Cooling and heating degree days - Cities and FUAs — Cooling degree in Bologna
Bologna: Cooling and heating degree days - Cities and FUAs — Cooling degree was -23.01 % change on previous year in 2025. ◆ Volatile
Latest (2025)
-23.01 % change on previous year
Change on year
down 468.5%
Rank
411th
of 1306 regions
All-time high
120.43 % change on previous year
in 2003
All-time low
-58.49 % change on previous year
in 1953
Years of data
75
1951–2025
Cooling and heating degree days - Cities and FUAs — Cooling degree in Bologna, 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 Bologna is -23.01 % change on previous year, measured in 2025.
That represents a change of down 468.5% on the previous year and down 119.7% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas — cooling degree in Bologna peaked at 120.43 % change on previous year in 2003 and was at its lowest, -58.49 % change on previous year, in 1953.
That places Bologna 411th out of 1306 regions with data for 2025, putting it 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 — Cooling degree in Bologna, year by year
| Year | % change on previous year | Change |
|---|---|---|
| 1951 | -54.64 % change on previous year | — |
| 1952 | 103.96 % change on previous year | -290.3% |
| 1953 | -58.49 % change on previous year | -156.3% |
| 1954 | 9.73 % change on previous year | -116.6% |
| 1955 | -17.52 % change on previous year | -280.1% |
| 1956 | 49.92 % change on previous year | -384.9% |
| 1957 | -15.24 % change on previous year | -130.5% |
| 1958 | 87.16 % change on previous year | -671.7% |
| 1959 | -30.57 % change on previous year | -135.1% |
| 1960 | -29.29 % change on previous year | -4.2% |
| 1961 | 61.23 % change on previous year | -309.1% |
| 1962 | 16.33 % change on previous year | -73.3% |
| 1963 | -33.04 % change on previous year | -302.3% |
| 1964 | 5.19 % change on previous year | -115.7% |
| 1965 | -7.29 % change on previous year | -240.6% |
| 1966 | 10.84 % change on previous year | -248.6% |
| 1967 | 9.8 % change on previous year | -9.6% |
| 1968 | -31.3 % change on previous year | -419.5% |
| 1969 | 22.12 % change on previous year | -170.7% |
| 1970 | 24.17 % change on previous year | +9.3% |
| 1971 | 9.74 % change on previous year | -59.7% |
| 1972 | -52.3 % change on previous year | -636.8% |
| 1973 | 78.14 % change on previous year | -249.4% |
| 1974 | -0.2692 % change on previous year | -100.3% |
| 1975 | -1.78 % change on previous year | +562.9% |
| 1976 | -27.5 % change on previous year | +1440.7% |
| 1977 | -16.64 % change on previous year | -39.5% |
| 1978 | -3.9 % change on previous year | -76.5% |
| 1979 | 67.73 % change on previous year | -1834.7% |
| 1980 | -18.82 % change on previous year | -127.8% |
| 1981 | -1.78 % change on previous year | -90.6% |
| 1982 | 54.76 % change on previous year | -3184.5% |
| 1983 | 3.33 % change on previous year | -93.9% |
| 1984 | -37.84 % change on previous year | -1235.8% |
| 1985 | 76.09 % change on previous year | -301.1% |
| 1986 | -22.98 % change on previous year | -130.2% |
| 1987 | 24.93 % change on previous year | -208.5% |
| 1988 | -5 % change on previous year | -120.1% |
| 1989 | -33.42 % change on previous year | +568.2% |
| 1990 | 36.36 % change on previous year | -208.8% |
| 1991 | 28.46 % change on previous year | -21.7% |
| 1992 | 7.35 % change on previous year | -74.2% |
| 1993 | -13.54 % change on previous year | -284.1% |
| 1994 | 6.39 % change on previous year | -147.2% |
| 1995 | -31.16 % change on previous year | -588.0% |
| 1996 | -7.84 % change on previous year | -74.9% |
| 1997 | 45.98 % change on previous year | -686.6% |
| 1998 | 29.84 % change on previous year | -35.1% |
| 1999 | -25.15 % change on previous year | -184.3% |
| 2000 | 8.3 % change on previous year | -133.0% |
| 2001 | -6.9 % change on previous year | -183.1% |
| 2002 | -20.71 % change on previous year | +200.2% |
| 2003 | 120.43 % change on previous year | -681.6% |
| 2004 | -45.36 % change on previous year | -137.7% |
| 2005 | 1.75 % change on previous year | -103.9% |
| 2006 | 20.22 % change on previous year | +1057.5% |
| 2007 | -0.7388 % change on previous year | -103.7% |
| 2008 | -4.84 % change on previous year | +555.2% |
| 2009 | 15.11 % change on previous year | -412.2% |
| 2010 | -34.31 % change on previous year | -327.0% |
| 2011 | 50.15 % change on previous year | -246.2% |
| 2012 | 24.46 % change on previous year | -51.2% |
| 2013 | -30.34 % change on previous year | -224.0% |
| 2014 | -42.7 % change on previous year | +40.7% |
| 2015 | 116.85 % change on previous year | -373.6% |
| 2016 | -18.41 % change on previous year | -115.8% |
| 2017 | 47.28 % change on previous year | -356.9% |
| 2018 | -28.5 % change on previous year | -160.3% |
| 2019 | 3.44 % change on previous year | -112.1% |
| 2020 | -2.87 % change on previous year | -183.4% |
| 2021 | 18.65 % change on previous year | -749.9% |
| 2022 | 19.98 % change on previous year | +7.1% |
| 2023 | -15.3 % change on previous year | -176.6% |
| 2024 | -4.05 % change on previous year | -73.5% |
| 2025 | -23.01 % change on previous year | +468.5% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 8.26 % change on previous year | -58.49 % change on previous year | 103.96 % change on previous year | 9 |
| 1960s | 2.46 % change on previous year | -33.04 % change on previous year | 61.23 % change on previous year | 10 |
| 1970s | 7.74 % change on previous year | -52.3 % change on previous year | 78.14 % change on previous year | 10 |
| 1980s | 3.93 % change on previous year | -37.84 % change on previous year | 76.09 % change on previous year | 10 |
| 1990s | 7.67 % change on previous year | -31.16 % change on previous year | 45.98 % change on previous year | 10 |
| 2000s | 8.73 % change on previous year | -45.36 % change on previous year | 120.43 % change on previous year | 10 |
| 2010s | 8.79 % change on previous year | -42.7 % change on previous year | 116.85 % change on previous year | 10 |
| 2020s | -1.1 % change on previous year | -23.01 % change on previous year | 19.98 % change on previous year | 6 |
More reference data data for Bologna
- Cooling and heating degree days - Cities and FUAs — Change in cooling -86.81 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 319.26 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling 14.5 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs 1,234 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -382.02 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -50.61 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate -9.43 % change on previous year (2025)
- Precipitation - Cities and FUAs — Change in extreme precipitation 6.88 Days per year (2024)
- Precipitation - Cities and FUAs — Extreme precipitation days 13.88 Days per year (2024)
- Projected deaths by age, sex, type of projection and NUTS 3 region 13,450 Person (2100)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas — cooling degree in Bologna?
- Cooling and heating degree days - cities and fuas — cooling degree in Bologna was -23.01 % 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 Bologna?
- The highest recorded value was 120.43 % change on previous year in 2003.
- What is the lowest cooling and heating degree days - cities and fuas — cooling degree recorded in Bologna?
- The lowest recorded value was -58.49 % change on previous year in 1953.
- How does Bologna rank for cooling and heating degree days - cities and fuas — cooling degree?
- Bologna ranks 411th out of 1306 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas — cooling degree rising or falling in Bologna?
- Over the last ten years it is down 119.7%. The long-run trend across the full record is volatile.
- Where does this Bologna 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.