Summer temperature anomalies in American Samoa
American Samoa: Summer temperature anomalies was -0.1017 °C in 2026. ◆ Volatile
Latest (2026)
-0.1017 °C
Change on year
down 139.3%
World rank
178th
of 193 countries
All-time high
0.7184 °C
in 2019
All-time low
-1.03 °C
in 1956
Years of data
87
1940–2026
Summer temperature anomalies in American Samoa, 1940–2026
Source: Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data. Measured in °C.
Analysis
In 2026, summer temperature anomalies in American Samoa stood at -0.1017 °C.
The figure is down 139.3% on the previous year and down 809.6% over ten years.
Over the whole period, summer temperature anomalies in American Samoa peaked at 0.7184 °C in 2019 and was at its lowest, -1.03 °C, in 1956.
American Samoa ranks 178th of 193 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Summer temperature anomalies in American Samoa, year by year
| Year | °C | Change |
|---|---|---|
| 1940 | -0.488 °C | — |
| 1941 | -0.2076 °C | -57.5% |
| 1942 | -0.443 °C | +113.4% |
| 1943 | -0.6476 °C | +46.2% |
| 1944 | -0.0448 °C | -93.1% |
| 1945 | -0.234 °C | +422.9% |
| 1946 | -0.1013 °C | -56.7% |
| 1947 | -0.4432 °C | +337.7% |
| 1948 | -0.0569 °C | -87.2% |
| 1949 | -0.1594 °C | +180.2% |
| 1950 | -0.4639 °C | +191.0% |
| 1951 | -0.3505 °C | -24.4% |
| 1952 | 0.0541 °C | -115.4% |
| 1953 | -0.2888 °C | -634.1% |
| 1954 | -0.5905 °C | +104.5% |
| 1955 | -0.4222 °C | -28.5% |
| 1956 | -1.03 °C | +144.1% |
| 1957 | -0.0862 °C | -91.6% |
| 1958 | -0.086 °C | -0.2% |
| 1959 | -0.2617 °C | +204.3% |
| 1960 | -0.2865 °C | +9.5% |
| 1961 | -0.2473 °C | -13.7% |
| 1962 | -0.8415 °C | +240.3% |
| 1963 | -0.1515 °C | -82.0% |
| 1964 | -0.4857 °C | +220.6% |
| 1965 | -0.8746 °C | +80.1% |
| 1966 | -0.2784 °C | -68.2% |
| 1967 | -0.3372 °C | +21.1% |
| 1968 | 0.2653 °C | -178.7% |
| 1969 | -0.1877 °C | -170.7% |
| 1970 | 0.0027 °C | -101.4% |
| 1971 | -0.3938 °C | -14828.0% |
| 1972 | -0.1868 °C | -52.6% |
| 1973 | -0.4283 °C | +129.3% |
| 1974 | -0.6504 °C | +51.9% |
| 1975 | -0.2258 °C | -65.3% |
| 1976 | -0.6391 °C | +183.0% |
| 1977 | -0.3065 °C | -52.0% |
| 1978 | -0.4624 °C | +50.9% |
| 1979 | -0.1423 °C | -69.2% |
| 1980 | -0.1096 °C | -23.0% |
| 1981 | -0.4622 °C | +321.8% |
| 1982 | 0.386 °C | -183.5% |
| 1983 | -0.5683 °C | -247.2% |
| 1984 | -0.5012 °C | -11.8% |
| 1985 | -0.6407 °C | +27.8% |
| 1986 | -0.2958 °C | -53.8% |
| 1987 | -0.886 °C | +199.5% |
| 1988 | -0.2195 °C | -75.2% |
| 1989 | -0.5463 °C | +148.9% |
| 1990 | -0.0388 °C | -92.9% |
| 1991 | 0.1026 °C | -364.2% |
| 1992 | 0.0615 °C | -40.1% |
| 1993 | -0.3561 °C | -679.2% |
| 1994 | -0.3022 °C | -15.1% |
| 1995 | 0.2392 °C | -179.2% |
| 1996 | -0.001 °C | -100.4% |
| 1997 | -0.6317 °C | +65877.3% |
| 1998 | -0.5377 °C | -14.9% |
| 1999 | -0.1973 °C | -63.3% |
| 2000 | -0.2252 °C | +14.2% |
| 2001 | -0.2349 °C | +4.3% |
| 2002 | 0.0239 °C | -110.2% |
| 2003 | -0.2924 °C | -1322.6% |
| 2004 | 0.223 °C | -176.3% |
| 2005 | -0.0478 °C | -121.4% |
| 2006 | 0.0616 °C | -228.9% |
| 2007 | 0.3828 °C | +521.1% |
| 2008 | -0.3224 °C | -184.2% |
| 2009 | -0.0653 °C | -79.7% |
| 2010 | 0.4563 °C | -798.9% |
| 2011 | -0.1195 °C | -126.2% |
| 2012 | -0.2294 °C | +91.9% |
| 2013 | 0.4531 °C | -297.5% |
| 2014 | -0.0931 °C | -120.5% |
| 2015 | -0.0437 °C | -53.1% |
| 2016 | 0.0143 °C | -132.8% |
| 2017 | 0.3227 °C | +2151.9% |
| 2018 | 0.4444 °C | +37.7% |
| 2019 | 0.7184 °C | +61.7% |
| 2020 | 0.1958 °C | -72.7% |
| 2021 | -0.1644 °C | -184.0% |
| 2022 | -0.0075 °C | -95.4% |
| 2023 | 0.4808 °C | -6520.2% |
| 2024 | 0.4124 °C | -14.2% |
| 2025 | 0.2586 °C | -37.3% |
| 2026 | -0.1017 °C | -139.3% |
American Samoa compared with similar countries
- American Samoa's -0.1017 °C is below the median for high income countries, which is 1.13 °C. (65 countries reporting)
- American Samoa's -0.1017 °C is below the median for East Asia & Pacific, which is 0.441 °C. (27 countries reporting)
Biggest year-on-year movements
Years where Summer temperature anomalies in American Samoa 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 |
|---|---|---|---|
| 1997 | -65877.3% | -0.001 °C | -0.6317 °C |
| 1971 | -14828.0% | 0.0027 °C | -0.3938 °C |
| 2023 | +6520.2% | -0.0075 °C | 0.4808 °C |
| 2017 | +2151.9% | 0.0143 °C | 0.3227 °C |
| 2003 | -1322.6% | 0.0239 °C | -0.2924 °C |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | -0.2826 °C | -0.6476 °C | -0.0448 °C | 10 |
| 1950s | -0.3526 °C | -1.03 °C | 0.0541 °C | 10 |
| 1960s | -0.3425 °C | -0.8746 °C | 0.2653 °C | 10 |
| 1970s | -0.3433 °C | -0.6504 °C | 0.0027 °C | 10 |
| 1980s | -0.3844 °C | -0.886 °C | 0.386 °C | 10 |
| 1990s | -0.1662 °C | -0.6317 °C | 0.2392 °C | 10 |
| 2000s | -0.0497 °C | -0.3224 °C | 0.3828 °C | 10 |
| 2010s | 0.1924 °C | -0.2294 °C | 0.7184 °C | 10 |
| 2020s | 0.1534 °C | -0.1644 °C | 0.4808 °C | 7 |
Countries ranked near American Samoa
More climate change data for American Samoa
- Spring temperature anomalies 0.1942 °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)
- Autumn temperature anomalies -0.3295 °C (2025)
Frequently asked questions
- What is summer temperature anomalies in American Samoa?
- Summer temperature anomalies in American Samoa was -0.1017 °C in 2026, according to Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data.
- What is the highest summer temperature anomalies recorded in American Samoa?
- The highest recorded value was 0.7184 °C in 2019.
- What is the lowest summer temperature anomalies recorded in American Samoa?
- The lowest recorded value was -1.03 °C in 1956.
- How does American Samoa rank for summer temperature anomalies?
- American Samoa ranks 178th out of 193 countries with data for 2026.
- Is summer temperature anomalies rising or falling in American Samoa?
- Over the last ten years it is down 809.6%. 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 Summer temperature anomalies. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 87 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Difference in a specific month's average surface temperature from the mean temperature of the same month during the period 1991-2020, measured in degrees Celsius.