Cooling and heating degree days - Cities and FUAs — Change in cooling in Sliven
Sliven: Cooling and heating degree days - Cities and FUAs — Change in cooling was -69.64 % change on previous year in 2025. ◆ Volatile
Latest (2025)
-69.64 % change on previous year
Change on year
down 199.4%
Rank
376th
of 1306 regions
All-time high
946.35 % change on previous year
in 2000
All-time low
-780.65 % change on previous year
in 1991
Years of data
72
1951–2025
Cooling and heating degree days - Cities and FUAs — Change in cooling in Sliven, 1951–2025
Source: Statizoid (derived). Measured in % change on previous year.
Analysis
Sliven recorded -69.64 % change on previous year for cooling and heating degree days - cities and fuas — change in cooling in 2025.
The figure is down 199.4% on the previous year and down 112.7% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas — change in cooling in Sliven peaked at 946.35 % change on previous year in 2000 and was at its lowest, -780.65 % change on previous year, in 1991.
Sliven ranks 376th of 1306 regions on this measure, in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Cooling and heating degree days - Cities and FUAs — Change in cooling in Sliven, year by year
| Year | % change on previous year | Change |
|---|---|---|
| 1951 | -46.2 % change on previous year | — |
| 1952 | 37.37 % change on previous year | -180.9% |
| 1953 | -91.28 % change on previous year | -344.3% |
| 1954 | 308.81 % change on previous year | -438.3% |
| 1955 | -256.79 % change on previous year | -183.2% |
| 1956 | 102 % change on previous year | -139.7% |
| 1958 | -31.25 % change on previous year | -130.6% |
| 1959 | -314.73 % change on previous year | +907.2% |
| 1960 | 8.07 % change on previous year | -102.6% |
| 1961 | 11.44 % change on previous year | +41.7% |
| 1962 | 248.11 % change on previous year | +2068.4% |
| 1963 | -74.94 % change on previous year | -130.2% |
| 1964 | -488.23 % change on previous year | +551.5% |
| 1965 | 93.86 % change on previous year | -119.2% |
| 1967 | -10.69 % change on previous year | -111.4% |
| 1968 | 35.44 % change on previous year | -431.5% |
| 1969 | 1.64 % change on previous year | -95.4% |
| 1970 | 36.05 % change on previous year | +2092.1% |
| 1971 | -190.24 % change on previous year | -627.6% |
| 1972 | 40.47 % change on previous year | -121.3% |
| 1973 | -71.49 % change on previous year | -276.7% |
| 1974 | 32.59 % change on previous year | -145.6% |
| 1975 | -19.61 % change on previous year | -160.2% |
| 1976 | -87.91 % change on previous year | +348.3% |
| 1977 | 58.58 % change on previous year | -166.6% |
| 1978 | -93.3 % change on previous year | -259.3% |
| 1979 | 32.68 % change on previous year | -135.0% |
| 1980 | -8.98 % change on previous year | -127.5% |
| 1981 | 65.32 % change on previous year | -827.2% |
| 1982 | -154.48 % change on previous year | -336.5% |
| 1983 | -33.92 % change on previous year | -78.0% |
| 1984 | 39.28 % change on previous year | -215.8% |
| 1985 | 34.95 % change on previous year | -11.0% |
| 1986 | -2.84 % change on previous year | -108.1% |
| 1987 | 158.44 % change on previous year | -5679.6% |
| 1988 | 10.91 % change on previous year | -93.1% |
| 1989 | -324.68 % change on previous year | -3075.3% |
| 1990 | 85.24 % change on previous year | -126.3% |
| 1991 | -780.65 % change on previous year | -1015.8% |
| 1992 | 67.88 % change on previous year | -108.7% |
| 1993 | 47.83 % change on previous year | -29.5% |
| 1994 | 501.13 % change on previous year | +947.7% |
| 1995 | -211.94 % change on previous year | -142.3% |
| 1996 | 82.31 % change on previous year | -138.8% |
| 1997 | -558.37 % change on previous year | -778.4% |
| 1998 | 161.75 % change on previous year | -129.0% |
| 1999 | -68.33 % change on previous year | -142.2% |
| 2000 | 946.35 % change on previous year | -1485.0% |
| 2001 | -34.79 % change on previous year | -103.7% |
| 2002 | -85.89 % change on previous year | +146.8% |
| 2003 | 613.48 % change on previous year | -814.3% |
| 2004 | -183.23 % change on previous year | -129.9% |
| 2005 | 5.68 % change on previous year | -103.1% |
| 2006 | 120.08 % change on previous year | +2013.6% |
| 2008 | -57.94 % change on previous year | -148.3% |
| 2009 | -75.83 % change on previous year | +30.9% |
| 2010 | 215.1 % change on previous year | -383.6% |
| 2011 | -47.11 % change on previous year | -121.9% |
| 2012 | 782.5 % change on previous year | -1761.0% |
| 2013 | -78.77 % change on previous year | -110.1% |
| 2014 | -141.47 % change on previous year | +79.6% |
| 2015 | 546.64 % change on previous year | -486.4% |
| 2016 | 8.62 % change on previous year | -98.4% |
| 2017 | 32.49 % change on previous year | +276.7% |
| 2018 | -79.75 % change on previous year | -345.5% |
| 2019 | 119.49 % change on previous year | -249.8% |
| 2020 | 88.06 % change on previous year | -26.3% |
| 2021 | 7.43 % change on previous year | -91.6% |
| 2022 | 10.43 % change on previous year | +40.4% |
| 2023 | 27.65 % change on previous year | +165.0% |
| 2024 | 70.08 % change on previous year | +153.5% |
| 2025 | -69.64 % change on previous year | -199.4% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | -36.51 % change on previous year | -314.73 % change on previous year | 308.81 % change on previous year | 8 |
| 1960s | -19.48 % change on previous year | -488.23 % change on previous year | 248.11 % change on previous year | 9 |
| 1970s | -26.22 % change on previous year | -190.24 % change on previous year | 58.58 % change on previous year | 10 |
| 1980s | -21.6 % change on previous year | -324.68 % change on previous year | 158.44 % change on previous year | 10 |
| 1990s | -67.32 % change on previous year | -780.65 % change on previous year | 501.13 % change on previous year | 10 |
| 2000s | 138.66 % change on previous year | -183.23 % change on previous year | 946.35 % change on previous year | 9 |
| 2010s | 135.77 % change on previous year | -141.47 % change on previous year | 782.5 % change on previous year | 10 |
| 2020s | 22.34 % change on previous year | -69.64 % change on previous year | 88.06 % change on previous year | 6 |
More reference data data for Sliven
- Cooling and heating degree days - Cities and FUAs — Cooling degree -39.98 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 195.56 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling 56.8 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs 1,825 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -419.34 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -13.08 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -2.59 % change on previous year (2025)
- Precipitation - Cities and FUAs — Change in extreme precipitation -1.09 Days per year (2024)
- Precipitation - Cities and FUAs — Extreme precipitation days 3.68 Days per year (2024)
- Projected deaths by age, sex, type of projection and NUTS 3 region 1,454 Person (2100)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas — change in cooling in Sliven?
- Cooling and heating degree days - cities and fuas — change in cooling in Sliven was -69.64 % change on previous year in 2025, according to Statizoid (derived).
- What is the highest cooling and heating degree days - cities and fuas — change in cooling recorded in Sliven?
- The highest recorded value was 946.35 % change on previous year in 2000.
- What is the lowest cooling and heating degree days - cities and fuas — change in cooling recorded in Sliven?
- The lowest recorded value was -780.65 % change on previous year in 1991.
- How does Sliven rank for cooling and heating degree days - cities and fuas — change in cooling?
- Sliven ranks 376th out of 1306 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas — change in cooling rising or falling in Sliven?
- Over the last ten years it is down 112.7%. The long-run trend across the full record is volatile.
- Where does this Sliven data come from?
- The figures come from Statizoid (derived), published as part of Cooling and heating degree days - Cities and FUAs — Change in cooling degree days from 1981–2010 period to 2020–24 period, annual growth rate. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 72 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 — Change in cooling degree days from 1981–2010 period to 2020–24 period. 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 — Change in cooling 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 — Change in cooling degree days from 1981–2010 period to 2020–24 period. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.