Illinois Electricity Price Changelog
Month-over-month changes in the Illinois average residential electricity price (¢/kWh), derived from Energy Information Administration (EIA) data. Dataset last updated Jul 7, 2026 (UTC). The EIA publishes monthly data with a reporting lag, so the latest entry reflects April 2026 activity. · Methodology
U.S. price changelog · Illinois price history · Illinois rates
Each row is one month: the average price and the change versus the prior month (absolute ¢/kWh and percent). The most recent months are always shown; older months appear only when the move was notable (≥3% or ≥0.5¢).
| Month | Avg price (¢/kWh) | MoM change |
|---|---|---|
| April 2026 · notable | 20.47 | +1.61¢ (+8.5%) |
| March 2026 · notable | 18.86 | +1.03¢ (+5.8%) |
| February 2026 · notable | 17.83 | +1.47¢ (+9.0%) |
| January 2026 · notable | 16.36 | −0.71¢ (−4.2%) |
| December 2025 · notable | 17.07 | −1.24¢ (−6.8%) |
| November 2025 | 18.31 | −0.43¢ (−2.3%) |
| October 2025 | 18.74 | −0.31¢ (−1.6%) |
| September 2025 · notable | 19.05 | +0.99¢ (+5.5%) |
| August 2025 · notable | 18.06 | +0.84¢ (+4.9%) |
| July 2025 · notable | 17.22 | −1.07¢ (−5.9%) |
| June 2025 | 18.29 | −0.29¢ (−1.6%) |
| May 2025 | 18.58 | +0.30¢ (+1.6%) |
| April 2025 · notable | 18.28 | +0.73¢ (+4.2%) |
| March 2025 · notable | 17.55 | +1.08¢ (+6.6%) |
| February 2025 · notable | 16.47 | +0.69¢ (+4.4%) |
| January 2025 | 15.78 | −0.18¢ (−1.1%) |
| December 2024 · notable | 15.96 | −1.10¢ (−6.4%) |
| November 2024 · notable | 17.06 | +0.58¢ (+3.5%) |
| October 2024 · notable | 16.48 | +0.68¢ (+4.3%) |
| September 2024 | 15.80 | +0.18¢ (+1.2%) |
| August 2024 | 15.62 | +0.43¢ (+2.8%) |
| July 2024 · notable | 15.19 | −0.82¢ (−5.1%) |
| June 2024 · notable | 16.01 | −0.51¢ (−3.1%) |
| May 2024 | 16.52 | +0.01¢ (+0.1%) |
| April 2024 · notable | 16.51 | +0.56¢ (+3.5%) |
| February 2024 · notable | 15.60 | +0.83¢ (+5.6%) |
| December 2023 · notable | 14.84 | −0.81¢ (−5.2%) |
| October 2023 · notable | 15.75 | +1.05¢ (+7.1%) |
| September 2023 · notable | 14.70 | +0.96¢ (+7.0%) |
| August 2023 · notable | 13.74 | −1.07¢ (−7.2%) |
| June 2023 · notable | 15.08 | −2.78¢ (−15.6%) |
| February 2023 · notable | 17.03 | +1.04¢ (+6.5%) |
| December 2022 · notable | 15.98 | −1.06¢ (−6.2%) |
| June 2022 · notable | 16.58 | +1.56¢ (+10.4%) |
| March 2022 · notable | 14.57 | +0.74¢ (+5.4%) |
| February 2022 · notable | 13.83 | +0.91¢ (+7.0%) |
| January 2022 · notable | 12.92 | −0.48¢ (−3.6%) |
| December 2021 · notable | 13.40 | −0.93¢ (−6.5%) |
| October 2021 · notable | 13.98 | +0.96¢ (+7.4%) |
| June 2021 · notable | 12.83 | −1.35¢ (−9.5%) |
| March 2021 · notable | 13.82 | +1.63¢ (+13.4%) |
| December 2020 · notable | 12.52 | −1.12¢ (−8.2%) |
| October 2020 · notable | 13.99 | +1.31¢ (+10.3%) |
| August 2020 · notable | 12.56 | +0.38¢ (+3.1%) |
| July 2020 · notable | 12.18 | −0.72¢ (−5.6%) |
| June 2020 · notable | 12.90 | −1.39¢ (−9.7%) |
| April 2020 · notable | 13.96 | +0.55¢ (+4.1%) |
| March 2020 · notable | 13.41 | +0.40¢ (+3.1%) |
| December 2019 · notable | 12.79 | −0.72¢ (−5.3%) |
| October 2019 · notable | 13.86 | +1.17¢ (+9.2%) |
| August 2019 · notable | 12.71 | +0.57¢ (+4.7%) |
| July 2019 · notable | 12.14 | −1.28¢ (−9.5%) |
| June 2019 · notable | 13.42 | −0.90¢ (−6.3%) |
| April 2019 · notable | 14.32 | +1.33¢ (+10.2%) |
| December 2018 · notable | 12.53 | −0.93¢ (−6.9%) |
| October 2018 · notable | 13.49 | +1.06¢ (+8.5%) |
| August 2018 · notable | 12.52 | +0.56¢ (+4.7%) |
| July 2018 · notable | 11.96 | −0.79¢ (−6.2%) |
| June 2018 · notable | 12.75 | −0.64¢ (−4.8%) |
| March 2018 · notable | 12.93 | +0.45¢ (+3.6%) |
| December 2017 · notable | 12.58 | −1.09¢ (−8.0%) |
| November 2017 · notable | 13.67 | +0.55¢ (+4.2%) |
| August 2017 · notable | 12.83 | +0.54¢ (+4.4%) |
| July 2017 · notable | 12.29 | −0.85¢ (−6.5%) |
| June 2017 · notable | 13.14 | −0.95¢ (−6.7%) |
| May 2017 · notable | 14.09 | +0.50¢ (+3.7%) |
| April 2017 · notable | 13.59 | −0.43¢ (−3.1%) |
| March 2017 · notable | 14.02 | +1.51¢ (+12.1%) |
| February 2017 · notable | 12.51 | +0.96¢ (+8.3%) |
| January 2017 · notable | 11.55 | −0.40¢ (−3.3%) |
| December 2016 · notable | 11.95 | −1.19¢ (−9.1%) |
| October 2016 · notable | 13.03 | +0.50¢ (+4.0%) |
| June 2016 · notable | 12.54 | −1.07¢ (−7.9%) |
| May 2016 · notable | 13.61 | +0.52¢ (+4.0%) |
| March 2016 · notable | 12.88 | +0.61¢ (+5.0%) |
| February 2016 · notable | 12.27 | +0.50¢ (+4.2%) |
| December 2015 · notable | 11.82 | −1.45¢ (−10.9%) |
| October 2015 · notable | 13.58 | +0.78¢ (+6.1%) |
| June 2015 · notable | 12.58 | −0.68¢ (−5.1%) |
| April 2015 · notable | 13.31 | +1.37¢ (+11.5%) |
| February 2015 · notable | 11.88 | +0.43¢ (+3.8%) |
| December 2014 · notable | 11.78 | −0.84¢ (−6.7%) |
| November 2014 · notable | 12.62 | −0.90¢ (−6.7%) |
| October 2014 · notable | 13.52 | +1.47¢ (+12.2%) |
| April 2014 · notable | 12.31 | +1.04¢ (+9.2%) |
| March 2014 · notable | 11.27 | +0.33¢ (+3.0%) |
| February 2014 · notable | 10.94 | +0.60¢ (+5.8%) |
| January 2014 · notable | 10.34 | +0.50¢ (+5.1%) |
| December 2013 · notable | 9.84 | −0.77¢ (−7.3%) |
| November 2013 · notable | 10.61 | −0.61¢ (−5.4%) |
| October 2013 · notable | 11.22 | +1.13¢ (+11.2%) |
| September 2013 · notable | 10.09 | −0.64¢ (−6.0%) |
| June 2013 · notable | 10.57 | −1.32¢ (−11.1%) |
| May 2013 · notable | 11.89 | +0.97¢ (+8.9%) |
| April 2013 · notable | 10.92 | +0.46¢ (+4.4%) |
| March 2013 · notable | 10.46 | −0.39¢ (−3.6%) |
| February 2013 · notable | 10.85 | +0.43¢ (+4.1%) |
| December 2012 · notable | 10.62 | −0.73¢ (−6.4%) |
| November 2012 · notable | 11.35 | −0.56¢ (−4.7%) |
| October 2012 · notable | 11.91 | +0.55¢ (+4.8%) |
| September 2012 · notable | 11.36 | +0.58¢ (+5.4%) |
| July 2012 · notable | 10.81 | −0.43¢ (−3.8%) |
| June 2012 · notable | 11.24 | −1.49¢ (−11.7%) |
| April 2012 · notable | 12.45 | +0.48¢ (+4.0%) |
| March 2012 · notable | 11.97 | +0.52¢ (+4.5%) |
| December 2011 · notable | 11.14 | −1.24¢ (−10.0%) |
| November 2011 · notable | 12.38 | −0.47¢ (−3.7%) |
| September 2011 · notable | 12.76 | +1.21¢ (+10.5%) |
| August 2011 · notable | 11.55 | −0.36¢ (−3.0%) |
| May 2011 · notable | 12.37 | +0.49¢ (+4.1%) |
| March 2011 · notable | 11.90 | +0.71¢ (+6.3%) |
| February 2011 · notable | 11.19 | +0.88¢ (+8.5%) |
| January 2011 · notable | 10.31 | −0.33¢ (−3.1%) |
| December 2010 · notable | 10.64 | −1.34¢ (−11.2%) |
| October 2010 · notable | 12.22 | +0.47¢ (+4.0%) |
| July 2010 · notable | 12.13 | −0.57¢ (−4.5%) |
| June 2010 · notable | 12.70 | +0.65¢ (+5.4%) |
| May 2010 · notable | 12.05 | +0.44¢ (+3.8%) |
| April 2010 · notable | 11.61 | +0.63¢ (+5.7%) |
| March 2010 · notable | 10.98 | +0.42¢ (+4.0%) |
| February 2010 · notable | 10.56 | +0.62¢ (+6.2%) |
| January 2010 · notable | 9.94 | −0.36¢ (−3.5%) |
| December 2009 · notable | 10.30 | −0.81¢ (−7.3%) |
| September 2009 · notable | 11.48 | +0.33¢ (+3.0%) |
| July 2009 · notable | 10.97 | −0.43¢ (−3.8%) |
| June 2009 · notable | 11.40 | −0.76¢ (−6.2%) |
| February 2009 · notable | 11.47 | +0.68¢ (+6.3%) |
| December 2008 · notable | 10.82 | −1.42¢ (−11.6%) |
| October 2008 · notable | 12.05 | +0.42¢ (+3.6%) |
| September 2008 · notable | 11.63 | +0.39¢ (+3.5%) |
| May 2008 · notable | 11.60 | +0.58¢ (+5.3%) |
| April 2008 · notable | 11.02 | +0.59¢ (+5.7%) |
| March 2008 · notable | 10.43 | +0.55¢ (+5.6%) |
| February 2008 · notable | 9.88 | +0.32¢ (+3.3%) |
| December 2007 · notable | 9.71 | −0.87¢ (−8.2%) |
| October 2007 · notable | 10.74 | +0.43¢ (+4.2%) |
| August 2007 · notable | 10.29 | +0.40¢ (+4.0%) |
| July 2007 · notable | 9.89 | −0.69¢ (−6.5%) |
| June 2007 · notable | 10.58 | +0.41¢ (+4.0%) |
| April 2007 · notable | 10.42 | +0.61¢ (+6.2%) |
| January 2007 · notable | 9.63 | +2.08¢ (+27.5%) |
| December 2006 · notable | 7.55 | −0.23¢ (−3.0%) |
| November 2006 · notable | 7.78 | −0.95¢ (−10.9%) |
| October 2006 · notable | 8.73 | −0.48¢ (−5.2%) |
| September 2006 · notable | 9.21 | +0.29¢ (+3.3%) |
| July 2006 · notable | 9.15 | +0.27¢ (+3.0%) |
| May 2006 · notable | 8.92 | +0.46¢ (+5.4%) |
| April 2006 · notable | 8.46 | +0.55¢ (+7.0%) |
| February 2006 · notable | 7.93 | +0.50¢ (+6.7%) |
| December 2005 · notable | 7.38 | −0.66¢ (−8.2%) |
| November 2005 · notable | 8.04 | −0.50¢ (−5.9%) |
| October 2005 · notable | 8.54 | −0.37¢ (−4.2%) |
| May 2005 · notable | 8.74 | +0.28¢ (+3.3%) |
| April 2005 · notable | 8.46 | +0.50¢ (+6.3%) |
| February 2005 · notable | 7.83 | +0.56¢ (+7.7%) |
| January 2005 · notable | 7.27 | −0.31¢ (−4.1%) |
| December 2004 · notable | 7.58 | −0.45¢ (−5.6%) |
| November 2004 · notable | 8.03 | −0.49¢ (−5.8%) |
| October 2004 · notable | 8.52 | −0.47¢ (−5.2%) |
| May 2004 · notable | 8.76 | +0.30¢ (+3.5%) |
| April 2004 · notable | 8.46 | +0.28¢ (+3.4%) |
| March 2004 · notable | 8.18 | +0.60¢ (+7.9%) |
| December 2003 · notable | 7.56 | −0.56¢ (−6.9%) |
| November 2003 · notable | 8.12 | −0.55¢ (−6.3%) |
| June 2003 · notable | 9.23 | +0.40¢ (+4.5%) |
| May 2003 · notable | 8.83 | +0.29¢ (+3.4%) |
| April 2003 · notable | 8.54 | +0.66¢ (+8.4%) |
| March 2003 · notable | 7.88 | +0.28¢ (+3.7%) |
| December 2002 · notable | 7.46 | −0.37¢ (−4.7%) |
| November 2002 · notable | 7.83 | −0.78¢ (−9.1%) |
| October 2002 · notable | 8.61 | −0.31¢ (−3.5%) |
| May 2002 · notable | 8.78 | +0.47¢ (+5.7%) |
| April 2002 · notable | 8.31 | +0.28¢ (+3.5%) |
| February 2002 · notable | 8.02 | +0.49¢ (+6.5%) |
| January 2002 · notable | 7.53 | −0.40¢ (−5.0%) |
| November 2001 · notable | 8.05 | −0.73¢ (−8.3%) |
| October 2001 · notable | 8.78 | −0.43¢ (−4.7%) |
| May 2001 · notable | 9.20 | +0.39¢ (+4.4%) |
| April 2001 · notable | 8.81 | +0.48¢ (+5.8%) |
| February 2001 · notable | 8.25 | +0.72¢ (+9.6%) |