Annual precipitation in Iran
Iran: Annual precipitation was 212.24 millimeters in 2025. ▬ Flat
Latest (2025)
212.24 millimeters
Change on year
down 30.4%
World rank
168th
of 192 countries
All-time high
476.38 millimeters
in 1953
All-time low
169.26 millimeters
in 1940
Years of data
86
1940–2025
Annual precipitation in Iran, 1940–2025
Source: Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data. Measured in millimeters.
Analysis
In 2025, annual precipitation in Iran stood at 212.24 millimeters.
That represents a change of down 30.4% on the previous year and down 28.5% over ten years.
Over the whole period, annual precipitation in Iran peaked at 476.38 millimeters in 1953 and was at its lowest, 169.26 millimeters, in 1940.
That places Iran 168th out of 192 countries with data for 2025, putting it in the bottom quarter.
Annual precipitation in Iran, year by year
| Year | millimeters | Change |
|---|---|---|
| 1940 | 169.26 millimeters | — |
| 1941 | 187.13 millimeters | +10.6% |
| 1942 | 218.58 millimeters | +16.8% |
| 1943 | 263.38 millimeters | +20.5% |
| 1944 | 205.99 millimeters | -21.8% |
| 1945 | 215.83 millimeters | +4.8% |
| 1946 | 187.08 millimeters | -13.3% |
| 1947 | 266.43 millimeters | +42.4% |
| 1948 | 288.86 millimeters | +8.4% |
| 1949 | 341.07 millimeters | +18.1% |
| 1950 | 272.88 millimeters | -20.0% |
| 1951 | 353.5 millimeters | +29.5% |
| 1952 | 289.29 millimeters | -18.2% |
| 1953 | 476.38 millimeters | +64.7% |
| 1954 | 382.42 millimeters | -19.7% |
| 1955 | 252.02 millimeters | -34.1% |
| 1956 | 259.42 millimeters | +2.9% |
| 1957 | 400.94 millimeters | +54.6% |
| 1958 | 199.49 millimeters | -50.2% |
| 1959 | 259.84 millimeters | +30.3% |
| 1960 | 241.28 millimeters | -7.1% |
| 1961 | 257.96 millimeters | +6.9% |
| 1962 | 200.44 millimeters | -22.3% |
| 1963 | 288.78 millimeters | +44.1% |
| 1964 | 240.85 millimeters | -16.6% |
| 1965 | 278.14 millimeters | +15.5% |
| 1966 | 223.84 millimeters | -19.5% |
| 1967 | 258.6 millimeters | +15.5% |
| 1968 | 322.63 millimeters | +24.8% |
| 1969 | 346.76 millimeters | +7.5% |
| 1970 | 214.52 millimeters | -38.1% |
| 1971 | 262.99 millimeters | +22.6% |
| 1972 | 404.57 millimeters | +53.8% |
| 1973 | 194.98 millimeters | -51.8% |
| 1974 | 350.73 millimeters | +79.9% |
| 1975 | 269.77 millimeters | -23.1% |
| 1976 | 346.28 millimeters | +28.4% |
| 1977 | 308.78 millimeters | -10.8% |
| 1978 | 256.92 millimeters | -16.8% |
| 1979 | 305.67 millimeters | +19.0% |
| 1980 | 311.07 millimeters | +1.8% |
| 1981 | 276.57 millimeters | -11.1% |
| 1982 | 365.02 millimeters | +32.0% |
| 1983 | 233.04 millimeters | -36.2% |
| 1984 | 282.81 millimeters | +21.4% |
| 1985 | 235.19 millimeters | -16.8% |
| 1986 | 360.69 millimeters | +53.4% |
| 1987 | 260.1 millimeters | -27.9% |
| 1988 | 299.77 millimeters | +15.2% |
| 1989 | 244.54 millimeters | -18.4% |
| 1990 | 225.99 millimeters | -7.6% |
| 1991 | 347.25 millimeters | +53.7% |
| 1992 | 364.72 millimeters | +5.0% |
| 1993 | 335.07 millimeters | -8.1% |
| 1994 | 300.33 millimeters | -10.4% |
| 1995 | 287.62 millimeters | -4.2% |
| 1996 | 354.09 millimeters | +23.1% |
| 1997 | 317.71 millimeters | -10.3% |
| 1998 | 292.05 millimeters | -8.1% |
| 1999 | 259.24 millimeters | -11.2% |
| 2000 | 236.22 millimeters | -8.9% |
| 2001 | 210.38 millimeters | -10.9% |
| 2002 | 276.1 millimeters | +31.2% |
| 2003 | 282.99 millimeters | +2.5% |
| 2004 | 324.23 millimeters | +14.6% |
| 2005 | 280.87 millimeters | -13.4% |
| 2006 | 290.88 millimeters | +3.6% |
| 2007 | 285.03 millimeters | -2.0% |
| 2008 | 202.84 millimeters | -28.8% |
| 2009 | 295.44 millimeters | +45.7% |
| 2010 | 198.69 millimeters | -32.7% |
| 2011 | 296.24 millimeters | +49.1% |
| 2012 | 286.47 millimeters | -3.3% |
| 2013 | 261.22 millimeters | -8.8% |
| 2014 | 259.74 millimeters | -0.6% |
| 2015 | 296.9 millimeters | +14.3% |
| 2016 | 252.55 millimeters | -14.9% |
| 2017 | 260.04 millimeters | +3.0% |
| 2018 | 294.34 millimeters | +13.2% |
| 2019 | 389.25 millimeters | +32.2% |
| 2020 | 359.46 millimeters | -7.7% |
| 2021 | 171.45 millimeters | -52.3% |
| 2022 | 234.04 millimeters | +36.5% |
| 2023 | 240.43 millimeters | +2.7% |
| 2024 | 304.86 millimeters | +26.8% |
| 2025 | 212.24 millimeters | -30.4% |
Iran compared with similar countries
- Iran's 212.24 millimeters is below the median for upper middle income countries, which is 1,018 millimeters, 21% of the median. (50 countries reporting)
- Iran's 212.24 millimeters is above the median for Middle East, North Africa, Afghanistan & Pakistan, which is 115.13 millimeters, 1.8× the median. (22 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | 234.36 millimeters | 169.26 millimeters | 341.07 millimeters | 10 |
| 1950s | 314.62 millimeters | 199.49 millimeters | 476.38 millimeters | 10 |
| 1960s | 265.93 millimeters | 200.44 millimeters | 346.76 millimeters | 10 |
| 1970s | 291.52 millimeters | 194.98 millimeters | 404.57 millimeters | 10 |
| 1980s | 286.88 millimeters | 233.04 millimeters | 365.02 millimeters | 10 |
| 1990s | 308.41 millimeters | 225.99 millimeters | 364.72 millimeters | 10 |
| 2000s | 268.5 millimeters | 202.84 millimeters | 324.23 millimeters | 10 |
| 2010s | 279.54 millimeters | 198.69 millimeters | 389.25 millimeters | 10 |
| 2020s | 253.75 millimeters | 171.45 millimeters | 359.46 millimeters | 6 |
Countries ranked near Iran
More climate change data for Iran
- Spring temperature anomalies 0.0713 °C (2026)
- Summer temperature anomalies 1.08 °C (2026)
- Temperature anomalies by month 0.2419 °C (2026)
- Share of global CO₂ emissions and population 0.8% (2100)
- Population, total, annual growth rate 0.9283 % change on previous year (2025)
- Population, total, per unit of GDP 0.0003 units per US$ of GDP (2025)
- Urban population, annual growth rate 1.39 % change on previous year (2025)
- Urban population, per unit of GDP 0.0002 units per US$ of GDP (2025)
- Urban population, per capita 0.7738 units per person (2025)
- Precipitation anomalies, annual growth rate -620.65 % change on previous year (2025)
Frequently asked questions
- What is annual precipitation in Iran?
- Annual precipitation in Iran was 212.24 millimeters in 2025, according to Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data.
- What is the highest annual precipitation recorded in Iran?
- The highest recorded value was 476.38 millimeters in 1953.
- What is the lowest annual precipitation recorded in Iran?
- The lowest recorded value was 169.26 millimeters in 1940.
- How does Iran rank for annual precipitation?
- Iran ranks 168th out of 192 countries with data for 2025.
- Is annual precipitation rising or falling in Iran?
- Over the last ten years it is down 28.5%. The long-run trend across the full record is flat.
- Where does this Iran data come from?
- The figures come from Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data, published as part of Annual precipitation. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 86 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Total annual precipitation—rain and snow—calculated as the sum of daily averages, reported as the depth of water falling to Earth's surface, excluding fog and dew.