United Kingdom vs United States: Tropical nights

Tropical nights in 2014: 0.2 nights in United Kingdom and 39.8 nights in United States, in the CMIP6 climate models’ median run. In 2014 the value was higher in United States, by 39.6 nights, or 250 times that in United Kingdom.

Watch it change on the map

nights a year · CMIP6

United KingdomUnited StatesCMIP6 model median (SSP2-4.5, middle of the road)models’ 10th–90th percentile

What the numbers say

United States has been higher in every year both have figures for since 1950.
The CMIP6 model median (SSP2-4.5, middle of the road) puts United Kingdom at 0.4 nights and United States at 63.9 nights in 2100.

Every year

nights a year · CMIP6

Year	United Kingdom	United States
2014	0.2	39.8
2013	0.2	38.9
2012	0.2	38.7
2011	0.2	38.4
2010	0.2	38.3
2009	0.2	37.5
2008	0.2	36.8
2007	0.2	37.7
2006	0.2	37.6
2005	0.2	36.8
2004	0.2	35.8
2003	0.2	36
2002	0.2	37.7
2001	0.2	36.7
2000	0.2	35.5
1999	0.2	36.1
1998	0.2	34.8
1997	0.2	35.1
1996	0.2	33.6
1995	0.1	33.6
1994	0.2	32.4
1993	0.1	30.9
1992	0.2	29.4
1991	0.2	33.7
1990	0.2	33.8
1989	0.2	32.9
1988	0.1	33
1987	0.2	32.1
1986	0.2	31.5
1985	0.1	32
1984	0.1	30.1
1983	0.1	28.4
1982	0.1	30.8
1981	0.1	32.9
1980	0.1	30.7
1979	0.1	32.1
1978	0.1	31.6
1977	0.1	31.6
1976	0.1	29.7
1975	0.1	31.1
1974	0.1	29.8
1973	0.1	29.9
1972	0.1	30.7
1971	0.1	30
1970	0.1	29.7
1969	0.1	30.4
1968	0.1	29.5
1967	0.1	29.7
1966	0.1	29.1
1965	0.1	28.6
1964	0.1	28.1
1963	0.1	30
1962	0.2	30.8
1961	0.1	31.9
1960	0.1	31.1
1959	0.1	31
1958	0.1	30.6
1957	0.2	31
1956	0.2	32
1955	0.2	30.7
1954	0.1	30.8
1953	0.1	31.3
1952	0.1	30.6
1951	0.1	30.7
1950	0.1	30.5

CMIP6 model median (SSP2-4.5, middle of the road) · 2015–2100

Year	United Kingdom	United States
2015	0.20.2–0.3	40.932.9–49.8
2016	0.20.2–0.4	41.933.3–52
2017	0.20.2–0.4	4234–50.6
2018	0.20.2–0.3	4333.9–52.5
2019	0.20.1–0.2	43.234.3–52.6
2020	0.20.2–0.3	42.833.9–53.1
2021	0.20.1–0.4	42.833.8–52.7
2022	0.20.2–0.3	43.634.5–52.3
2023	0.20.2–0.4	44.535–55.5
2024	0.20.2–0.3	44.935.9–54.5
2025	0.20.2–0.4	4636.7–55.5
2026	0.20.2–0.4	44.735.6–54.8
2027	0.20.2–0.3	46.437.3–58.4
2028	0.20.2–0.3	45.836.5–56.6
2029	0.20.2–0.3	46.936.9–57.7
2030	0.20.2–0.3	46.936.6–58.8
2031	0.20.2–0.4	46.337–55.7
2032	0.20.2–0.4	46.236.9–56.5
2033	0.20.2–0.4	49.439.1–60.3
2034	0.20.2–0.9	47.738.7–58.6
2035	0.20.2–0.6	47.737.5–59.6
2036	0.20.2–0.5	49.439.2–61.8
2037	0.20.2–0.4	48.639.1–59.8
2038	0.20.2–0.5	50.240.4–59.8
2039	0.20.2–0.5	50.240.5–60.9
2040	0.20.2–0.5	50.739.8–61.8
2041	0.20.2–0.4	49.840.1–61.2
2042	0.20.2–0.6	51.441–63.1
2043	0.20.2–0.6	51.341.4–62.2
2044	0.20.2–0.7	51.340.5–63.3
2045	0.20.2–0.6	52.441.5–64.7
2046	0.20.2–0.6	53.343.3–64.1
2047	0.20.2–0.8	53.844.1–66.5
2048	0.20.2–0.8	53.542.2–66
2049	0.20.2–1.1	53.743.2–65.9
2050	0.20.2–0.7	54.943–67.2
2051	0.20.2–0.7	54.743.5–67.5
2052	0.20.2–1.1	53.642–66.1
2053	0.20.2–0.9	54.342.4–66.8
2054	0.20.2–1.3	54.543.1–67
2055	0.20.2–1	55.142.4–68
2056	0.20.2–0.6	55.844.3–70
2057	0.20.2–1	56.244.6–68.1
2058	0.30.2–1.3	56.144.4–70.4
2059	0.20.2–0.9	55.544.5–67.9
2060	0.20.2–1	56.144.9–68.3
2061	0.20.2–1	5746–69
2062	0.40.2–1.4	57.443.9–70.3
2063	0.20.2–1.4	57.244.7–70.8
2064	0.20.2–0.7	5643–68.2
2065	0.20.2–2	56.544.2–71
2066	0.20.2–0.8	58.747.4–71.2
2067	0.40.2–2	58.647.2–71.4
2068	0.20.2–0.8	58.846.1–71.7
2069	0.30.2–1.3	59.646.8–73
2070	0.30.2–1.7	57.944.7–72.8
2071	0.30.2–1.5	5946.5–72
2072	0.30.2–0.9	58.746.4–72.9
2073	0.30.2–2.2	59.345.8–72.1
2074	0.30.2–1.9	60.546.4–74.6
2075	0.30.2–1.4	59.846.6–75.3
2076	0.30.2–2.2	59.647.5–74.4
2077	0.20.2–2.2	60.147.9–74.3
2078	0.50.2–2.2	60.747–76
2079	0.20.2–1.4	61.148.3–76.2
2080	0.20.2–1.6	61.448.8–76.8
2081	0.30.2–1.7	6149.2–74.7
2082	0.30.2–2.6	61.748.1–75.9
2083	0.40.2–1.9	62.849.6–77.6
2084	0.20.2–1.6	62.248.1–76.8
2085	0.30.2–1.9	6247.9–76
2086	0.30.2–2.6	6449–78.8
2087	0.50.2–4	63.349.5–77.3
2088	0.30.2–2.1	63.148.2–78.4
2089	0.40.2–1.7	61.648.8–76.6
2090	0.30.2–2.1	64.950.6–79
2091	0.40.2–2.2	64.750–78.6
2092	0.60.2–2.2	6448.1–79
2093	0.30.2–1.7	64.350.1–80.2
2094	0.40.2–1.9	63.248.2–78.9
2095	0.50.2–2.7	64.149.8–79.8
2096	0.40.2–4	6549.9–79.6
2097	0.30.2–2.9	63.347.3–81.2
2098	0.40.2–3	64.349.7–79.2
2099	0.40.2–2.5	64.350.3–79.5
2100	0.40.2–1.9	63.950.3–80.2

Each country on its own

Good to know

Nights in a year when the temperature stays above 20 °C, averaged over the country.
Source: World Bank Climate Change Knowledge Portal, CMIP6 multi-model median.
The dashed line is the CMIP6 model median (SSP2-4.5, middle of the road), a scenario rather than a forecast; the band is its models’ 10th–90th percentile.
Climate model values are the median of the CMIP6 models, run on past emissions to 2014 and on SSP2-4.5, a middle-of-the-road path, after: they are not measurements.

How the layers work, where their data comes from and what they can’t tell you: Countries through time