Cooling and heating degree days - Cities and FUAs — Cooling degree in Jena
Jena: Cooling and heating degree days - Cities and FUAs — Cooling degree was -72.61 % change on previous year in 2025. ◆ Volatile
Cooling and heating degree days - Cities and FUAs — Cooling degree in Jena, 1951–2025
Source: Statizoid (derived). Measured in % change on previous year.
Analysis
In 2025, cooling and heating degree days - cities and fuas — cooling degree in Jena stood at -72.61 % change on previous year.
That represents a change of down 638.1% on the previous year and down 144.5% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas — cooling degree in Jena peaked at 232.11 % change on previous year in 1994 and was at its lowest, -74.28 % change on previous year, in 1977.
That places Jena 996th 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 Jena, year by year
| Year | % change on previous year | Change |
|---|---|---|
| 1951 | -28.08 % change on previous year | — |
| 1952 | 58.46 % change on previous year | -308.2% |
| 1953 | -26.75 % change on previous year | -145.8% |
| 1954 | -62.46 % change on previous year | +133.5% |
| 1955 | 10.35 % change on previous year | -116.6% |
| 1956 | -24.32 % change on previous year | -335.0% |
| 1957 | 214.35 % change on previous year | -981.3% |
| 1958 | -39.48 % change on previous year | -118.4% |
| 1959 | 130.66 % change on previous year | -431.0% |
| 1960 | -69.98 % change on previous year | -153.6% |
| 1961 | 80.89 % change on previous year | -215.6% |
| 1962 | -31.28 % change on previous year | -138.7% |
| 1963 | 27.15 % change on previous year | -186.8% |
| 1964 | 94.46 % change on previous year | +248.0% |
| 1965 | -70.01 % change on previous year | -174.1% |
| 1966 | 78.12 % change on previous year | -211.6% |
| 1967 | 25.14 % change on previous year | -67.8% |
| 1968 | -32.69 % change on previous year | -230.0% |
| 1969 | 96.74 % change on previous year | -395.9% |
| 1970 | -52.01 % change on previous year | -153.8% |
| 1971 | 147.7 % change on previous year | -384.0% |
| 1972 | -51.72 % change on previous year | -135.0% |
| 1973 | 33.24 % change on previous year | -164.3% |
| 1974 | -49.24 % change on previous year | -248.1% |
| 1975 | 128.04 % change on previous year | -360.1% |
| 1976 | 21.19 % change on previous year | -83.4% |
| 1977 | -74.28 % change on previous year | -450.5% |
| 1978 | 32.19 % change on previous year | -143.3% |
| 1979 | 51.31 % change on previous year | +59.4% |
| 1980 | -35.07 % change on previous year | -168.3% |
| 1981 | 49.67 % change on previous year | -241.7% |
| 1982 | 173.74 % change on previous year | +249.8% |
| 1983 | -5.16 % change on previous year | -103.0% |
| 1984 | -63.93 % change on previous year | +1140.2% |
| 1985 | 32.73 % change on previous year | -151.2% |
| 1986 | 18.11 % change on previous year | -44.7% |
| 1987 | -49.56 % change on previous year | -373.7% |
| 1988 | 90.86 % change on previous year | -283.3% |
| 1989 | 15.7 % change on previous year | -82.7% |
| 1990 | 10.62 % change on previous year | -32.3% |
| 1991 | 7.31 % change on previous year | -31.2% |
| 1992 | 31.8 % change on previous year | +334.8% |
| 1993 | -57.83 % change on previous year | -281.9% |
| 1994 | 232.11 % change on previous year | -501.4% |
| 1995 | -41.12 % change on previous year | -117.7% |
| 1996 | -57.77 % change on previous year | +40.5% |
| 1997 | 66.86 % change on previous year | -215.7% |
| 1998 | 3.1 % change on previous year | -95.4% |
| 1999 | 9.61 % change on previous year | +210.0% |
| 2000 | -8.94 % change on previous year | -193.0% |
| 2001 | 7.1 % change on previous year | -179.4% |
| 2002 | -2.7 % change on previous year | -138.0% |
| 2003 | 210.94 % change on previous year | -7909.7% |
| 2004 | -74.08 % change on previous year | -135.1% |
| 2005 | 60.44 % change on previous year | -181.6% |
| 2006 | 65.91 % change on previous year | +9.0% |
| 2007 | -45.19 % change on previous year | -168.6% |
| 2008 | -8.52 % change on previous year | -81.1% |
| 2009 | -7.08 % change on previous year | -17.0% |
| 2010 | 60.17 % change on previous year | -950.3% |
| 2011 | -17.03 % change on previous year | -128.3% |
| 2012 | 9.65 % change on previous year | -156.7% |
| 2013 | -2.35 % change on previous year | -124.4% |
| 2014 | -30.28 % change on previous year | +1186.5% |
| 2015 | 163.02 % change on previous year | -638.4% |
| 2016 | -41.92 % change on previous year | -125.7% |
| 2017 | -5.37 % change on previous year | -87.2% |
| 2018 | 149.22 % change on previous year | -2880.8% |
| 2019 | -20.34 % change on previous year | -113.6% |
| 2020 | -31.44 % change on previous year | +54.6% |
| 2021 | -45.57 % change on previous year | +45.0% |
| 2022 | 154.91 % change on previous year | -439.9% |
| 2023 | -11.88 % change on previous year | -107.7% |
| 2024 | -9.84 % change on previous year | -17.2% |
| 2025 | -72.61 % change on previous year | +638.1% |
Biggest year-on-year movements
Years where Cooling and heating degree days - Cities and FUAs — Cooling degree in Jena 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 |
|---|---|---|---|
| 2003 | +7909.7% | -2.7 % change on previous year | 210.94 % change on previous year |
| 2018 | +2880.8% | -5.37 % change on previous year | 149.22 % change on previous year |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 25.86 % change on previous year | -62.46 % change on previous year | 214.35 % change on previous year | 9 |
| 1960s | 19.85 % change on previous year | -70.01 % change on previous year | 96.74 % change on previous year | 10 |
| 1970s | 18.64 % change on previous year | -74.28 % change on previous year | 147.7 % change on previous year | 10 |
| 1980s | 22.71 % change on previous year | -63.93 % change on previous year | 173.74 % change on previous year | 10 |
| 1990s | 20.47 % change on previous year | -57.83 % change on previous year | 232.11 % change on previous year | 10 |
| 2000s | 19.79 % change on previous year | -74.08 % change on previous year | 210.94 % change on previous year | 10 |
| 2010s | 26.48 % change on previous year | -41.92 % change on previous year | 163.02 % change on previous year | 10 |
| 2020s | -2.74 % change on previous year | -72.61 % change on previous year | 154.91 % change on previous year | 6 |
More reference data data for Jena
- Cooling and heating degree days - Cities and FUAs — Cooling degree 21.98 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -22.22 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs 2,194 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -447.78 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating 7.59 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate 1.71 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -161.64 % change on previous year (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 1.67 Days per year (2024)
- Precipitation - Cities and FUAs — Change in extreme precipitation -0.384 Days per year (2024)
- Dependency ratio - Cities and FUAs 35.4 Percentage of population aged 15-64 years (2025)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas — cooling degree in Jena?
- Cooling and heating degree days - cities and fuas — cooling degree in Jena was -72.61 % 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 Jena?
- The highest recorded value was 232.11 % change on previous year in 1994.
- What is the lowest cooling and heating degree days - cities and fuas — cooling degree recorded in Jena?
- The lowest recorded value was -74.28 % change on previous year in 1977.
- How does Jena rank for cooling and heating degree days - cities and fuas — cooling degree?
- Jena ranks 996th out of 1306 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas — cooling degree rising or falling in Jena?
- Over the last ten years it is down 144.5%. The long-run trend across the full record is volatile.
- Where does this Jena 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 — 75 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.