Precipitation anomalies in Cook Islands
Cook Islands: Precipitation anomalies was -153.83 millimeters in 2025. ◆ Volatile
Latest (2025)
-153.83 millimeters
Change on year
down 123.6%
World rank
164th
of 192 countries
All-time high
1,019 millimeters
in 1942
All-time low
-648.42 millimeters
in 1998
Years of data
86
1940–2025
Precipitation anomalies in Cook Islands, 1940–2025
Source: Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data. Measured in millimeters.
Analysis
In 2025, precipitation anomalies in Cook Islands stood at -153.83 millimeters.
That represents a change of down 123.6% on the previous year and down 1,183.7% over ten years.
Over the whole period, precipitation anomalies in Cook Islands peaked at 1,019 millimeters in 1942 and was at its lowest, -648.42 millimeters, in 1998.
Cook Islands ranks 164th of 192 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Precipitation anomalies in Cook Islands, year by year
| Year | millimeters | Change |
|---|---|---|
| 1940 | 48.09 millimeters | — |
| 1941 | -194.41 millimeters | -504.2% |
| 1942 | 1,019 millimeters | -624.1% |
| 1943 | -66.24 millimeters | -106.5% |
| 1944 | -280.64 millimeters | +323.7% |
| 1945 | -26.96 millimeters | -90.4% |
| 1946 | 39.69 millimeters | -247.2% |
| 1947 | 674.5 millimeters | +1599.4% |
| 1948 | 197.9 millimeters | -70.7% |
| 1949 | -200.43 millimeters | -201.3% |
| 1950 | 30.43 millimeters | -115.2% |
| 1951 | 316.97 millimeters | +941.5% |
| 1952 | 56.26 millimeters | -82.2% |
| 1953 | -31.23 millimeters | -155.5% |
| 1954 | 628.2 millimeters | -2111.4% |
| 1955 | 585.43 millimeters | -6.8% |
| 1956 | 271.06 millimeters | -53.7% |
| 1957 | 280.69 millimeters | +3.5% |
| 1958 | -248.71 millimeters | -188.6% |
| 1959 | 362.55 millimeters | -245.8% |
| 1960 | 155.81 millimeters | -57.0% |
| 1961 | -162.45 millimeters | -204.3% |
| 1962 | 548.07 millimeters | -437.4% |
| 1963 | -80.44 millimeters | -114.7% |
| 1964 | 325.14 millimeters | -504.2% |
| 1965 | 97.5 millimeters | -70.0% |
| 1966 | -72.85 millimeters | -174.7% |
| 1967 | 353.57 millimeters | -585.3% |
| 1968 | 48.63 millimeters | -86.2% |
| 1969 | -239.41 millimeters | -592.3% |
| 1970 | -3.8 millimeters | -98.4% |
| 1971 | -325.84 millimeters | +8484.6% |
| 1972 | -199 millimeters | -38.9% |
| 1973 | 87.6 millimeters | -144.0% |
| 1974 | 516.07 millimeters | +489.1% |
| 1975 | -148.42 millimeters | -128.8% |
| 1976 | 81.95 millimeters | -155.2% |
| 1977 | 227.37 millimeters | +177.5% |
| 1978 | 306.75 millimeters | +34.9% |
| 1979 | -194.11 millimeters | -163.3% |
| 1980 | -16.82 millimeters | -91.3% |
| 1981 | 508.77 millimeters | -3124.1% |
| 1982 | -586.59 millimeters | -215.3% |
| 1983 | -480.32 millimeters | -18.1% |
| 1984 | -13.39 millimeters | -97.2% |
| 1985 | 67.04 millimeters | -600.5% |
| 1986 | 326.02 millimeters | +386.3% |
| 1987 | 4 millimeters | -98.8% |
| 1988 | 698.69 millimeters | +17381.0% |
| 1989 | 215.61 millimeters | -69.1% |
| 1990 | -149.25 millimeters | -169.2% |
| 1991 | 60.03 millimeters | -140.2% |
| 1992 | -398.66 millimeters | -764.1% |
| 1993 | -316.62 millimeters | -20.6% |
| 1994 | 51.54 millimeters | -116.3% |
| 1995 | 69.54 millimeters | +34.9% |
| 1996 | -148.03 millimeters | -312.8% |
| 1997 | -307.6 millimeters | +107.8% |
| 1998 | -648.42 millimeters | +110.8% |
| 1999 | 523.94 millimeters | -180.8% |
| 2000 | 7.29 millimeters | -98.6% |
| 2001 | -170.25 millimeters | -2437.0% |
| 2002 | -346.45 millimeters | +103.5% |
| 2003 | 329.35 millimeters | -195.1% |
| 2004 | -189.79 millimeters | -157.6% |
| 2005 | 176.08 millimeters | -192.8% |
| 2006 | 629.44 millimeters | +257.5% |
| 2007 | 101.08 millimeters | -83.9% |
| 2008 | 91.57 millimeters | -9.4% |
| 2009 | 345.69 millimeters | +277.5% |
| 2010 | 17.41 millimeters | -95.0% |
| 2011 | 105.87 millimeters | +508.2% |
| 2012 | -116.97 millimeters | -210.5% |
| 2013 | -537.94 millimeters | +359.9% |
| 2014 | -85.67 millimeters | -84.1% |
| 2015 | 14.2 millimeters | -116.6% |
| 2016 | -37.76 millimeters | -366.0% |
| 2017 | 114.04 millimeters | -402.0% |
| 2018 | 259.33 millimeters | +127.4% |
| 2019 | 99.18 millimeters | -61.8% |
| 2020 | 308.59 millimeters | +211.2% |
| 2021 | 224.25 millimeters | -27.3% |
| 2022 | 379.71 millimeters | +69.3% |
| 2023 | 89.14 millimeters | -76.5% |
| 2024 | -68.78 millimeters | -177.2% |
| 2025 | -153.83 millimeters | +123.6% |
Biggest year-on-year movements
Years where Precipitation anomalies in Cook Islands 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 |
|---|---|---|---|
| 1988 | +17381.0% | 4 millimeters | 698.69 millimeters |
| 1971 | -8484.6% | -3.8 millimeters | -325.84 millimeters |
| 1981 | +3124.1% | -16.82 millimeters | 508.77 millimeters |
| 2001 | -2437.0% | 7.29 millimeters | -170.25 millimeters |
| 1954 | +2111.4% | -31.23 millimeters | 628.2 millimeters |
| 1947 | +1599.4% | 39.69 millimeters | 674.5 millimeters |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | 121.04 millimeters | -280.64 millimeters | 1,019 millimeters | 10 |
| 1950s | 225.17 millimeters | -248.71 millimeters | 628.2 millimeters | 10 |
| 1960s | 97.36 millimeters | -239.41 millimeters | 548.07 millimeters | 10 |
| 1970s | 34.86 millimeters | -325.84 millimeters | 516.07 millimeters | 10 |
| 1980s | 72.3 millimeters | -586.59 millimeters | 698.69 millimeters | 10 |
| 1990s | -126.35 millimeters | -648.42 millimeters | 523.94 millimeters | 10 |
| 2000s | 97.4 millimeters | -346.45 millimeters | 629.44 millimeters | 10 |
| 2010s | -16.83 millimeters | -537.94 millimeters | 259.33 millimeters | 10 |
| 2020s | 129.85 millimeters | -153.83 millimeters | 379.71 millimeters | 6 |
Countries ranked near Cook Islands
More climate change data for Cook Islands
- Nutrient nitrogen N (total) — Synthetic fertilizers (Agricultural) 25,902 kg (2050)
- Emissions from livestock — Emissions (CO2eq) 35.8 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from N2O 5.43 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from CH4 30.36 kt (2050)
- Emissions from livestock — Emissions 0.0205 kt (2050)
- Emissions from livestock — Emissions 1.08 kt (2050)
- Emissions from crops — Emissions (CO2eq) 0.1325 kt (2050)
- Emissions from crops — Emissions (CO2eq) from N2O 0.1325 kt (2050)
- Emissions from crops — Emissions 0.0005 kt (2050)
- Synthetic Fertilizers — Emissions (CO2eq) 0.1325 kt (2050)
Frequently asked questions
- What is precipitation anomalies in Cook Islands?
- Precipitation anomalies in Cook Islands was -153.83 millimeters in 2025, according to Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data.
- What is the highest precipitation anomalies recorded in Cook Islands?
- The highest recorded value was 1,019 millimeters in 1942.
- What is the lowest precipitation anomalies recorded in Cook Islands?
- The lowest recorded value was -648.42 millimeters in 1998.
- How does Cook Islands rank for precipitation anomalies?
- Cook Islands ranks 164th out of 192 countries with data for 2025.
- Is precipitation anomalies rising or falling in Cook Islands?
- Over the last ten years it is down 1,183.7%. The long-run trend across the full record is volatile.
- Where does this Cook Islands data come from?
- The figures come from Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data, published as part of Precipitation anomalies. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 86 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Difference in a specific year's total precipitation—rain and snow—from the 1991–2020 average, measured in millimeters, excluding fog and dew.