Exposure to extreme precipitation — Annual precipitation change in Tonga
Tonga: Exposure to extreme precipitation — Annual precipitation change was 305.14 Millimetres per year in 2023. ◆ Volatile
Exposure to extreme precipitation — Annual precipitation change in Tonga, 1979–2023
Source: Organisation for Economic Co-operation and Development. Measured in Millimetres per year.
Analysis
The most recent figure for exposure to extreme precipitation — annual precipitation change in Tonga is 305.14 Millimetres per year, measured in 2023.
The figure is down 61.3% on the previous year and down 45.8% over ten years.
Over the whole period, exposure to extreme precipitation — annual precipitation change in Tonga peaked at 857.94 Millimetres per year in 2017 and was at its lowest, -547.34 Millimetres per year, in 1987.
That places Tonga 20th out of 222 countries with data for 2023, putting it in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Exposure to extreme precipitation — Annual precipitation change in Tonga, year by year
| Year | Millimetres per year | Change |
|---|---|---|
| 1979 | -52.98 Millimetres per year | — |
| 1980 | 143.38 Millimetres per year | -370.6% |
| 1981 | -35.69 Millimetres per year | -124.9% |
| 1982 | 150.1 Millimetres per year | -520.6% |
| 1983 | -289.64 Millimetres per year | -293.0% |
| 1984 | -144.24 Millimetres per year | -50.2% |
| 1985 | -239.88 Millimetres per year | +66.3% |
| 1986 | -162.26 Millimetres per year | -32.4% |
| 1987 | -547.34 Millimetres per year | +237.3% |
| 1988 | 51.77 Millimetres per year | -109.5% |
| 1989 | 219.09 Millimetres per year | +323.2% |
| 1990 | -4.39 Millimetres per year | -102.0% |
| 1991 | -268.92 Millimetres per year | +6028.9% |
| 1992 | -453.8 Millimetres per year | +68.7% |
| 1993 | -223.63 Millimetres per year | -50.7% |
| 1994 | -455.71 Millimetres per year | +103.8% |
| 1995 | -503.67 Millimetres per year | +10.5% |
| 1996 | 156.05 Millimetres per year | -131.0% |
| 1997 | 197.68 Millimetres per year | +26.7% |
| 1998 | -357.56 Millimetres per year | -280.9% |
| 1999 | 360.48 Millimetres per year | -200.8% |
| 2000 | 655.1 Millimetres per year | +81.7% |
| 2001 | 1.95 Millimetres per year | -99.7% |
| 2002 | 131.15 Millimetres per year | +6631.3% |
| 2003 | -150.72 Millimetres per year | -214.9% |
| 2004 | 188.61 Millimetres per year | -225.1% |
| 2005 | 342.51 Millimetres per year | +81.6% |
| 2006 | 256.87 Millimetres per year | -25.0% |
| 2007 | 578.3 Millimetres per year | +125.1% |
| 2008 | 253.47 Millimetres per year | -56.2% |
| 2009 | 171.12 Millimetres per year | -32.5% |
| 2010 | 123.2 Millimetres per year | -28.0% |
| 2011 | 484.27 Millimetres per year | +293.1% |
| 2012 | 450.89 Millimetres per year | -6.9% |
| 2013 | 563.13 Millimetres per year | +24.9% |
| 2014 | -86.11 Millimetres per year | -115.3% |
| 2015 | -354.05 Millimetres per year | +311.1% |
| 2016 | 203.35 Millimetres per year | -157.4% |
| 2017 | 857.94 Millimetres per year | +321.9% |
| 2018 | 416.29 Millimetres per year | -51.5% |
| 2019 | 730.91 Millimetres per year | +75.6% |
| 2020 | 456.56 Millimetres per year | -37.5% |
| 2021 | 557.03 Millimetres per year | +22.0% |
| 2022 | 788.43 Millimetres per year | +41.5% |
| 2023 | 305.14 Millimetres per year | -61.3% |
Tonga compared with similar countries
- Tonga's 305.14 Millimetres per year is above the median for upper middle income countries, which is 3.81 Millimetres per year, 80.2× the median. (51 countries reporting)
- Tonga's 305.14 Millimetres per year is above the median for East Asia & Pacific, which is 112.79 Millimetres per year, 2.7× the median. (31 countries reporting)
Biggest year-on-year movements
Years where Exposure to extreme precipitation — Annual precipitation change 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.
| Year | Change | From | To |
|---|---|---|---|
| 2002 | +6631.3% | 1.95 Millimetres per year | 131.15 Millimetres per year |
| 1991 | -6028.9% | -4.39 Millimetres per year | -268.92 Millimetres per year |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | -52.98 Millimetres per year | -52.98 Millimetres per year | -52.98 Millimetres per year | 1 |
| 1980s | -85.47 Millimetres per year | -547.34 Millimetres per year | 219.09 Millimetres per year | 10 |
| 1990s | -155.35 Millimetres per year | -503.67 Millimetres per year | 360.48 Millimetres per year | 10 |
| 2000s | 242.84 Millimetres per year | -150.72 Millimetres per year | 655.1 Millimetres per year | 10 |
| 2010s | 338.98 Millimetres per year | -354.05 Millimetres per year | 857.94 Millimetres per year | 10 |
| 2020s | 526.79 Millimetres per year | 305.14 Millimetres per year | 788.43 Millimetres per year | 4 |
Countries ranked near Tonga
- 17 Bermuda 348.82 Millimetres per year compare
- 17 Mauritania -30.97 Millimetres per year compare
- 18 Northern Mariana Islands 333.69 Millimetres per year compare
- 19 Wallis and Futuna 322.08 Millimetres per year compare
- 21 Liechtenstein 294.36 Millimetres per year compare
- 22 Kiribati 266.13 Millimetres per year compare
- 23 Isle of Man 247.08 Millimetres per year compare
More reference data data for Tonga
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.0105 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 0.0092 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 0.0197 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 0.0197 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 0.0353 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 0.0269 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 0.0446 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 0.1068 (2050)
- Emission Totals - Emissions (N2O) - Agricultural Soils 0.0799 (2050)
- Emission Totals - Emissions (CO2eq) from N2O (AR5) - Manure applied 9.35 (2050)
Frequently asked questions
- What is exposure to extreme precipitation — annual precipitation change in Tonga?
- Exposure to extreme precipitation — annual precipitation change in Tonga was 305.14 Millimetres per year in 2023, according to Organisation for Economic Co-operation and Development.
- What is the highest exposure to extreme precipitation — annual precipitation change recorded in Tonga?
- The highest recorded value was 857.94 Millimetres per year in 2017.
- What is the lowest exposure to extreme precipitation — annual precipitation change recorded in Tonga?
- The lowest recorded value was -547.34 Millimetres per year in 1987.
- How does Tonga rank for exposure to extreme precipitation — annual precipitation change?
- Tonga ranks 20th out of 222 countries with data for 2023.
- Is exposure to extreme precipitation — annual precipitation change rising or falling in Tonga?
- Over the last ten years it is down 45.8%. The long-run trend across the full record is volatile.
- Where does this Tonga data come from?
- The figures come from Organisation for Economic Co-operation and Development, published as part of Exposure to extreme precipitation — Annual precipitation change. Statizoid updates them automatically from the source API.
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About this data
The dataset provides a global assessment of changes in average precipitation by providing the precipitation anomaly and provides a global assessment of extreme precipitation through the use of two precipitation indices, i.e. very heavy precipitation days and frequency of extreme precipitation events. Exposure indicators to extreme precipitation have been prepared jointly by the Organisation for Economic Co-operation and Development (OECD) and the International Energy Agency (IEA). Please see the working paper for a more complete description of the methods. The datasets span the period 1979-2022, depending on data availability and are the result of the use of a variety of geospatial data sources as referenced in the Working Paper. The dataset has a global coverage on a national level; on the sub-national TL2 level (i.e. large subnational regions) results are reported for all OECD countries as well as for Argentina, Brazil, China, India, Indonesia and South Africa. A number of aggregates are included: Euro area, European Union, Advanced economies, Emerging market economies, G7, G20, OECD, OECD Europe, OECD Asia Oceania, OECD Americas and the LAC region. Data source(s): Copernicus Climate Data Store precipitation data (ERA5) and Copernicus Climate Change Initiative land cover data. Contact: ENV.Stat@oecd.org Database documentation