Iceland vs United States: Standardised Precipitation-Evapotranspiration Index
Standardised Precipitation-Evapotranspiration Index over time
- Iceland
- United States
How they compare
Iceland currently reports 0.2221 against 0.1948 in United States, a difference of 0.0273.
That makes Iceland's figure about 1.1 times United States's.
The two have swapped places 31 times across 64 shared years of data; in 1960 it was United States ahead.
Iceland ranks 53rd and United States ranks 56th of 189 countries.
Across the 7 decades both report, Iceland averaged higher in 5 and United States in 2.
Head to head by decade
| Decade | Iceland | United States | Difference | Ahead |
|---|---|---|---|---|
| 1960s | -0.2499 | -0.106 | 0.144 | United States |
| 1970s | 0.5134 | 0.2633 | 0.2501 | Iceland |
| 1980s | 0.2356 | 0.2181 | 0.0175 | Iceland |
| 1990s | 0.6935 | 0.9208 | 0.2272 | United States |
| 2000s | 0.8361 | 0.0858 | 0.7503 | Iceland |
| 2010s | 0.9778 | 0.7204 | 0.2574 | Iceland |
| 2020s | 0.8032 | -0.2023 | 1.01 | Iceland |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher standardised precipitation-evapotranspiration index, Iceland or United States?
- Iceland, at 0.2221 against 0.1948 in United States as of 2023.
- What is the difference in standardised precipitation-evapotranspiration index between Iceland and United States?
- 0.0273, with Iceland ahead.
- How many years of comparable data are there for Iceland and United States?
- 64 years are reported by both, from 1960 to 2023.
- How do Iceland and United States rank globally for standardised precipitation-evapotranspiration index?
- Iceland ranks 53rd and United States ranks 56th 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.