Cooling and heating degree days - Cities and FUAs — Cooling degree in St. Helens
St. Helens: Cooling and heating degree days - Cities and FUAs — Cooling degree was -83.87 % change on previous year in 2025. ◆ Volatile
Cooling and heating degree days - Cities and FUAs — Cooling degree in St. Helens, 1951–2025
Source: Statizoid (derived). Measured in % change on previous year.
Analysis
The most recent figure for cooling and heating degree days - cities and fuas — cooling degree in St. Helens is -83.87 % change on previous year, measured in 2025.
The figure is down 21.4% on the previous year and down 1,347.5% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas — cooling degree in St. Helens peaked at 623.24 % change on previous year in 2003 and was at its lowest, -98.89 % change on previous year, in 1962.
That places St. Helens 1104th out of 1306 regions with data for 2025, putting it in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Cooling and heating degree days - Cities and FUAs — Cooling degree in St. Helens, year by year
| Year | % change on previous year | Change |
|---|---|---|
| 1951 | -80.37 % change on previous year | — |
| 1952 | 508.22 % change on previous year | -732.4% |
| 1953 | -8.34 % change on previous year | -101.6% |
| 1954 | -96.36 % change on previous year | +1055.5% |
| 1956 | -98.32 % change on previous year | +2.0% |
| 1958 | -96.24 % change on previous year | -2.1% |
| 1960 | -59.73 % change on previous year | -37.9% |
| 1961 | -18.84 % change on previous year | -68.5% |
| 1962 | -98.89 % change on previous year | +424.9% |
| 1964 | -45.01 % change on previous year | -54.5% |
| 1965 | -49.64 % change on previous year | +10.3% |
| 1966 | 115.74 % change on previous year | -333.2% |
| 1967 | -26.69 % change on previous year | -123.1% |
| 1968 | 128.12 % change on previous year | -580.0% |
| 1969 | 152.97 % change on previous year | +19.4% |
| 1970 | 83.84 % change on previous year | -45.2% |
| 1971 | -69.82 % change on previous year | -183.3% |
| 1972 | -25.18 % change on previous year | -63.9% |
| 1973 | 104.07 % change on previous year | -513.4% |
| 1974 | -93.19 % change on previous year | -189.5% |
| 1976 | 138.84 % change on previous year | -249.0% |
| 1977 | -90.53 % change on previous year | -165.2% |
| 1978 | -11.75 % change on previous year | -87.0% |
| 1979 | -39.64 % change on previous year | +237.5% |
| 1980 | 56.1 % change on previous year | -241.5% |
| 1981 | -84.66 % change on previous year | -250.9% |
| 1983 | 41.02 % change on previous year | -148.5% |
| 1984 | -15.23 % change on previous year | -137.1% |
| 1985 | -74.93 % change on previous year | +392.0% |
| 1986 | 88.98 % change on previous year | -218.7% |
| 1987 | -65.83 % change on previous year | -174.0% |
| 1988 | 26.09 % change on previous year | -139.6% |
| 1989 | 466.73 % change on previous year | +1689.3% |
| 1990 | 8.03 % change on previous year | -98.3% |
| 1991 | -49.46 % change on previous year | -716.1% |
| 1992 | -56.28 % change on previous year | +13.8% |
| 1993 | -57.86 % change on previous year | +2.8% |
| 1994 | 396.98 % change on previous year | -786.1% |
| 1995 | 480.02 % change on previous year | +20.9% |
| 1996 | -83.99 % change on previous year | -117.5% |
| 1997 | 60.3 % change on previous year | -171.8% |
| 1998 | -77.51 % change on previous year | -228.5% |
| 1999 | 349.91 % change on previous year | -551.4% |
| 2000 | -47.3 % change on previous year | -113.5% |
| 2001 | 21.04 % change on previous year | -144.5% |
| 2002 | -67.46 % change on previous year | -420.5% |
| 2003 | 623.24 % change on previous year | -1023.9% |
| 2004 | -64.81 % change on previous year | -110.4% |
| 2005 | 49.09 % change on previous year | -175.7% |
| 2006 | 200.97 % change on previous year | +309.4% |
| 2007 | -96.33 % change on previous year | -147.9% |
| 2008 | 119.17 % change on previous year | -223.7% |
| 2009 | 127.76 % change on previous year | +7.2% |
| 2010 | -34.63 % change on previous year | -127.1% |
| 2011 | 44.87 % change on previous year | -229.6% |
| 2012 | -81.46 % change on previous year | -281.5% |
| 2014 | -48.96 % change on previous year | -39.9% |
| 2015 | 6.72 % change on previous year | -113.7% |
| 2016 | 19.14 % change on previous year | +184.6% |
| 2017 | 12.64 % change on previous year | -34.0% |
| 2018 | 206.19 % change on previous year | +1531.4% |
| 2019 | -54.28 % change on previous year | -126.3% |
| 2020 | 61.08 % change on previous year | -212.5% |
| 2021 | -45.97 % change on previous year | -175.3% |
| 2022 | 216.88 % change on previous year | -571.8% |
| 2023 | -31.63 % change on previous year | -114.6% |
| 2024 | -69.1 % change on previous year | +118.5% |
| 2025 | -83.87 % change on previous year | +21.4% |
Biggest year-on-year movements
Years where Cooling and heating degree days - Cities and FUAs — Cooling degree in St. Helens changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1989 | +1689.3% | 26.09 % change on previous year | 466.73 % change on previous year |
| 2018 | +1531.4% | 12.64 % change on previous year | 206.19 % change on previous year |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 21.43 % change on previous year | -98.32 % change on previous year | 508.22 % change on previous year | 6 |
| 1960s | 10.89 % change on previous year | -98.89 % change on previous year | 152.97 % change on previous year | 9 |
| 1970s | -0.3729 % change on previous year | -93.19 % change on previous year | 138.84 % change on previous year | 9 |
| 1980s | 48.7 % change on previous year | -84.66 % change on previous year | 466.73 % change on previous year | 9 |
| 1990s | 97.01 % change on previous year | -83.99 % change on previous year | 480.02 % change on previous year | 10 |
| 2000s | 86.54 % change on previous year | -96.33 % change on previous year | 623.24 % change on previous year | 10 |
| 2010s | 7.8 % change on previous year | -81.46 % change on previous year | 206.19 % change on previous year | 9 |
| 2020s | 7.9 % change on previous year | -83.87 % change on previous year | 216.88 % change on previous year | 6 |
More reference data data for St. Helens
- Cooling and heating degree days - Cities and FUAs — Cooling degree 0.6869 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -5.47 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs 1,750 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -395.08 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -109.96 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -10.58 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -188.44 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 3.5 Days per year (2024)
- Precipitation - Cities and FUAs — Change in extreme precipitation 1.33 Days per year (2024)
- Dependency ratio - Cities and FUAs 32.6 Percentage of population aged 15-64 years (2024)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas — cooling degree in St. Helens?
- Cooling and heating degree days - cities and fuas — cooling degree in St. Helens was -83.87 % change on previous year in 2025, according to Statizoid (derived).
- What is the highest cooling and heating degree days - cities and fuas — cooling degree recorded in St. Helens?
- The highest recorded value was 623.24 % change on previous year in 2003.
- What is the lowest cooling and heating degree days - cities and fuas — cooling degree recorded in St. Helens?
- The lowest recorded value was -98.89 % change on previous year in 1962.
- How does St. Helens rank for cooling and heating degree days - cities and fuas — cooling degree?
- St. Helens ranks 1104th out of 1306 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas — cooling degree rising or falling in St. Helens?
- Over the last ten years it is down 1,347.5%. The long-run trend across the full record is volatile.
- Where does this St. Helens data come from?
- The figures come from Statizoid (derived), published as part of Cooling and heating degree days - Cities and FUAs — Cooling degree days, annual growth rate. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 68 observations, free to reuse under Derived by Statizoid from the sources named on the page.
How this figure is calculated
The year-on-year percentage change in Cooling and heating degree days - Cities and FUAs — Cooling degree days. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.
Computed from
- Cooling and heating degree days - Cities and FUAs — Cooling degree Organisation for Economic Co-operation and Development
Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.
About this data
The year-on-year percentage change in Cooling and heating degree days - Cities and FUAs — Cooling degree days. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.