Annual precipitation in American Samoa
American Samoa: Annual precipitation was 2,994 millimeters in 2025. ▲ Rising
Latest (2025)
2,994 millimeters
Change on year
up 13.8%
World rank
12th
of 192 countries
All-time high
3,576 millimeters
in 1941
All-time low
1,704 millimeters
in 1983
Years of data
86
1940–2025
Annual precipitation in American Samoa, 1940–2025
Source: Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data. Measured in millimeters.
Analysis
American Samoa recorded 2,994 millimeters for annual precipitation in 2025.
The figure is up 13.8% on the previous year and up 22.0% over ten years.
Over the whole period, annual precipitation in American Samoa peaked at 3,576 millimeters in 1941 and was at its lowest, 1,704 millimeters, in 1983.
American Samoa ranks 12th of 192 countries on this measure, in the top 10%.
The long-run direction has been consistently rising across the 86 years of available data.
Annual precipitation in American Samoa, year by year
| Year | millimeters | Change |
|---|---|---|
| 1940 | 2,583 millimeters | — |
| 1941 | 3,576 millimeters | +38.5% |
| 1942 | 2,256 millimeters | -36.9% |
| 1943 | 1,871 millimeters | -17.1% |
| 1944 | 2,247 millimeters | +20.1% |
| 1945 | 2,193 millimeters | -2.4% |
| 1946 | 2,221 millimeters | +1.3% |
| 1947 | 2,616 millimeters | +17.8% |
| 1948 | 2,427 millimeters | -7.2% |
| 1949 | 1,879 millimeters | -22.6% |
| 1950 | 1,723 millimeters | -8.3% |
| 1951 | 2,166 millimeters | +25.7% |
| 1952 | 3,166 millimeters | +46.2% |
| 1953 | 2,469 millimeters | -22.0% |
| 1954 | 2,109 millimeters | -14.6% |
| 1955 | 2,222 millimeters | +5.4% |
| 1956 | 2,044 millimeters | -8.0% |
| 1957 | 3,020 millimeters | +47.7% |
| 1958 | 2,915 millimeters | -3.5% |
| 1959 | 2,842 millimeters | -2.5% |
| 1960 | 2,865 millimeters | +0.8% |
| 1961 | 2,323 millimeters | -18.9% |
| 1962 | 2,699 millimeters | +16.2% |
| 1963 | 2,214 millimeters | -17.9% |
| 1964 | 2,708 millimeters | +22.3% |
| 1965 | 2,279 millimeters | -15.8% |
| 1966 | 2,309 millimeters | +1.3% |
| 1967 | 2,553 millimeters | +10.6% |
| 1968 | 2,022 millimeters | -20.8% |
| 1969 | 1,769 millimeters | -12.5% |
| 1970 | 2,307 millimeters | +30.4% |
| 1971 | 2,073 millimeters | -10.1% |
| 1972 | 2,278 millimeters | +9.9% |
| 1973 | 3,201 millimeters | +40.5% |
| 1974 | 1,884 millimeters | -41.1% |
| 1975 | 1,975 millimeters | +4.8% |
| 1976 | 2,113 millimeters | +7.0% |
| 1977 | 2,178 millimeters | +3.1% |
| 1978 | 3,181 millimeters | +46.1% |
| 1979 | 1,995 millimeters | -37.3% |
| 1980 | 2,060 millimeters | +3.3% |
| 1981 | 2,557 millimeters | +24.1% |
| 1982 | 1,900 millimeters | -25.7% |
| 1983 | 1,704 millimeters | -10.3% |
| 1984 | 2,512 millimeters | +47.4% |
| 1985 | 1,971 millimeters | -21.5% |
| 1986 | 2,518 millimeters | +27.7% |
| 1987 | 1,938 millimeters | -23.0% |
| 1988 | 2,767 millimeters | +42.8% |
| 1989 | 2,146 millimeters | -22.5% |
| 1990 | 2,258 millimeters | +5.2% |
| 1991 | 2,358 millimeters | +4.4% |
| 1992 | 2,198 millimeters | -6.8% |
| 1993 | 2,210 millimeters | +0.6% |
| 1994 | 2,621 millimeters | +18.6% |
| 1995 | 2,689 millimeters | +2.6% |
| 1996 | 2,671 millimeters | -0.7% |
| 1997 | 2,205 millimeters | -17.5% |
| 1998 | 1,765 millimeters | -19.9% |
| 1999 | 2,487 millimeters | +40.9% |
| 2000 | 2,203 millimeters | -11.4% |
| 2001 | 2,772 millimeters | +25.8% |
| 2002 | 2,395 millimeters | -13.6% |
| 2003 | 2,819 millimeters | +17.7% |
| 2004 | 2,283 millimeters | -19.0% |
| 2005 | 2,591 millimeters | +13.5% |
| 2006 | 3,362 millimeters | +29.8% |
| 2007 | 3,327 millimeters | -1.0% |
| 2008 | 2,526 millimeters | -24.1% |
| 2009 | 2,242 millimeters | -11.3% |
| 2010 | 2,728 millimeters | +21.7% |
| 2011 | 2,370 millimeters | -13.1% |
| 2012 | 2,674 millimeters | +12.8% |
| 2013 | 2,719 millimeters | +1.7% |
| 2014 | 2,636 millimeters | -3.0% |
| 2015 | 2,454 millimeters | -6.9% |
| 2016 | 2,685 millimeters | +9.4% |
| 2017 | 2,948 millimeters | +9.8% |
| 2018 | 2,898 millimeters | -1.7% |
| 2019 | 2,452 millimeters | -15.4% |
| 2020 | 3,319 millimeters | +35.4% |
| 2021 | 2,050 millimeters | -38.2% |
| 2022 | 2,129 millimeters | +3.9% |
| 2023 | 2,392 millimeters | +12.3% |
| 2024 | 2,632 millimeters | +10.0% |
| 2025 | 2,994 millimeters | +13.8% |
American Samoa compared with similar countries
- American Samoa's 2,994 millimeters is above the median for high income countries, which is 891.63 millimeters, 3.4× the median. (65 countries reporting)
- American Samoa's 2,994 millimeters is above the median for East Asia & Pacific, which is 1,984 millimeters, 1.5× the median. (27 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | 2,387 millimeters | 1,871 millimeters | 3,576 millimeters | 10 |
| 1950s | 2,468 millimeters | 1,723 millimeters | 3,166 millimeters | 10 |
| 1960s | 2,374 millimeters | 1,769 millimeters | 2,865 millimeters | 10 |
| 1970s | 2,318 millimeters | 1,884 millimeters | 3,201 millimeters | 10 |
| 1980s | 2,207 millimeters | 1,704 millimeters | 2,767 millimeters | 10 |
| 1990s | 2,346 millimeters | 1,765 millimeters | 2,689 millimeters | 10 |
| 2000s | 2,652 millimeters | 2,203 millimeters | 3,362 millimeters | 10 |
| 2010s | 2,656 millimeters | 2,370 millimeters | 2,948 millimeters | 10 |
| 2020s | 2,586 millimeters | 2,050 millimeters | 3,319 millimeters | 6 |
Countries ranked near American Samoa
More climate change data for American Samoa
- Spring temperature anomalies 0.1942 °C (2026)
- Summer temperature anomalies -0.1017 °C (2026)
- Temperature anomalies by month 0.0944 °C (2026)
- Share of global CO₂ emissions and population 0.0% (2100)
- Population, total, annual growth rate -1.57 % change on previous year (2025)
- Population, total, per unit of GDP 0.0001 units per US$ of GDP (2022)
- Urban population, annual growth rate -2.1 % change on previous year (2025)
- Urban population, per unit of GDP 0 units per US$ of GDP (2022)
- Urban population, per capita 0.8051 units per person (2025)
- Precipitation anomalies, annual growth rate 807.87 % change on previous year (2025)
Frequently asked questions
- What is annual precipitation in American Samoa?
- Annual precipitation in American Samoa was 2,994 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 annual precipitation recorded in American Samoa?
- The highest recorded value was 3,576 millimeters in 1941.
- What is the lowest annual precipitation recorded in American Samoa?
- The lowest recorded value was 1,704 millimeters in 1983.
- How does American Samoa rank for annual precipitation?
- American Samoa ranks 12th out of 192 countries with data for 2025.
- Is annual precipitation rising or falling in American Samoa?
- Over the last ten years it is up 22.0%. The long-run trend across the full record is rising.
- Where does this American Samoa 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 Annual precipitation. 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
Total annual precipitation—rain and snow—calculated as the sum of daily averages, reported as the depth of water falling to Earth's surface, excluding fog and dew.