Boise, ID. Global Data on a 25° Tilt Facing Southwest Boise, ID. Hourly Average Global Data on a 25° Tilt Facing Southwest For 1994 to 2006 Latitude: 43.62 degrees Longitude: 116.21 degrees Altitude: 701 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 12 82 179 279 347 360 328 255 142 21 0 0 0 2005 Feb 0 0 0 0 2 42 161 305 436 518 554 532 441 319 138 7 0 0 3455 Mar 0 0 0 1 24 111 260 422 568 653 677 642 543 407 235 58 0 0 4603 Apr 0 0 0 18 66 202 375 535 656 740 760 735 651 507 339 144 13 0 5742 May 0 0 8 41 108 265 443 608 738 814 829 792 702 566 403 219 55 1 6589 Jun 0 0 13 42 114 284 471 648 786 875 906 865 769 636 464 278 101 7 7260 Jul 0 0 8 33 90 265 462 647 805 906 951 934 843 700 509 307 110 7 7576 Aug 0 0 1 22 68 233 432 624 785 890 930 911 826 679 469 243 46 0 7160 Sep 0 0 0 7 44 192 388 578 736 831 866 823 714 544 329 90 2 0 6143 Oct 0 0 0 1 21 135 309 482 616 684 694 645 540 365 126 4 0 0 4622 Nov 0 0 0 0 3 53 162 281 381 438 442 391 288 138 10 0 0 0 2587 Dec 0 0 0 0 0 16 90 186 280 331 339 297 212 85 2 0 0 0 1838 Values in Watt hours/meter^2 per hour Boise, ID. Daily Average Global Data on a 25° Tilt Facing Southwest For 1994 to 2006 Latitude: 43.62 degrees Longitude: 116.21 degrees Altitude: 701 meters Year\Mth Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Yearly 1994 ---- ---- ---- ---- ---- 7.64 7.60 7.38 6.35 4.28 2.25 1.65 ---- 1995 2.01 3.77 4.02 5.54 6.00 6.36 7.36 7.15 6.09 4.78 2.12 1.47 4.72 1996 2.04 3.24 4.48 5.68 6.64 7.29 7.56 7.19 5.86 4.32 2.69 1.58 4.88 1997 2.22 3.84 4.80 5.69 7.04 6.66 7.25 7.20 5.90 4.49 3.06 2.62 5.07 1998 1.90 2.71 4.72 5.84 5.46 6.82 7.44 7.44 5.87 4.90 2.11 2.18 4.79 1999 2.39 2.36 4.51 5.96 7.03 7.15 8.03 6.51 6.78 5.20 2.49 1.80 5.03 2000 1.86 2.79 5.25 6.20 6.48 7.65 7.50 7.18 5.96 4.21 2.56 1.62 4.94 2001 2.34 3.47 4.71 5.54 7.24 7.28 7.10 7.24 6.18 4.44 2.83 1.57 5.00 2002 2.01 4.16 4.33 6.03 7.11 7.40 7.46 7.21 6.03 5.15 3.26 1.60 5.15 2003 1.87 3.76 4.33 5.05 6.70 7.98 7.83 6.82 6.36 4.85 2.71 1.68 5.00 2004 1.67 3.26 5.29 6.58 6.43 7.50 7.60 6.89 6.05 4.11 2.49 1.76 4.97 2005 1.90 4.12 4.94 5.38 5.85 7.24 7.96 7.46 6.37 4.60 2.71 1.89 5.03 2006 1.93 4.13 3.86 5.43 7.08 7.40 7.81 7.41 6.05 4.76 2.36 2.49 5.06 Average 2.01 3.47 4.60 5.74 6.59 7.26 7.58 7.16 6.14 4.62 2.59 1.84 4.97 % SD 10 17 10 7 9 6 4 4 4 8 13 20 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.