This chart reports the strikes recorded in 1999 in a location near 46°N / 9°E divided by day. Click to enlarge.
In the year 1999, 1729 strikes have been recorded, that means an average strike frequency of 4.7 strikes per day or one strike every 5 hours and 4 minutes.
This chart reports the strikes recorded in 1999 in a location near 46°N / 9°E divided by month. Click to enlarge.
The average frequency of strikes in 1999 per month is 144.
This chart reports the strikes recorded in 1999 in a location near 46°N / 9°E divided by hour. Click to enlarge.
From this chart (that is only indicative) one could deduce that storms strikes more often in the early morning and in the late evening.
This chart reports the strikes recorded on August 7th, 1999 in a location near 46°N / 9°E. Click to enlarge.
On August 7th, 1999 the biggest storm of the year was recorded. 129 strikes were counted in that day and 128 in only 2 hours and a quarter, that means a strike every minute and 3 seconds.