Autumn temperature anomalies in Iran
Iran: Autumn temperature anomalies was 1.27 °C in 2025. ◆ Volatile
Latest (2025)
1.27 °C
Change on year
up 58.8%
World rank
39th
of 193 countries
All-time high
1.63 °C
in 2021
All-time low
-2.81 °C
in 1962
Years of data
86
1940–2025
Autumn temperature anomalies in Iran, 1940–2025
Source: Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data. Measured in °C.
Analysis
In 2025, autumn temperature anomalies in Iran stood at 1.27 °C.
That represents a change of up 58.8% on the previous year and up 370.9% over ten years.
Over the whole period, autumn temperature anomalies in Iran peaked at 1.63 °C in 2021 and was at its lowest, -2.81 °C, in 1962.
That places Iran 39th out of 193 countries with data for 2025, putting it in the top quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Autumn temperature anomalies in Iran, year by year
| Year | °C | Change |
|---|---|---|
| 1940 | -1.53 °C | — |
| 1941 | -1.15 °C | -24.9% |
| 1942 | -0.9771 °C | -15.0% |
| 1943 | -1.17 °C | +19.4% |
| 1944 | -1.82 °C | +56.0% |
| 1945 | -0.6638 °C | -63.5% |
| 1946 | -1.59 °C | +138.9% |
| 1947 | -1.09 °C | -31.2% |
| 1948 | -0.9171 °C | -15.9% |
| 1949 | -1.31 °C | +43.0% |
| 1950 | -1.65 °C | +26.1% |
| 1951 | 0.0808 °C | -104.9% |
| 1952 | -1.5 °C | -1954.6% |
| 1953 | -1.13 °C | -24.5% |
| 1954 | -1.72 °C | +52.2% |
| 1955 | -0.5994 °C | -65.2% |
| 1956 | -1.64 °C | +173.3% |
| 1957 | -1.8 °C | +9.9% |
| 1958 | -0.9285 °C | -48.4% |
| 1959 | -0.0621 °C | -93.3% |
| 1960 | -0.8906 °C | +1334.6% |
| 1961 | -0.8454 °C | -5.1% |
| 1962 | -2.81 °C | +232.2% |
| 1963 | -0.8232 °C | -70.7% |
| 1964 | -1.57 °C | +90.6% |
| 1965 | -1.49 °C | -4.9% |
| 1966 | -1.12 °C | -25.2% |
| 1967 | -0.9336 °C | -16.4% |
| 1968 | -0.7597 °C | -18.6% |
| 1969 | -2.16 °C | +183.9% |
| 1970 | -1.46 °C | -32.3% |
| 1971 | -1.88 °C | +28.7% |
| 1972 | -0.8325 °C | -55.7% |
| 1973 | -1.02 °C | +22.4% |
| 1974 | -1.32 °C | +29.1% |
| 1975 | -0.7729 °C | -41.2% |
| 1976 | -0.3896 °C | -49.6% |
| 1977 | -0.7276 °C | +86.8% |
| 1978 | -0.4851 °C | -33.3% |
| 1979 | -0.6709 °C | +38.3% |
| 1980 | -1.27 °C | +88.9% |
| 1981 | -1.7 °C | +34.1% |
| 1982 | -1.67 °C | -2.0% |
| 1983 | -0.8762 °C | -47.4% |
| 1984 | -1.58 °C | +80.1% |
| 1985 | -1.08 °C | -31.9% |
| 1986 | -1.57 °C | +46.0% |
| 1987 | -0.6829 °C | -56.5% |
| 1988 | -0.6508 °C | -4.7% |
| 1989 | -0.8383 °C | +28.8% |
| 1990 | 0.5309 °C | -163.3% |
| 1991 | -0.8794 °C | -265.6% |
| 1992 | -2.19 °C | +148.9% |
| 1993 | -0.2043 °C | -90.7% |
| 1994 | -2.57 °C | +1159.3% |
| 1995 | -0.6617 °C | -74.3% |
| 1996 | 0.5988 °C | -190.5% |
| 1997 | -0.3902 °C | -165.2% |
| 1998 | 0.1097 °C | -128.1% |
| 1999 | -0.2418 °C | -320.4% |
| 2000 | 0.4847 °C | -300.5% |
| 2001 | 0.2175 °C | -55.1% |
| 2002 | 0.7879 °C | +262.3% |
| 2003 | -0.2921 °C | -137.1% |
| 2004 | -0.4553 °C | +55.9% |
| 2005 | 0.7286 °C | -260.0% |
| 2006 | -0.4665 °C | -164.0% |
| 2007 | -0.4303 °C | -7.8% |
| 2008 | 0.5736 °C | -233.3% |
| 2009 | -0.1908 °C | -133.3% |
| 2010 | -0.1628 °C | -14.7% |
| 2011 | 0.0969 °C | -159.5% |
| 2012 | -0.2295 °C | -336.8% |
| 2013 | 1.06 °C | -563.0% |
| 2014 | 1.35 °C | +27.0% |
| 2015 | -0.4687 °C | -134.7% |
| 2016 | 1.32 °C | -381.8% |
| 2017 | 0.4874 °C | -63.1% |
| 2018 | 0.8685 °C | +78.2% |
| 2019 | 1.47 °C | +69.5% |
| 2020 | -0.3236 °C | -122.0% |
| 2021 | 1.63 °C | -603.3% |
| 2022 | 1.46 °C | -10.6% |
| 2023 | 1.25 °C | -14.2% |
| 2024 | 0.7997 °C | -36.0% |
| 2025 | 1.27 °C | +58.8% |
Iran compared with similar countries
- Iran's 1.27 °C is above the median for upper middle income countries, which is 0.5965 °C, 2.1× the median. (50 countries reporting)
- Iran's 1.27 °C is above the median for Middle East, North Africa, Afghanistan & Pakistan, which is 0.7158 °C, 1.8× the median. (22 countries reporting)
Biggest year-on-year movements
Years where Autumn temperature anomalies in Iran changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1952 | -1954.6% | 0.0808 °C | -1.5 °C |
| 1960 | -1334.6% | -0.0621 °C | -0.8906 °C |
| 1994 | -1159.3% | -0.2043 °C | -2.57 °C |
| 2021 | +603.3% | -0.3236 °C | 1.63 °C |
| 2013 | +563.0% | -0.2295 °C | 1.06 °C |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | -1.22 °C | -1.82 °C | -0.6638 °C | 10 |
| 1950s | -1.1 °C | -1.8 °C | 0.0808 °C | 10 |
| 1960s | -1.34 °C | -2.81 °C | -0.7597 °C | 10 |
| 1970s | -0.9551 °C | -1.88 °C | -0.3896 °C | 10 |
| 1980s | -1.19 °C | -1.7 °C | -0.6508 °C | 10 |
| 1990s | -0.5899 °C | -2.57 °C | 0.5988 °C | 10 |
| 2000s | 0.0957 °C | -0.4665 °C | 0.7879 °C | 10 |
| 2010s | 0.5796 °C | -0.4687 °C | 1.47 °C | 10 |
| 2020s | 1.01 °C | -0.3236 °C | 1.63 °C | 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 autumn temperature anomalies in Iran?
- Autumn temperature anomalies in Iran was 1.27 °C in 2025, according to Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data.
- What is the highest autumn temperature anomalies recorded in Iran?
- The highest recorded value was 1.63 °C in 2021.
- What is the lowest autumn temperature anomalies recorded in Iran?
- The lowest recorded value was -2.81 °C in 1962.
- How does Iran rank for autumn temperature anomalies?
- Iran ranks 39th out of 193 countries with data for 2025.
- Is autumn temperature anomalies rising or falling in Iran?
- Over the last ten years it is up 370.9%. The long-run trend across the full record is volatile.
- 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 Autumn temperature anomalies. 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
Difference in a specific month's average surface temperature from the mean temperature of the same month during the period 1991-2020, measured in degrees Celsius.