Heavy Rain and Dry Spells by Decade
Annual rain against the 1961-1990 mean, heavy rain days, the wettest five days share and dry spells by decade worldwide, with the trend and station counts. Built from NOAA GHCN-Daily station records by this site; every chart states its stations and its period.
Data as of . Last revised (2026-10-17).
Key Facts
- The trend in annual rain is +1.0 percent per decade (95 percent interval +0.6 to +1.5), fitted to 74 years from 1951 to 2024.
- Worldwide, the share of a year's rain that fell in its wettest five days fell from 13.1 to 12.9 percent between the 1960s and the 2020s at 4,430 stations.
- Worldwide, the mean number of days with 25 mm (1.0 in) or more of rain per year rose from 6.01 to 6.87 between the 1960s and the 2020s.
- Worldwide, the mean number of days with 50 mm (2.0 in) or more of rain per year rose from 1.20 to 1.44 between the 1960s and the 2020s.
- Worldwide, the mean number of days with 100 mm (3.9 in) or more of rain per year rose from 0.13 to 0.16 between the 1960s and the 2020s.
- Worldwide, the mean longest dry spell of the year, in days with less than 1 mm of rain in a row, fell from 35.2 to 34.2 days between the 1960s and the 2020s, over the same 4,430 stations in every decade.
- The same measures are on this page for 4 continents and 24 countries.
How to Read This Page
The first chart shows annual rain as a percent difference from each station's own 1961-1990 mean. Stations are averaged within 5 degree by 5 degree grid cells and the cells are weighted by the cosine of latitude, so a crowded region does not count more than a sparse one. Only stations with at least 50 complete years since 1951, at least 15 complete years in 1961-1990 and at least 10 in the latest 20 years are in this set. The trend is an ordinary least squares fit per decade, and its 95 percent interval allows for year to year persistence.
The other charts use fixed station sets: the same stations in every decade, with at least 6 complete years of rain data in each decade from the 1960s. The wettest five day share is the rain of the year's wettest five days divided by the year's total rain. Heavy rain days are days with 25 mm (1.0 in), 50 mm (2.0 in) or 100 mm (3.9 in) or more. A dry spell is a run of days with less than 1 mm (0.04 in) of rain, and the chart shows the mean longest one in a year. A year of rain data is complete with 329 or more days reporting.
Stations are not spread evenly: some regions have many and others few, so a continent or world figure describes the stations in the set and not every place. Every figure here describes what the station records show. It does not say why it changed.
This page has the world, 4 continents and 24 countries with data. Each scope has its own station sets, named in its charts.
Heavy Rain and Dry Spells by Decade: World
7,874 stations in the annual rain series- Worldwide, annual rain at 7,874 stations is shown as a percent difference from each station's own 1961-1990 mean, for 74 years from 1951 to 2024.
- The trend in annual rain is +1.0 percent per decade (95 percent interval +0.6 to +1.5), fitted to 74 years from 1951 to 2024.
- Worldwide, the share of a year's rain that fell in its wettest five days fell from 13.1 to 12.9 percent between the 1960s and the 2020s at 4,430 stations.
- Worldwide, the mean number of days with 25 mm (1.0 in) or more of rain per year rose from 6.01 to 6.87 between the 1960s and the 2020s.
- Worldwide, the mean number of days with 50 mm (2.0 in) or more of rain per year rose from 1.20 to 1.44 between the 1960s and the 2020s.
- Worldwide, the mean number of days with 100 mm (3.9 in) or more of rain per year rose from 0.13 to 0.16 between the 1960s and the 2020s.
- Worldwide, the mean longest dry spell of the year, in days with less than 1 mm of rain in a row, fell from 35.2 to 34.2 days between the 1960s and the 2020s, over the same 4,430 stations in every decade.
Annual rain against the 1961-1990 mean
| Year | Annual rain, percent difference from the mean |
|---|---|
| 1951 | -5.3% |
| 1952 | -5.3% |
| 1953 | -4.4% |
| 1954 | -1.5% |
| 1955 | 2.5% |
| 1956 | -1.2% |
| 1957 | -3.6% |
| 1958 | 0.3% |
| 1959 | -2.7% |
| 1960 | -0.5% |
| 1961 | -4.8% |
| 1962 | -4.3% |
| 1963 | -2.3% |
| 1964 | -2.4% |
| 1965 | -6.0% |
| 1966 | 0.5% |
| 1967 | 0.1% |
| 1968 | 1.2% |
| 1969 | -2.3% |
| 1970 | -2.4% |
| 1971 | 1.2% |
| 1972 | -1.9% |
| 1973 | 7.8% |
| 1974 | 9.4% |
| 1975 | 3.2% |
| 1976 | -3.8% |
| 1977 | -1.2% |
| 1978 | 1.7% |
| 1979 | 3.2% |
| 1980 | -1.0% |
| 1981 | 3.3% |
| 1982 | -0.3% |
| 1983 | 3.3% |
| 1984 | 0.5% |
| 1985 | -2.6% |
| 1986 | -3.7% |
| 1987 | 0.0% |
| 1988 | -2.2% |
| 1989 | 0.9% |
| 1990 | 3.0% |
| 1991 | 1.5% |
| 1992 | 2.4% |
| 1993 | 4.2% |
| 1994 | -2.4% |
| 1995 | 4.1% |
| 1996 | 3.6% |
| 1997 | 4.4% |
| 1998 | 7.7% |
| 1999 | 3.0% |
| 2000 | 9.0% |
| 2001 | 1.7% |
| 2002 | -2.4% |
| 2003 | -0.6% |
| 2004 | 6.9% |
| 2005 | 0.8% |
| 2006 | 1.2% |
| 2007 | 1.9% |
| 2008 | 2.9% |
| 2009 | 0.7% |
| 2010 | 12.6% |
| 2011 | 5.6% |
| 2012 | 3.8% |
| 2013 | 4.7% |
| 2014 | 3.1% |
| 2015 | 2.8% |
| 2016 | 7.3% |
| 2017 | 5.0% |
| 2018 | 3.5% |
| 2019 | -2.3% |
| 2020 | 3.2% |
| 2021 | 6.9% |
| 2022 | 4.9% |
| 2023 | 0.9% |
| 2024 | 6.1% |
Share of the year's rain in its wettest five days
| Decade | Share of annual rain |
|---|---|
| 1960s | 13.1% |
| 1970s | 12.8% |
| 1980s | 12.6% |
| 1990s | 12.6% |
| 2000s | 13.0% |
| 2010s | 13.0% |
| 2020s | 12.9% |
Days with 25 mm or more rain
| Decade | Mean days per year |
|---|---|
| 1960s | 6.01 |
| 1970s | 6.43 |
| 1980s | 6.28 |
| 1990s | 6.70 |
| 2000s | 6.41 |
| 2010s | 6.88 |
| 2020s | 6.87 |
Days with 50 mm or more rain
| Decade | Mean days per year |
|---|---|
| 1960s | 1.20 |
| 1970s | 1.33 |
| 1980s | 1.25 |
| 1990s | 1.37 |
| 2000s | 1.31 |
| 2010s | 1.46 |
| 2020s | 1.44 |
Days with 100 mm or more rain
| Decade | Mean days per year |
|---|---|
| 1960s | 0.13 |
| 1970s | 0.15 |
| 1980s | 0.13 |
| 1990s | 0.15 |
| 2000s | 0.14 |
| 2010s | 0.17 |
| 2020s | 0.16 |
Longest dry spell of the year
| Decade | Mean longest dry spell, days |
|---|---|
| 1960s | 35.2 days |
| 1970s | 34.5 days |
| 1980s | 34.0 days |
| 1990s | 33.5 days |
| 2000s | 34.3 days |
| 2010s | 33.1 days |
| 2020s | 34.2 days |
The annual rain series uses stations with at least 50 complete years since 1951 and a 1961-1990 baseline. The decade charts use fixed sets of stations, the same in every decade from the 1960s. A dry day has less than 1 mm (0.04 in) of rain.
All climate measures for World
Heavy Rain and Dry Spells by Decade: Asia
282 stations in the annual rain series- In Asia, annual rain at 282 stations is shown as a percent difference from each station's own 1961-1990 mean, for 67 years from 1951 to 2024.
- The trend in annual rain is +0.4 percent per decade (95 percent interval -0.4 to +1.1), fitted to 67 years from 1951 to 2024. The interval includes zero, so the series does not separate a trend from year to year variation.
Annual rain against the 1961-1990 mean
| Year | Annual rain, percent difference from the mean |
|---|---|
| 1951 | 1.7% |
| 1952 | 3.8% |
| 1953 | 12.7% |
| 1954 | 17.2% |
| 1955 | 3.6% |
| 1956 | -1.6% |
| 1957 | -2.8% |
| 1958 | 2.5% |
| 1959 | 8.5% |
| 1960 | -3.9% |
| 1961 | 0.5% |
| 1962 | -5.5% |
| 1963 | -2.5% |
| 1964 | 8.0% |
| 1965 | -3.6% |
| 1966 | -0.3% |
| 1967 | 0.6% |
| 1968 | -4.8% |
| 1969 | -2.0% |
| 1970 | -0.3% |
| 1971 | 3.2% |
| 1972 | 3.8% |
| 1973 | 6.9% |
| 1974 | 4.3% |
| 1975 | 3.3% |
| 1976 | -3.5% |
| 1977 | -1.1% |
| 1978 | -8.8% |
| 1979 | 3.6% |
| 1980 | 0.1% |
| 1981 | 6.0% |
| 1982 | -1.0% |
| 1983 | 1.2% |
| 1984 | -8.0% |
| 1985 | -0.8% |
| 1986 | -9.6% |
| 1987 | 6.2% |
| 1988 | -0.4% |
| 1989 | -2.7% |
| 1990 | 7.5% |
| 1991 | 3.5% |
| 1992 | 2.7% |
| 1993 | 9.0% |
| 1994 | 1.9% |
| 1995 | -2.0% |
| 1996 | -0.4% |
| 1997 | -6.8% |
| 1998 | 8.9% |
| 1999 | -5.2% |
| 2000 | -2.9% |
| 2001 | -5.0% |
| 2002 | 10.2% |
| 2003 | 3.1% |
| 2004 | -1.3% |
| 2005 | 1.7% |
| 2006 | -3.1% |
| 2007 | 1.9% |
| 2008 | -1.3% |
| 2009 | -3.8% |
| 2010 | 13.2% |
| 2011 | -5.4% |
| 2012 | 16.6% |
| 2013 | n/a |
| 2014 | n/a |
| 2015 | n/a |
| 2016 | n/a |
| 2017 | n/a |
| 2018 | n/a |
| 2019 | n/a |
| 2020 | 14.0% |
| 2021 | 17.6% |
| 2022 | 1.7% |
| 2023 | -6.4% |
| 2024 | 14.6% |
The annual rain series uses stations with at least 50 complete years since 1951 and a 1961-1990 baseline. The decade charts use fixed sets of stations, the same in every decade from the 1960s. A dry day has less than 1 mm (0.04 in) of rain.
Heavy Rain and Dry Spells by Decade: Europe
2,037 stations in the annual rain series- In Europe, annual rain at 2,037 stations is shown as a percent difference from each station's own 1961-1990 mean, for 74 years from 1951 to 2024.
- The trend in annual rain is +1.3 percent per decade (95 percent interval +0.9 to +1.7), fitted to 74 years from 1951 to 2024.
- In Europe, the share of a year's rain that fell in its wettest five days rose from 9.4 to 9.6 percent between the 1960s and the 2020s at 1,211 stations.
- In Europe, the mean number of days with 25 mm (1.0 in) or more of rain per year rose from 3.30 to 3.99 between the 1960s and the 2020s.
- In Europe, the mean number of days with 50 mm (2.0 in) or more of rain per year rose from 0.38 to 0.48 between the 1960s and the 2020s.
- In Europe, the mean number of days with 100 mm (3.9 in) or more of rain per year was 0.02 in both between the 1960s and the 2020s.
- In Europe, the mean longest dry spell of the year, in days with less than 1 mm of rain in a row, fell from 27.4 to 25.0 days between the 1960s and the 2020s, over the same 1,211 stations in every decade.
Annual rain against the 1961-1990 mean
| Year | Annual rain, percent difference from the mean |
|---|---|
| 1951 | -9.0% |
| 1952 | -8.8% |
| 1953 | -9.7% |
| 1954 | -5.5% |
| 1955 | -4.6% |
| 1956 | -2.5% |
| 1957 | -2.8% |
| 1958 | -4.0% |
| 1959 | -2.8% |
| 1960 | 0.7% |
| 1961 | -2.6% |
| 1962 | -1.6% |
| 1963 | -3.9% |
| 1964 | -7.8% |
| 1965 | -4.7% |
| 1966 | 11.6% |
| 1967 | 1.3% |
| 1968 | 1.0% |
| 1969 | -0.7% |
| 1970 | 2.1% |
| 1971 | 0.1% |
| 1972 | 2.7% |
| 1973 | -0.3% |
| 1974 | -1.5% |
| 1975 | -3.0% |
| 1976 | -5.6% |
| 1977 | 2.0% |
| 1978 | 0.4% |
| 1979 | 2.4% |
| 1980 | -0.9% |
| 1981 | 2.0% |
| 1982 | 0.1% |
| 1983 | -1.0% |
| 1984 | 0.1% |
| 1985 | -0.5% |
| 1986 | -4.2% |
| 1987 | 0.8% |
| 1988 | 0.5% |
| 1989 | 4.2% |
| 1990 | 4.6% |
| 1991 | -1.7% |
| 1992 | -1.4% |
| 1993 | -0.8% |
| 1994 | 1.9% |
| 1995 | 2.6% |
| 1996 | 2.2% |
| 1997 | 2.5% |
| 1998 | 3.0% |
| 1999 | 2.2% |
| 2000 | 3.4% |
| 2001 | 4.4% |
| 2002 | 5.4% |
| 2003 | -2.3% |
| 2004 | 7.2% |
| 2005 | 1.6% |
| 2006 | 4.1% |
| 2007 | 5.5% |
| 2008 | 4.6% |
| 2009 | 5.2% |
| 2010 | 7.3% |
| 2011 | -0.2% |
| 2012 | 6.0% |
| 2013 | 10.4% |
| 2014 | 4.9% |
| 2015 | 2.8% |
| 2016 | 5.9% |
| 2017 | 5.3% |
| 2018 | 3.8% |
| 2019 | 4.8% |
| 2020 | 3.0% |
| 2021 | 3.2% |
| 2022 | -0.4% |
| 2023 | 3.4% |
| 2024 | -0.8% |
Share of the year's rain in its wettest five days
| Decade | Share of annual rain |
|---|---|
| 1960s | 9.4% |
| 1970s | 9.6% |
| 1980s | 9.4% |
| 1990s | 9.6% |
| 2000s | 9.3% |
| 2010s | 9.6% |
| 2020s | 9.6% |
Days with 25 mm or more rain
| Decade | Mean days per year |
|---|---|
| 1960s | 3.30 |
| 1970s | 3.07 |
| 1980s | 3.38 |
| 1990s | 3.57 |
| 2000s | 3.69 |
| 2010s | 3.76 |
| 2020s | 3.99 |
Days with 50 mm or more rain
| Decade | Mean days per year |
|---|---|
| 1960s | 0.38 |
| 1970s | 0.39 |
| 1980s | 0.39 |
| 1990s | 0.44 |
| 2000s | 0.42 |
| 2010s | 0.46 |
| 2020s | 0.48 |
Days with 100 mm or more rain
| Decade | Mean days per year |
|---|---|
| 1960s | 0.02 |
| 1970s | 0.02 |
| 1980s | 0.02 |
| 1990s | 0.03 |
| 2000s | 0.02 |
| 2010s | 0.03 |
| 2020s | 0.02 |
Longest dry spell of the year
| Decade | Mean longest dry spell, days |
|---|---|
| 1960s | 27.4 days |
| 1970s | 27.4 days |
| 1980s | 26.6 days |
| 1990s | 25.3 days |
| 2000s | 23.2 days |
| 2010s | 24.6 days |
| 2020s | 25.0 days |
The annual rain series uses stations with at least 50 complete years since 1951 and a 1961-1990 baseline. The decade charts use fixed sets of stations, the same in every decade from the 1960s. A dry day has less than 1 mm (0.04 in) of rain.
All climate measures for Europe
Heavy Rain and Dry Spells by Decade: North America
3,634 stations in the annual rain series- In North America, annual rain at 3,634 stations is shown as a percent difference from each station's own 1961-1990 mean, for 75 years from 1951 to 2025.
- The trend in annual rain is +1.3 percent per decade (95 percent interval +0.4 to +2.2), fitted to 75 years from 1951 to 2025.
- In North America, the share of a year's rain that fell in its wettest five days fell from 13.7 to 13.5 percent between the 1960s and the 2020s at 2,315 stations.
- In North America, the mean number of days with 25 mm (1.0 in) or more of rain per year rose from 7.63 to 8.44 between the 1960s and the 2020s.
- In North America, the mean number of days with 50 mm (2.0 in) or more of rain per year rose from 1.58 to 1.84 between the 1960s and the 2020s.
- In North America, the mean number of days with 100 mm (3.9 in) or more of rain per year rose from 0.15 to 0.17 between the 1960s and the 2020s.
- In North America, the mean longest dry spell of the year, in days with less than 1 mm of rain in a row, rose from 35.3 to 36.7 days between the 1960s and the 2020s, over the same 2,315 stations in every decade.
Annual rain against the 1961-1990 mean
| Year | Annual rain, percent difference from the mean |
|---|---|
| 1951 | 3.6% |
| 1952 | -7.7% |
| 1953 | -12.8% |
| 1954 | -8.2% |
| 1955 | -8.2% |
| 1956 | -18.9% |
| 1957 | 4.5% |
| 1958 | 7.2% |
| 1959 | -0.9% |
| 1960 | -4.8% |
| 1961 | -3.7% |
| 1962 | -6.5% |
| 1963 | -5.1% |
| 1964 | -6.3% |
| 1965 | 2.4% |
| 1966 | -11.6% |
| 1967 | 4.6% |
| 1968 | -4.3% |
| 1969 | 4.1% |
| 1970 | -1.0% |
| 1971 | -2.1% |
| 1972 | 1.5% |
| 1973 | 5.7% |
| 1974 | -2.8% |
| 1975 | -1.3% |
| 1976 | -10.7% |
| 1977 | -1.5% |
| 1978 | 6.6% |
| 1979 | 8.3% |
| 1980 | -1.7% |
| 1981 | 0.4% |
| 1982 | 9.2% |
| 1983 | 18.4% |
| 1984 | 1.1% |
| 1985 | -0.9% |
| 1986 | 5.5% |
| 1987 | -0.1% |
| 1988 | -10.7% |
| 1989 | -5.2% |
| 1990 | 6.3% |
| 1991 | 9.0% |
| 1992 | 6.3% |
| 1993 | 12.8% |
| 1994 | 1.9% |
| 1995 | 6.1% |
| 1996 | 8.0% |
| 1997 | 9.0% |
| 1998 | 15.4% |
| 1999 | -2.5% |
| 2000 | 0.6% |
| 2001 | -3.0% |
| 2002 | -6.1% |
| 2003 | 0.1% |
| 2004 | 10.8% |
| 2005 | 8.7% |
| 2006 | 1.0% |
| 2007 | -3.5% |
| 2008 | 6.3% |
| 2009 | -0.4% |
| 2010 | 7.7% |
| 2011 | -2.5% |
| 2012 | -6.0% |
| 2013 | 4.5% |
| 2014 | 3.1% |
| 2015 | 11.4% |
| 2016 | 6.7% |
| 2017 | 8.3% |
| 2018 | 11.0% |
| 2019 | 18.6% |
| 2020 | -5.6% |
| 2021 | 1.0% |
| 2022 | -2.2% |
| 2023 | 7.3% |
| 2024 | 3.0% |
| 2025 | -1.2% |
Share of the year's rain in its wettest five days
| Decade | Share of annual rain |
|---|---|
| 1960s | 13.7% |
| 1970s | 13.1% |
| 1980s | 13.1% |
| 1990s | 12.7% |
| 2000s | 13.3% |
| 2010s | 13.1% |
| 2020s | 13.5% |
Days with 25 mm or more rain
| Decade | Mean days per year |
|---|---|
| 1960s | 7.63 |
| 1970s | 8.24 |
| 1980s | 8.03 |
| 1990s | 8.75 |
| 2000s | 8.40 |
| 2010s | 9.00 |
| 2020s | 8.44 |
Days with 50 mm or more rain
| Decade | Mean days per year |
|---|---|
| 1960s | 1.58 |
| 1970s | 1.69 |
| 1980s | 1.66 |
| 1990s | 1.86 |
| 2000s | 1.80 |
| 2010s | 1.99 |
| 2020s | 1.84 |
Days with 100 mm or more rain
| Decade | Mean days per year |
|---|---|
| 1960s | 0.15 |
| 1970s | 0.16 |
| 1980s | 0.15 |
| 1990s | 0.18 |
| 2000s | 0.18 |
| 2010s | 0.20 |
| 2020s | 0.17 |
Longest dry spell of the year
| Decade | Mean longest dry spell, days |
|---|---|
| 1960s | 35.3 days |
| 1970s | 34.8 days |
| 1980s | 33.7 days |
| 1990s | 33.7 days |
| 2000s | 35.6 days |
| 2010s | 34.2 days |
| 2020s | 36.7 days |
The annual rain series uses stations with at least 50 complete years since 1951 and a 1961-1990 baseline. The decade charts use fixed sets of stations, the same in every decade from the 1960s. A dry day has less than 1 mm (0.04 in) of rain.
All climate measures for North America
Heavy Rain and Dry Spells by Decade: Oceania
1,917 stations in the annual rain series- In Oceania, annual rain at 1,917 stations is shown as a percent difference from each station's own 1961-1990 mean, for 75 years from 1951 to 2025.
- The trend in annual rain is +0.9 percent per decade (95 percent interval -1.3 to +3.1), fitted to 75 years from 1951 to 2025. The interval includes zero, so the series does not separate a trend from year to year variation.
- In Oceania, the share of a year's rain that fell in its wettest five days fell from 16.5 to 15.7 percent between the 1960s and the 2020s at 901 stations.
- In Oceania, the mean number of days with 25 mm (1.0 in) or more of rain per year rose from 5.46 to 6.67 between the 1960s and the 2020s.
- In Oceania, the mean number of days with 50 mm (2.0 in) or more of rain per year rose from 1.32 to 1.70 between the 1960s and the 2020s.
- In Oceania, the mean number of days with 100 mm (3.9 in) or more of rain per year rose from 0.21 to 0.29 between the 1960s and the 2020s.
- In Oceania, the mean longest dry spell of the year, in days with less than 1 mm of rain in a row, fell from 45.5 to 40.1 days between the 1960s and the 2020s, over the same 901 stations in every decade.
Annual rain against the 1961-1990 mean
| Year | Annual rain, percent difference from the mean |
|---|---|
| 1951 | -14.4% |
| 1952 | -5.2% |
| 1953 | -3.0% |
| 1954 | -3.6% |
| 1955 | 29.0% |
| 1956 | 26.0% |
| 1957 | -17.3% |
| 1958 | -4.2% |
| 1959 | -14.8% |
| 1960 | 4.5% |
| 1961 | -16.9% |
| 1962 | -4.3% |
| 1963 | 7.3% |
| 1964 | -6.2% |
| 1965 | -21.4% |
| 1966 | -8.7% |
| 1967 | -9.1% |
| 1968 | 16.0% |
| 1969 | -13.0% |
| 1970 | -15.6% |
| 1971 | 6.5% |
| 1972 | -20.9% |
| 1973 | 30.3% |
| 1974 | 54.2% |
| 1975 | 22.0% |
| 1976 | 7.0% |
| 1977 | -9.7% |
| 1978 | 10.9% |
| 1979 | -3.7% |
| 1980 | -4.1% |
| 1981 | 9.5% |
| 1982 | -12.4% |
| 1983 | 0.4% |
| 1984 | 11.1% |
| 1985 | -13.0% |
| 1986 | -9.5% |
| 1987 | -7.4% |
| 1988 | -2.1% |
| 1989 | 5.6% |
| 1990 | -8.1% |
| 1991 | -0.6% |
| 1992 | 5.3% |
| 1993 | 1.1% |
| 1994 | -23.9% |
| 1995 | 10.9% |
| 1996 | 4.4% |
| 1997 | 11.5% |
| 1998 | 9.5% |
| 1999 | 18.1% |
| 2000 | 42.0% |
| 2001 | 6.5% |
| 2002 | -26.9% |
| 2003 | -0.8% |
| 2004 | 4.1% |
| 2005 | -11.0% |
| 2006 | -0.5% |
| 2007 | 1.0% |
| 2008 | -3.0% |
| 2009 | -3.3% |
| 2010 | 32.6% |
| 2011 | 39.9% |
| 2012 | -2.7% |
| 2013 | -8.0% |
| 2014 | -1.8% |
| 2015 | -4.9% |
| 2016 | 11.8% |
| 2017 | 5.7% |
| 2018 | -7.1% |
| 2019 | -36.0% |
| 2020 | 5.3% |
| 2021 | 9.6% |
| 2022 | 27.3% |
| 2023 | -3.1% |
| 2024 | 12.9% |
| 2025 | 5.1% |
Share of the year's rain in its wettest five days
| Decade | Share of annual rain |
|---|---|
| 1960s | 16.5% |
| 1970s | 16.5% |
| 1980s | 15.8% |
| 1990s | 16.3% |
| 2000s | 16.9% |
| 2010s | 17.4% |
| 2020s | 15.7% |
Days with 25 mm or more rain
| Decade | Mean days per year |
|---|---|
| 1960s | 5.46 |
| 1970s | 6.30 |
| 1980s | 5.68 |
| 1990s | 5.64 |
| 2000s | 4.97 |
| 2010s | 5.61 |
| 2020s | 6.67 |
Days with 50 mm or more rain
| Decade | Mean days per year |
|---|---|
| 1960s | 1.32 |
| 1970s | 1.67 |
| 1980s | 1.36 |
| 1990s | 1.36 |
| 2000s | 1.22 |
| 2010s | 1.48 |
| 2020s | 1.70 |
Days with 100 mm or more rain
| Decade | Mean days per year |
|---|---|
| 1960s | 0.21 |
| 1970s | 0.32 |
| 1980s | 0.21 |
| 1990s | 0.23 |
| 2000s | 0.20 |
| 2010s | 0.27 |
| 2020s | 0.29 |
Longest dry spell of the year
| Decade | Mean longest dry spell, days |
|---|---|
| 1960s | 45.5 days |
| 1970s | 43.2 days |
| 1980s | 44.6 days |
| 1990s | 44.4 days |
| 2000s | 46.1 days |
| 2010s | 42.0 days |
| 2020s | 40.1 days |
The annual rain series uses stations with at least 50 complete years since 1951 and a 1961-1990 baseline. The decade charts use fixed sets of stations, the same in every decade from the 1960s. A dry day has less than 1 mm (0.04 in) of rain.
All climate measures for Oceania
Countries
14 with data| Country | Stations in the annual rain series | Days of 25 mm or more per year, first decade | Days of 25 mm or more per year, last decade | Change in days per year | Annual rain trend, percent per decade (95 percent interval) |
|---|---|---|---|---|---|
| Norway | 203 | 8.1 (1960s) | 11.8 (2020s) | +3.68 | +2.6 (+1.7 to +3.5) |
| Australia | 1,910 | 5.2 (1960s) | 6.4 (2020s) | +1.21 | +1.0 (-1.6 to +3.6) |
| United Kingdom | 64 | 3.3 (1960s) | 4.5 (2020s) | +1.15 | +1.4 (+0.3 to +2.4) |
| United States | 3,610 | 7.6 (1960s) | 8.4 (2020s) | +0.82 | +1.4 (+0.5 to +2.3) |
| Finland | 102 | 0.8 (1960s) | 1.6 (2020s) | +0.81 | +2.4 (+1.0 to +3.8) |
| Sweden | 307 | 1.5 (1960s) | 2.2 (2020s) | +0.72 | +2.7 (+1.6 to +3.8) |
| Netherlands | 283 | 2.2 (1960s) | 2.7 (2020s) | +0.52 | +4.4 (+2.6 to +6.2) |
| Estonia | 25 | 1.1 (1960s) | 1.4 (2020s) | +0.34 | +2.5 (+0.9 to +4.0) |
| Russia | 507 | 2.1 (1960s) | 2.4 (2020s) | +0.33 | +1.8 (+1.4 to +2.3) |
| Romania | 23 | 2.9 (1960s) | 3.0 (2020s) | +0.15 | +0.2 (-1.8 to +2.1) |
| Croatia | 13 | 11.2 (1960s) | 11.4 (2020s) | +0.14 | +0.7 (-1.0 to +2.3) |
| Germany | 342 | 2.8 (1960s) | 3.0 (2020s) | +0.13 | 0.0 (-1.4 to +1.4) |
| France | 42 | 4.2 (1960s) | 3.7 (2020s) | -0.57 | +0.1 (-1.1 to +1.4) |
| Spain | 55 | 6.4 (1960s) | 5.2 (2020s) | -1.20 | -3.1 (-4.8 to -1.3) |
Ordered by the change in mean days with 25 mm or more rain per year between a country's first and last decade in the file. The station count is for the annual rain series (n/a when that series is not shown for the country); heavy rain days use a fixed set of stations for each country.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17. The figures are computed by this site from daily station records. They describe the stations in each set, not every place.