Lightning Statistics - Vienna

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.

	Vienna
Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1992	0	0	0	1	32	113	24	3	19	1	1	0
1993	0	0	0	0	26	151	86	32	1	0	0	0
1994	2	0	1	3	43	2	115	75	3	0	0	0
1995	0	0	4	4	119	222	54	21	2	0	0	0
1996	0	0	1	12	114	80	16	149	1	0	0	0
1997	0	19	0	4	1	33	103	60	21	0	0	0
1998	0	0	9	0	56	283	230	86	0	0	0	0
1999	0	6	0	7	21	26	29	162	4	0	0	1
2000	17	0	0	8	278	4	75	120	203	2	0	0
2001	0	0	0	1	45	55	201	64	2	0	0	0
2002	0	0	0	0	56	161	265	125	2	4	0	0
2003	0	0	10	6	757	100	79	236	3	1	0	4
2004	0	2	0	10	38	279	110	34	0	3	0	0
2005	1	0	1	0	77	23	165	45	4	0	0	1
2006	0	0	2	36	22	111	237	31	38	24	0	0
2007	1	6	0	0	105	500	158	363	6	1	2	0
2008	0	0	12	71	47	631	243	197	15	8	11	0
2009	0	0	5	4	51	162	476	92	1	1	0	0
2010	0	0	2	4	125	65	242	767	0