Historical exposure to drought — Land soil moisture anomaly in Iran
Iran: Historical exposure to drought — Land soil moisture anomaly was -30.46 Percentage change in 2025. ◆ Volatile
Historical exposure to drought — Land soil moisture anomaly in Iran, 1950–2025
Source: Organisation for Economic Co-operation and Development. Measured in Percentage change.
Analysis
Iran recorded -30.46 Percentage change for historical exposure to drought — land soil moisture anomaly in 2025. That is the lowest value across all 76 years on record.
Compared with earlier readings it is down 273.5% on the previous year and down 547.4% over ten years.
Over the whole period, historical exposure to drought — land soil moisture anomaly in Iran peaked at 33.08 Percentage change in 1957 and was at its lowest, -30.46 Percentage change, in 2025.
Iran ranks 219th of 232 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 6.5 Percentage change | -16.46 Percentage change | 33.08 Percentage change | 10 |
| 1960s | -9.64 Percentage change | -22.16 Percentage change | 7.56 Percentage change | 10 |
| 1970s | 2.89 Percentage change | -14.94 Percentage change | 19.65 Percentage change | 10 |
| 1980s | 5.08 Percentage change | -6.16 Percentage change | 23.51 Percentage change | 10 |
| 1990s | 1.66 Percentage change | -12.82 Percentage change | 16.58 Percentage change | 10 |
| 2000s | -4.43 Percentage change | -16.96 Percentage change | 9.28 Percentage change | 10 |
| 2010s | -3.78 Percentage change | -10.79 Percentage change | 7.1 Percentage change | 10 |
| 2020s | -11.54 Percentage change | -30.46 Percentage change | 13.39 Percentage change | 6 |
Countries ranked near Iran
More environment data for Iran
- Historical exposure to drought — Cropland soil moisture anomaly -21.27 Percentage change (2025)
- Exposure to drought — Land soil moisture anomaly -7.92 Percentage change (2024)
- Exposure to drought — Cropland soil moisture anomaly -3.86 Percentage change (2024)
- Heating Degree Days 2,621 (2024)
- Cooling Degree Days 3,374 (2024)
- Total fisheries production 1.50 million metric tons (2024)
- Capture fisheries production 789,229 metric tons (2024)
- Aquaculture production 709,391 metric tons (2024)
- Nitrous oxide (N2O) emissions from Waste 1.19 Mt CO2e (2024)
- Nitrous oxide (N2O) emissions from Transport (Energy) 4.51 Mt CO2e (2024)
Frequently asked questions
- What is historical exposure to drought — land soil moisture anomaly in Iran?
- Historical exposure to drought — land soil moisture anomaly in Iran was -30.46 Percentage change in 2025, according to Organisation for Economic Co-operation and Development.
- What is the highest historical exposure to drought — land soil moisture anomaly recorded in Iran?
- The highest recorded value was 33.08 Percentage change in 1957.
- What is the lowest historical exposure to drought — land soil moisture anomaly recorded in Iran?
- The lowest recorded value was -30.46 Percentage change in 2025.
- How does Iran rank for historical exposure to drought — land soil moisture anomaly?
- Iran ranks 219th out of 232 countries with data for 2025.
- Is historical exposure to drought — land soil moisture anomaly rising or falling in Iran?
- Over the last ten years it is down 547.4%. The long-run trend across the full record is volatile.
- Where does this Iran data come from?
- The figures come from Organisation for Economic Co-operation and Development, published as part of Historical exposure to drought — Land soil moisture anomaly. Statizoid updates them automatically from the source API.
Download this data
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About this data
The dataset provides annual anomalies in land and cropland soil moisture content of the top soil layer (0 to 7 cm) compared to the reference period 1981-2010. Exposure indicators to drought have been prepared by the Organisation for Economic Co-operation and Development (OECD). Please see the working paper for a more complete description of the methods. The datasets span the period 1981-2024 and is the result of the use of a variety of geospatial data sources, including the ERA5-Land averaged monthly data of volumetric soil moisture and ESA CCI land cover data. Average anomalies have been calculated for both land and cropland exposure to drought. The dataset has a global coverage on a national level; on the sub-national TL2 level (i.e. large subnational regions) results are reported for all OECD countries as well as for Argentina, Brazil, China, India, Indonesia and South Africa. A number of aggregates are included: Euro area, European Union, Advanced economies, Emerging market economies, G7, G20, OECD, OECD Europe, OECD Asia Oceania, OECD Americas and the LAC region. Data source(s): Copernicus Climate Change Initiative land cover data and Copernicus Climate Data Store monthly soil moisture data based on the ERA5-Land reanalysis dataset. Contact: ENV.Stat@oecd.org