Cooling and heating degree days - Cities and FUAs, annual growth rate in İzmir

İzmir: Cooling and heating degree days - Cities and FUAs, annual growth rate was -21.64 % change on previous year in 2025. ◆ Volatile

Latest (2025)
-21.64 % change on previous year
Change on year
down 1,547.5%
Rank
1035th
of 1289 regions
All-time high
60.56 % change on previous year
in 2011
All-time low
-30.15 % change on previous year
in 1955
Years of data
75
1951–2025

Cooling and heating degree days - Cities and FUAs, annual growth rate in İzmir, 1951–2025

-40-200204060195119882025

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

Analysis

İzmir recorded -21.64 % change on previous year for cooling and heating degree days - cities and fuas, annual growth rate in 2025.

That represents a change of down 1,547.5% on the previous year and down 162.9% over ten years.

Over the whole period, cooling and heating degree days - cities and fuas, annual growth rate in İzmir peaked at 60.56 % change on previous year in 2011 and was at its lowest, -30.15 % change on previous year, in 1955.

İzmir ranks 1035th of 1289 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, annual growth rate in İzmir, year by year

Annual values for Cooling and heating degree days - Cities and FUAs, annual growth rate in İzmir, 1951 to 2025.
Year % change on previous year Change
1951 -15.51 % change on previous year —
1952 -0.0311 % change on previous year -99.8%
1953 44.71 % change on previous year -143666.5%
1954 -7.51 % change on previous year -116.8%
1955 -30.15 % change on previous year +301.4%
1956 51.6 % change on previous year -271.2%
1957 -13.51 % change on previous year -126.2%
1958 -13.62 % change on previous year +0.8%
1959 22.18 % change on previous year -262.8%
1960 -22.89 % change on previous year -203.2%
1961 20.45 % change on previous year -189.3%
1962 -13.07 % change on previous year -163.9%
1963 6.93 % change on previous year -153.1%
1964 21.97 % change on previous year +216.9%
1965 -6.89 % change on previous year -131.4%
1966 -26.7 % change on previous year +287.3%
1967 42.62 % change on previous year -259.6%
1968 -10.65 % change on previous year -125.0%
1969 8.34 % change on previous year -178.3%
1970 -13.66 % change on previous year -263.8%
1971 9.34 % change on previous year -168.4%
1972 12.62 % change on previous year +35.1%
1973 -6.74 % change on previous year -153.4%
1974 6.22 % change on previous year -192.3%
1975 -0.1413 % change on previous year -102.3%
1976 0.0015 % change on previous year -101.1%
1977 -10.49 % change on previous year -681790.8%
1978 -0.5112 % change on previous year -95.1%
1979 -6.29 % change on previous year +1129.6%
1980 17.82 % change on previous year -383.4%
1981 -12.72 % change on previous year -171.4%
1982 13.86 % change on previous year -208.9%
1983 -1.71 % change on previous year -112.3%
1984 -6.96 % change on previous year +307.6%
1985 -2.01 % change on previous year -71.1%
1986 -0.5033 % change on previous year -75.0%
1987 16.65 % change on previous year -3407.9%
1988 -4.32 % change on previous year -126.0%
1989 -1.21 % change on previous year -72.1%
1990 -9.22 % change on previous year +663.4%
1991 13.32 % change on previous year -244.6%
1992 15.36 % change on previous year +15.3%
1993 -11.03 % change on previous year -171.8%
1994 -13.64 % change on previous year +23.7%
1995 3.64 % change on previous year -126.7%
1996 4.74 % change on previous year +30.3%
1997 5.62 % change on previous year +18.5%
1998 -10.74 % change on previous year -291.1%
1999 -16.61 % change on previous year +54.7%
2000 31.13 % change on previous year -287.5%
2001 -14.24 % change on previous year -145.7%
2002 3.94 % change on previous year -127.7%
2003 18.14 % change on previous year +360.1%
2004 -10.74 % change on previous year -159.2%
2005 -0.8113 % change on previous year -92.4%
2006 5.22 % change on previous year -744.0%
2007 -9.54 % change on previous year -282.5%
2008 -1.35 % change on previous year -85.8%
2009 -10.21 % change on previous year +654.7%
2010 -15.22 % change on previous year +49.0%
2011 60.56 % change on previous year -497.8%
2012 -13.04 % change on previous year -121.5%
2013 -11.84 % change on previous year -9.2%
2014 -19.28 % change on previous year +62.8%
2015 34.4 % change on previous year -278.5%
2016 -4.58 % change on previous year -113.3%
2017 2.31 % change on previous year -150.4%
2018 -19.45 % change on previous year -941.0%
2019 7.99 % change on previous year -141.1%
2020 4.01 % change on previous year -49.8%
2021 -2.13 % change on previous year -153.1%
2022 13.4 % change on previous year -728.9%
2023 -14.51 % change on previous year -208.2%
2024 -1.31 % change on previous year -90.9%
2025 -21.64 % change on previous year +1547.5%

Biggest year-on-year movements

Years where Cooling and heating degree days - Cities and FUAs, annual growth rate in İzmir 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.

YearChange FromTo
1977 -681790.8% 0.0015 % change on previous year -10.49 % change on previous year
1953 +143666.5% -0.0311 % change on previous year 44.71 % change on previous year
1987 +3407.9% -0.5033 % change on previous year 16.65 % change on previous year
2025 -1547.5% -1.31 % change on previous year -21.64 % change on previous year

Averages by decade

DecadeAverage LowestHighest Years
1950s 4.24 % change on previous year -30.15 % change on previous year 51.6 % change on previous year 9
1960s 2.01 % change on previous year -26.7 % change on previous year 42.62 % change on previous year 10
1970s -0.9636 % change on previous year -13.66 % change on previous year 12.62 % change on previous year 10
1980s 1.89 % change on previous year -12.72 % change on previous year 17.82 % change on previous year 10
1990s -1.85 % change on previous year -16.61 % change on previous year 15.36 % change on previous year 10
2000s 1.15 % change on previous year -14.24 % change on previous year 31.13 % change on previous year 10
2010s 2.19 % change on previous year -19.45 % change on previous year 60.56 % change on previous year 10
2020s -3.7 % change on previous year -21.64 % change on previous year 13.4 % change on previous year 6

More reference data data for İzmir

All data for İzmir →

Frequently asked questions

What is cooling and heating degree days - cities and fuas, annual growth rate in İzmir?
Cooling and heating degree days - cities and fuas, annual growth rate in İzmir was -21.64 % change on previous year in 2025, according to Statizoid (derived).
What is the highest cooling and heating degree days - cities and fuas, annual growth rate recorded in İzmir?
The highest recorded value was 60.56 % change on previous year in 2011.
What is the lowest cooling and heating degree days - cities and fuas, annual growth rate recorded in İzmir?
The lowest recorded value was -30.15 % change on previous year in 1955.
How does İzmir rank for cooling and heating degree days - cities and fuas, annual growth rate?
İzmir ranks 1035th out of 1289 regions with data for 2025.
Is cooling and heating degree days - cities and fuas, annual growth rate rising or falling in İzmir?
Over the last ten years it is down 162.9%. The long-run trend across the full record is volatile.
Where does this İzmir data come from?
The figures come from Statizoid (derived), published as part of Cooling and heating degree days - Cities and FUAs, annual growth rate. Statizoid updates them automatically from the source API.

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Cooling and heating degree days - Cities and FUAs, annual growth rate in İzmir. Statizoid, drawing on Statizoid (derived). Retrieved 14 October 2026, from https://reference.statizoid.com/stat/cooling-and-heating-degree-days-cities-and-fuas-annual-growth-rate/izmir-2/

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<a href="https://reference.statizoid.com/stat/cooling-and-heating-degree-days-cities-and-fuas-annual-growth-rate/izmir-2/">Cooling and heating degree days - Cities and FUAs, annual growth rate in İzmir</a> — Statizoid

How this figure is calculated

The year-on-year percentage change in Cooling and heating degree days - Cities and FUAs. 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, annual growth rate
Unit
% change on previous year
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
1,307 places, 97,779 data points, 1951–2025
Last refreshed

The year-on-year percentage change in Cooling and heating degree days - Cities and FUAs. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.