Warmest ZIP codes in Illinois
Ranked by annual average temperature estimated from nearby weather observations.
How we rank average temperature
Average temperature is calculated from monthly mean temperatures at nearby weather stations. Each ZIP reflects nearby observations, with closer stations having more influence.
An annual average hides the season: a mild coastal ZIP and a hot inland one can share a value. Open a ZIP's profile for hot days, freeze days, and precipitation.
Only ZIPs with at least 1,000 residents are ranked, so a handful of households cannot top the list. 917 Illinois ZIPs qualify.
Illinois ZIP codes ranked by average temperature
1ZIP 62914Cairo
Illinois
- Avg. temperature
- 60.0°F
- ZIP population
- ~2k
- Avg. commute
- 35 min
2ZIP 62964Cairo
Illinois
- Avg. temperature
- 59.3°F
- ZIP population
- ~1k
- Avg. commute
- 31 min
3ZIP 62988Tamms
Illinois
- Avg. temperature
- 58.8°F
- ZIP population
- ~1k
- Avg. commute
- 31 min
4ZIP 62959Marion
Illinois
- Avg. temperature
- 58.7°F
- ZIP population
- ~28k
- Avg. commute
- 25 min
5ZIP 62910Brookport
Illinois
- Avg. temperature
- 58.7°F
- ZIP population
- ~2k
- Avg. commute
- 25 min
6ZIP 62956Karnak
Illinois
- Avg. temperature
- 58.7°F
- ZIP population
- ~1k
- Avg. commute
- 28 min
| Rank | ZIP | City | County | Avg. temperature |
|---|---|---|---|---|
| #7 | 62960 | Metropolis | Massac County | 58.7°F |
| #8 | 62832 | Du Quoin | Perry County | 58.5°F |
| #9 | 62939 | Goreville | Johnson County | 58.3°F |
| #10 | 62995 | Vienna | Johnson County | 58.2°F |
| #11 | 62926 | Dongola | Union County | 58.2°F |
| #12 | 62933 | Energy | Williamson County | 58.2°F |
| #13 | 62985 | Vienna | Johnson County | 58.2°F |
| #14 | 62972 | Ozark | Johnson County | 58.1°F |
| #15 | 62922 | Creal Springs | Williamson County | 58.1°F |
| #16 | 62912 | Buncombe | Johnson County | 58.1°F |
| #17 | 62932 | Elkville | Jackson County | 58.0°F |
| #18 | 62938 | Golconda | Pope County | 58.0°F |
| #19 | 62951 | Johnston City | Williamson County | 57.9°F |
| #20 | 62983 | Elkville | Franklin County | 57.9°F |
| #21 | 62948 | Herrin | Williamson County | 57.9°F |
| #22 | 62865 | Christopher | Franklin County | 57.9°F |
| #23 | 62952 | Jonesboro | Union County | 57.8°F |
| #24 | 62974 | Pittsburg | Williamson County | 57.8°F |
| #25 | 62999 | Herrin | Franklin County | 57.8°F |
Rank Illinois by your own priorities
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More Illinois research
Best ZIP codes for schools
Ranked by school quality index
- Illinois median ZIP
- 23.6
- Middle 80% of ZIPs
- 13.9 to 40.5
Most affordable ZIP codes
Ranked by cost of living index
- Illinois median ZIP
- 91.1
- Middle 80% of ZIPs
- 72.9 to 119.8
ZIP codes with the shortest commutes
Ranked by mean commute
- Illinois median ZIP
- 26.6 min
- Middle 80% of ZIPs
- 19.1 min to 33.4 min
Best healthcare access
Ranked by healthcare access score
- Illinois median ZIP
- 93.8
- Middle 80% of ZIPs
- 85.7 to 99.0
Best broadband coverage
Ranked by households with broadband
- Illinois median ZIP
- 90.1%
- Middle 80% of ZIPs
- 81.4% to 95.8%