Cooling and heating degree days - Cities and FUAs — Cooling degree in Istanbul

Istanbul: Cooling and heating degree days - Cities and FUAs — Cooling degree was -29.49 % change on previous year in 2025. ◆ Volatile

Latest (2025)
-29.49 % change on previous year
Change on year
down 248.5%
Rank
10th
of 16 groups
All-time high
96.11 % change on previous year
in 1977
All-time low
-44.85 % change on previous year
in 1964
Years of data
75
1951–2025

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

-50050100195119882025

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 Istanbul is -29.49 % change on previous year, measured in 2025.

The figure is down 248.5% on the previous year and down 721.3% over ten years.

Over the whole period, cooling and heating degree days - cities and fuas — cooling degree in Istanbul peaked at 96.11 % change on previous year in 1977 and was at its lowest, -44.85 % change on previous year, in 1964.

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 Istanbul, year by year

Annual values for Cooling and heating degree days - Cities and FUAs — Cooling degree days, annual growth rate in Istanbul, 1951 to 2025.
Year % change on previous year Change
1951 -7.9 % change on previous year
1952 28.23 % change on previous year -457.2%
1953 -26.12 % change on previous year -192.5%
1954 48.24 % change on previous year -284.7%
1955 -33.3 % change on previous year -169.0%
1956 10.07 % change on previous year -130.2%
1957 12.29 % change on previous year +22.1%
1958 -20.76 % change on previous year -268.8%
1959 -16.2 % change on previous year -21.9%
1960 1.96 % change on previous year -112.1%
1961 24.26 % change on previous year +1135.5%
1962 23.96 % change on previous year -1.2%
1963 8.37 % change on previous year -65.1%
1964 -44.85 % change on previous year -636.0%
1965 7.61 % change on previous year -117.0%
1966 40.56 % change on previous year +433.2%
1967 -7.43 % change on previous year -118.3%
1968 -21.33 % change on previous year +187.0%
1969 23.59 % change on previous year -210.6%
1970 16.63 % change on previous year -29.5%
1971 -18.59 % change on previous year -211.8%
1972 14.09 % change on previous year -175.8%
1973 -26.1 % change on previous year -285.3%
1974 1.61 % change on previous year -106.2%
1975 13.34 % change on previous year +730.9%
1976 -42.76 % change on previous year -420.6%
1977 96.11 % change on previous year -324.8%
1978 -29.59 % change on previous year -130.8%
1979 28.21 % change on previous year -195.3%
1980 -6.95 % change on previous year -124.6%
1981 -10.17 % change on previous year +46.3%
1982 -5.49 % change on previous year -46.0%
1983 -11.85 % change on previous year +115.7%
1984 30.27 % change on previous year -355.5%
1985 5.78 % change on previous year -80.9%
1986 23.74 % change on previous year +310.4%
1987 -10.65 % change on previous year -144.9%
1988 28.23 % change on previous year -365.1%
1989 -25.86 % change on previous year -191.6%
1990 4.36 % change on previous year -116.9%
1991 -10.04 % change on previous year -330.3%
1992 10.9 % change on previous year -208.6%
1993 -5.32 % change on previous year -148.8%
1994 66.16 % change on previous year -1344.4%
1995 -38.13 % change on previous year -157.6%
1996 -7.09 % change on previous year -81.4%
1997 -25.95 % change on previous year +266.0%
1998 76.15 % change on previous year -393.4%
1999 5.22 % change on previous year -93.1%
2000 -0.6384 % change on previous year -112.2%
2001 30.94 % change on previous year -4946.8%
2002 -14.2 % change on previous year -145.9%
2003 -5.06 % change on previous year -64.4%
2004 -25.13 % change on previous year +396.4%
2005 20.61 % change on previous year -182.0%
2006 20.17 % change on previous year -2.1%
2007 29.48 % change on previous year +46.1%
2008 -15.2 % change on previous year -151.6%
2009 -15.16 % change on previous year -0.3%
2010 30.48 % change on previous year -301.0%
2011 -26.16 % change on previous year -185.8%
2012 56.62 % change on previous year -316.4%
2013 -21.4 % change on previous year -137.8%
2014 -3.42 % change on previous year -84.0%
2015 4.75 % change on previous year -238.8%
2016 11.53 % change on previous year +142.9%
2017 -23.9 % change on previous year -307.3%
2018 14.72 % change on previous year -161.6%
2019 -6.97 % change on previous year -147.4%
2020 17.75 % change on previous year -354.5%
2021 -8.02 % change on previous year -145.2%
2022 -6.83 % change on previous year -14.9%
2023 27.08 % change on previous year -496.3%
2024 19.85 % change on previous year -26.7%
2025 -29.49 % change on previous year -248.5%

Averages by decade

DecadeAverage LowestHighest Years
1950s -0.605 % change on previous year -33.3 % change on previous year 48.24 % change on previous year 9
1960s 5.67 % change on previous year -44.85 % change on previous year 40.56 % change on previous year 10
1970s 5.29 % change on previous year -42.76 % change on previous year 96.11 % change on previous year 10
1980s 1.7 % change on previous year -25.86 % change on previous year 30.27 % change on previous year 10
1990s 7.63 % change on previous year -38.13 % change on previous year 76.15 % change on previous year 10
2000s 2.58 % change on previous year -25.13 % change on previous year 30.94 % change on previous year 10
2010s 3.62 % change on previous year -26.16 % change on previous year 56.62 % change on previous year 10
2020s 3.39 % change on previous year -29.49 % change on previous year 27.08 % change on previous year 6

More reference data data for Istanbul

All data for Istanbul →

Frequently asked questions

What is cooling and heating degree days - cities and fuas — cooling degree in Istanbul?
Cooling and heating degree days - cities and fuas — cooling degree in Istanbul was -29.49 % 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 Istanbul?
The highest recorded value was 96.11 % change on previous year in 1977.
What is the lowest cooling and heating degree days - cities and fuas — cooling degree recorded in Istanbul?
The lowest recorded value was -44.85 % change on previous year in 1964.
How does Istanbul rank for cooling and heating degree days - cities and fuas — cooling degree?
Istanbul ranks 10th out of 16 groups with data for 2025.
Is cooling and heating degree days - cities and fuas — cooling degree rising or falling in Istanbul?
Over the last ten years it is down 721.3%. The long-run trend across the full record is volatile.
Where does this Istanbul 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.

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Cooling and heating degree days - Cities and FUAs — Cooling degree in Istanbul. Statizoid, drawing on Statizoid (derived). Retrieved 06 September 2026, from https://reference.statizoid.com/stat/cooling-and-heating-degree-days-cities-and-fuas-cooling-degree-days-annual-growth-rate/istanbul/

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

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

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 — Cooling degree days, annual growth rate
Unit
% change on previous year
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
1,324 places, 97,987 data points, 1951–2025
Last refreshed

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.