San Marino vs Sudan: Standardised Precipitation-Evapotranspiration Index
Standardised Precipitation-Evapotranspiration Index over time
- San Marino
- Sudan
How they compare
Sudan currently reports -1.11 against -1.16 in San Marino, a difference of 0.05.
The two have swapped places 33 times across 64 shared years of data; in 1960 it was San Marino ahead.
San Marino ranks 150th and Sudan ranks 147th of 189 countries.
Across the 7 decades both report, San Marino averaged higher in 4 and Sudan in 3.
Head to head by decade
| Decade | San Marino | Sudan | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0.2563 | 0.6679 | 0.4116 | Sudan |
| 1970s | 0.5166 | 0.5433 | 0.0267 | Sudan |
| 1980s | 0.2903 | -0.2778 | 0.5681 | San Marino |
| 1990s | 0.1573 | 0.0342 | 0.1231 | San Marino |
| 2000s | 0.0525 | -1.18 | 1.23 | San Marino |
| 2010s | -0.7273 | -0.7824 | 0.0551 | San Marino |
| 2020s | -1.62 | -0.1915 | 1.43 | Sudan |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher standardised precipitation-evapotranspiration index, San Marino or Sudan?
- Sudan, at -1.11 against -1.16 in San Marino as of 2023.
- What is the difference in standardised precipitation-evapotranspiration index between San Marino and Sudan?
- 0.05, with Sudan ahead.
- How many years of comparable data are there for San Marino and Sudan?
- 64 years are reported by both, from 1960 to 2023.
- How do San Marino and Sudan rank globally for standardised precipitation-evapotranspiration index?
- San Marino ranks 150th and Sudan ranks 147th 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.
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.