2010 Mixing Height Data Monthly Avg Std Dev By Local Time of Day By Local Time of Day and Season Jan 370.9 273.8 Hour Annual Avg Std Dev Winter Avg Spring Avg Summer Avg Fall Avg Feb 474.0 377.4 1 244 194 309 256 212 199 Mar 499.4 555.2 2 227 148 277 222 203 205 Apr 758.1 1032.4 3 233 162 289 234 195 216 May 744.4 982.7 4 233 167 310 219 192 214 Jun 693.0 823.4 5 225 156 289 227 181 204 Jul 743.2 845.4 6 233 164 306 245 187 195 Aug 741.6 931.9 7 237 183 286 251 212 200 Sep 682.8 1026.1 8 238 186 314 246 198 194 Oct 545.0 643.9 9 280 192 329 302 268 220 Nov 409.1 543.8 10 431 378 377 509 529 307 Dec 431.9 349.9 11 680 509 432 667 1078 531 12 928 657 536 1072 1325 761 Annual Max 8708.2 13 1139 855 596 1367 1572 998 Min 33.0 14 1327 997 642 1543 1700 1394 Avg 591.9 15 1374 954 665 1577 1808 1418 St Dev 761.6 16 1417 1068 685 1667 1723 1565 17 1477 1233 690 1777 1763 1649 18 1274 1112 622 1545 1668 1240 19 731 873 483 807 1326 296 20 341 416 395 397 377 197 21 240 209 349 238 183 191 22 244 223 367 213 174 226 23 222 168 315 205 176 195 24 229 167 312 213 196 197