Standardised Precipitation-Evapotranspiration Index in Senegal
Senegal: Standardised Precipitation-Evapotranspiration Index was -0.5964 in 2023. ◆ Volatile
Standardised Precipitation-Evapotranspiration Index in Senegal, 1960–2023
Source: Global SPEI database (SPEIbase). https://spei.csic.es/database.html.
Analysis
In 2023, standardised precipitation-evapotranspiration index in Senegal stood at -0.5964.
That represents a change of down 162.8% on the previous year and down 16.6% over ten years.
Over the whole period, standardised precipitation-evapotranspiration index in Senegal peaked at 1.34 in 1969 and was at its lowest, -2.24, in 2002.
Senegal ranks 110th of 189 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.
Standardised Precipitation-Evapotranspiration Index in Senegal, year by year
| Year | Value | Change |
|---|---|---|
| 1960 | 0.5558 | — |
| 1961 | 0.8487 | +52.7% |
| 1962 | 0.3148 | -62.9% |
| 1963 | 0.4538 | +44.2% |
| 1964 | 0.9156 | +101.8% |
| 1965 | 1.01 | +9.9% |
| 1966 | 0.9443 | -6.2% |
| 1967 | 1.28 | +35.0% |
| 1968 | -1.63 | -228.0% |
| 1969 | 1.34 | -182.1% |
| 1970 | -1.37 | -202.2% |
| 1971 | 0.0603 | -104.4% |
| 1972 | -1.57 | -2707.0% |
| 1973 | -1.46 | -6.8% |
| 1974 | 0.3443 | -123.5% |
| 1975 | 0.752 | +118.4% |
| 1976 | -0.0859 | -111.4% |
| 1977 | -1.73 | +1910.1% |
| 1978 | 0.495 | -128.7% |
| 1979 | -0.4443 | -189.8% |
| 1980 | -1.28 | +187.6% |
| 1981 | -0.3255 | -74.5% |
| 1982 | -0.7321 | +124.9% |
| 1983 | -2 | +173.4% |
| 1984 | -1.01 | -49.7% |
| 1985 | -0.3848 | -61.8% |
| 1986 | -0.3626 | -5.8% |
| 1987 | -1.15 | +216.6% |
| 1988 | -0.4776 | -58.4% |
| 1989 | -0.1895 | -60.3% |
| 1990 | -1.91 | +905.5% |
| 1991 | -1.03 | -45.7% |
| 1992 | -1.24 | +19.4% |
| 1993 | -0.9764 | -21.0% |
| 1994 | 0.0559 | -105.7% |
| 1995 | -0.3922 | -801.6% |
| 1996 | -1.48 | +276.5% |
| 1997 | -1.11 | -24.7% |
| 1998 | -0.5603 | -49.6% |
| 1999 | 1.02 | -282.5% |
| 2000 | -0.6921 | -167.7% |
| 2001 | -1.46 | +111.1% |
| 2002 | -2.24 | +53.2% |
| 2003 | 0.3339 | -114.9% |
| 2004 | -1.28 | -483.2% |
| 2005 | 0.7978 | -162.4% |
| 2006 | -0.9033 | -213.2% |
| 2007 | -1.22 | +34.9% |
| 2008 | 0.089 | -107.3% |
| 2009 | 0.0057 | -93.6% |
| 2010 | 0.8498 | +14808.8% |
| 2011 | -1.43 | -267.9% |
| 2012 | 0.8996 | -163.1% |
| 2013 | -0.5116 | -156.9% |
| 2014 | -1.23 | +139.4% |
| 2015 | -0.394 | -67.8% |
| 2016 | -0.8032 | +103.9% |
| 2017 | -0.8899 | +10.8% |
| 2018 | -0.8422 | -5.4% |
| 2019 | -0.7151 | -15.1% |
| 2020 | -0.6433 | -10.0% |
| 2021 | -0.7935 | +23.3% |
| 2022 | 0.9501 | -219.7% |
| 2023 | -0.5964 | -162.8% |
Senegal compared with similar countries
- Senegal's -0.5964 is below the median for lower middle income countries, which is -0.0753, 7.9× the median. (46 countries reporting)
- Senegal's -0.5964 is below the median for Sub-Saharan Africa, which is -0.1805, 3.3× the median. (48 countries reporting)
Biggest year-on-year movements
Years where Standardised Precipitation-Evapotranspiration Index in Senegal 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 |
|---|---|---|---|
| 2010 | +14808.8% | 0.0057 | 0.8498 |
| 1972 | -2707.0% | 0.0603 | -1.57 |
| 1977 | -1910.1% | -0.0859 | -1.73 |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0.6022 | -1.63 | 1.34 | 10 |
| 1970s | -0.501 | -1.73 | 0.752 | 10 |
| 1980s | -0.7907 | -2 | -0.1895 | 10 |
| 1990s | -0.7614 | -1.91 | 1.02 | 10 |
| 2000s | -0.6565 | -2.24 | 0.7978 | 10 |
| 2010s | -0.5058 | -1.43 | 0.8996 | 10 |
| 2020s | -0.2708 | -0.7935 | 0.9501 | 4 |
Countries ranked near Senegal
More environment data for Senegal
- Historical exposure to drought — Land soil moisture anomaly -1.15 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -2.06 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.432 °C (2025)
- Temperature change 1.48 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 2.08 % 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 -0.1647 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
Frequently asked questions
- What is standardised precipitation-evapotranspiration index in Senegal?
- Standardised precipitation-evapotranspiration index in Senegal was -0.5964 in 2023, according to Global SPEI database (SPEIbase). https://spei.csic.es/database.html.
- What is the highest standardised precipitation-evapotranspiration index recorded in Senegal?
- The highest recorded value was 1.34 in 1969.
- What is the lowest standardised precipitation-evapotranspiration index recorded in Senegal?
- The lowest recorded value was -2.24 in 2002.
- How does Senegal rank for standardised precipitation-evapotranspiration index?
- Senegal ranks 110th out of 189 countries with data for 2023.
- Is standardised precipitation-evapotranspiration index rising or falling in Senegal?
- Over the last ten years it is down 16.6%. The long-run trend across the full record is volatile.
- Where does this Senegal 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.