Standardised Precipitation-Evapotranspiration Index in Palau
Palau: Standardised Precipitation-Evapotranspiration Index was 0.8183 in 2023. ◆ Volatile
Standardised Precipitation-Evapotranspiration Index in Palau, 1960–2023
Source: Global SPEI database (SPEIbase). https://spei.csic.es/database.html.
Analysis
In 2023, standardised precipitation-evapotranspiration index in Palau stood at 0.8183.
That represents a change of down 56.7% on the previous year and up 145.9% over ten years.
Over the whole period, standardised precipitation-evapotranspiration index in Palau peaked at 2.17 in 2011 and was at its lowest, -2.44, in 2015.
Palau ranks 19th of 189 countries on this measure, in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Standardised Precipitation-Evapotranspiration Index in Palau, year by year
| Year | Value | Change |
|---|---|---|
| 1960 | 0.397 | — |
| 1961 | 1.14 | +187.7% |
| 1962 | 1.59 | +38.9% |
| 1963 | -0.5475 | -134.5% |
| 1964 | -0.9125 | +66.7% |
| 1965 | 0.7364 | -180.7% |
| 1966 | -0.4488 | -160.9% |
| 1967 | -0.3724 | -17.0% |
| 1968 | -1.02 | +173.6% |
| 1969 | -0.8868 | -13.0% |
| 1970 | -1.73 | +95.4% |
| 1971 | 0.7808 | -145.1% |
| 1972 | 0.1409 | -82.0% |
| 1973 | -1.5 | -1161.2% |
| 1974 | 2.03 | -235.8% |
| 1975 | 0.4304 | -78.8% |
| 1976 | -1.22 | -382.9% |
| 1977 | -1.57 | +28.6% |
| 1978 | 0.9005 | -157.5% |
| 1979 | 0.6875 | -23.7% |
| 1980 | 1.18 | +72.0% |
| 1981 | 0.2026 | -82.9% |
| 1982 | -0.6119 | -402.0% |
| 1983 | -1.61 | +162.8% |
| 1984 | 0.2345 | -114.6% |
| 1985 | 0.9713 | +314.2% |
| 1986 | 0.6987 | -28.1% |
| 1987 | 0.55 | -21.3% |
| 1988 | 0.6938 | +26.1% |
| 1989 | -0.0227 | -103.3% |
| 1990 | -0.1553 | +584.1% |
| 1991 | 1.38 | -991.0% |
| 1992 | -1.41 | -201.6% |
| 1993 | -1.18 | -16.1% |
| 1994 | -1.67 | +42.0% |
| 1995 | -0.6857 | -59.1% |
| 1996 | -1.1 | +60.6% |
| 1997 | -2.01 | +82.3% |
| 1998 | -1.91 | -4.7% |
| 1999 | 1.12 | -158.6% |
| 2000 | 0.2535 | -77.4% |
| 2001 | 1.24 | +387.9% |
| 2002 | -0.9436 | -176.3% |
| 2003 | 1.74 | -284.0% |
| 2004 | -1.57 | -190.5% |
| 2005 | 1.12 | -171.2% |
| 2006 | 0.7074 | -36.8% |
| 2007 | -0.7193 | -201.7% |
| 2008 | 0.5953 | -182.8% |
| 2009 | 0.6495 | +9.1% |
| 2010 | -1.79 | -376.2% |
| 2011 | 2.17 | -221.2% |
| 2012 | -0.7344 | -133.8% |
| 2013 | -1.78 | +142.7% |
| 2014 | 0.1303 | -107.3% |
| 2015 | -2.44 | -1973.7% |
| 2016 | -1.62 | -33.8% |
| 2017 | 1.63 | -201.0% |
| 2018 | -0.9261 | -156.8% |
| 2019 | -0.2864 | -69.1% |
| 2020 | 0.3528 | -223.2% |
| 2021 | 2.13 | +503.9% |
| 2022 | 1.89 | -11.2% |
| 2023 | 0.8183 | -56.7% |
Palau compared with similar countries
- Palau's 0.8183 is above the median for high income countries, which is -0.3666. (63 countries reporting)
- Palau's 0.8183 is above the median for East Asia & Pacific, which is 0.0249, 32.9× the median. (27 countries reporting)
Biggest year-on-year movements
Years where Standardised Precipitation-Evapotranspiration Index in Palau 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 |
|---|---|---|---|
| 2015 | -1973.7% | 0.1303 | -2.44 |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | -0.0325 | -1.02 | 1.59 | 10 |
| 1970s | -0.1041 | -1.73 | 2.03 | 10 |
| 1980s | 0.2291 | -1.61 | 1.18 | 10 |
| 1990s | -0.7621 | -2.01 | 1.38 | 10 |
| 2000s | 0.3063 | -1.57 | 1.74 | 10 |
| 2010s | -0.5645 | -2.44 | 2.17 | 10 |
| 2020s | 1.3 | 0.3528 | 2.13 | 4 |
Countries ranked near Palau
More environment data for Palau
- Historical exposure to drought — Land soil moisture anomaly 14.18 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.167 °C (2025)
- Temperature change 1.05 °C (2025)
- Cropland — Area per capita 0.13 ha/cap (2024)
- Cropland — Share in Land area 5 % (2024)
- Arable land — Area 0.3 1000 ha (2024)
- Arable land — Share in Agricultural land 6.98 % (2024)
- Permanent crops — Area 2 1000 ha (2024)
- Permanent meadows and pastures — Share in Agricultural land 46.51 % (2024)
Frequently asked questions
- What is standardised precipitation-evapotranspiration index in Palau?
- Standardised precipitation-evapotranspiration index in Palau was 0.8183 in 2023, according to Global SPEI database (SPEIbase). https://spei.csic.es/database.html.
- What is the highest standardised precipitation-evapotranspiration index recorded in Palau?
- The highest recorded value was 2.17 in 2011.
- What is the lowest standardised precipitation-evapotranspiration index recorded in Palau?
- The lowest recorded value was -2.44 in 2015.
- How does Palau rank for standardised precipitation-evapotranspiration index?
- Palau ranks 19th out of 189 countries with data for 2023.
- Is standardised precipitation-evapotranspiration index rising or falling in Palau?
- Over the last ten years it is up 145.9%. The long-run trend across the full record is volatile.
- Where does this Palau data come from?
- The figures come from Global SPEI database (SPEIbase). https://spei.csic.es/database.html, published as part of Standardised Precipitation-Evapotranspiration Index. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 64 observations, free to reuse under CC BY 4.0 (World Bank Open Data).
About this data
The SPEI fulfills the requirements of a drought index since its multi-scalar character enables it to be used by different scientific disciplines to detect, monitor, and analyze droughts. Like the sc-PDSI and the SPI, the SPEI can measure drought severity according to its intensity and duration, and can identify the onset and end of drought episodes. The SPEI allows comparison of drought severity through time and space, since it can be calculated over a wide range of climates, as can the SPI.