A less severe freeze happened in 1991.
If there is no severe freeze, spring planting will begin next month and continue into May, or until the weather becomes too hot.
It takes a severe deep freeze to kill the larvae of insects, he added.
In combination with snow and abnormally low temperatures, a severe freeze ensued, causing extensive damage, especially to agriculture.
A severe freeze in December 2010 caused major problems for British birds, especially those needing to feed in mud.
"Clearly, there will always be a degree of risk from a severe freeze," it said.
Then a severe freeze in December 1983 killed about two-thirds of the valley's grapefruit trees, but spared the young Rio Red plants.
However, hurricanes in 1906 and 1910, along with a severe freeze, sent many scurrying back north.
Most of his collection was lost during a severe freeze but his legacy lives on.
The reduction was a result of a severe freeze in the state in December.