Heat Index 35 in Iran
Iran: Heat Index 35 was 22.54 in 2024. ▲ Rising
Latest (2024)
22.54
Change on year
up 20.8%
World rank
34th
of 166 countries
All-time high
22.54
in 2024
All-time low
3.91
in 1968
Years of data
65
1960–2024
Heat Index 35 in Iran, 1960–2024
Source: World Bank, Climate Change Knowledge Portal. https://climateknowledgeportal.worldbank.org.
Analysis
In 2024, heat index 35 in Iran stood at 22.54. That is the highest value across all 65 years on record.
That represents a change of up 20.8% on the previous year and up 77.8% over ten years.
Over the whole period, heat index 35 in Iran peaked at 22.54 in 2024 and was at its lowest, 3.91, in 1968.
Iran ranks 34th of 166 countries on this measure, in the top quarter.
The long-run direction has been consistently rising across the 65 years of available data.
Heat Index 35 in Iran, year by year
| Year | Value | Change |
|---|---|---|
| 1960 | 6.33 | — |
| 1961 | 6.6 | +4.3% |
| 1962 | 4.97 | -24.7% |
| 1963 | 6.88 | +38.4% |
| 1964 | 7.53 | +9.4% |
| 1965 | 5.28 | -29.9% |
| 1966 | 6.84 | +29.5% |
| 1967 | 5.87 | -14.2% |
| 1968 | 3.91 | -33.4% |
| 1969 | 6.16 | +57.5% |
| 1970 | 8.4 | +36.4% |
| 1971 | 5.83 | -30.6% |
| 1972 | 6.61 | +13.4% |
| 1973 | 7.95 | +20.3% |
| 1974 | 5.69 | -28.4% |
| 1975 | 7.5 | +31.8% |
| 1976 | 6.8 | -9.3% |
| 1977 | 9.24 | +35.9% |
| 1978 | 6.68 | -27.7% |
| 1979 | 8.25 | +23.5% |
| 1980 | 7.9 | -4.2% |
| 1981 | 7.28 | -7.8% |
| 1982 | 6.43 | -11.7% |
| 1983 | 10.22 | +58.9% |
| 1984 | 5.01 | -51.0% |
| 1985 | 5.86 | +17.0% |
| 1986 | 7.59 | +29.5% |
| 1987 | 7.49 | -1.3% |
| 1988 | 10.7 | +42.9% |
| 1989 | 9.08 | -15.1% |
| 1990 | 8.94 | -1.5% |
| 1991 | 7.16 | -19.9% |
| 1992 | 6.33 | -11.6% |
| 1993 | 7.99 | +26.2% |
| 1994 | 11.19 | +40.1% |
| 1995 | 11.34 | +1.3% |
| 1996 | 9.36 | -17.5% |
| 1997 | 11.34 | +21.2% |
| 1998 | 12.54 | +10.6% |
| 1999 | 10.78 | -14.0% |
| 2000 | 9.41 | -12.7% |
| 2001 | 11.5 | +22.2% |
| 2002 | 11.31 | -1.7% |
| 2003 | 13.05 | +15.4% |
| 2004 | 9.7 | -25.7% |
| 2005 | 12.76 | +31.5% |
| 2006 | 13.5 | +5.8% |
| 2007 | 13.01 | -3.6% |
| 2008 | 13.76 | +5.8% |
| 2009 | 13.23 | -3.9% |
| 2010 | 13.74 | +3.9% |
| 2011 | 14.2 | +3.3% |
| 2012 | 10.38 | -26.9% |
| 2013 | 12.7 | +22.4% |
| 2014 | 12.68 | -0.2% |
| 2015 | 13.45 | +6.1% |
| 2016 | 13.47 | +0.1% |
| 2017 | 13.69 | +1.6% |
| 2018 | 15.29 | +11.7% |
| 2019 | 16.87 | +10.3% |
| 2020 | 16.02 | -5.0% |
| 2021 | 17.12 | +6.9% |
| 2022 | 16.1 | -6.0% |
| 2023 | 18.66 | +15.9% |
| 2024 | 22.54 | +20.8% |
Iran compared with similar countries
- Iran's 22.54 is above the median for upper middle income countries, which is 1.66, 13.6× the median. (48 countries reporting)
- Iran's 22.54 is below the median for Middle East, North Africa, Afghanistan & Pakistan, which is 31.34, 72% of the median. (21 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 6.04 | 3.91 | 7.53 | 10 |
| 1970s | 7.29 | 5.69 | 9.24 | 10 |
| 1980s | 7.76 | 5.01 | 10.7 | 10 |
| 1990s | 9.7 | 6.33 | 12.54 | 10 |
| 2000s | 12.12 | 9.41 | 13.76 | 10 |
| 2010s | 13.65 | 10.38 | 16.87 | 10 |
| 2020s | 18.09 | 16.02 | 22.54 | 5 |
Countries ranked near Iran
More environment data for Iran
- Historical exposure to drought — Land soil moisture anomaly -30.46 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -21.27 Percentage change (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 2.4 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate 1.9 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Building (Energy) (Mt CO2e), annual -0.0807 % change on previous year (2024)
- Methane (CH4) emissions from Building (Energy) (Mt CO2e), per unit of 0 Mt CO2e per US$ of GDP (2024)
Frequently asked questions
- What is heat index 35 in Iran?
- Heat index 35 in Iran was 22.54 in 2024, according to World Bank, Climate Change Knowledge Portal. https://climateknowledgeportal.worldbank.org.
- What is the highest heat index 35 recorded in Iran?
- The highest recorded value was 22.54 in 2024.
- What is the lowest heat index 35 recorded in Iran?
- The lowest recorded value was 3.91 in 1968.
- How does Iran rank for heat index 35?
- Iran ranks 34th out of 166 countries with data for 2024.
- Is heat index 35 rising or falling in Iran?
- Over the last ten years it is up 77.8%. The long-run trend across the full record is rising.
- Where does this Iran data come from?
- The figures come from World Bank, Climate Change Knowledge Portal. https://climateknowledgeportal.worldbank.org, published as part of Heat Index 35. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 65 observations, free to reuse under CC BY 4.0 (World Bank Open Data).
About this data
Total count of days per year where the daily mean Heat Index rose above 35°C. A Heat Index is a measure of how hot it feels once humidity is factored in with air temperature.