Heating Degree Days, gaps filled in Iran
Iran: Heating Degree Days, gaps filled was 2,621 in 2024. ▼ Falling
Heating Degree Days, gaps filled in Iran, 1960–2024
Source: Statizoid (derived).
Analysis
In 2024, heating degree days, gaps filled in Iran stood at 2,621.
That represents a change of up 6.2% on the previous year and down 14.5% over ten years.
Over the whole period, heating degree days, gaps filled in Iran peaked at 4,070 in 1964 and was at its lowest, 2,417, in 2010.
Iran ranks 64th of 189 countries on this measure, in the middle of the range.
The long-run direction has been consistently falling across the 65 years of available data.
Heating Degree Days, gaps filled in Iran, year by year
| Year | Value | Change |
|---|---|---|
| 1960 | 3,332 | — |
| 1961 | 3,556 | +6.7% |
| 1962 | 3,223 | -9.4% |
| 1963 | 3,103 | -3.7% |
| 1964 | 4,070 | +31.1% |
| 1965 | 3,351 | -17.7% |
| 1966 | 2,921 | -12.8% |
| 1967 | 3,575 | +22.4% |
| 1968 | 3,376 | -5.6% |
| 1969 | 3,387 | +0.3% |
| 1970 | 3,023 | -10.8% |
| 1971 | 3,191 | +5.6% |
| 1972 | 4,049 | +26.9% |
| 1973 | 3,388 | -16.3% |
| 1974 | 3,736 | +10.3% |
| 1975 | 3,628 | -2.9% |
| 1976 | 3,647 | +0.5% |
| 1977 | 3,221 | -11.7% |
| 1978 | 3,105 | -3.6% |
| 1979 | 3,284 | +5.8% |
| 1980 | 3,267 | -0.5% |
| 1981 | 3,195 | -2.2% |
| 1982 | 4,061 | +27.1% |
| 1983 | 3,765 | -7.3% |
| 1984 | 3,750 | -0.4% |
| 1985 | 3,382 | -9.8% |
| 1986 | 3,778 | +11.7% |
| 1987 | 3,232 | -14.4% |
| 1988 | 3,293 | +1.9% |
| 1989 | 3,624 | +10.0% |
| 1990 | 3,302 | -8.9% |
| 1991 | 3,244 | -1.7% |
| 1992 | 3,754 | +15.7% |
| 1993 | 3,373 | -10.1% |
| 1994 | 3,071 | -9.0% |
| 1995 | 3,052 | -0.6% |
| 1996 | 3,248 | +6.4% |
| 1997 | 3,237 | -0.3% |
| 1998 | 2,854 | -11.8% |
| 1999 | 2,855 | +0.0% |
| 2000 | 3,040 | +6.5% |
| 2001 | 2,641 | -13.1% |
| 2002 | 2,882 | +9.1% |
| 2003 | 2,946 | +2.2% |
| 2004 | 2,779 | -5.7% |
| 2005 | 2,985 | +7.4% |
| 2006 | 2,960 | -0.9% |
| 2007 | 3,053 | +3.1% |
| 2008 | 3,199 | +4.8% |
| 2009 | 2,849 | -10.9% |
| 2010 | 2,417 | -15.2% |
| 2011 | 3,130 | +29.5% |
| 2012 | 3,072 | -1.8% |
| 2013 | 2,779 | -9.5% |
| 2014 | 3,067 | +10.4% |
| 2015 | 2,753 | -10.2% |
| 2016 | 2,627 | -4.6% |
| 2017 | 2,768 | +5.4% |
| 2018 | 2,508 | -9.4% |
| 2019 | 2,871 | +14.5% |
| 2020 | 2,996 | +4.3% |
| 2021 | 2,523 | -15.8% |
| 2022 | 2,518 | -0.2% |
| 2023 | 2,469 | -2.0% |
| 2024 | 2,621 | +6.2% |
Iran compared with similar countries
- Iran's 2,621 is above the median for upper middle income countries, which is 201.25, 13.0× the median. (57 countries reporting)
- Iran's 2,621 is above the median for Middle East, North Africa, Afghanistan & Pakistan, which is 816.02, 3.2× the median. (22 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 3,389 | 2,921 | 4,070 | 10 |
| 1970s | 3,427 | 3,023 | 4,049 | 10 |
| 1980s | 3,535 | 3,195 | 4,061 | 10 |
| 1990s | 3,199 | 2,854 | 3,754 | 10 |
| 2000s | 2,933 | 2,641 | 3,199 | 10 |
| 2010s | 2,799 | 2,417 | 3,130 | 10 |
| 2020s | 2,625 | 2,469 | 2,996 | 5 |
Countries ranked near Iran
More environment data for Iran
- Grazing land use over the long-term, annual growth rate 0 % change on previous year (2025)
- Grazing land use over the long-term, per unit of GDP 0.0001 hectares per US$ of GDP (2025)
- Grazing land use over the long-term, per capita 0.319 hectares per person (2025)
- 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)
- Grazing land use over the long-term, per square kilometre 18.17 hectares per square kilometre (2024)
- 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)
Frequently asked questions
- What is heating degree days, gaps filled in Iran?
- Heating degree days, gaps filled in Iran was 2,621 in 2024, according to Statizoid (derived).
- What is the highest heating degree days, gaps filled recorded in Iran?
- The highest recorded value was 4,070 in 1964.
- What is the lowest heating degree days, gaps filled recorded in Iran?
- The lowest recorded value was 2,417 in 2010.
- How does Iran rank for heating degree days, gaps filled?
- Iran ranks 64th out of 189 countries with data for 2024.
- Is heating degree days, gaps filled rising or falling in Iran?
- Over the last ten years it is down 14.5%. The long-run trend across the full record is falling.
- Where does this Iran data come from?
- The figures come from Statizoid (derived), published as part of Heating Degree Days, gaps filled. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 65 observations, free to reuse under Derived by Statizoid from the sources named on the page.
How this figure is calculated
Heating Degree Days with 237 missing years estimated by linear interpolation between the nearest real observations. Only gaps of 4 years or fewer are filled, and never beyond the first or last actual measurement — these are filled holes, not forecasts.
Computed from
- Heating Degree Days World Bank, Climate Change Knowledge Portal. https://climateknowledgeportal.worldbank.org
Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.
About this data
Heating Degree Days with 237 missing years estimated by linear interpolation between the nearest real observations. Only gaps of 4 years or fewer are filled, and never beyond the first or last actual measurement — these are filled holes, not forecasts.