Climatology Toolbox

Climatologists have developed a number of tools to analyze climate data. The results appear in many forms, such as a summary table, probability tables, a new algorithm (method) for solving a particular problem, and so on.

In this feature of the Indiana Climate Page, you will discover some of the methods and results climatologists use to respond to everyday questions about Indiana climate.

The list of tools here will grow steadily over time. Check back on your next visit to see what new items have been added.


Climate of Indiana (narrative - revised Dec 2002)

Intense rainfall probability tables

Wind frequency tables

Evansville Fort Wayne Indianapolis South Bend



Freeze/frost probability maps - based on 1981-2010 normals

Spring
temperatures as cold or colder than
36F
Average last day of 36F or lower
1 in 10 years last 36F before
1 in 10 years last 36F after

32F
Average last day of 32F or lower
1 in 10 years last 32F before
1 in 10 years last 32F after

28F
Average last day of 28F or lower
1 in 10 years last 28F before
1 in 10 years last 28F after

Autumn
temperatures as cold or colder than
36F
Average first day of 36F or lower
1 in 10 years first 36F before
1 in 10 years first 36F after

32F
Average first day of 32F or lower
1 in 10 years first 32F before
1 in 10 years first 32F after

28F
Average first day of 28F or lower
1 in 10 years first 28F before
1 in 10 years first 28F after

Growing Season Length
temperatures persistantly above or equal to
36F
Average growing season length days >= 36F
10% of days >=36F longer than
90% of days >=36F longer than

32F
Average growing season length days >= 32F
10% of days >=32F longer than
90% of days >=32F longer than

28F
Average growing season length days >= 28F
10% of days >=28F longer than
90% of days >=28F longer than