Grenada vs Samoa: Standardised Precipitation-Evapotranspiration Index
Standardised Precipitation-Evapotranspiration Index over time
- Grenada
- Samoa
How they compare
Samoa currently reports 0.104 against 0.0819 in Grenada, a difference of 0.0221.
That makes Samoa's figure about 1.3 times Grenada's.
The two have swapped places 30 times across 64 shared years of data; in 1960 it was Samoa ahead.
Grenada ranks 66th and Samoa ranks 64th of 188 countries.
Across the 7 decades both report, Grenada averaged higher in 2 and Samoa in 5.
Head to head by decade
| Decade | Grenada | Samoa | Difference | Ahead |
|---|---|---|---|---|
| 1960s | -0.2489 | -0.042 | 0.2069 | Samoa |
| 1970s | 0.212 | 0.3369 | 0.125 | Samoa |
| 1980s | 0.7607 | -0.1813 | 0.9419 | Grenada |
| 1990s | 0.6608 | -0.0771 | 0.7379 | Grenada |
| 2000s | -0.2724 | 0.1238 | 0.3962 | Samoa |
| 2010s | -0.2416 | 0.3074 | 0.549 | Samoa |
| 2020s | -0.4157 | 0.423 | 0.8387 | Samoa |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher standardised precipitation-evapotranspiration index, Grenada or Samoa?
- Samoa, at 0.104 against 0.0819 in Grenada as of 2023.
- What is the difference in standardised precipitation-evapotranspiration index between Grenada and Samoa?
- 0.0221, with Samoa ahead.
- How many years of comparable data are there for Grenada and Samoa?
- 64 years are reported by both, from 1960 to 2023.
- How do Grenada and Samoa rank globally for standardised precipitation-evapotranspiration index?
- Grenada ranks 66th and Samoa ranks 64th of 188 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.
Individual pages
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.