Extreme daily precipitation has risen about 7% globally since 1980, and wet-region rainfall has increased by 1% to 3% per decade since 1950. Storms are delivering heavier downpours as temperatures rise, with rain rates linked to tropical cyclones growing 7% to 10% per degree of warming. Hurricane Harvey’s 1,539 mm in four days and Dubai’s 254 mm in 24 hours show how rapidly rain totals can overwhelm drainage, agriculture, and city infrastructure.
Key Takeaways
- The 2021 Germany floods were caused by 150-200 mm rain in 24 hours in Ahr Valley
- Hurricane Harvey dumped 1,539 mm rain on Houston in 2017 over 4 days
- 2022 Pakistan floods from 500-600 mm rain in Sindh province over a week
- The global average annual precipitation is approximately 990 mm (39 inches), with rain contributing the majority in most regions
- In 2023, the world received an estimated 505,000 cubic kilometers of precipitation, predominantly rain
- Earth's water cycle moves about 577,000 km³ of water annually through precipitation, with rain being 77% of it over land
- Flood damages from rain events cost US $150 billion annually average 1980-2020
- Global agricultural losses from excess rain: $10-20 billion yearly
- Rain-induced landslides kill 5,000 people globally per year average
- Southeast Asia monsoon rains average 80% of annual total in monsoon months
- Amazon rainforest receives 2,000-3,000 mm rain yearly, 50-60% from local recycling
- Sahel region of Africa gets 300-1,000 mm bimodal rain annually
- Global precipitation has increased by 1-3% per decade since 1950 in wet regions
- Since 1980, extreme daily precipitation has risen 7% globally
- US annual precipitation increased 4% from 1901-2020
From Germany to Dubai, extreme downpours show rain intensity is rising and flooding impacts are growing.
Related reading
01 · Category
Extreme Rainfall Events25 stats
01
The 2021 Germany floods were caused by 150-200 mm rain in 24 hours in Ahr Valley
02
Hurricane Harvey dumped 1,539 mm rain on Houston in 2017 over 4 days
03
2022 Pakistan floods from 500-600 mm rain in Sindh province over a week
04
Iowa 2023 derecho storm brought 200 mm rain in hours
05
2021 Henan, China, floods with 720 mm rain in 24 hours in Zhengzhou
06
Cyclone Idai 2019 dropped 596 mm rain in 24 hours in Zimbabwe
07
2023 Libya floods from Storm Daniel with 414 mm rain in 24 hours
08
2010 Pakistan floods: 300 mm rain in 36 hours in Khyber Pakhtunkhwa
09
2024 Dubai floods: 254 mm rain in 24 hours, most intense in UAE history
10
2019 Mozambique Cyclone Kenneth: 550 mm rain in 48 hours
11
2023 California atmospheric river: 300 mm rain in Santa Cruz Mountains in 5 days
12
2013 UK floods: 90 mm rain in Boscastle in 5 hours (flash flood record context)
13
2022 Japan rainfall: 880 mm in 72 hours in Yamagata
14
2019 Indian floods in Kerala: 2,347 mm in 15 days
15
2021 Vancouver, Canada: 200 mm rain in 48 hours
16
2015 South Carolina floods: 480 mm in 3 days
17
2020 Assam, India: 1,000 mm rain in 10 days causing Brahmaputra floods
18
2018 Japan western Japan rains: 552 mm in 24 hours in Shobara
19
2023 Emilia-Romagna, Italy: 200 mm in 36 hours
20
2014 UK Christmas floods: 100 mm in 24 hours in Cumbria
21
2022 Eastern Australia floods: 800 mm in 4 days in Lismore
22
2019 France floods: 220 mm in 24 hours in Aude
23
2021 Belgium floods: 150 mm in 24 hours in Eupen
24
2016 Louisiana floods: 620 mm in 3 days
25
2023 New Zealand Auckland: 300 mm in 24 hours
Interpretation
Extreme Rainfall Events Interpretation
Comparing these deluges reveals our planet's unsettling new talent for choreographing its water from devastating solos, like Zhengzhou’s 720 mm in a day, to sprawling week-long ensemble floods, proving that whether it arrives in a furious hour or a relentless week, the result is a catastrophic hydrological performance for which our infrastructure remains a woefully under-rehearsed understudy.
02 · Category
Global Rainfall Averages29 stats
01
The global average annual precipitation is approximately 990 mm (39 inches), with rain contributing the majority in most regions
02
In 2023, the world received an estimated 505,000 cubic kilometers of precipitation, predominantly rain
03
Earth's water cycle moves about 577,000 km³ of water annually through precipitation, with rain being 77% of it over land
04
Tropical regions receive over 2,000 mm of rain annually on average
05
Deserts like the Atacama receive less than 1 mm of rain per year on average
06
The average annual rainfall in Europe is 700 mm, varying from 500 mm in the south to 1,000 mm in the north
07
Asia's average annual precipitation is 1,200 mm, driven by monsoons
08
North America's average yearly rain is 715 mm
09
South America averages 1,600 mm annually, with Amazon basin at 2,300 mm
10
Africa's average precipitation is 670 mm per year
11
Australia receives 465 mm of rain annually on average
12
Antarctica's coastal areas get 200-500 mm rain equivalent
13
The Pacific Ocean basin sees 1,800 mm average annual rainfall
14
Atlantic Ocean averages 1,400 mm precipitation yearly, mostly rain
15
Indian Ocean rainfall averages 2,000 mm per year
16
Arctic regions average 250 mm precipitation, largely as rain in summer
17
Mount Waialeale, Hawaii, records 11,684 mm annual rain average
18
Cherrapunji, India, averages 11,777 mm rain yearly
19
Mawsynram, India, has 11,871 mm average annual rainfall
20
Debundscha, Cameroon, receives 10,000 mm rain per year on average
21
London, UK, averages 601 mm rain annually
22
New York City averages 1,168 mm precipitation yearly
23
Tokyo averages 1,530 mm rain per year
24
Sydney, Australia, gets 1,213 mm annual rainfall
25
Mumbai, India, averages 2,386 mm rain yearly
26
Seattle, USA, receives 952 mm rain annually
27
Buenos Aires averages 1,217 mm precipitation per year
28
Nairobi, Kenya, gets 970 mm rain yearly
29
Beijing averages 567 mm annual rainfall
Interpretation
Global Rainfall Averages Interpretation
Mother Nature runs a wildly uneven global laundromat, annually dumping a staggering half-million cubic kilometers of water, where some towns drown in a year's worth of what a desert wouldn't see in a millennium, proving that when it comes to rain, Earth's motto is "go big or go bone-dry."
03 · Category
Impacts of Rainfall21 stats
01
Flood damages from rain events cost US $150 billion annually average 1980-2020
02
Global agricultural losses from excess rain: $10-20 billion yearly
03
Rain-induced landslides kill 5,000 people globally per year average
04
US crop insurance payouts for rain/flood: $5 billion in 2019 alone
05
India monsoon failure rains cause $3 billion GDP loss yearly average
06
UK annual flood damage from rain: £1.2 billion
07
Brazil coffee production down 20% in wet years due to rain
08
Global hydropower generation boosted 10% by above-average rains in wet years
09
Rain erosion removes 24 billion tons topsoil yearly worldwide
10
Malaria cases rise 20-30% after heavy rains in sub-Saharan Africa
11
US road repairs from rain damage: $15 billion annually
12
Australia wheat yield variability from rain: 50% of annual fluctuation
13
China rice flooding losses: 5-10 million tons yearly
14
Europe wine production down 15% in rainy harvest years
15
Global reinsurance payouts for rain floods: $40 billion/year average
16
Bangladesh cyclone rain floods displace 1 million yearly average
17
US Midwest corn detasseling delayed by rain costs $500 million/year
18
Rain contributes to 40% of aviation delays globally
19
Vietnam Mekong Delta salinization worsened by irregular rains, affecting 1.8 million ha
20
Global urban flooding from rain affects 1.8 billion people by 2030 projection
21
Rain-fed agriculture covers 80% of cropland in developing countries
Interpretation
Impacts of Rainfall Interpretation
Rain may be celebrated in song and story, but its ledger tells a more sobering tale, exacting an immense global toll on economies, food supplies, and human life even as it occasionally bestows a hydropower bonus or a bumper crop.
More related reading
04 · Category
Rainfall Distribution by Region20 stats
01
Southeast Asia monsoon rains average 80% of annual total in monsoon months
02
Amazon rainforest receives 2,000-3,000 mm rain yearly, 50-60% from local recycling
03
Sahel region of Africa gets 300-1,000 mm bimodal rain annually
04
Mediterranean basin has 500-1,000 mm winter-dominant rain
05
US Great Plains Konza Prairie: 835 mm summer-max rain
06
Patagonia, Argentina: 3,000-4,000 mm westerly rain in Andes
07
Indonesian Maritime Continent: 2,500-3,500 mm equatorial rain year-round
08
Tibetan Plateau: 300-1,000 mm summer monsoon rain
09
Canadian Prairies: 400-500 mm mostly summer convective rain
10
West African Gulf of Guinea coast: 1,500-4,000 mm two-peak rain season
11
Central European plains: 600-800 mm even distribution with summer peak
12
Australian monsoon north: 1,500-2,500 mm Nov-Apr wet season
13
East African Great Lakes: 1,000-2,000 mm March-May & Oct-Dec rains
14
Southern Brazil highlands: 1,500-2,000 mm summer-autumn rain
15
Russian Far East: 600-1,000 mm summer monsoon influence
16
Madagascar east coast: 2,000-3,500 mm Nov-Mar cyclone season
17
US Pacific Northwest: 1,000-2,500 mm winter frontal rain
18
Himalayan foothills India: 2,000-5,000 mm summer monsoon
19
South African Cape: 500-1,000 mm winter rain
20
Mexican Yucatan Peninsula: 1,000-1,500 mm May-Oct hurricane season
Interpretation
Rainfall Distribution by Region Interpretation
It seems the planet has organized a vast, chaotic water-sharing scheme where everyone gets their preferred delivery method—from Amazon's self-sustaining mist to the Sahel's two-part special and the Pacific Northwest's winter-only deluge package—yet no one can agree on the tipping policy.
05 · Category
Trends and Changes Over Time22 stats
01
Global precipitation has increased by 1-3% per decade since 1950 in wet regions
02
Since 1980, extreme daily precipitation has risen 7% globally
03
US annual precipitation increased 4% from 1901-2020
04
Sahel rainfall recovered 20% from 1980s drought to 2020s wetter phase
05
East Asia monsoon rain intensity up 15% since 1950s
06
Arctic precipitation increased 3% per decade 1958-2019
07
Mediterranean annual rain declined 10-20% since 1960s
08
India summer monsoon total rainfall stable but extremes up 10% since 1950
09
Australia southeast rainfall down 20% since 1990s
10
Southwest US precipitation decreased 5-10% since 1900
11
Europe wet days decreased but heavy rain days up 10% 1950-2018
12
South America Andes precipitation up 10-20% since 1970s
13
Central Asia annual rain increased 2 mm/year 1961-2010
14
West Africa rainfall variability up 30% since 1970
15
Greenland coastal precipitation up 10% per decade
16
Southeast US rain increased 10-15% since 1970
17
China Yangtze basin rain up 15% 1961-2014
18
Southern Africa summer rain down 10% since 1970s
19
Japan annual precipitation up 10% since 1901
20
Global land rain extremes (Rx1day) increased 1.4% per decade 1951-2014
21
Hurricane-related rain events in US Atlantic coast up 30% since 1980
22
Tropical cyclone rain rates increased 7-10% per degree warming
Interpretation
Trends and Changes Over Time Interpretation
The rain isn't just changing its mind—it's having mood swings, with a troubling pattern of watering the already damp while turning a drier shoulder to the thirsty.
Reference
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
APA
Elena Vasquez. (2026, February 13). Rain Statistics. Gitnux. https://gitnux.org/rain-statistics
MLA
Elena Vasquez. "Rain Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/rain-statistics.
Chicago
Elena Vasquez. 2026. "Rain Statistics." Gitnux. https://gitnux.org/rain-statistics.
Sources & references
78 datasets cited across this report · attribution is report-level