Global Temperature Anomaly (1850–2024)
Annual global mean temperature anomalies from GCAG and GISTEMP, spanning 1850 to 2024, showing a 1.6°C rise in 175 years.
| # | Source | Year | Mean |
|---|---|---|---|
| 1 | gcag | 1850 | -0.4177 |
| 2 | gcag | 1851 | -0.2333 |
| 3 | gcag | 1852 | -0.2294 |
| 4 | gcag | 1853 | -0.2704 |
| 5 | gcag | 1854 | -0.2915 |
| 6 | gcag | 1855 | -0.2969 |
| 7 | gcag | 1856 | -0.3204 |
| 8 | gcag | 1857 | -0.4672 |
| 9 | gcag | 1858 | -0.3888 |
| 10 | gcag | 1859 | -0.2813 |
| 11 | gcag | 1860 | -0.3902 |
| 12 | gcag | 1861 | -0.4291 |
| 13 | gcag | 1862 | -0.5364 |
| 14 | gcag | 1863 | -0.3442 |
| 15 | gcag | 1864 | -0.4655 |
| 16 | gcag | 1865 | -0.3325 |
| 17 | gcag | 1866 | -0.3413 |
| 18 | gcag | 1867 | -0.357 |
| 19 | gcag | 1868 | -0.3518 |
| 20 | gcag | 1869 | -0.3166 |
| 21 | gcag | 1870 | -0.3279 |
| 22 | gcag | 1871 | -0.3686 |
| 23 | gcag | 1872 | -0.3281 |
| 24 | gcag | 1873 | -0.3413 |
| 25 | gcag | 1874 | -0.3733 |
| 26 | gcag | 1875 | -0.3756 |
| 27 | gcag | 1876 | -0.4241 |
| 28 | gcag | 1877 | -0.1011 |
| 29 | gcag | 1878 | -0.0113 |
| 30 | gcag | 1879 | -0.3036 |
| 31 | GISTEMP | 1880 | -0.1725 |
| 32 | gcag | 1880 | -0.3158 |
| 33 | GISTEMP | 1881 | -0.0883 |
| 34 | gcag | 1881 | -0.2322 |
| 35 | GISTEMP | 1882 | -0.1067 |
| 36 | gcag | 1882 | -0.2955 |
| 37 | GISTEMP | 1883 | -0.1742 |
| 38 | gcag | 1883 | -0.3465 |
| 39 | GISTEMP | 1884 | -0.2808 |
| 40 | gcag | 1884 | -0.4923 |
| 41 | GISTEMP | 1885 | -0.3317 |
| 42 | gcag | 1885 | -0.4711 |
| 43 | GISTEMP | 1886 | -0.3158 |
| 44 | gcag | 1886 | -0.4209 |
| 45 | GISTEMP | 1887 | -0.3667 |
| 46 | gcag | 1887 | -0.4988 |
| 47 | GISTEMP | 1888 | -0.1758 |
| 48 | gcag | 1888 | -0.3794 |
| 49 | GISTEMP | 1889 | -0.1092 |
| 50 | gcag | 1889 | -0.2499 |
| 51 | GISTEMP | 1890 | -0.3558 |
| 52 | gcag | 1890 | -0.5069 |
| 53 | GISTEMP | 1891 | -0.2292 |
| 54 | gcag | 1891 | -0.4013 |
| 55 | GISTEMP | 1892 | -0.28 |
| 56 | gcag | 1892 | -0.5076 |
| 57 | GISTEMP | 1893 | -0.3192 |
| 58 | gcag | 1893 | -0.4946 |
| 59 | GISTEMP | 1894 | -0.3108 |
| 60 | gcag | 1894 | -0.4838 |
| 61 | GISTEMP | 1895 | -0.2392 |
| 62 | gcag | 1895 | -0.4488 |
| 63 | GISTEMP | 1896 | -0.12 |
| 64 | gcag | 1896 | -0.284 |
| 65 | GISTEMP | 1897 | -0.1175 |
| 66 | gcag | 1897 | -0.2598 |
| 67 | GISTEMP | 1898 | -0.2825 |
| 68 | gcag | 1898 | -0.4858 |
| 69 | GISTEMP | 1899 | -0.1825 |
| 70 | gcag | 1899 | -0.3554 |
| 71 | GISTEMP | 1900 | -0.0867 |
| 72 | gcag | 1900 | -0.2345 |
| 73 | GISTEMP | 1901 | -0.16 |
| 74 | gcag | 1901 | -0.2934 |
| 75 | GISTEMP | 1902 | -0.2858 |
| 76 | gcag | 1902 | -0.439 |
| 77 | GISTEMP | 1903 | -0.3767 |
| 78 | gcag | 1903 | -0.5333 |
| 79 | GISTEMP | 1904 | -0.4775 |
| 80 | gcag | 1904 | -0.5975 |
| 81 | GISTEMP | 1905 | -0.2683 |
| 82 | gcag | 1905 | -0.4078 |
| 83 | GISTEMP | 1906 | -0.2292 |
| 84 | gcag | 1906 | -0.3191 |
| 85 | GISTEMP | 1907 | -0.3933 |
| 86 | gcag | 1907 | -0.5041 |
| 87 | GISTEMP | 1908 | -0.43 |
| 88 | gcag | 1908 | -0.5138 |
| 89 | GISTEMP | 1909 | -0.4867 |
| 90 | gcag | 1909 | -0.5357 |
| 91 | GISTEMP | 1910 | -0.4408 |
| 92 | gcag | 1910 | -0.5309 |
| 93 | GISTEMP | 1911 | -0.45 |
| 94 | gcag | 1911 | -0.5391 |
| 95 | GISTEMP | 1912 | -0.3675 |
| 96 | gcag | 1912 | -0.4755 |
| 97 | GISTEMP | 1913 | -0.3492 |
| 98 | gcag | 1913 | -0.467 |
| 99 | GISTEMP | 1914 | -0.1567 |
| 100 | gcag | 1914 | -0.2624 |
1–100 of 319
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Global Temperature Anomaly (1850–2024) — Analysis
Key Findings
- Global temperature anomaly rose from -0.42°C (1850s avg) to +1.18°C (2024), a total swing of ~1.6°C
- The world first crossed the 0°C anomaly threshold in 1940, but sustained positive anomalies didn't begin until the 1980s
- Every decade since the 1970s has been warmer than the one before it — the longest sustained warming streak in the record
- The two independent sources (GCAG and GISTEMP) agree closely, with a mean absolute difference of just 0.03°C
- 2023 and 2024 both exceeded +1.1°C, a sharp jump from the prior decade's average of +0.74°C
Visualizations
10 Hottest Years on Record
Warming Acceleration Since 1975
Average Anomaly by Decade
Global Temperature Anomaly (1850–2024)