Annex I countries vs Iran (Islamic Republic of): Temperature change
Temperature change over time
- Annex I countries
- Iran (Islamic Republic of)
How they compare
Annex I countries currently reports 2.42 °C against 2.07 °C in Iran (Islamic Republic of), a difference of 0.35 °C.
That makes Annex I countries's figure about 1.2 times Iran (Islamic Republic of)'s.
The two have swapped places 32 times across 65 shared years of data; in 1961 it was Annex I countries ahead.
Annex I countries ranks 6th and Iran (Islamic Republic of) ranks 3rd of 33 groups.
Across the 7 decades both report, Annex I countries averaged higher in 3 and Iran (Islamic Republic of) in 4.
Head to head by decade
| Decade | Annex I countries | Iran (Islamic Republic of) | Difference | Ahead |
|---|---|---|---|---|
| 1960s | -0.0283 °C | 0.0006 °C | 0.0289 °C | Iran (Islamic Republic of) |
| 1970s | -0.0021 °C | -0.0249 °C | 0.0228 °C | Annex I countries |
| 1980s | 0.3339 °C | 0.2652 °C | 0.0687 °C | Annex I countries |
| 1990s | 0.6668 °C | 0.5138 °C | 0.153 °C | Annex I countries |
| 2000s | 1.12 °C | 1.22 °C | 0.0986 °C | Iran (Islamic Republic of) |
| 2010s | 1.46 °C | 1.57 °C | 0.1125 °C | Iran (Islamic Republic of) |
| 2020s | 2.02 °C | 2.04 °C | 0.0213 °C | Iran (Islamic Republic of) |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher temperature change, Annex I countries or Iran (Islamic Republic of)?
- Annex I countries, at 2.42 °C against 2.07 °C in Iran (Islamic Republic of) as of 2025.
- What is the difference in temperature change between Annex I countries and Iran (Islamic Republic of)?
- 0.35 °C, with Annex I countries ahead.
- How many years of comparable data are there for Annex I countries and Iran (Islamic Republic of)?
- 65 years are reported by both, from 1961 to 2025.
- How do Annex I countries and Iran (Islamic Republic of) rank globally for temperature change?
- Annex I countries ranks 6th and Iran (Islamic Republic of) ranks 3rd of 33 groups.
- Where does this data come from?
- Food and Agriculture Organization of the United Nations, published as Temperature change. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
The FAOSTAT Temperature change on land domain disseminates statistics of mean surface temperature change by country, with annual updates. Statistics are available for monthly, seasonal and annual mean temperature anomalies, i.e., temperature change with respect to a baseline climatology, corresponding to the period 1951–1980. The standard deviation of the temperature change of the baseline methodology is also available. Data are based on the publicly available GISTEMP data, the Global Surface Temperature Change data distributed by the National Aeronautics and Space Administration Goddard Institute for Space Studies (NASA-GISS).