Country level monthly temperature anomalies in Heard Island and McDonald Islands
Heard Island and McDonald Islands: Country level monthly temperature anomalies was 0.876 in 2026. ◆ Volatile
Latest (2026)
0.876
Change on year
up 65.3%
World rank
46th
of 190 countries
All-time high
0.876
in 2026
All-time low
-0.8778
in 1946
Years of data
87
1940–2026
Country level monthly temperature anomalies in Heard Island and McDonald Islands, 1940–2026
Source: Our World in Data.
Analysis
Heard Island and McDonald Islands recorded 0.876 for country level monthly temperature anomalies in 2026. That is the highest value across all 87 years on record.
Compared with earlier readings it is up 65.3% on the previous year and up 376.3% over ten years.
Over the whole period, country level monthly temperature anomalies in Heard Island and McDonald Islands peaked at 0.876 in 2026 and was at its lowest, -0.8778, in 1946.
Heard Island and McDonald Islands ranks 46th of 190 countries on this measure, in the top quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Country level monthly temperature anomalies in Heard Island and McDonald Islands, year by year
| Year | Value | Change |
|---|---|---|
| 1940 | -0.5467 | — |
| 1941 | -0.2784 | -49.1% |
| 1942 | -0.0892 | -68.0% |
| 1943 | -0.0119 | -86.7% |
| 1944 | -0.494 | +4059.0% |
| 1945 | -0.3616 | -26.8% |
| 1946 | -0.8778 | +142.7% |
| 1947 | -0.2265 | -74.2% |
| 1948 | -0.4577 | +102.1% |
| 1949 | -0.4702 | +2.7% |
| 1950 | -0.7149 | +52.1% |
| 1951 | 0.5767 | -180.7% |
| 1952 | -0.3982 | -169.1% |
| 1953 | -0.045 | -88.7% |
| 1954 | -0.1728 | +284.3% |
| 1955 | -0.5459 | +216.0% |
| 1956 | -0.8232 | +50.8% |
| 1957 | -0.5706 | -30.7% |
| 1958 | -0.4079 | -28.5% |
| 1959 | 0.1242 | -130.4% |
| 1960 | -0.129 | -203.9% |
| 1961 | -0.5977 | +363.4% |
| 1962 | -0.162 | -72.9% |
| 1963 | -0.4451 | +174.7% |
| 1964 | -0.4276 | -3.9% |
| 1965 | -0.4542 | +6.2% |
| 1966 | -0.3059 | -32.6% |
| 1967 | -0.3987 | +30.3% |
| 1968 | -0.4723 | +18.5% |
| 1969 | -0.1086 | -77.0% |
| 1970 | 0.0124 | -111.4% |
| 1971 | -0.4059 | -3385.7% |
| 1972 | -0.7824 | +92.8% |
| 1973 | -0.3379 | -56.8% |
| 1974 | -0.811 | +140.0% |
| 1975 | -0.2969 | -63.4% |
| 1976 | -0.3402 | +14.6% |
| 1977 | -0.7215 | +112.1% |
| 1978 | -0.0006 | -99.9% |
| 1979 | 0.344 | -53187.4% |
| 1980 | 0.2023 | -41.2% |
| 1981 | -0.3067 | -251.6% |
| 1982 | 0.0102 | -103.3% |
| 1983 | 0.344 | +3287.0% |
| 1984 | -0.5631 | -263.7% |
| 1985 | -0.6025 | +7.0% |
| 1986 | -0.4667 | -22.5% |
| 1987 | -0.3495 | -25.1% |
| 1988 | -0.1502 | -57.0% |
| 1989 | -0.8271 | +450.6% |
| 1990 | -0.4746 | -42.6% |
| 1991 | 0.0286 | -106.0% |
| 1992 | 0.1088 | +280.5% |
| 1993 | -0.3844 | -453.3% |
| 1994 | 0.0974 | -125.3% |
| 1995 | -0.4504 | -562.3% |
| 1996 | -0.5617 | +24.7% |
| 1997 | 0.4592 | -181.7% |
| 1998 | 0.2496 | -45.6% |
| 1999 | -0.1259 | -150.4% |
| 2000 | -0.2324 | +84.6% |
| 2001 | -0.1296 | -44.3% |
| 2002 | 0.0145 | -111.2% |
| 2003 | 0.2027 | +1293.1% |
| 2004 | 0.379 | +87.0% |
| 2005 | -0.4511 | -219.0% |
| 2006 | -0.2811 | -37.7% |
| 2007 | -0.0896 | -68.1% |
| 2008 | -0.0439 | -51.0% |
| 2009 | -0.2199 | +400.6% |
| 2010 | 0.0858 | -139.0% |
| 2011 | -0.0166 | -119.3% |
| 2012 | 0.4709 | -2940.4% |
| 2013 | 0.4994 | +6.1% |
| 2014 | -0.6741 | -235.0% |
| 2015 | -0.4424 | -34.4% |
| 2016 | 0.1839 | -141.6% |
| 2017 | 0.2527 | +37.4% |
| 2018 | 0.4912 | +94.4% |
| 2019 | 0.267 | -45.6% |
| 2020 | 0.3123 | +17.0% |
| 2021 | -0.0047 | -101.5% |
| 2022 | -0.4388 | +9283.2% |
| 2023 | 0.3017 | -168.7% |
| 2024 | 0.0788 | -73.9% |
| 2025 | 0.5298 | +572.2% |
| 2026 | 0.876 | +65.3% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | -0.3814 | -0.8778 | -0.0119 | 10 |
| 1950s | -0.2978 | -0.8232 | 0.5767 | 10 |
| 1960s | -0.3501 | -0.5977 | -0.1086 | 10 |
| 1970s | -0.334 | -0.811 | 0.344 | 10 |
| 1980s | -0.2709 | -0.8271 | 0.344 | 10 |
| 1990s | -0.1053 | -0.5617 | 0.4592 | 10 |
| 2000s | -0.0851 | -0.4511 | 0.379 | 10 |
| 2010s | 0.1118 | -0.6741 | 0.4994 | 10 |
| 2020s | 0.2364 | -0.4388 | 0.876 | 7 |
Countries ranked near Heard Island and McDonald Islands
More reference data data for Heard Island and McDonald Islands
- Spring temperature anomalies 0.8521 (2026)
- Summer temperature anomalies 1.56 (2026)
- Average precipitation per year 1,377 (2025)
- Global precipitation anomaly 29.5 (2025)
- Winter temperature anomalies 0.8706 (2025)
- Autumn temperature anomalies 0.9668 (2025)
- Exposure to extreme temperature — Annual temperature change 0.729 Degrees celsius (2023)
- Exposure to extreme precipitation — Annual precipitation change -17.8 Millimetres per year (2023)
- Average annual surface temperature 2.45 (2025)
- Annual temperature anomalies 0.8308 (2025)
Frequently asked questions
- What is country level monthly temperature anomalies in Heard Island and McDonald Islands?
- Country level monthly temperature anomalies in Heard Island and McDonald Islands was 0.876 in 2026, according to Our World in Data.
- What is the highest country level monthly temperature anomalies recorded in Heard Island and McDonald Islands?
- The highest recorded value was 0.876 in 2026.
- What is the lowest country level monthly temperature anomalies recorded in Heard Island and McDonald Islands?
- The lowest recorded value was -0.8778 in 1946.
- How does Heard Island and McDonald Islands rank for country level monthly temperature anomalies?
- Heard Island and McDonald Islands ranks 46th out of 190 countries with data for 2026.
- Is country level monthly temperature anomalies rising or falling in Heard Island and McDonald Islands?
- Over the last ten years it is up 376.3%. 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 Our World in Data, published as part of Country level monthly temperature anomalies. Statizoid updates them automatically from the source API.
Download this data
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