Cooling and heating degree days - Cities and FUAs — Change in cooling in Siirt

Siirt: Cooling and heating degree days - Cities and FUAs — Change in cooling was 4.1 % change on previous year in 2025. ◆ Volatile

Latest (2025)
4.1 % change on previous year
Change on year
down 76.7%
Rank
86th
of 1306 regions
All-time high
511.63 % change on previous year
in 2005
All-time low
-512.14 % change on previous year
in 1972
Years of data
68
1951–2025

Cooling and heating degree days - Cities and FUAs — Change in cooling in Siirt, 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 cooling in Siirt stood at 4.1 % change on previous year.

That represents a change of down 76.7% on the previous year and up 131.9% over ten years.

Over the whole period, cooling and heating degree days - cities and fuas — change in cooling in Siirt peaked at 511.63 % change on previous year in 2005 and was at its lowest, -512.14 % change on previous year, in 1972.

Siirt ranks 86th of 1306 regions on this measure, in the top 10%.

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 cooling in Siirt, year by year

Annual values for Cooling and heating degree days - Cities and FUAs — Change in cooling degree days from 1981–2010 period to 2020–24 period, annual growth rate in Siirt, 1951 to 2025.
Year % change on previous year Change
1951 219.07 % change on previous year —
1952 497.82 % change on previous year +127.2%
1953 -12.44 % change on previous year -102.5%
1954 42.94 % change on previous year -445.3%
1955 -31.32 % change on previous year -172.9%
1956 -118.7 % change on previous year +279.1%
1957 -258.05 % change on previous year +117.4%
1958 91.57 % change on previous year -135.5%
1960 99.11 % change on previous year +8.2%
1962 168.92 % change on previous year +70.4%
1963 -87.45 % change on previous year -151.8%
1964 113.34 % change on previous year -229.6%
1965 80.36 % change on previous year -29.1%
1966 4.39 % change on previous year -94.5%
1967 -158.14 % change on previous year -3704.4%
1968 -98.1 % change on previous year -38.0%
1969 85.62 % change on previous year -187.3%
1970 309.06 % change on previous year +261.0%
1971 -15.97 % change on previous year -105.2%
1972 -512.14 % change on previous year +3106.2%
1973 129.3 % change on previous year -125.2%
1974 -83.48 % change on previous year -164.6%
1975 -67.26 % change on previous year -19.4%
1977 81.47 % change on previous year -221.1%
1978 -24.81 % change on previous year -130.5%
1979 -49.25 % change on previous year +98.5%
1980 166.23 % change on previous year -437.5%
1981 -120.89 % change on previous year -172.7%
1983 24.98 % change on previous year -120.7%
1984 66.79 % change on previous year +167.4%
1985 77.19 % change on previous year +15.6%
1986 107.07 % change on previous year +38.7%
1988 -241.64 % change on previous year -325.7%
1989 178.28 % change on previous year -173.8%
1990 -79.79 % change on previous year -144.8%
1991 -8.23 % change on previous year -89.7%
1993 61.94 % change on previous year -852.1%
1994 166.73 % change on previous year +169.2%
1995 -216.44 % change on previous year -229.8%
1996 86.41 % change on previous year -139.9%
1998 168.96 % change on previous year +95.5%
1999 -17.84 % change on previous year -110.6%
2000 51.98 % change on previous year -391.3%
2001 -61.63 % change on previous year -218.6%
2002 -209.14 % change on previous year +239.3%
2003 230.4 % change on previous year -210.2%
2004 -115.54 % change on previous year -150.1%
2005 511.63 % change on previous year -542.8%
2006 238.97 % change on previous year -53.3%
2007 -34.06 % change on previous year -114.3%
2008 98.49 % change on previous year -389.1%
2009 -139.56 % change on previous year -241.7%
2010 345.71 % change on previous year -347.7%
2011 -74.52 % change on previous year -121.6%
2012 287.69 % change on previous year -486.1%
2013 -67.18 % change on previous year -123.4%
2014 221.03 % change on previous year -429.0%
2015 -12.85 % change on previous year -105.8%
2016 -5.21 % change on previous year -59.5%
2017 -3.92 % change on previous year -24.7%
2018 8.21 % change on previous year -309.5%
2019 18.77 % change on previous year +128.5%
2020 -21.4 % change on previous year -214.0%
2021 141.95 % change on previous year -763.4%
2022 -16.51 % change on previous year -111.6%
2023 -7.09 % change on previous year -57.1%
2024 17.59 % change on previous year -348.1%
2025 4.1 % change on previous year -76.7%

Biggest year-on-year movements

Years where Cooling and heating degree days - Cities and FUAs — Change in cooling in Siirt 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
1967 -3704.4% 4.39 % change on previous year -158.14 % change on previous year
1972 -3106.2% -15.97 % change on previous year -512.14 % change on previous year

Averages by decade

DecadeAverage LowestHighest Years
1950s 53.86 % change on previous year -258.05 % change on previous year 497.82 % change on previous year 8
1960s 23.12 % change on previous year -158.14 % change on previous year 168.92 % change on previous year 9
1970s -25.9 % change on previous year -512.14 % change on previous year 309.06 % change on previous year 9
1980s 32.25 % change on previous year -241.64 % change on previous year 178.28 % change on previous year 8
1990s 20.22 % change on previous year -216.44 % change on previous year 168.96 % change on previous year 8
2000s 57.15 % change on previous year -209.14 % change on previous year 511.63 % change on previous year 10
2010s 71.77 % change on previous year -74.52 % change on previous year 345.71 % change on previous year 10
2020s 19.77 % change on previous year -21.4 % change on previous year 141.95 % change on previous year 6

More reference data data for Siirt

All data for Siirt →

Frequently asked questions

What is cooling and heating degree days - cities and fuas — change in cooling in Siirt?
Cooling and heating degree days - cities and fuas — change in cooling in Siirt was 4.1 % change on previous year in 2025, according to Statizoid (derived).
What is the highest cooling and heating degree days - cities and fuas — change in cooling recorded in Siirt?
The highest recorded value was 511.63 % change on previous year in 2005.
What is the lowest cooling and heating degree days - cities and fuas — change in cooling recorded in Siirt?
The lowest recorded value was -512.14 % change on previous year in 1972.
How does Siirt rank for cooling and heating degree days - cities and fuas — change in cooling?
Siirt ranks 86th out of 1306 regions with data for 2025.
Is cooling and heating degree days - cities and fuas — change in cooling rising or falling in Siirt?
Over the last ten years it is up 131.9%. The long-run trend across the full record is volatile.
Where does this Siirt data come from?
The figures come from Statizoid (derived), published as part of Cooling and heating degree days - Cities and FUAs — Change in cooling 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 cooling in Siirt. Statizoid, drawing on Statizoid (derived). Retrieved 01 October 2026, from https://reference.statizoid.com/stat/cooling-and-heating-degree-days-cities-and-fuas-change-in-cooling-degree-days-from-1981-2/siirt/

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<a href="https://reference.statizoid.com/stat/cooling-and-heating-degree-days-cities-and-fuas-change-in-cooling-degree-days-from-1981-2/siirt/">Cooling and heating degree days - Cities and FUAs — Change in cooling in Siirt</a> — Statizoid

How this figure is calculated

The year-on-year percentage change in Cooling and heating degree days - Cities and FUAs — Change in cooling 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 cooling 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
1,324 places, 93,596 data points, 1951–2025
Last refreshed

The year-on-year percentage change in Cooling and heating degree days - Cities and FUAs — Change in cooling 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.