| NOTE: The flash counts shown in the following table are so called unhomogenized data. The observed obvious increase in flash counts during the last few years is not necessarily a result from climate effects. Parts of this increase might result from non-climate effects, such as performance improvements of the lightning location system (sensor upgrades, location algorithm upgrades, etc). Homogenization of the ALDIS Lightning data series is a complex task and will be approached within the frame of a cooperation project together with experts from ZAMG, the Central Institute for Meteorology and Geodynamics, Vienna, Austria. |
| Vorarlberg | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 1992 | 0 | 0 | 3 | 14 | 38 | 708 | 1.098 | 439 | 26 | 1 | 1 | 0 |
| 1993 | 1 | 0 | 0 | 45 | 301 | 770 | 1.300 | 908 | 43 | 15 | 0 | 1 |
| 1994 | 21 | 0 | 2 | 19 | 170 | 244 | 1.728 | 859 | 131 | 16 | 0 | 0 |
| 1995 | 8 | 3 | 6 | 48 | 38 | 64 | 1.120 | 825 | 5 | 1 | 2 | 0 |
| 1996 | 0 | 2 | 10 | 2 | 157 | 850 | 324 | 480 | 9 | 0 | 0 | 1 |
| 1997 | 1 | 5 | 5 | 16 | 30 | 231 | 241 | 384 | 43 | 6 | 0 | 0 |
| 1998 | 7 | 0 | 1 | 1 | 24 | 417 | 527 | 334 | 26 | 10 | 0 | 2 |
| 1999 | 1 | 2 | 0 | 81 | 284 | 105 | 384 | 247 | 77 | 3 | 3 | 37 |
| 2000 | 1 | 5 | 16 | 19 | 251 | 1.382 | 1.149 | 671 | 235 | 7 | 3 | 6 |
| 2001 | 4 | 4 | 10 | 16 | 571 | 425 | 360 | 464 | 28 | 9 | 5 | 1 |
| 2002 | 0 | 3 | 18 | 24 | 259 | 2.284 | 698 | 508 | 75 | 1 | 3 | 1 |
| 2003 | 2 | 2 | 27 | 3 | 448 | 1.472 | 814 | 574 | 48 | 27 | 0 | 2 |
| 2004 | 2 | 1 | 0 | 28 | 179 | 258 | 1.516 | 809 | 52 | 96 | 1 | 0 |
| 2005 | 1 | 5 | 5 | 0 | 114 | 516 | 723 | 144 | 68 | 0 | 0 | 1 |
| 2006 | 0 | 2 | 1 | 31 | 115 | 724 | 1.784 | 198 | 433 | 10 | 0 | 2 |
| 2007 | 0 | 4 | 0 | 94 | 263 | 1.105 | 307 | 325 | 75 | 0 | 1 | 1 |
| 2008 | 1 | 0 | 0 | 24 | 169 | 1.090 | 1.632 | 413 | 114 | 7 | 19 | 6 |
| 2009 | 2 | 1 | 4 | 34 | 714 | 670 | 1.474 | 689 | 682 | 25 | 3 | 0 |
| 2010 | 0 | 0 | 1 | 15 | 159 | 209 | 875 | 852 | 0 | |||