Cooling and heating degree days - Cities and FUAs — Change in heating in Ravenna

Ravenna: Cooling and heating degree days - Cities and FUAs — Change in heating was -95.53 % change on previous year in 2025. ◆ Volatile

Latest (2025)
-95.53 % change on previous year
Change on year
down 3,748.7%
Rank
974th
of 1290 regions
All-time high
577.07 % change on previous year
in 1962
All-time low
-460.3 % change on previous year
in 1961
Years of data
68
1951–2025

Cooling and heating degree days - Cities and FUAs — Change in heating in Ravenna, 1951–2025

-500-2500250500195119882025

Source: Statizoid (derived). Measured in % change on previous year.

Analysis

In 2025, cooling and heating degree days - cities and fuas — change in heating in Ravenna stood at -95.53 % change on previous year.

That represents a change of down 3,748.7% on the previous year and down 250.8% over ten years.

Over the whole period, cooling and heating degree days - cities and fuas — change in heating in Ravenna peaked at 577.07 % change on previous year in 1962 and was at its lowest, -460.3 % change on previous year, in 1961.

Ravenna ranks 974th of 1290 regions on this measure, 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 — Change in heating in Ravenna, year by year

Annual values for Cooling and heating degree days - Cities and FUAs — Change in heating degree days from 1981–2010 period to 2020–24 period, annual growth rate in Ravenna, 1951 to 2025.
Year % change on previous year Change
1951 -223.99 % change on previous year
1952 401.85 % change on previous year -279.4%
1953 -20.04 % change on previous year -105.0%
1954 36.01 % change on previous year -279.7%
1955 -98.55 % change on previous year -373.6%
1957 -94.86 % change on previous year -3.7%
1958 -91.06 % change on previous year -4.0%
1960 88.48 % change on previous year -197.2%
1961 -460.3 % change on previous year -620.2%
1962 577.07 % change on previous year -225.4%
1963 41.56 % change on previous year -92.8%
1964 -56.38 % change on previous year -235.7%
1965 3.24 % change on previous year -105.7%
1966 -33.95 % change on previous year -1147.3%
1967 0.5304 % change on previous year -101.6%
1968 -64.41 % change on previous year -12242.6%
1969 575.49 % change on previous year -993.5%
1970 -62.04 % change on previous year -110.8%
1971 45.83 % change on previous year -173.9%
1972 -156.68 % change on previous year -441.9%
1973 325.17 % change on previous year -307.5%
1974 -89.89 % change on previous year -127.6%
1975 -117.12 % change on previous year +30.3%
1977 -157.19 % change on previous year +34.2%
1978 287.65 % change on previous year -283.0%
1979 -47.98 % change on previous year -116.7%
1980 256.57 % change on previous year -634.8%
1981 -51.99 % change on previous year -120.3%
1982 -63.78 % change on previous year +22.7%
1983 25.21 % change on previous year -139.5%
1984 51.04 % change on previous year +102.5%
1985 74.78 % change on previous year +46.5%
1986 -34.52 % change on previous year -146.2%
1987 9.86 % change on previous year -128.6%
1988 -127.27 % change on previous year -1390.4%
1989 104.14 % change on previous year -181.8%
1991 377.46 % change on previous year +262.5%
1992 -114.08 % change on previous year -130.2%
1993 256.86 % change on previous year -325.2%
1994 -442.54 % change on previous year -272.3%
1995 85.08 % change on previous year -119.2%
1996 244.72 % change on previous year +187.6%
1997 -321.46 % change on previous year -231.4%
1998 91.14 % change on previous year -128.4%
1999 112.37 % change on previous year +23.3%
2001 50.7 % change on previous year -54.9%
2002 -106.79 % change on previous year -310.6%
2003 131.6 % change on previous year -223.2%
2004 -112.71 % change on previous year -185.6%
2006 -124.54 % change on previous year +10.5%
2007 -389.1 % change on previous year +212.4%
2008 22.73 % change on previous year -105.8%
2009 43.87 % change on previous year +93.0%
2010 222.88 % change on previous year +408.0%
2011 -110.99 % change on previous year -149.8%
2012 560.16 % change on previous year -604.7%
2013 -158.44 % change on previous year -128.3%
2015 63.35 % change on previous year -140.0%
2016 -40.84 % change on previous year -164.5%
2017 50.19 % change on previous year -222.9%
2018 -41.14 % change on previous year -182.0%
2019 -50.28 % change on previous year +22.2%
2020 10.18 % change on previous year -120.3%
2021 58.4 % change on previous year +473.5%
2022 -139.76 % change on previous year -339.3%
2023 -1.38 % change on previous year -99.0%
2024 2.62 % change on previous year -290.4%
2025 -95.53 % change on previous year -3748.7%

Averages by decade

DecadeAverage LowestHighest Years
1950s -12.95 % change on previous year -223.99 % change on previous year 401.85 % change on previous year 7
1960s 67.13 % change on previous year -460.3 % change on previous year 577.07 % change on previous year 10
1970s 3.08 % change on previous year -157.19 % change on previous year 325.17 % change on previous year 9
1980s 24.4 % change on previous year -127.27 % change on previous year 256.57 % change on previous year 10
1990s 32.17 % change on previous year -442.54 % change on previous year 377.46 % change on previous year 9
2000s -60.53 % change on previous year -389.1 % change on previous year 131.6 % change on previous year 8
2010s 54.99 % change on previous year -158.44 % change on previous year 560.16 % change on previous year 9
2020s -27.58 % change on previous year -139.76 % change on previous year 58.4 % change on previous year 6

More reference data data for Ravenna

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Frequently asked questions

What is cooling and heating degree days - cities and fuas — change in heating in Ravenna?
Cooling and heating degree days - cities and fuas — change in heating in Ravenna was -95.53 % 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 Ravenna?
The highest recorded value was 577.07 % change on previous year in 1962.
What is the lowest cooling and heating degree days - cities and fuas — change in heating recorded in Ravenna?
The lowest recorded value was -460.3 % change on previous year in 1961.
How does Ravenna rank for cooling and heating degree days - cities and fuas — change in heating?
Ravenna ranks 974th out of 1290 regions with data for 2025.
Is cooling and heating degree days - cities and fuas — change in heating rising or falling in Ravenna?
Over the last ten years it is down 250.8%. The long-run trend across the full record is volatile.
Where does this Ravenna 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.

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Cooling and heating degree days - Cities and FUAs — Change in heating in Ravenna. Statizoid, drawing on Statizoid (derived). Retrieved 05 September 2026, from https://reference.statizoid.com/stat/cooling-and-heating-degree-days-cities-and-fuas-change-in-heating-degree-days-from-1981-2/ravenna/

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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

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

Indicator
Cooling and heating degree days - Cities and FUAs — Change in heating degree days from 1981–2010 period to 2020–24 period, annual growth rate
Unit
% change on previous year
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
1,308 places, 92,820 data points, 1951–2025
Last refreshed

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.