Precipitation anomalies in Heard Island and McDonald Islands
Heard Island and McDonald Islands: Precipitation anomalies was 29.5 millimeters in 2025. ◆ Volatile
Latest (2025)
29.5 millimeters
Change on year
up 363.4%
World rank
63rd
of 192 countries
All-time high
198.02 millimeters
in 2019
All-time low
-480.03 millimeters
in 1949
Years of data
86
1940–2025
Precipitation anomalies in Heard Island and McDonald Islands, 1940–2025
Source: Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data. Measured in millimeters.
Analysis
The most recent figure for precipitation anomalies in Heard Island and McDonald Islands is 29.5 millimeters, measured in 2025.
That represents a change of up 363.4% on the previous year and up 407.3% over ten years.
Over the whole period, precipitation anomalies in Heard Island and McDonald Islands peaked at 198.02 millimeters in 2019 and was at its lowest, -480.03 millimeters, in 1949.
Heard Island and McDonald Islands ranks 63rd of 192 countries on this measure, in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Precipitation anomalies in Heard Island and McDonald Islands, year by year
| Year | millimeters | Change |
|---|---|---|
| 1940 | -24.86 millimeters | — |
| 1941 | -115.02 millimeters | +362.7% |
| 1942 | -13.33 millimeters | -88.4% |
| 1943 | -152.04 millimeters | +1040.8% |
| 1944 | -147.01 millimeters | -3.3% |
| 1945 | -163.75 millimeters | +11.4% |
| 1946 | -60.34 millimeters | -63.2% |
| 1947 | -57.56 millimeters | -4.6% |
| 1948 | -93.51 millimeters | +62.4% |
| 1949 | -480.03 millimeters | +413.4% |
| 1950 | -406.07 millimeters | -15.4% |
| 1951 | -449.67 millimeters | +10.7% |
| 1952 | -348.33 millimeters | -22.5% |
| 1953 | -244.31 millimeters | -29.9% |
| 1954 | -212.05 millimeters | -13.2% |
| 1955 | -333.6 millimeters | +57.3% |
| 1956 | -301.5 millimeters | -9.6% |
| 1957 | -305.27 millimeters | +1.3% |
| 1958 | -135.89 millimeters | -55.5% |
| 1959 | -342.61 millimeters | +152.1% |
| 1960 | -183.04 millimeters | -46.6% |
| 1961 | -97.01 millimeters | -47.0% |
| 1962 | -202.37 millimeters | +108.6% |
| 1963 | -224.46 millimeters | +10.9% |
| 1964 | -206.86 millimeters | -7.8% |
| 1965 | -170.18 millimeters | -17.7% |
| 1966 | -115.87 millimeters | -31.9% |
| 1967 | -256.21 millimeters | +121.1% |
| 1968 | -183.58 millimeters | -28.3% |
| 1969 | -172.56 millimeters | -6.0% |
| 1970 | -264.78 millimeters | +53.4% |
| 1971 | -272.22 millimeters | +2.8% |
| 1972 | -215.1 millimeters | -21.0% |
| 1973 | -49.01 millimeters | -77.2% |
| 1974 | -148 millimeters | +202.0% |
| 1975 | -32.65 millimeters | -77.9% |
| 1976 | -78.91 millimeters | +141.7% |
| 1977 | -113.72 millimeters | +44.1% |
| 1978 | -143 millimeters | +25.7% |
| 1979 | -5.66 millimeters | -96.0% |
| 1980 | -30.77 millimeters | +443.7% |
| 1981 | -35.22 millimeters | +14.4% |
| 1982 | -55.53 millimeters | +57.7% |
| 1983 | -65.35 millimeters | +17.7% |
| 1984 | -102.84 millimeters | +57.4% |
| 1985 | -83.62 millimeters | -18.7% |
| 1986 | 68.93 millimeters | -182.4% |
| 1987 | -16.5 millimeters | -123.9% |
| 1988 | -96.1 millimeters | +482.3% |
| 1989 | 28.85 millimeters | -130.0% |
| 1990 | 20.91 millimeters | -27.5% |
| 1991 | 24.79 millimeters | +18.6% |
| 1992 | -8.17 millimeters | -132.9% |
| 1993 | 27.49 millimeters | -436.7% |
| 1994 | 27.69 millimeters | +0.7% |
| 1995 | 0.6835 millimeters | -97.5% |
| 1996 | -285.46 millimeters | -41862.2% |
| 1997 | -20.58 millimeters | -92.8% |
| 1998 | -34.21 millimeters | +66.3% |
| 1999 | -35.81 millimeters | +4.7% |
| 2000 | -12.88 millimeters | -64.0% |
| 2001 | -20.71 millimeters | +60.8% |
| 2002 | -13.93 millimeters | -32.8% |
| 2003 | 36.22 millimeters | -360.0% |
| 2004 | 61.51 millimeters | +69.8% |
| 2005 | -63.53 millimeters | -203.3% |
| 2006 | 42.96 millimeters | -167.6% |
| 2007 | -1.65 millimeters | -103.8% |
| 2008 | -12.6 millimeters | +664.7% |
| 2009 | -97.46 millimeters | +673.3% |
| 2010 | 90.82 millimeters | -193.2% |
| 2011 | -107.63 millimeters | -218.5% |
| 2012 | 173.04 millimeters | -260.8% |
| 2013 | 66.56 millimeters | -61.5% |
| 2014 | 25.3 millimeters | -62.0% |
| 2015 | -9.6 millimeters | -137.9% |
| 2016 | 5.39 millimeters | -156.1% |
| 2017 | -1.49 millimeters | -127.7% |
| 2018 | -6.96 millimeters | +366.3% |
| 2019 | 198.02 millimeters | -2943.1% |
| 2020 | -47.8 millimeters | -124.1% |
| 2021 | -0.9053 millimeters | -98.1% |
| 2022 | 11.13 millimeters | -1329.1% |
| 2023 | -33.62 millimeters | -402.1% |
| 2024 | -11.2 millimeters | -66.7% |
| 2025 | 29.5 millimeters | -363.4% |
Biggest year-on-year movements
Years where Precipitation anomalies in Heard Island and McDonald 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 |
|---|---|---|---|
| 1996 | -41862.2% | 0.6835 millimeters | -285.46 millimeters |
| 2019 | +2943.1% | -6.96 millimeters | 198.02 millimeters |
| 2022 | +1329.1% | -0.9053 millimeters | 11.13 millimeters |
| 1943 | -1040.8% | -13.33 millimeters | -152.04 millimeters |
| 2009 | -673.3% | -12.6 millimeters | -97.46 millimeters |
| 2008 | -664.7% | -1.65 millimeters | -12.6 millimeters |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | -130.75 millimeters | -480.03 millimeters | -13.33 millimeters | 10 |
| 1950s | -307.93 millimeters | -449.67 millimeters | -135.89 millimeters | 10 |
| 1960s | -181.21 millimeters | -256.21 millimeters | -97.01 millimeters | 10 |
| 1970s | -132.31 millimeters | -272.22 millimeters | -5.66 millimeters | 10 |
| 1980s | -38.82 millimeters | -102.84 millimeters | 68.93 millimeters | 10 |
| 1990s | -28.27 millimeters | -285.46 millimeters | 27.69 millimeters | 10 |
| 2000s | -8.21 millimeters | -97.46 millimeters | 61.51 millimeters | 10 |
| 2010s | 43.35 millimeters | -107.63 millimeters | 198.02 millimeters | 10 |
| 2020s | -8.82 millimeters | -47.8 millimeters | 29.5 millimeters | 6 |
Countries ranked near Heard Island and McDonald Islands
More climate change data for Heard Island and McDonald Islands
- Summer temperature anomalies 1.56 °C (2026)
- Spring temperature anomalies 0.8521 °C (2026)
- Temperature anomalies by month 0.876 °C (2026)
- Annual precipitation 1,377 millimeters (2025)
- Autumn temperature anomalies 0.9668 °C (2025)
- Winter temperature anomalies 0.8706 °C (2025)
- Precipitation anomalies, annual growth rate 363.4 % change on previous year (2025)
- Annual PM2.5 emissions from wildfires 0 tonnes (2026)
- Temperature anomalies vs. latitude 0.8308 °C (2025)
- Annual CO₂ emissions from wildfires 0 tonnes (2026)
Frequently asked questions
- What is precipitation anomalies in Heard Island and McDonald Islands?
- Precipitation anomalies in Heard Island and McDonald Islands was 29.5 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 Heard Island and McDonald Islands?
- The highest recorded value was 198.02 millimeters in 2019.
- What is the lowest precipitation anomalies recorded in Heard Island and McDonald Islands?
- The lowest recorded value was -480.03 millimeters in 1949.
- How does Heard Island and McDonald Islands rank for precipitation anomalies?
- Heard Island and McDonald Islands ranks 63rd out of 192 countries with data for 2025.
- Is precipitation anomalies rising or falling in Heard Island and McDonald Islands?
- Over the last ten years it is up 407.3%. The long-run trend across the full record is volatile.
- Where does this Heard Island and McDonald 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.