Hong Kong, China vs Oslo and Viken: Exposure to extreme precipitation — Annual precipitation change

Hong Kong, China
184.35 Millimetres per year
in 2023
Oslo and Viken
251.57 Millimetres per year
in 2023
Hong Kong, China rank
37th
Oslo and Viken rank
45th

Exposure to extreme precipitation — Annual precipitation change over time

  • Hong Kong, China
  • Oslo and Viken
-500-2500250500750197920012023

How they compare

Oslo and Viken currently reports 251.57 Millimetres per year against 184.35 Millimetres per year in Hong Kong, China, a difference of 67.22 Millimetres per year.

That makes Oslo and Viken's figure about 1.4 times Hong Kong, China's.

The two have swapped places 25 times across 45 shared years of data; in 1979 it was Hong Kong, China ahead.

Hong Kong, China ranks 37th and Oslo and Viken ranks 45th of 222 countries.

Across the 6 decades both report, Hong Kong, China averaged higher in 3 and Oslo and Viken in 3.

Head to head by decade

Decade Hong Kong, China Oslo and Viken Difference Ahead
1970s 62 Millimetres per year 52.44 Millimetres per year 9.57 Millimetres per year Hong Kong, China
1980s 40.03 Millimetres per year 1.63 Millimetres per year 38.4 Millimetres per year Hong Kong, China
1990s 63.02 Millimetres per year -51.84 Millimetres per year 114.86 Millimetres per year Hong Kong, China
2000s -134.37 Millimetres per year 54.81 Millimetres per year 189.18 Millimetres per year Oslo and Viken
2010s 2.64 Millimetres per year 89.84 Millimetres per year 87.2 Millimetres per year Oslo and Viken
2020s -9.5 Millimetres per year 87.5 Millimetres per year 97 Millimetres per year Oslo and Viken

Averages of every year both report within each decade.

Frequently asked questions

Which has higher exposure to extreme precipitation — annual precipitation change, Hong Kong, China or Oslo and Viken?
Oslo and Viken, at 251.57 Millimetres per year against 184.35 Millimetres per year in Hong Kong, China as of 2023.
What is the difference in exposure to extreme precipitation — annual precipitation change between Hong Kong, China and Oslo and Viken?
67.22 Millimetres per year, with Oslo and Viken ahead.
How many years of comparable data are there for Hong Kong, China and Oslo and Viken?
45 years are reported by both, from 1979 to 2023.
How do Hong Kong, China and Oslo and Viken rank globally for exposure to extreme precipitation — annual precipitation change?
Hong Kong, China ranks 37th and Oslo and Viken ranks 45th of 222 countries.
Where does this data come from?
Organisation for Economic Co-operation and Development, published as Exposure to extreme precipitation — Annual precipitation change. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Hong Kong, China vs Oslo and Viken: Exposure to extreme precipitation — Annual precipitation change. Statizoid, drawing on Organisation for Economic Co-operation and Development. Retrieved 04 September 2026, from https://reference.statizoid.com/compare/exposure-to-extreme-precipitation-annual-precipitation-change/hong-kong-sar-china/oslo-and-viken/

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About this data

Indicator
Exposure to extreme precipitation — Annual precipitation change
Unit
Millimetres per year
Source
Organisation for Economic Co-operation and Development
Licence
OECD Terms and Conditions (attribution required)
Coverage
979 places, 44,055 data points, 1979–2023
Last refreshed

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