Cooling and heating degree days - Cities and FUAs — Change in heating in Stara Zagora

Stara Zagora: Cooling and heating degree days - Cities and FUAs — Change in heating was -38.98 % change on previous year in 2025. ◆ Volatile

Latest (2025)
-38.98 % change on previous year
Change on year
down 23,198.2%
Rank
700th
of 1290 regions
All-time high
819.84 % change on previous year
in 1973
All-time low
-583.73 % change on previous year
in 1958
Years of data
70
1951–2025

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

-50005001.0k195119882025

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

Analysis

In 2025, cooling and heating degree days - cities and fuas — change in heating in Stara Zagora stood at -38.98 % change on previous year.

The figure is down 23,198.2% on the previous year and down 235.0% over ten years.

Over the whole period, cooling and heating degree days - cities and fuas — change in heating in Stara Zagora peaked at 819.84 % change on previous year in 1973 and was at its lowest, -583.73 % change on previous year, in 1958.

That places Stara Zagora 700th 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 Stara Zagora, 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 Stara Zagora, 1951 to 2025.
Year % change on previous year Change
1951 -492.83 % change on previous year
1952 71.75 % change on previous year -114.6%
1953 701.67 % change on previous year +877.9%
1954 101.74 % change on previous year -85.5%
1955 -119.18 % change on previous year -217.1%
1956 502.37 % change on previous year -521.5%
1957 -90.44 % change on previous year -118.0%
1958 -583.73 % change on previous year +545.5%
1959 165.17 % change on previous year -128.3%
1960 -317.77 % change on previous year -292.4%
1961 50.55 % change on previous year -115.9%
1962 110.26 % change on previous year +118.1%
1964 -41.96 % change on previous year -138.1%
1965 -22.55 % change on previous year -46.3%
1966 -540.95 % change on previous year +2298.9%
1967 117.8 % change on previous year -121.8%
1968 -132.24 % change on previous year -212.3%
1970 -142.41 % change on previous year +7.7%
1971 127.49 % change on previous year -189.5%
1972 -20.84 % change on previous year -116.3%
1973 819.84 % change on previous year -4033.3%
1974 -85 % change on previous year -110.4%
1975 -7.02 % change on previous year -91.7%
1976 236.23 % change on previous year -3464.5%
1977 -185.47 % change on previous year -178.5%
1978 234.38 % change on previous year -226.4%
1979 -125.27 % change on previous year -153.4%
1980 616.12 % change on previous year -591.8%
1981 -51.51 % change on previous year -108.4%
1982 -29 % change on previous year -43.7%
1983 -52.57 % change on previous year +81.3%
1984 110.71 % change on previous year -310.6%
1985 142.04 % change on previous year +28.3%
1986 -10.28 % change on previous year -107.2%
1987 47.02 % change on previous year -557.4%
1988 -18.52 % change on previous year -139.4%
1989 -200.73 % change on previous year +983.6%
1990 -34.99 % change on previous year -82.6%
1991 171.18 % change on previous year -589.2%
1992 -87.49 % change on previous year -151.1%
1993 624.23 % change on previous year -813.5%
1994 -253.49 % change on previous year -140.6%
1995 145.93 % change on previous year -157.6%
1996 117.89 % change on previous year -19.2%
1997 -25.02 % change on previous year -121.2%
1998 -90.89 % change on previous year +263.3%
2000 40.43 % change on previous year -144.5%
2001 52.23 % change on previous year +29.2%
2002 -99.88 % change on previous year -291.2%
2003 302.7 % change on previous year -403.1%
2004 -147.61 % change on previous year -148.8%
2005 95.32 % change on previous year -164.6%
2006 -91.39 % change on previous year -195.9%
2008 19.02 % change on previous year -120.8%
2009 -8.67 % change on previous year -145.6%
2010 13.28 % change on previous year -253.1%
2011 174.8 % change on previous year +1216.0%
2012 -87.72 % change on previous year -150.2%
2014 -34.18 % change on previous year -61.0%
2015 28.88 % change on previous year -184.5%
2016 15.91 % change on previous year -44.9%
2017 47.36 % change on previous year +197.6%
2018 -98.34 % change on previous year -307.7%
2019 -120 % change on previous year +22.0%
2020 32.16 % change on previous year -126.8%
2021 39.63 % change on previous year +23.2%
2022 -27.22 % change on previous year -168.7%
2023 -50.24 % change on previous year +84.6%
2024 0.1688 % change on previous year -100.3%
2025 -38.98 % change on previous year -23198.1%

Averages by decade

DecadeAverage LowestHighest Years
1950s 28.5 % change on previous year -583.73 % change on previous year 701.67 % change on previous year 9
1960s -97.11 % change on previous year -540.95 % change on previous year 117.8 % change on previous year 8
1970s 85.19 % change on previous year -185.47 % change on previous year 819.84 % change on previous year 10
1980s 55.33 % change on previous year -200.73 % change on previous year 616.12 % change on previous year 10
1990s 63.04 % change on previous year -253.49 % change on previous year 624.23 % change on previous year 9
2000s 18.02 % change on previous year -147.61 % change on previous year 302.7 % change on previous year 9
2010s -6.67 % change on previous year -120 % change on previous year 174.8 % change on previous year 9
2020s -7.41 % change on previous year -50.24 % change on previous year 39.63 % change on previous year 6

More reference data data for Stara Zagora

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Frequently asked questions

What is cooling and heating degree days - cities and fuas — change in heating in Stara Zagora?
Cooling and heating degree days - cities and fuas — change in heating in Stara Zagora was -38.98 % 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 Stara Zagora?
The highest recorded value was 819.84 % change on previous year in 1973.
What is the lowest cooling and heating degree days - cities and fuas — change in heating recorded in Stara Zagora?
The lowest recorded value was -583.73 % change on previous year in 1958.
How does Stara Zagora rank for cooling and heating degree days - cities and fuas — change in heating?
Stara Zagora ranks 700th out of 1290 regions with data for 2025.
Is cooling and heating degree days - cities and fuas — change in heating rising or falling in Stara Zagora?
Over the last ten years it is down 235.0%. The long-run trend across the full record is volatile.
Where does this Stara Zagora 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 Stara Zagora. 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/stara-zagora/

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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.