Cooling and heating degree days - Cities and FUAs — Change in heating in Bologna
Bologna: Cooling and heating degree days - Cities and FUAs — Change in heating was -50.61 % change on previous year in 2025. ◆ Volatile
Latest (2025)
-50.61 % change on previous year
Change on year
down 836.9%
Rank
774th
of 1290 regions
All-time high
803.51 % change on previous year
in 2005
All-time low
-706.87 % change on previous year
in 1994
Years of data
69
1951–2025
Cooling and heating degree days - Cities and FUAs — Change in heating in Bologna, 1951–2025
Source: Statizoid (derived). Measured in % change on previous year.
Analysis
In 2025, cooling and heating degree days - cities and fuas — change in heating in Bologna stood at -50.61 % change on previous year.
Compared with earlier readings it is down 836.9% on the previous year and down 187.9% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas — change in heating in Bologna peaked at 803.51 % change on previous year in 2005 and was at its lowest, -706.87 % change on previous year, in 1994.
That places Bologna 774th out of 1290 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 — Change in heating in Bologna, year by year
| Year | % change on previous year | Change |
|---|---|---|
| 1951 | -179.22 % change on previous year | — |
| 1952 | 714.04 % change on previous year | -498.4% |
| 1953 | 1.4 % change on previous year | -99.8% |
| 1954 | 15.59 % change on previous year | +1014.2% |
| 1955 | -88.78 % change on previous year | -669.5% |
| 1957 | -86.05 % change on previous year | -3.1% |
| 1958 | -21.81 % change on previous year | -74.7% |
| 1959 | -205.62 % change on previous year | +842.9% |
| 1960 | 171.03 % change on previous year | -183.2% |
| 1961 | -239.5 % change on previous year | -240.0% |
| 1962 | 609.66 % change on previous year | -354.6% |
| 1963 | 45 % change on previous year | -92.6% |
| 1964 | -52.6 % change on previous year | -216.9% |
| 1965 | 20.64 % change on previous year | -139.2% |
| 1966 | -51.1 % change on previous year | -347.6% |
| 1967 | -16.87 % change on previous year | -67.0% |
| 1968 | -28.98 % change on previous year | +71.8% |
| 1969 | 398.59 % change on previous year | -1475.6% |
| 1970 | -60.8 % change on previous year | -115.3% |
| 1971 | 19.21 % change on previous year | -131.6% |
| 1972 | -93.27 % change on previous year | -585.5% |
| 1974 | -109.87 % change on previous year | +17.8% |
| 1975 | 142.45 % change on previous year | -229.7% |
| 1977 | -127.42 % change on previous year | -189.5% |
| 1978 | 565.38 % change on previous year | -543.7% |
| 1979 | -30.95 % change on previous year | -105.5% |
| 1980 | 138.16 % change on previous year | -546.4% |
| 1981 | -58.67 % change on previous year | -142.5% |
| 1982 | -73.83 % change on previous year | +25.8% |
| 1983 | 67.09 % change on previous year | -190.9% |
| 1984 | 147.2 % change on previous year | +119.4% |
| 1985 | 30.97 % change on previous year | -79.0% |
| 1986 | -20.09 % change on previous year | -164.9% |
| 1987 | -9.95 % change on previous year | -50.5% |
| 1988 | -126.37 % change on previous year | +1169.7% |
| 1989 | -30.41 % change on previous year | -75.9% |
| 1990 | -96.35 % change on previous year | +216.8% |
| 1991 | 357.12 % change on previous year | -470.7% |
| 1992 | -132.32 % change on previous year | -137.1% |
| 1993 | 143.36 % change on previous year | -208.3% |
| 1994 | -706.87 % change on previous year | -593.1% |
| 1995 | 98.89 % change on previous year | -114.0% |
| 1997 | -352.23 % change on previous year | -456.2% |
| 1998 | 88 % change on previous year | -125.0% |
| 1999 | 61.05 % change on previous year | -30.6% |
| 2001 | 77.32 % change on previous year | +26.6% |
| 2002 | -312.66 % change on previous year | -504.4% |
| 2003 | 135.78 % change on previous year | -143.4% |
| 2004 | -76.35 % change on previous year | -156.2% |
| 2005 | 803.51 % change on previous year | -1152.4% |
| 2006 | -139.43 % change on previous year | -117.4% |
| 2007 | -260.06 % change on previous year | +86.5% |
| 2008 | 18.28 % change on previous year | -107.0% |
| 2009 | 70.39 % change on previous year | +285.0% |
| 2010 | 371.39 % change on previous year | +427.6% |
| 2011 | -118.18 % change on previous year | -131.8% |
| 2012 | 178.59 % change on previous year | -251.1% |
| 2013 | -153.4 % change on previous year | -185.9% |
| 2015 | 57.58 % change on previous year | -137.5% |
| 2016 | -25.51 % change on previous year | -144.3% |
| 2017 | 39.36 % change on previous year | -254.3% |
| 2018 | -10.84 % change on previous year | -127.5% |
| 2019 | -59.66 % change on previous year | +450.6% |
| 2020 | -7.09 % change on previous year | -88.1% |
| 2021 | 60.92 % change on previous year | -959.0% |
| 2022 | -147.31 % change on previous year | -341.8% |
| 2023 | 4.34 % change on previous year | -102.9% |
| 2024 | 6.87 % change on previous year | +58.3% |
| 2025 | -50.61 % change on previous year | -836.9% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 18.69 % change on previous year | -205.62 % change on previous year | 714.04 % change on previous year | 8 |
| 1960s | 85.59 % change on previous year | -239.5 % change on previous year | 609.66 % change on previous year | 10 |
| 1970s | 38.09 % change on previous year | -127.42 % change on previous year | 565.38 % change on previous year | 8 |
| 1980s | 6.41 % change on previous year | -126.37 % change on previous year | 147.2 % change on previous year | 10 |
| 1990s | -59.93 % change on previous year | -706.87 % change on previous year | 357.12 % change on previous year | 9 |
| 2000s | 35.2 % change on previous year | -312.66 % change on previous year | 803.51 % change on previous year | 9 |
| 2010s | 31.04 % change on previous year | -153.4 % change on previous year | 371.39 % change on previous year | 9 |
| 2020s | -22.15 % change on previous year | -147.31 % change on previous year | 60.92 % change on previous year | 6 |
More reference data data for Bologna
- Cooling and heating degree days - Cities and FUAs — Cooling degree -23.01 % 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, annual growth rate -9.43 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -86.81 % 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 — change in heating in Bologna?
- Cooling and heating degree days - cities and fuas — change in heating in Bologna was -50.61 % change on previous year in 2025, according to Statizoid (derived).
- What is the highest cooling and heating degree days - cities and fuas — change in heating recorded in Bologna?
- The highest recorded value was 803.51 % change on previous year in 2005.
- What is the lowest cooling and heating degree days - cities and fuas — change in heating recorded in Bologna?
- The lowest recorded value was -706.87 % change on previous year in 1994.
- How does Bologna rank for cooling and heating degree days - cities and fuas — change in heating?
- Bologna ranks 774th out of 1290 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas — change in heating rising or falling in Bologna?
- Over the last ten years it is down 187.9%. 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 — Change in heating 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 — 69 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 heating 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 heating 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 heating 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.