It's almost summer, and the weather is starting to heat up.
With this in mind, Stacker compiled a list of the counties with the warmest summers in Illinois using data from the National Centers for Environmental Information. Data represents the average temperatures from June to August 2022; the historic average is the average for these months from 1901 to 2000.
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#25. Williamson County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.1 degrees
#24. Edwards County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.1 degrees
Michael Rolands // Shutterstock
3 / 25#23. Calhoun County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 75 degrees
-- 2022 difference from historic average: 1.3 degrees
Jason Patrick Ross // Shutterstock
4 / 25#22. Clinton County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.0 degrees
#20. Jefferson County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.2 degrees
marythebarberphotos // Shutterstock
7 / 25#19. Franklin County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.1 degrees
SevenMaps // Shutterstock
8 / 25#18. Perry County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.2 degrees
#17. Jersey County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.4 degrees
#15. Jackson County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.3 degrees
Roberto Galan // Shutterstock
12 / 25#14. Hamilton County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.3 degrees
#13. St. Clair County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 0.9 degrees
#12. Saline County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.1 degrees
Roberto Galan // Shutterstock
15 / 25#11. Johnson County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.3 degrees
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#10. Randolph County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.4 degrees
#9. Union County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.5 degrees
#8. White County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.3 degrees
#7. Pope County
- Summer 2022 average temperature: 77 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.2 degrees
#6. Gallatin County
- Summer 2022 average temperature: 78 degrees
- Historic average summer temperature: 77 degrees
-- 2022 difference from historic average: 1.2 degrees
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#5. Hardin County
- Summer 2022 average temperature: 78 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.5 degrees
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22 / 25#4. Monroe County
- Summer 2022 average temperature: 78 degrees
- Historic average summer temperature: 76 degrees
-- 2022 difference from historic average: 1.6 degrees
Roberto Galan // Shutterstock
23 / 25#3. Massac County
- Summer 2022 average temperature: 78 degrees
- Historic average summer temperature: 77 degrees
-- 2022 difference from historic average: 1.5 degrees
Hank Shiffman // Shutterstock
24 / 25#2. Pulaski County
- Summer 2022 average temperature: 78 degrees
- Historic average summer temperature: 77 degrees
-- 2022 difference from historic average: 1.7 degrees
Roberto Galan // Shutterstock
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