Cooling Degree Days, annual growth rate in Tonga

Tonga: Cooling Degree Days, annual growth rate was 5.34 % change on previous year in 2024. ◆ Volatile

Latest (2024)
5.34 % change on previous year
Change on year
up 170.3%
World rank
81st
of 192 countries
All-time high
18.52 % change on previous year
in 1988
All-time low
-11.25 % change on previous year
in 1965
Years of data
64
1961–2024

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

-1001020196119922024

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

Analysis

In 2024, cooling degree days, annual growth rate in Tonga stood at 5.34 % change on previous year.

The figure is up 170.3% on the previous year and up 163.6% over ten years.

Over the whole period, cooling degree days, annual growth rate in Tonga peaked at 18.52 % change on previous year in 1988 and was at its lowest, -11.25 % change on previous year, in 1965.

Tonga ranks 81st of 192 countries on this measure, in the middle of the range.

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

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

Annual values for Cooling Degree Days, annual growth rate in Tonga, 1961 to 2024.
Year % change on previous year Change
1961 -1.62 % change on previous year
1962 0.0378 % change on previous year -102.3%
1963 1.79 % change on previous year +4649.9%
1964 5.16 % change on previous year +188.0%
1965 -11.25 % change on previous year -317.8%
1966 -0.5406 % change on previous year -95.2%
1967 7.13 % change on previous year -1419.0%
1968 2.15 % change on previous year -69.8%
1969 -6.55 % change on previous year -404.3%
1970 8.37 % change on previous year -227.9%
1971 -0.0124 % change on previous year -100.1%
1972 -6.73 % change on previous year +54110.5%
1973 10.43 % change on previous year -255.0%
1974 -1.51 % change on previous year -114.5%
1975 -2.47 % change on previous year +63.3%
1976 -5.35 % change on previous year +116.7%
1977 -6.77 % change on previous year +26.6%
1978 4.05 % change on previous year -159.9%
1979 4.53 % change on previous year +11.6%
1980 -0.2768 % change on previous year -106.1%
1981 -0.941 % change on previous year +240.0%
1982 -1.35 % change on previous year +43.0%
1983 -0.0366 % change on previous year -97.3%
1984 6.45 % change on previous year -17705.1%
1985 -2.96 % change on previous year -146.0%
1986 -6.45 % change on previous year +117.6%
1987 -1.6 % change on previous year -75.2%
1988 18.52 % change on previous year -1255.9%
1989 -6.1 % change on previous year -132.9%
1990 -0.276 % change on previous year -95.5%
1991 -0.8382 % change on previous year +203.7%
1992 -2.36 % change on previous year +181.3%
1993 -5.05 % change on previous year +114.2%
1994 0.3899 % change on previous year -107.7%
1995 8.7 % change on previous year +2131.3%
1996 3.92 % change on previous year -54.9%
1997 -7.19 % change on previous year -283.3%
1998 5.34 % change on previous year -174.2%
1999 1.36 % change on previous year -74.5%
2000 3.6 % change on previous year +164.5%
2001 -3.56 % change on previous year -199.0%
2002 1.81 % change on previous year -150.7%
2003 -4.74 % change on previous year -362.3%
2004 4.47 % change on previous year -194.3%
2005 1.11 % change on previous year -75.2%
2006 -2.07 % change on previous year -287.3%
2007 4.07 % change on previous year -296.4%
2008 -1.58 % change on previous year -138.7%
2009 -9.54 % change on previous year +505.1%
2010 13.95 % change on previous year -246.2%
2011 0.7904 % change on previous year -94.3%
2012 -4.08 % change on previous year -616.0%
2013 5.55 % change on previous year -236.1%
2014 -8.4 % change on previous year -251.4%
2015 -6.26 % change on previous year -25.4%
2016 13.55 % change on previous year -316.3%
2017 -0.0031 % change on previous year -100.0%
2018 -1.53 % change on previous year +48630.3%
2019 0.0539 % change on previous year -103.5%
2020 3.08 % change on previous year +5622.8%
2021 -1.8 % change on previous year -158.5%
2022 6.4 % change on previous year -454.9%
2023 -7.6 % change on previous year -218.8%
2024 5.34 % change on previous year -170.3%

Biggest year-on-year movements

Years where Cooling Degree Days, annual growth rate in Tonga 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
1972 -54110.5% -0.0124 % change on previous year -6.73 % change on previous year
2018 -48630.3% -0.0031 % change on previous year -1.53 % change on previous year
1984 +17705.1% -0.0366 % change on previous year 6.45 % change on previous year
2020 +5622.8% 0.0539 % change on previous year 3.08 % change on previous year
1963 +4649.9% 0.0378 % change on previous year 1.79 % change on previous year
1995 +2131.3% 0.3899 % change on previous year 8.7 % change on previous year

Averages by decade

DecadeAverage LowestHighest Years
1960s -0.4092 % change on previous year -11.25 % change on previous year 7.13 % change on previous year 9
1970s 0.4539 % change on previous year -6.77 % change on previous year 10.43 % change on previous year 10
1980s 0.5253 % change on previous year -6.45 % change on previous year 18.52 % change on previous year 10
1990s 0.3998 % change on previous year -7.19 % change on previous year 8.7 % change on previous year 10
2000s -0.6437 % change on previous year -9.54 % change on previous year 4.47 % change on previous year 10
2010s 1.36 % change on previous year -8.4 % change on previous year 13.95 % change on previous year 10
2020s 1.08 % change on previous year -7.6 % change on previous year 6.4 % change on previous year 5

Countries ranked near Tonga

  1. 78 Cameroon 5.45 % change on previous year compare
  2. 79 Gabon 5.44 % change on previous year compare
  3. 80 Fiji 5.37 % change on previous year compare
  4. 82 Equatorial Guinea 5.31 % change on previous year compare
  5. 83 Colombia 5.25 % change on previous year compare
  6. 84 Ethiopia 5.14 % change on previous year compare

See the full ranking of 192 places →

More environment data for Tonga

All data for Tonga →

Frequently asked questions

What is cooling degree days, annual growth rate in Tonga?
Cooling degree days, annual growth rate in Tonga was 5.34 % change on previous year in 2024, according to Statizoid (derived).
What is the highest cooling degree days, annual growth rate recorded in Tonga?
The highest recorded value was 18.52 % change on previous year in 1988.
What is the lowest cooling degree days, annual growth rate recorded in Tonga?
The lowest recorded value was -11.25 % change on previous year in 1965.
How does Tonga rank for cooling degree days, annual growth rate?
Tonga ranks 81st out of 192 countries with data for 2024.
Is cooling degree days, annual growth rate rising or falling in Tonga?
Over the last ten years it is up 163.6%. The long-run trend across the full record is volatile.
Where does this Tonga 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.

Download this data

CSV · JSON — 64 observations, free to reuse under Derived by Statizoid from the sources named on the page.

Share, cite or embed this page

Cite this page

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

Embed or link this data

Paste this into a page to link back to these figures. The data itself is free to reuse under Derived by Statizoid from the sources named on the page; please keep the attribution.

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