Exposure to extreme precipitation — Annual precipitation change in Helsinki-Uusimaa
Helsinki-Uusimaa: Exposure to extreme precipitation — Annual precipitation change was 133.62 Millimetres per year in 2023. ◆ Volatile
Exposure to extreme precipitation — Annual precipitation change in Helsinki-Uusimaa, 1979–2023
Source: Organisation for Economic Co-operation and Development. Measured in Millimetres per year.
Analysis
The most recent figure for exposure to extreme precipitation — annual precipitation change in Helsinki-Uusimaa is 133.62 Millimetres per year, measured in 2023.
That represents a change of up 536.0% on the previous year and up 287.6% over ten years.
Over the whole period, exposure to extreme precipitation — annual precipitation change in Helsinki-Uusimaa peaked at 234.43 Millimetres per year in 1981 and was at its lowest, -182.89 Millimetres per year, in 2002.
Helsinki-Uusimaa ranks 153rd of 708 regions on this measure, in the top quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Exposure to extreme precipitation — Annual precipitation change in Helsinki-Uusimaa, year by year
| Year | Millimetres per year | Change |
|---|---|---|
| 1979 | 91.56 Millimetres per year | — |
| 1980 | -2.43 Millimetres per year | -102.6% |
| 1981 | 234.43 Millimetres per year | -9766.3% |
| 1982 | -50.63 Millimetres per year | -121.6% |
| 1983 | 4.05 Millimetres per year | -108.0% |
| 1984 | 104.22 Millimetres per year | +2474.5% |
| 1985 | 28.01 Millimetres per year | -73.1% |
| 1986 | 55.81 Millimetres per year | +99.3% |
| 1987 | -8.67 Millimetres per year | -115.5% |
| 1988 | 67.79 Millimetres per year | -882.1% |
| 1989 | 19.49 Millimetres per year | -71.2% |
| 1990 | 62.11 Millimetres per year | +218.6% |
| 1991 | -2.8 Millimetres per year | -104.5% |
| 1992 | -17.88 Millimetres per year | +538.7% |
| 1993 | -88.25 Millimetres per year | +393.6% |
| 1994 | -22.13 Millimetres per year | -74.9% |
| 1995 | -28.78 Millimetres per year | +30.0% |
| 1996 | -48.27 Millimetres per year | +67.7% |
| 1997 | -119.58 Millimetres per year | +147.8% |
| 1998 | 97.85 Millimetres per year | -181.8% |
| 1999 | -46.38 Millimetres per year | -147.4% |
| 2000 | 13.42 Millimetres per year | -128.9% |
| 2001 | 7.95 Millimetres per year | -40.8% |
| 2002 | -182.89 Millimetres per year | -2399.8% |
| 2003 | -112.93 Millimetres per year | -38.3% |
| 2004 | 97.95 Millimetres per year | -186.7% |
| 2005 | -31.54 Millimetres per year | -132.2% |
| 2006 | -103.16 Millimetres per year | +227.1% |
| 2007 | 50.02 Millimetres per year | -148.5% |
| 2008 | 161.06 Millimetres per year | +222.0% |
| 2009 | -85.84 Millimetres per year | -153.3% |
| 2010 | -54.45 Millimetres per year | -36.6% |
| 2011 | 45.82 Millimetres per year | -184.2% |
| 2012 | 218.57 Millimetres per year | +377.0% |
| 2013 | -71.22 Millimetres per year | -132.6% |
| 2014 | -28.82 Millimetres per year | -59.5% |
| 2015 | -14.69 Millimetres per year | -49.0% |
| 2016 | 6.12 Millimetres per year | -141.7% |
| 2017 | 122.12 Millimetres per year | +1896.0% |
| 2018 | -103.95 Millimetres per year | -185.1% |
| 2019 | 74.19 Millimetres per year | -171.4% |
| 2020 | 115.48 Millimetres per year | +55.7% |
| 2021 | 24.71 Millimetres per year | -78.6% |
| 2022 | -30.65 Millimetres per year | -224.0% |
| 2023 | 133.62 Millimetres per year | -536.0% |
Biggest year-on-year movements
Years where Exposure to extreme precipitation — Annual precipitation change in Helsinki-Uusimaa 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 |
|---|---|---|---|
| 1981 | +9766.3% | -2.43 Millimetres per year | 234.43 Millimetres per year |
| 1984 | +2474.5% | 4.05 Millimetres per year | 104.22 Millimetres per year |
| 2002 | -2399.8% | 7.95 Millimetres per year | -182.89 Millimetres per year |
| 2017 | +1896.0% | 6.12 Millimetres per year | 122.12 Millimetres per year |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 91.56 Millimetres per year | 91.56 Millimetres per year | 91.56 Millimetres per year | 1 |
| 1980s | 45.21 Millimetres per year | -50.63 Millimetres per year | 234.43 Millimetres per year | 10 |
| 1990s | -21.41 Millimetres per year | -119.58 Millimetres per year | 97.85 Millimetres per year | 10 |
| 2000s | -18.6 Millimetres per year | -182.89 Millimetres per year | 161.06 Millimetres per year | 10 |
| 2010s | 19.37 Millimetres per year | -103.95 Millimetres per year | 218.57 Millimetres per year | 10 |
| 2020s | 60.79 Millimetres per year | -30.65 Millimetres per year | 133.62 Millimetres per year | 4 |
Countries ranked near Helsinki-Uusimaa
- 150 Liberia -51.27 Millimetres per year compare
- 151 Faroe Islands -55.49 Millimetres per year compare
- 152 Portugal -60.11 Millimetres per year compare
- 153 Puerto Rico -61.4 Millimetres per year compare
- 154 Mali -61.95 Millimetres per year compare
- 155 Congo -65.11 Millimetres per year compare
- 156 Uzbekistan -65.38 Millimetres per year compare
More reference data data for Helsinki-Uusimaa
- Cooling and heating degree days by NUTS 2 regions - annual data -4.91 % change on previous year (2025)
- Cooling and heating degree days by NUTS 2 regions - monthly data -10.05 % change on previous year (2025)
- Exposure to extreme temperature — Annual temperature change 1.15 Degrees celsius (2023)
- Assumptions for probability of dying by age, sex, type of projection 0.0002 Number (2100)
- Cooling and heating degree days by NUTS 2 regions - annual data 3,832 Number (2025)
- Cooling and heating degree days by NUTS 2 regions - monthly data 501.2 Number (2025)
- R&D personnel by sector of performance and region — R&D Personnel 41,523 Persons (2023)
- Victims in road accidents by NUTS 2 region 29 Number (2024)
- Stock of vehicles by category and NUTS 2 region 1.17 million Number (2024)
- Physicians by NUTS 2 region 6,747 Number (2024)
Frequently asked questions
- What is exposure to extreme precipitation — annual precipitation change in Helsinki-Uusimaa?
- Exposure to extreme precipitation — annual precipitation change in Helsinki-Uusimaa was 133.62 Millimetres per year in 2023, according to Organisation for Economic Co-operation and Development.
- What is the highest exposure to extreme precipitation — annual precipitation change recorded in Helsinki-Uusimaa?
- The highest recorded value was 234.43 Millimetres per year in 1981.
- What is the lowest exposure to extreme precipitation — annual precipitation change recorded in Helsinki-Uusimaa?
- The lowest recorded value was -182.89 Millimetres per year in 2002.
- How does Helsinki-Uusimaa rank for exposure to extreme precipitation — annual precipitation change?
- Helsinki-Uusimaa ranks 153rd out of 708 regions with data for 2023.
- Is exposure to extreme precipitation — annual precipitation change rising or falling in Helsinki-Uusimaa?
- Over the last ten years it is up 287.6%. The long-run trend across the full record is volatile.
- Where does this Helsinki-Uusimaa data come from?
- The figures come from Organisation for Economic Co-operation and Development, published as part of Exposure to extreme precipitation — Annual precipitation change. Statizoid updates them automatically from the source API.
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About this data
The dataset provides a global assessment of changes in average precipitation by providing the precipitation anomaly and provides a global assessment of extreme precipitation through the use of two precipitation indices, i.e. very heavy precipitation days and frequency of extreme precipitation events. Exposure indicators to extreme precipitation have been prepared jointly by the Organisation for Economic Co-operation and Development (OECD) and the International Energy Agency (IEA). Please see the working paper for a more complete description of the methods. The datasets span the period 1979-2022, depending on data availability and are the result of the use of a variety of geospatial data sources as referenced in the Working Paper. The dataset has a global coverage on a national level; on the sub-national TL2 level (i.e. large subnational regions) results are reported for all OECD countries as well as for Argentina, Brazil, China, India, Indonesia and South Africa. A number of aggregates are included: Euro area, European Union, Advanced economies, Emerging market economies, G7, G20, OECD, OECD Europe, OECD Asia Oceania, OECD Americas and the LAC region. Data source(s): Copernicus Climate Data Store precipitation data (ERA5) and Copernicus Climate Change Initiative land cover data. Contact: ENV.Stat@oecd.org Database documentation