Chicago gas price history
Every weekly average the EIA has published for Chicago since 2000-06-05 — 1,377 observations. Today is among the most expensive weeks on record: only 1% were dearer.
Your dates, compared
Was gas cheaper then?
Compare two published weeks in Chicago. Inflation-adjusted prices use September 2026 dollars.
Published weeks: 2025-09-29 and 2026-09-28. A date between releases uses the preceding observation within seven days.
Prices as paid · per gallon
$3.489 → $4.759
36.4% change
In September 2026 dollars · per gallon
$3.619 → $4.759
31.5% change
Sources: US EIA weekly retail prices; BLS monthly CPI-U. The download includes actual observation dates, units and methodology. Prices are averages, not individual station quotes.
- Regular
- Diesel (Midwest)
Show the data as a table
Today’s Chicago prices → What a 100-mile commute costs this week →
Where today sits
Average price by year
| Year | Average | In September 2026 money | Cheapest | Dearest |
|---|---|---|---|---|
| 2026 | $4.05 | — | $2.91 | $5.00 |
| 2025 | $3.38 | — | $2.99 | $3.66 |
| 2024 | $3.68 | $3.95 | $2.98 | $4.32 |
| 2023 | $3.83 | $4.23 | $3.09 | $4.40 |
| 2022 | $4.39 | $5.05 | $3.25 | $5.80 |
| 2021 | $3.20 | $3.98 | $2.36 | $3.62 |
| 2020 | $2.31 | $3.00 | $1.84 | $2.70 |
| 2019 | $2.75 | $3.63 | $2.12 | $3.27 |
| 2018 | $2.78 | $3.73 | $2.13 | $3.20 |
| 2017 | $2.49 | $3.42 | $2.27 | $2.86 |
| 2016 | $2.24 | $3.14 | $1.56 | $2.78 |
| 2015 | $2.62 | $3.72 | $2.00 | $3.37 |
| 2014 | $3.57 | $5.08 | $2.31 | $4.09 |
| 2013 | $3.75 | $5.43 | $3.25 | $4.36 |
| 2012 | $3.85 | $5.65 | $3.31 | $4.47 |
| 2011 | $3.74 | $5.60 | $3.23 | $4.40 |
| 2010 | $2.94 | $4.54 | $2.66 | $3.25 |
| 2009 | $2.46 | $3.86 | $1.87 | $2.92 |
| 2008 | $3.41 | $5.32 | $1.65 | $4.30 |
| 2007 | $2.94 | $4.77 | $2.13 | $3.62 |
| 2006 | $2.66 | $4.45 | $2.23 | $3.24 |
| 2005 | $2.32 | $3.99 | $1.78 | $3.07 |
| 2004 | $1.90 | $3.39 | $1.57 | $2.18 |
| 2003 | $1.62 | $2.96 | $1.47 | $1.84 |
| 2002 | $1.43 | $2.67 | $1.09 | $1.60 |
| 2001 | $1.53 | $2.90 | $1.11 | $2.05 |
| 2000 | $1.57 | $3.04 | $1.33 | $2.11 |
Adjusted using published monthly BLS CPI-U (CUUR0000SA0), in September 2026 dollars. An adjusted annual mean is omitted if any weekly observation lacks published CPI. Compare against the national series →