70% U.S tornadoes occur in the Great Plains.
About 2.6% of tornadoes in the United States occur in February. Global statistics are not available.
Tornadoes can occur at any time of year. A few tornadoes will happen in January almost every year, with some tornadoes occurring as early as January 1.
Tornadoes can occur in around 20-30% of severe thunderstorms. However, the percentage varies depending on the specific conditions and location of the storm.
Overall, only a handful of the tornadoes that occur in Kansas kill anyone. But this is true of tornadoes anywhere. However, a greater percentage of the tornadoes that occur in Kansas are killers because tornadoes are stronger there than they are in most other parts of the world.
Tornadoes are least likely to occur in December in the United States, as winter weather conditions typically do not support the development of tornadoes.
Very few places. The only areas where tornadoes do not occur are in polar climates and perhaps in some areas of extreme desert, such as parts of the Atacama.
On average, only about 1-2% of thunderstorms produce tornadoes. Tornado formation is a complex process that requires specific atmospheric conditions to be met, which are not present in most thunderstorms.
Tornadoes typically occur least frequently during the winter months of December, January, and February. This is because cooler temperatures reduce the instability in the atmosphere that is necessary for tornadoes to form.
About 75% of recorded tornadoes strike the United States. This is misleading however, as many countries do not keep records of their tornadoes. The actual number of tornadoes outside the U.S. is not known.
Most tornadoes occur in spring.
Tornadoes do not happen as frequently during winter or fall, with the lowest activity (at least in the U.S.) occurring in January and December. They mostly occur during the spring and summertime of April, May, and June.