Cooling Degree Days, annual growth rate in Bulgaria

Bulgaria: Cooling Degree Days, annual growth rate was 27.16 % change on previous year in 2024. ◆ Volatile

Latest (2024)
27.16 % change on previous year
Change on year
up 211.1%
World rank
21st
of 192 countries
All-time high
126.39 % change on previous year
in 1977
All-time low
-56.19 % change on previous year
in 1976
Years of data
64
1961–2024

Cooling Degree Days, annual growth rate in Bulgaria, 1961–2024

-50050100150196119922024

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

Analysis

The most recent figure for cooling degree days, annual growth rate in Bulgaria is 27.16 % change on previous year, measured in 2024.

Compared with earlier readings it is up 211.1% on the previous year and up 229.3% over ten years.

Over the whole period, cooling degree days, annual growth rate in Bulgaria peaked at 126.39 % change on previous year in 1977 and was at its lowest, -56.19 % change on previous year, in 1976.

That places Bulgaria 21st out of 192 countries with data for 2024, putting it in the top quarter.

The series is highly variable year to year, so single readings are best treated with caution.

Cooling Degree Days, annual growth rate in Bulgaria, year by year

Annual values for Cooling Degree Days, annual growth rate in Bulgaria, 1961 to 2024.
Year % change on previous year Change
1961 2.29 % change on previous year
1962 60.17 % change on previous year +2530.2%
1963 -3.04 % change on previous year -105.0%
1964 -40.13 % change on previous year +1221.7%
1965 22.23 % change on previous year -155.4%
1966 -10.76 % change on previous year -148.4%
1967 4.31 % change on previous year -140.1%
1968 4.42 % change on previous year +2.5%
1969 -5.04 % change on previous year -214.1%
1970 7.8 % change on previous year -254.6%
1971 -16.31 % change on previous year -309.1%
1972 20.97 % change on previous year -228.6%
1973 -16.88 % change on previous year -180.5%
1974 7.48 % change on previous year -144.3%
1975 6.81 % change on previous year -9.0%
1976 -56.19 % change on previous year -925.7%
1977 126.39 % change on previous year -324.9%
1978 -30.48 % change on previous year -124.1%
1979 18.31 % change on previous year -160.1%
1980 1.15 % change on previous year -93.7%
1981 18.74 % change on previous year +1531.0%
1982 -6.43 % change on previous year -134.3%
1983 -10.37 % change on previous year +61.3%
1984 1.56 % change on previous year -115.0%
1985 27.84 % change on previous year +1685.5%
1986 -2.16 % change on previous year -107.8%
1987 26.82 % change on previous year -1343.3%
1988 6.01 % change on previous year -77.6%
1989 -37.67 % change on previous year -727.2%
1990 30.24 % change on previous year -180.3%
1991 -16.54 % change on previous year -154.7%
1992 21.27 % change on previous year -228.6%
1993 13.22 % change on previous year -37.9%
1994 31.95 % change on previous year +141.8%
1995 -35.47 % change on previous year -211.0%
1996 13.66 % change on previous year -138.5%
1997 -22.45 % change on previous year -264.4%
1998 48.7 % change on previous year -316.9%
1999 -0.1112 % change on previous year -100.2%
2000 18.59 % change on previous year -16815.8%
2001 -7 % change on previous year -137.6%
2002 -16.23 % change on previous year +132.0%
2003 24.14 % change on previous year -248.8%
2004 -40.72 % change on previous year -268.7%
2005 -1.4 % change on previous year -96.6%
2006 37.17 % change on previous year -2757.6%
2007 42.45 % change on previous year +14.2%
2008 -14.85 % change on previous year -135.0%
2009 -12.46 % change on previous year -16.1%
2010 11.86 % change on previous year -195.2%
2011 -4.98 % change on previous year -142.0%
2012 48.22 % change on previous year -1069.0%
2013 -30.87 % change on previous year -164.0%
2014 -21 % change on previous year -32.0%
2015 32.25 % change on previous year -253.6%
2016 4.91 % change on previous year -84.8%
2017 0.5422 % change on previous year -89.0%
2018 -13.17 % change on previous year -2529.9%
2019 8.73 % change on previous year -166.3%
2020 2.65 % change on previous year -69.6%
2021 2.18 % change on previous year -17.7%
2022 3.41 % change on previous year +56.3%
2023 8.73 % change on previous year +155.7%
2024 27.16 % change on previous year +211.1%

Biggest year-on-year movements

Years where Cooling Degree Days, annual growth rate in Bulgaria 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
2000 +16815.8% -0.1112 % change on previous year 18.59 % change on previous year
2006 +2757.6% -1.4 % change on previous year 37.17 % change on previous year
2018 -2529.9% 0.5422 % change on previous year -13.17 % change on previous year
1962 +2530.2% 2.29 % change on previous year 60.17 % change on previous year
1985 +1685.5% 1.56 % change on previous year 27.84 % change on previous year
1981 +1531.0% 1.15 % change on previous year 18.74 % change on previous year

Averages by decade

DecadeAverage LowestHighest Years
1960s 3.83 % change on previous year -40.13 % change on previous year 60.17 % change on previous year 9
1970s 6.79 % change on previous year -56.19 % change on previous year 126.39 % change on previous year 10
1980s 2.55 % change on previous year -37.67 % change on previous year 27.84 % change on previous year 10
1990s 8.45 % change on previous year -35.47 % change on previous year 48.7 % change on previous year 10
2000s 2.97 % change on previous year -40.72 % change on previous year 42.45 % change on previous year 10
2010s 3.65 % change on previous year -30.87 % change on previous year 48.22 % change on previous year 10
2020s 8.83 % change on previous year 2.18 % change on previous year 27.16 % change on previous year 5

Countries ranked near Bulgaria

  1. 18 Hungary 30.3 % change on previous year compare
  2. 19 Croatia 30.25 % change on previous year compare
  3. 20 Czechia 27.27 % change on previous year compare
  4. 22 Albania 25.48 % change on previous year compare
  5. 23 Greece 21.7 % change on previous year compare
  6. 24 Republic of Moldova 19.63 % change on previous year compare

See the full ranking of 192 places →

More environment data for Bulgaria

All data for Bulgaria →

Frequently asked questions

What is cooling degree days, annual growth rate in Bulgaria?
Cooling degree days, annual growth rate in Bulgaria was 27.16 % change on previous year in 2024, according to Statizoid (derived).
What is the highest cooling degree days, annual growth rate recorded in Bulgaria?
The highest recorded value was 126.39 % change on previous year in 1977.
What is the lowest cooling degree days, annual growth rate recorded in Bulgaria?
The lowest recorded value was -56.19 % change on previous year in 1976.
How does Bulgaria rank for cooling degree days, annual growth rate?
Bulgaria ranks 21st out of 192 countries with data for 2024.
Is cooling degree days, annual growth rate rising or falling in Bulgaria?
Over the last ten years it is up 229.3%. The long-run trend across the full record is volatile.
Where does this Bulgaria data come from?
The figures come from Statizoid (derived), published as part of Cooling Degree Days, annual growth rate. Statizoid updates them automatically from the source API.

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Cooling Degree Days, annual growth rate in Bulgaria. Statizoid, drawing on Statizoid (derived). Retrieved 16 September 2026, from https://environment.statizoid.com/stat/cooling-degree-days-annual-growth-rate/bulgaria/

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<a href="https://environment.statizoid.com/stat/cooling-degree-days-annual-growth-rate/bulgaria/">Cooling Degree Days, annual growth rate in Bulgaria</a> — Statizoid

How this figure is calculated

The year-on-year percentage change in 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 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
192 places, 12,221 data points, 1961–2024
Last refreshed

The year-on-year percentage change in Cooling Degree Days. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.