.5 71.4 83.7 76.4 72.1 1999 81.0 72.7 69.5 63.4 56.1 56.4 46.5 54.7 44.2 58.2 74.8 80.1 63.1 2000 85.9 87.8 69.1 61.7 57.9 46.6 50.7 46.3 54.6 68.5 82.2 87.6 66.5 2001 85.9 79.5 66.3 64.1 47.1 54.3 47.8 47.3 47.2 60.0 75.1 83.0 63.1 2002 78.0 65.2 60.9 57.1 53.4 49.7 43.2 44.1 46.7 60.3 66.1 81.5 58.8 2003 86.4 72.9 63.3 66.8 61.0 47.6 37.0 46.4 47.8 57.9 74.6 85.1 62.2 2004 85.9 79.1 62.3 60.9 62.3 52.1 44.0 48.4 56.8 63.3 74.3 79.7 64.1 2005 81.2 75.6 62.0 65.6 68.0 58.2 43.6 37.8 49.4 67.8 80.0 84.1 64.4 Average 83.3 77.0 66.3 64.8 61.7 56.4 47.9 48.6 53.0 64.4 77.3 82.3 65.2 % SD 4 8 8 7 14 13 14 11 12 7 8 7 6 Values in average daily Percent * Less than 15 days of data in month. Univ. of Oregon Solar Monitoring Lab.