Projected frequency of heavy 1-day precipitation event that occurred once in 10 years on average in a climate without human influence. Forecast changes are shown at global warming levels of 1°°ä, 1.5°°ä, 2°°ä, and 4°°ä and are relative to 1850-1900.
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Future changes in frequency of decadal heavy precipitation by temperature increase
Extreme weather events, such as flooding, are likely to become more frequent and more intense within the next few years. The risk of a heavy rainfall event, currently expected to occur once every 10 years, will be nearly 2.7 times more likely to occur at global warming level of 4.0°C.
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UNEP, & World Meteorological Organization, & IPCC. (August 9, 2021). Projected frequency of decadal heavy precipitation events worldwide by future global warming levels [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 20, 2026, from /statistics/1257477/projected-heavy-precipitation-over-land/
UNEP, und World Meteorological Organization, und IPCC. "Projected frequency of decadal heavy precipitation events worldwide by future global warming levels." Chart. August 9, 2021. ÌÇÐÄÆƽâ°æ. Accessed July 20, 2026. /statistics/1257477/projected-heavy-precipitation-over-land/
UNEP, World Meteorological Organization, IPCC. (2021). Projected frequency of decadal heavy precipitation events worldwide by future global warming levels. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 20, 2026. /statistics/1257477/projected-heavy-precipitation-over-land/
UNEP, and World Meteorological Organization, and IPCC. "Projected Frequency of Decadal Heavy Precipitation Events Worldwide by Future Global Warming Levels." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 9 Aug 2021, /statistics/1257477/projected-heavy-precipitation-over-land/
UNEP & World Meteorological Organization & IPCC, Projected frequency of decadal heavy precipitation events worldwide by future global warming levels ÌÇÐÄÆƽâ°æ, /statistics/1257477/projected-heavy-precipitation-over-land/ (last visited July 20, 2026)
Projected frequency of decadal heavy precipitation events worldwide by future global warming levels [Graph], UNEP, & World Meteorological Organization, & IPCC, August 9, 2021. [Online]. Available: /statistics/1257477/projected-heavy-precipitation-over-land/
