Heat Index 35 in Sierra Leone
Sierra Leone: Heat Index 35 was 8.29 in 2024. ◆ Volatile
Heat Index 35 in Sierra Leone, 1966–2024
Source: World Bank, Climate Change Knowledge Portal. https://climateknowledgeportal.worldbank.org.
Analysis
The most recent figure for heat index 35 in Sierra Leone is 8.29, measured in 2024. That is the highest value across all 32 years on record.
That represents a change of up 2,081.6% on the previous year and up 82,800.0% over ten years.
Over the whole period, heat index 35 in Sierra Leone peaked at 8.29 in 2024 and was at its lowest, 0.01, in 1966.
Sierra Leone ranks 60th of 166 countries on this measure, in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Heat Index 35 in Sierra Leone, year by year
| Year | Value | Change |
|---|---|---|
| 1966 | 0.01 | — |
| 1969 | 0.11 | +1000.0% |
| 1973 | 0.14 | +27.3% |
| 1979 | 0.01 | -92.9% |
| 1981 | 0.02 | +100.0% |
| 1983 | 0.12 | +500.0% |
| 1987 | 0.03 | -75.0% |
| 1988 | 0.12 | +300.0% |
| 1995 | 0.01 | -91.7% |
| 1996 | 0.05 | +400.0% |
| 1998 | 0.54 | +980.0% |
| 2000 | 0.04 | -92.6% |
| 2001 | 0.02 | -50.0% |
| 2002 | 0.03 | +50.0% |
| 2003 | 0.01 | -66.7% |
| 2004 | 0.15 | +1400.0% |
| 2005 | 0.12 | -20.0% |
| 2006 | 0.03 | -75.0% |
| 2007 | 0.17 | +466.7% |
| 2008 | 0.01 | -94.1% |
| 2010 | 0.4 | +3900.0% |
| 2011 | 0.02 | -95.0% |
| 2014 | 0.01 | -50.0% |
| 2015 | 0.02 | +100.0% |
| 2016 | 0.6 | +2900.0% |
| 2017 | 1.11 | +85.0% |
| 2019 | 0.19 | -82.9% |
| 2020 | 3.81 | +1905.3% |
| 2021 | 0.24 | -93.7% |
| 2022 | 0.32 | +33.3% |
| 2023 | 0.38 | +18.8% |
| 2024 | 8.29 | +2081.6% |
Sierra Leone compared with similar countries
- Sierra Leone's 8.29 is above the median for low income countries, which is 7.98, 1.0× the median. (24 countries reporting)
- Sierra Leone's 8.29 is above the median for Sub-Saharan Africa, which is 7.48, 1.1× the median. (42 countries reporting)
Biggest year-on-year movements
Years where Heat Index 35 in Sierra Leone 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 |
|---|---|---|---|
| 2010 | +3900.0% | 0.01 | 0.4 |
| 2016 | +2900.0% | 0.02 | 0.6 |
| 2024 | +2081.6% | 0.38 | 8.29 |
| 2020 | +1905.3% | 0.19 | 3.81 |
| 2004 | +1400.0% | 0.01 | 0.15 |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0.06 | 0.01 | 0.11 | 2 |
| 1970s | 0.075 | 0.01 | 0.14 | 2 |
| 1980s | 0.0725 | 0.02 | 0.12 | 4 |
| 1990s | 0.2 | 0.01 | 0.54 | 3 |
| 2000s | 0.0644 | 0.01 | 0.17 | 9 |
| 2010s | 0.3357 | 0.01 | 1.11 | 7 |
| 2020s | 2.61 | 0.24 | 8.29 | 5 |
Countries ranked near Sierra Leone
More environment data for Sierra Leone
- Historical exposure to drought — Land soil moisture anomaly -5.4 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -5.39 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.232 °C (2025)
- Temperature change 1.28 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 1.72 % 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 1.11 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
Frequently asked questions
- What is heat index 35 in Sierra Leone?
- Heat index 35 in Sierra Leone was 8.29 in 2024, according to World Bank, Climate Change Knowledge Portal. https://climateknowledgeportal.worldbank.org.
- What is the highest heat index 35 recorded in Sierra Leone?
- The highest recorded value was 8.29 in 2024.
- What is the lowest heat index 35 recorded in Sierra Leone?
- The lowest recorded value was 0.01 in 1966.
- How does Sierra Leone rank for heat index 35?
- Sierra Leone ranks 60th out of 166 countries with data for 2024.
- Is heat index 35 rising or falling in Sierra Leone?
- Over the last ten years it is up 82,800.0%. The long-run trend across the full record is volatile.
- Where does this Sierra Leone 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 — 32 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.