This module tracks localised extreme heat anomalies. A UK heatwave threshold is met when a station logs a period of at least three consecutive days with daily maximum temperatures meeting or exceeding 28°C.
| Full Calendar Year Runs (1st Jan - 31st Dec) | |
|---|---|
| Long-Term Period Average: 14.33 days | |
| 2000 | 2 days |
| 2001 | 7 days |
| 2002 | 2 days |
| 2003 | 12 days |
| 2004 | 13 days |
| 2005 | 13 days |
| 2006 | 19 days |
| 2007 | 1 days |
| 2008 | 2 days |
| 2009 | 4 days |
| 2010 | 5 days |
| 2011 | 2 days |
| 2012 | 15 days |
| 2013 | 21 days |
| 2014 | 15 days |
| 2015 | 6 days |
| 2016 | 15 days |
| 2017 | 18 days |
| 2018 | 39 days |
| 2019 | 16 days |
| 2020 | 28 days |
| 2021 | 13 days |
| 2022 | 23 days |
| 2023 | 18 days |
| 2024 | 13 days |
| 2025 | 19 days |
| 2026 | 46 days |
| Year-to-Date Baseline (Jan to Yesterday) | |
|---|---|
| Period Baseline Average: 14.33 days | |
| 2000 | 2 days |
| 2001 | 7 days |
| 2002 | 2 days |
| 2003 | 12 days |
| 2004 | 13 days |
| 2005 | 13 days |
| 2006 | 19 days |
| 2007 | 1 days |
| 2008 | 2 days |
| 2009 | 4 days |
| 2010 | 5 days |
| 2011 | 2 days |
| 2012 | 15 days |
| 2013 | 21 days |
| 2014 | 15 days |
| 2015 | 6 days |
| 2016 | 15 days |
| 2017 | 18 days |
| 2018 | 39 days |
| 2019 | 16 days |
| 2020 | 28 days |
| 2021 | 13 days |
| 2022 | 23 days |
| 2023 | 18 days |
| 2024 | 13 days |
| 2025 | 19 days |
| 2026 | 46 days |
| Historical Boundary Milestones |
|---|
| Earliest Threshold Logged (≥28°C) |
| 19th April 2018 |
| Latest Threshold Logged (≥28°C) |
| 18th September 2014 |
| Consecutive Event Streaks Recorded | |
|---|---|
| Official 3+ Day Sustained Heatwaves per Year | |
| 2000 | None |
| 2001 | 1 recorded |
| 2002 | None |
| 2003 | 1 recorded |
| 2004 | 1 recorded |
| 2005 | 1 recorded |
| 2006 | 3 recorded |
| 2007 | None |
| 2008 | None |
| 2009 | 1 recorded |
| 2010 | None |
| 2011 | None |
| 2012 | 3 recorded |
| 2013 | 4 recorded |
| 2014 | 2 recorded |
| 2015 | None |
| 2016 | 3 recorded |
| 2017 | 3 recorded |
| 2018 | 7 recorded |
| 2019 | 2 recorded |
| 2020 | 3 recorded |
| 2021 | 2 recorded |
| 2022 | 3 recorded |
| 2023 | 2 recorded |
| 2024 | 1 recorded |
| 2025 | 3 recorded |
| 2026 | 7 recorded |