Gladstone, OR. Direct Normal Data Gladstone, OR. Hourly Average Direct Normal Data For 1980 to 2006 Latitude: 45.50 degrees Longitude: 122.50 degrees Altitude: 100 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 47 122 166 191 189 181 166 103 20 0 0 0 0 1185 Feb 0 0 0 0 32 145 232 285 311 331 328 313 273 145 10 0 0 0 2405 Mar 0 0 0 13 109 188 245 261 290 319 313 274 234 168 42 1 0 0 2457 Apr 0 0 12 92 179 234 279 331 346 370 363 326 287 242 136 29 0 0 3225 May 0 3 69 143 217 286 313 346 388 400 387 366 337 295 242 130 13 0 3934 Jun 0 10 120 188 237 284 333 351 386 422 450 442 431 377 319 227 68 0 4646 Jul 0 2 125 233 310 400 447 497 561 618 639 630 615 558 490 337 97 0 6561 Aug 0 0 33 184 288 367 434 498 537 557 583 585 548 492 328 114 4 0 5551 Sep 0 0 1 101 246 335 412 469 509 535 561 536 489 354 98 6 0 0 4650 Oct 0 0 0 14 99 190 241 280 336 344 350 329 279 114 5 0 0 0 2580 Nov 0 0 0 0 21 95 152 195 213 225 217 193 98 4 0 0 0 0 1414 Dec 0 0 0 0 1 42 96 123 140 151 150 126 51 2 0 0 0 0 882 Values in Watt hours/meter^2 per hour Gladstone, OR. Daily Average Direct Normal Data For 1980 to 2006 Latitude: 45.50 degrees Longitude: 122.50 degrees Altitude: 100 meters Year\Mth Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Yearly 1980 ---- ---- ---- ---- ---- ---- ---- 3.03* 4.07 3.36 0.52 0.89 ---- 1981 1.26 2.01* 2.68 2.90 2.90 3.59 4.39* 6.07 4.84 2.72 1.78 0.48 2.97 1982 0.48 1.71 3.21 4.13 4.80 4.30 1.37* 4.31 3.54 2.34 1.58 1.15 2.74 1983 0.52 1.25 1.12 3.81 4.32 2.97 3.64 4.15 4.34 2.12 0.37 0.45 2.43 1984 1.61 1.64 1.78 2.56 3.19 4.09 8.26* 6.16 4.70 1.20 1.05 1.10 3.12 1985 2.74 2.09 2.55 3.33 3.67 6.59 8.82 5.81 1.81* ---- ---- ---- ---- 1999 ---- ---- ---- ---- ---- ---- ---- 4.46 6.59 5.76* 0.94 ---- ---- 2000 ---- ---- ---- ---- ---- ---- 7.19* 5.80 4.30 2.97 2.21 1.03 ---- 2001 ---- 3.24 2.43 2.30 6.63 4.32 4.17* 6.04 5.02 2.81 1.00 0.59 ---- 2002 0.19* 1.15* ---- ---- ---- 5.20 7.11 6.52 ---- 2.99* 1.70 0.66 ---- 2003 1.18 2.92 1.15 1.73 2.38 3.98 8.97* 6.13 4.70 1.86 1.42 0.69 3.10 2004 0.67 2.11 3.18 4.86 2.89 5.40 6.53 5.44 2.87 2.69 1.31* 0.71* 3.22 2005 1.45 3.83 4.39 ---- ---- ---- ---- ---- ---- ---- 2.50* 1.48 ---- 2006 0.32 2.57 1.84 2.68 ---- ---- ---- ---- ---- ---- ---- ---- ---- Average 1.04 2.23 2.43 3.15 3.85 4.49 6.05 5.33 4.25 2.80 1.36 0.84 3.15 % SD 74 38 42 31 36 24 42 20 29 41 47 38 10 Values in average daily KWhr/meter^2 per Day * Less than 15 days of data in month. Univ. of Oregon Solar Monitoring Lab.