El Salvador vs Gambia: Standardised Precipitation-Evapotranspiration Index

El Salvador
-0.5258
in 2023
Gambia
-0.5534
in 2023
El Salvador rank
107th
Gambia rank
108th

Standardised Precipitation-Evapotranspiration Index over time

  • El Salvador
  • Gambia
-2-1012196019912023

How they compare

El Salvador currently reports -0.5258 against -0.5534 in Gambia, a difference of 0.0276.

The two have swapped places 32 times across 64 shared years of data; in 1960 it was El Salvador ahead.

El Salvador ranks 107th and Gambia ranks 108th of 189 countries.

Across the 7 decades both report, El Salvador averaged higher in 5 and Gambia in 2.

Head to head by decade

Decade El Salvador Gambia Difference Ahead
1960s 0.3751 0.5108 0.1356 Gambia
1970s -0.413 -0.5784 0.1654 El Salvador
1980s 0.0504 -0.7709 0.8213 El Salvador
1990s 0.0304 -0.7289 0.7593 El Salvador
2000s -0.3109 -0.659 0.3482 El Salvador
2010s -0.4399 -0.4555 0.0156 El Salvador
2020s -0.3802 -0.2019 0.1783 Gambia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher standardised precipitation-evapotranspiration index, El Salvador or Gambia?
El Salvador, at -0.5258 against -0.5534 in Gambia as of 2023.
What is the difference in standardised precipitation-evapotranspiration index between El Salvador and Gambia?
0.0276, with El Salvador ahead.
How many years of comparable data are there for El Salvador and Gambia?
64 years are reported by both, from 1960 to 2023.
How do El Salvador and Gambia rank globally for standardised precipitation-evapotranspiration index?
El Salvador ranks 107th and Gambia ranks 108th of 189 countries.
Where does this data come from?
Global SPEI database (SPEIbase). https://spei.csic.es/database.html, published as Standardised Precipitation-Evapotranspiration Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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El Salvador vs Gambia: Standardised Precipitation-Evapotranspiration Index. Statizoid, drawing on Global SPEI database (SPEIbase). https://spei.csic.es/database.html. Retrieved 29 August 2026, from https://environment.statizoid.com/compare/standardised-precipitation-evapotranspiration-index/el-salvador/gambia-the/

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About this data

Indicator
Standardised Precipitation-Evapotranspiration Index
Source
Global SPEI database (SPEIbase). https://spei.csic.es/database.html
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
189 places, 12,095 data points, 1960–2023
Last refreshed

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.