Precipitation anomalies in American Samoa
American Samoa: Precipitation anomalies was 406.76 millimeters in 2025. ◆ Volatile
Precipitation anomalies 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
In 2025, precipitation anomalies in American Samoa stood at 406.76 millimeters.
The figure is up 807.9% on the previous year and up 406.5% over ten years.
Over the whole period, precipitation anomalies in American Samoa peaked at 989.5 millimeters in 1941 and was at its lowest, -883.23 millimeters, in 1983.
That places American Samoa 8th out of 192 countries with data for 2025, putting it in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | -200.2 millimeters | -716.34 millimeters | 989.5 millimeters | 10 |
| 1950s | -119.39 millimeters | -863.51 millimeters | 578.95 millimeters | 10 |
| 1960s | -212.82 millimeters | -817.72 millimeters | 278.38 millimeters | 10 |
| 1970s | -268.59 millimeters | -702.75 millimeters | 614.05 millimeters | 10 |
| 1980s | -379.72 millimeters | -883.23 millimeters | 180.29 millimeters | 10 |
| 1990s | -240.67 millimeters | -821.47 millimeters | 102.5 millimeters | 10 |
| 2000s | 65.02 millimeters | -383.71 millimeters | 775.18 millimeters | 10 |
| 2010s | 69.51 millimeters | -217.16 millimeters | 361.22 millimeters | 10 |
| 2020s | -1.01 millimeters | -536.99 millimeters | 732.33 millimeters | 6 |
Countries ranked near American Samoa
More reference data data for American Samoa
- Spring temperature anomalies 0.1942 °C (2026)
- Temperature anomalies by month 0.0944 °C (2026)
- Summer temperature anomalies -0.1017 °C (2026)
- Autumn temperature anomalies -0.3295 °C (2025)
- Winter temperature anomalies 0.2171 °C (2025)
- Annual precipitation 2,994 millimeters (2025)
- Seafood production: wild fish catch vs. aquaculture 15 metric tons (2024)
- Share of adult men overweight or obese vs. daily supply of calories 89.7% (2024)
- Share of adults who are overweight or obese 91.0% (2024)
- Share of men and women expected to survive to the age of 65 82.6% (2024)
Frequently asked questions
- What is precipitation anomalies in American Samoa?
- Precipitation anomalies in American Samoa was 406.76 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 American Samoa?
- The highest recorded value was 989.5 millimeters in 1941.
- What is the lowest precipitation anomalies recorded in American Samoa?
- The lowest recorded value was -883.23 millimeters in 1983.
- How does American Samoa rank for precipitation anomalies?
- American Samoa ranks 8th out of 192 countries with data for 2025.
- Is precipitation anomalies rising or falling in American Samoa?
- Over the last ten years it is up 406.5%. The long-run trend across the full record is volatile.
- 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 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
The difference in a specific year's total precipitation—rain and snow—from the 1991–2020 average, measured in millimeters, excluding fog and dew.