Challis, ID. Direct Normal Data Challis, ID. Hourly Average Direct Normal Data For 2009 to 2014 Latitude: 44.44 degrees Longitude: 114.13 degrees Altitude: 1651 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 46 336 450 480 485 492 460 399 222 6 0 0 0 3376 Feb 0 0 0 0 7 154 308 428 494 526 508 436 386 327 94 0 0 0 3669 Mar 0 0 0 0 139 343 410 480 502 501 449 400 388 323 255 42 0 0 4231 Apr 0 0 0 112 358 489 568 580 566 554 514 488 453 419 352 174 4 0 5631 May 0 0 38 284 417 506 539 534 523 491 451 434 390 378 327 235 67 0 5614 Jun 0 0 142 420 545 615 632 661 659 642 610 590 535 490 442 389 260 3 7636 Jul 0 0 82 495 637 731 752 767 750 702 646 623 618 569 537 451 244 2 8606 Aug 0 0 0 226 480 584 644 668 696 660 587 520 468 424 356 242 36 0 6592 Sep 0 0 0 46 428 570 650 678 712 705 674 613 547 467 352 83 0 0 6525 Oct 0 0 0 0 169 418 522 582 615 619 584 548 461 376 106 0 0 0 4998 Nov 0 0 0 0 3 213 364 442 508 510 454 412 329 138 0 0 0 0 3372 Dec 0 0 0 0 0 41 282 367 425 443 413 358 283 51 0 0 0 0 2663 Values in Watt hours/meter^2 per hour Challis, ID. Daily Average Direct Normal Data For 2009 to 2014 Latitude: 44.44 degrees Longitude: 114.13 degrees Altitude: 1651 meters Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Yearly 2009 ---- ---- ---- ---- ---- ---- 8.04 6.25 7.53 4.24 4.40 3.19 ---- 2010 1.95 3.11 4.77 5.37 4.16 6.10 9.93 7.33 7.03 4.45 2.16 2.01 4.88 2011 2.83 3.67 2.85 4.38 4.86 6.96 9.89 7.66 7.57 4.41 3.48 4.02 5.23 2012 3.51 3.73 3.60 6.11 6.53 8.92 7.52 5.92 5.76 5.63 2.73 2.18 5.18 2013 3.82 4.65 5.44 6.14 5.88 8.05 7.97 6.87 4.66 5.61 3.83 3.13 5.51 2014 4.76 3.27 4.49 6.23 8.52* 8.16 8.33 5.52 6.61 5.66 3.66 1.44 5.57 Average 3.38 3.69 4.23 5.65 5.99 7.64 8.61 6.59 6.53 5.00 3.38 2.66 5.29 % SD 31 16 24 14 28 15 12 13 17 14 24 36 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.