Cooling Degree Days in Tonga
Tonga: Cooling Degree Days was 4,594 in 2024. ▲ Rising
Latest (2024)
4,594
Change on year
up 5.3%
World rank
82nd
of 193 countries
All-time high
4,720
in 2022
All-time low
3,658
in 1977
Years of data
65
1960–2024
Cooling Degree Days in Tonga, 1960–2024
Source: World Bank, Climate Change Knowledge Portal. https://climateknowledgeportal.worldbank.org.
Analysis
Tonga recorded 4,594 for cooling degree days in 2024.
Compared with earlier readings it is up 5.3% on the previous year and up 9.9% over ten years.
Over the whole period, cooling degree days in Tonga peaked at 4,720 in 2022 and was at its lowest, 3,658, in 1977.
Tonga ranks 82nd of 193 countries on this measure, in the middle of the range.
The long-run direction has been consistently rising across the 65 years of available data.
Cooling Degree Days in Tonga, year by year
| Year | Value | Change |
|---|---|---|
| 1960 | 4,065 | — |
| 1961 | 3,999 | -1.6% |
| 1962 | 4,001 | +0.0% |
| 1963 | 4,072 | +1.8% |
| 1964 | 4,283 | +5.2% |
| 1965 | 3,801 | -11.2% |
| 1966 | 3,780 | -0.5% |
| 1967 | 4,050 | +7.1% |
| 1968 | 4,137 | +2.2% |
| 1969 | 3,866 | -6.5% |
| 1970 | 4,190 | +8.4% |
| 1971 | 4,190 | -0.0% |
| 1972 | 3,908 | -6.7% |
| 1973 | 4,315 | +10.4% |
| 1974 | 4,250 | -1.5% |
| 1975 | 4,145 | -2.5% |
| 1976 | 3,923 | -5.3% |
| 1977 | 3,658 | -6.8% |
| 1978 | 3,806 | +4.1% |
| 1979 | 3,978 | +4.5% |
| 1980 | 3,967 | -0.3% |
| 1981 | 3,930 | -0.9% |
| 1982 | 3,877 | -1.3% |
| 1983 | 3,875 | -0.0% |
| 1984 | 4,125 | +6.4% |
| 1985 | 4,003 | -3.0% |
| 1986 | 3,745 | -6.4% |
| 1987 | 3,685 | -1.6% |
| 1988 | 4,367 | +18.5% |
| 1989 | 4,101 | -6.1% |
| 1990 | 4,090 | -0.3% |
| 1991 | 4,055 | -0.8% |
| 1992 | 3,960 | -2.4% |
| 1993 | 3,760 | -5.1% |
| 1994 | 3,774 | +0.4% |
| 1995 | 4,103 | +8.7% |
| 1996 | 4,264 | +3.9% |
| 1997 | 3,957 | -7.2% |
| 1998 | 4,168 | +5.3% |
| 1999 | 4,225 | +1.4% |
| 2000 | 4,377 | +3.6% |
| 2001 | 4,221 | -3.6% |
| 2002 | 4,298 | +1.8% |
| 2003 | 4,094 | -4.7% |
| 2004 | 4,277 | +4.5% |
| 2005 | 4,324 | +1.1% |
| 2006 | 4,234 | -2.1% |
| 2007 | 4,407 | +4.1% |
| 2008 | 4,337 | -1.6% |
| 2009 | 3,924 | -9.5% |
| 2010 | 4,471 | +14.0% |
| 2011 | 4,506 | +0.8% |
| 2012 | 4,323 | -4.1% |
| 2013 | 4,563 | +5.6% |
| 2014 | 4,179 | -8.4% |
| 2015 | 3,917 | -6.3% |
| 2016 | 4,448 | +13.6% |
| 2017 | 4,448 | -0.0% |
| 2018 | 4,380 | -1.5% |
| 2019 | 4,382 | +0.1% |
| 2020 | 4,518 | +3.1% |
| 2021 | 4,436 | -1.8% |
| 2022 | 4,720 | +6.4% |
| 2023 | 4,361 | -7.6% |
| 2024 | 4,594 | +5.3% |
Tonga compared with similar countries
- Tonga's 4,594 is above the median for upper middle income countries, which is 4,490, 1.0× the median. (58 countries reporting)
- Tonga's 4,594 is below the median for East Asia & Pacific, which is 4,959, 93% of the median. (30 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 4,006 | 3,780 | 4,283 | 10 |
| 1970s | 4,036 | 3,658 | 4,315 | 10 |
| 1980s | 3,968 | 3,685 | 4,367 | 10 |
| 1990s | 4,036 | 3,760 | 4,264 | 10 |
| 2000s | 4,249 | 3,924 | 4,407 | 10 |
| 2010s | 4,362 | 3,917 | 4,563 | 10 |
| 2020s | 4,526 | 4,361 | 4,720 | 5 |
Countries ranked near Tonga
More environment data for Tonga
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.234 °C (2025)
- Temperature change 0.858 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 3.06 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate 0.1689 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Building (Energy) (Mt CO2e), annual 0 % change on previous year (2024)
Frequently asked questions
- What is cooling degree days in Tonga?
- Cooling degree days in Tonga was 4,594 in 2024, according to World Bank, Climate Change Knowledge Portal. https://climateknowledgeportal.worldbank.org.
- What is the highest cooling degree days recorded in Tonga?
- The highest recorded value was 4,720 in 2022.
- What is the lowest cooling degree days recorded in Tonga?
- The lowest recorded value was 3,658 in 1977.
- How does Tonga rank for cooling degree days?
- Tonga ranks 82nd out of 193 countries with data for 2024.
- Is cooling degree days rising or falling in Tonga?
- Over the last ten years it is up 9.9%. The long-run trend across the full record is rising.
- Where does this Tonga data come from?
- The figures come from World Bank, Climate Change Knowledge Portal. https://climateknowledgeportal.worldbank.org, published as part of Cooling Degree Days. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 65 observations, free to reuse under CC BY 4.0 (World Bank Open Data).
About this data
A cooling degree day (CDD) is a measurement designed to track energy use. It is the number of degrees that a day's average temperature is above 18°C (65°F). Daily degree days are accumulated to obtain annual values.