Switzerland vs United States: Tropical nights

Tropical nights in 2014: 0.2 nights in Switzerland 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 170 times that in Switzerland.

Watch it change on the map

nights a year · CMIP6

SwitzerlandUnited 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 Switzerland at 3.8 nights and United States at 63.9 nights in 2100.

Every year

nights a year · CMIP6

Year	Switzerland	United States
2014	0.2	39.8
2013	0.1	38.9
2012	0.1	38.7
2011	0.1	38.4
2010	0.1	38.3
2009	0.1	37.5
2008	0.1	36.8
2007	0	37.7
2006	0	37.6
2005	0.1	36.8
2004	0.1	35.8
2003	0.1	36
2002	0.1	37.7
2001	0.1	36.7
2000	0	35.5
1999	0	36.1
1998	0	34.8
1997	0	35.1
1996	0	33.6
1995	0	33.6
1994	0	32.4
1993	0	30.9
1992	0	29.4
1991	0	33.7
1990	0	33.8
1989	0	32.9
1988	0	33
1987	0	32.1
1986	0	31.5
1985	0	32
1984	0	30.1
1983	0	28.4
1982	0	30.8
1981	0	32.9
1980	0	30.7
1979	0	32.1
1978	0	31.6
1977	0	31.6
1976	0	29.7
1975	0	31.1
1974	0	29.8
1973	0	29.9
1972	0	30.7
1971	0	30
1970	0	29.7
1969	0	30.4
1968	0	29.5
1967	0	29.7
1966	0	29.1
1965	0	28.6
1964	0	28.1
1963	0	30
1962	0	30.8
1961	0	31.9
1960	0	31.1
1959	0	31
1958	0	30.6
1957	0	31
1956	0	32
1955	0	30.7
1954	0	30.8
1953	0	31.3
1952	0	30.6
1951	0	30.7
1950	0	30.5

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

Year	Switzerland	United States
2015	0.10–1.1	40.932.9–49.8
2016	0.20–1.3	41.933.3–52
2017	0.20–1.5	4234–50.6
2018	0.10–1.3	4333.9–52.5
2019	0.30–1.4	43.234.3–52.6
2020	0.10–1.4	42.833.9–53.1
2021	0.30–2.2	42.833.8–52.7
2022	0.30–2.1	43.634.5–52.3
2023	0.30–1.9	44.535–55.5
2024	0.40–1.5	44.935.9–54.5
2025	0.40–1.9	4636.7–55.5
2026	0.50–1.9	44.735.6–54.8
2027	0.30–1.6	46.437.3–58.4
2028	0.50–1.9	45.836.5–56.6
2029	0.80–2.2	46.936.9–57.7
2030	0.30–2.4	46.936.6–58.8
2031	0.40–1.4	46.337–55.7
2032	0.60.1–2.4	46.236.9–56.5
2033	0.60–3.2	49.439.1–60.3
2034	0.70.1–3.3	47.738.7–58.6
2035	0.70.1–2.4	47.737.5–59.6
2036	0.80–2.7	49.439.2–61.8
2037	0.60.1–2.7	48.639.1–59.8
2038	0.80–2.9	50.240.4–59.8
2039	0.90–2.6	50.240.5–60.9
2040	0.90–2.6	50.739.8–61.8
2041	10–2.9	49.840.1–61.2
2042	0.80.1–2.8	51.441–63.1
2043	10.1–2.7	51.341.4–62.2
2044	0.80.1–3.3	51.340.5–63.3
2045	1.20–3.5	52.441.5–64.7
2046	1.20.2–3.8	53.343.3–64.1
2047	1.50.1–3.8	53.844.1–66.5
2048	10.1–4.6	53.542.2–66
2049	1.60.1–4.2	53.743.2–65.9
2050	1.20.3–3.5	54.943–67.2
2051	10–4	54.743.5–67.5
2052	1.40.1–3.9	53.642–66.1
2053	0.80.1–3.8	54.342.4–66.8
2054	1.40.2–3.5	54.543.1–67
2055	1.30.1–3.4	55.142.4–68
2056	1.40.2–6.5	55.844.3–70
2057	1.70.2–3.7	56.244.6–68.1
2058	2.10.2–5.5	56.144.4–70.4
2059	1.80.1–7.1	55.544.5–67.9
2060	1.60.4–5.6	56.144.9–68.3
2061	1.90.1–4.9	5746–69
2062	2.30.3–5	57.443.9–70.3
2063	2.20.2–5.9	57.244.7–70.8
2064	20.3–5	5643–68.2
2065	20.1–7.4	56.544.2–71
2066	20.3–5.5	58.747.4–71.2
2067	3.80.8–10	58.647.2–71.4
2068	2.20.2–4.9	58.846.1–71.7
2069	2.60.7–5.9	59.646.8–73
2070	2.60.3–7.1	57.944.7–72.8
2071	2.90.1–7.8	5946.5–72
2072	2.91.2–6.5	58.746.4–72.9
2073	20.3–7	59.345.8–72.1
2074	1.70.2–7.6	60.546.4–74.6
2075	2.40.4–7.7	59.846.6–75.3
2076	2.80.5–10.6	59.647.5–74.4
2077	2.40.5–8.8	60.147.9–74.3
2078	2.20.3–8.1	60.747–76
2079	2.60.4–8.5	61.148.3–76.2
2080	2.90.3–6.6	61.448.8–76.8
2081	2.90.5–8.3	6149.2–74.7
2082	3.30.4–8.9	61.748.1–75.9
2083	2.50.5–7.9	62.849.6–77.6
2084	2.60.6–6.1	62.248.1–76.8
2085	30.9–7.7	6247.9–76
2086	3.40.7–8.7	6449–78.8
2087	4.10.5–10.4	63.349.5–77.3
2088	3.60.8–11.7	63.148.2–78.4
2089	3.61.1–9	61.648.8–76.6
2090	3.60.6–9.5	64.950.6–79
2091	40.7–9.8	64.750–78.6
2092	3.10.2–9.4	6448.1–79
2093	2.70.7–7.8	64.350.1–80.2
2094	4.21.2–9.2	63.248.2–78.9
2095	3.90.2–11.4	64.149.8–79.8
2096	3.10.2–10	6549.9–79.6
2097	2.80.2–10.3	63.347.3–81.2
2098	3.80.7–10.2	64.349.7–79.2
2099	3.90.4–10.7	64.350.3–79.5
2100	3.80.8–11.7	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

Switzerland vs United States: Tropical nights

What the numbers say

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