Forest Grove, OR. Global Data Forest Grove, OR. Hourly Average Global Data For 1997 to 2006 Latitude: 45.55 degrees Longitude: 123.08 degrees Altitude: 55 meters Mon\Hr 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Total Jan 1 1 1 1 2 28 82 136 167 178 163 124 69 17 1 1 1 1 974 Feb 1 1 1 1 18 89 179 253 311 333 315 254 177 81 10 1 1 1 2027 Mar 1 1 1 13 78 177 269 340 400 425 387 325 241 150 55 4 1 1 2867 Apr 1 1 10 75 185 313 430 506 550 566 528 452 350 245 125 28 1 1 4369 May 1 3 46 140 262 390 506 574 629 614 591 540 433 315 196 72 9 1 5323 Jun 1 8 69 172 299 436 529 607 652 668 648 590 489 367 245 107 19 1 5908 Jul 1 4 61 176 322 466 584 673 743 768 734 674 570 431 284 127 16 1 6635 Aug 1 1 20 119 252 400 531 637 702 714 688 611 506 367 214 66 4 1 5835 Sep 1 1 2 52 168 305 430 523 580 590 545 460 346 208 75 6 1 1 4293 Oct 1 1 1 8 68 159 250 326 367 382 337 268 173 61 6 1 1 1 2409 Nov 1 1 1 1 14 66 126 176 204 201 174 127 64 10 1 1 1 1 1169 Dec 1 1 1 1 2 28 79 123 150 154 137 95 39 5 1 1 1 1 818 Values in Watt hours/meter^2 per hour Forest Grove, OR. Daily Average Global Data For 1997 to 2006 Latitude: 45.55 degrees Longitude: 123.08 degrees Altitude: 55 meters Year\Mth Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Yearly 1997 1.23 2.16 2.80 4.58 6.16 6.08 6.86 6.09 4.09 2.26 1.46 0.89 3.73 1998 0.99 1.69 3.19 4.81 4.06 6.32 6.10 6.30 4.80 2.29 0.88 0.83 3.53 1999 1.00 1.46 2.74 4.86 5.51 5.17 6.69 5.23 5.12 2.84 1.15 0.98 3.57 2000 1.14 1.59 3.06 4.63 5.44 6.84 6.52 5.98 4.17 2.41 1.40 0.89 3.68 2001 1.17 2.21 2.89 3.98 6.55 5.89 6.60 5.71 4.55 2.53 0.99 0.71 3.65 2002 0.84 2.14 3.00 4.71 5.57 6.42 6.97 6.46 4.74 3.00 1.43 0.70 3.84 2003 1.06 2.26 2.51 3.95 5.55 6.56 7.81 6.11 4.60 2.45 1.39 0.78 3.76 2004 0.90 1.89 3.48 5.13 5.35 6.78 7.22 5.86 4.14 2.63 1.28 0.82 3.79 2005 1.13 2.60 3.08 4.18 5.18 5.86 6.83 6.40 4.47 1.92 1.51 0.93 3.68 2006 0.78 2.24 2.88 4.92 5.79 6.23 6.98 6.24 4.78 2.80 1.00 0.98 3.81 Average 1.02 2.02 2.96 4.58 5.52 6.22 6.86 6.04 4.54 2.51 1.25 0.85 3.70 % SD 14 18 9 9 12 8 7 6 7 13 18 12 3 Values in average daily KWhr/meter^2 per Day * Less than 15 days of data in month. Univ. of Oregon Solar Monitoring Lab.