2005 Mixing Height Data Monthly Avg Std Dev By Local Time of Day By Local Time of Day and Season Jan 598.6 438.8 Hour Annual Avg Std Dev Winter Avg Spring Avg Summer Avg Fall Avg Feb 583.0 463.0 1 329 258 398 384 253 286 Mar 833.0 740.9 2 324 224 374 369 262 290 Apr 798.9 813.1 3 319 219 367 348 265 297 May 829.4 836.1 4 323 227 355 363 284 289 Jun 764.7 804.1 5 329 234 378 358 279 303 Jul 671.5 717.0 6 336 241 390 366 289 299 Aug 771.3 905.4 7 319 249 357 360 287 271 Sep 705.9 697.0 8 344 283 365 416 295 299 Oct 503.8 460.0 9 412 320 396 532 376 343 Nov 492.5 403.9 10 596 502 482 786 675 435 Dec 402.4 290.0 11 875 603 560 1113 1109 711 12 1093 681 642 1190 1388 994 Annual Max 5000.0 13 1219 679 752 1533 1495 1085 Min 76.0 14 1367 761 820 1575 1816 1243 Avg 663.3 15 1402 795 902 1667 1729 1297 St Dv 676.0 16 1420 780 933 1723 1696 1314 17 1397 828 898 1789 1607 1283 18 1155 881 669 1668 1419 849 19 688 812 486 1128 830 299 20 362 376 443 412 301 292 21 332 306 418 383 238 291 22 337 307 437 386 251 275 23 325 308 397 365 275 262 24 318 254 412 332 235 295