United States vs Vietnam: Tropical nights

Tropical nights in 2014: 39.8 nights in United States and 242.6 nights in Vietnam, in the CMIP6 climate models’ median run. In 2014 the value was higher in Vietnam, by 202.8 nights, or 6.1 times that in United States.

Watch it change on the map

nights a year · CMIP6

United StatesVietnamCMIP6 model median (SSP2-4.5, middle of the road)models’ 10th–90th percentile

What the numbers say

Vietnam 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 States at 63.9 nights and Vietnam at 282.7 nights in 2100.

Every year

nights a year · CMIP6

Year	United States	Vietnam
2014	39.8	242.6
2013	38.9	243.6
2012	38.7	242.4
2011	38.4	241.9
2010	38.3	240.9
2009	37.5	240
2008	36.8	238.7
2007	37.7	238
2006	37.6	239.1
2005	36.8	238.3
2004	35.8	241.8
2003	36	235.9
2002	37.7	236.3
2001	36.7	241.3
2000	35.5	237
1999	36.1	236
1998	34.8	236.8
1997	35.1	237.1
1996	33.6	231.4
1995	33.6	229.9
1994	32.4	231.2
1993	30.9	225.3
1992	29.4	221.9
1991	33.7	229.8
1990	33.8	233.1
1989	32.9	229.2
1988	33	231.7
1987	32.1	230.3
1986	31.5	230.9
1985	32	228
1984	30.1	230.2
1983	28.4	224.9
1982	30.8	227.5
1981	32.9	229.7
1980	30.7	228.1
1979	32.1	228.9
1978	31.6	227.5
1977	31.6	229
1976	29.7	225.8
1975	31.1	225.8
1974	29.8	225.7
1973	29.9	230.3
1972	30.7	225.6
1971	30	225.5
1970	29.7	226.1
1969	30.4	227
1968	29.5	227.1
1967	29.7	222.9
1966	29.1	226.8
1965	28.6	225.4
1964	28.1	222.6
1963	30	224.3
1962	30.8	227.8
1961	31.9	229.4
1960	31.1	228.5
1959	31	226.2
1958	30.6	230.9
1957	31	228.4
1956	32	228.7
1955	30.7	227.5
1954	30.8	226.3
1953	31.3	228.2
1952	30.6	228.5
1951	30.7	229.2
1950	30.5	228.9

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

Year	United States	Vietnam
2015	40.932.9–49.8	245.8228.2–261.9
2016	41.933.3–52	243.7226.1–259.4
2017	4234–50.6	247229.6–260.7
2018	4333.9–52.5	248.3228.8–263.3
2019	43.234.3–52.6	248.1229.2–262.8
2020	42.833.9–53.1	248.8229.6–262.9
2021	42.833.8–52.7	251.1233.1–266.7
2022	43.634.5–52.3	252.4234.3–266.8
2023	44.535–55.5	253.4235.4–266.6
2024	44.935.9–54.5	251.3236.7–264.6
2025	4636.7–55.5	252.4234.1–266.2
2026	44.735.6–54.8	252.8232.9–268.5
2027	46.437.3–58.4	253.2237–268.8
2028	45.836.5–56.6	254.3237.7–272
2029	46.936.9–57.7	258.1238.5–273.7
2030	46.936.6–58.8	256.4240.9–270.1
2031	46.337–55.7	255.9241.2–270.9
2032	46.236.9–56.5	257.4239.1–269.9
2033	49.439.1–60.3	258.3241.7–273.2
2034	47.738.7–58.6	258.8240.7–275.8
2035	47.737.5–59.6	258.6242.5–275.4
2036	49.439.2–61.8	258.3239.1–273.8
2037	48.639.1–59.8	258.7242.4–272.4
2038	50.240.4–59.8	263.4247.6–277.3
2039	50.240.5–60.9	260.2243.7–275.9
2040	50.739.8–61.8	260.1242.8–274.8
2041	49.840.1–61.2	263.1245.9–279
2042	51.441–63.1	263.6246.5–279
2043	51.341.4–62.2	261.4245.5–279.6
2044	51.340.5–63.3	263.2245.2–277.6
2045	52.441.5–64.7	265.5249.6–281.4
2046	53.343.3–64.1	264.9246.8–278.1
2047	53.844.1–66.5	266.9250.4–282.9
2048	53.542.2–66	268250.5–283.8
2049	53.743.2–65.9	267.8251.2–284.8
2050	54.943–67.2	268251.2–283.5
2051	54.743.5–67.5	270.9254.3–285.4
2052	53.642–66.1	268.3253.3–282.8
2053	54.342.4–66.8	268.5250.1–283.2
2054	54.543.1–67	269.1250.8–283.6
2055	55.142.4–68	270249.8–284.2
2056	55.844.3–70	271.7254.8–290.1
2057	56.244.6–68.1	270253–285.7
2058	56.144.4–70.4	270.7252.9–286.5
2059	55.544.5–67.9	273257.6–286.6
2060	56.144.9–68.3	275.7255.6–290.6
2061	5746–69	273.5254.6–289.5
2062	57.443.9–70.3	271.4253.1–290.2
2063	57.244.7–70.8	272.9252.7–288.1
2064	5643–68.2	273.8254.4–288.1
2065	56.544.2–71	272255.8–286.3
2066	58.747.4–71.2	271.8254.4–287.3
2067	58.647.2–71.4	270.8252.1–287.6
2068	58.846.1–71.7	275.6256.9–292.4
2069	59.646.8–73	276.4258.5–292
2070	57.944.7–72.8	274.6257.8–292.8
2071	5946.5–72	276.2255.2–294.1
2072	58.746.4–72.9	277256.8–291.4
2073	59.345.8–72.1	278.5262.7–293.4
2074	60.546.4–74.6	277.6259.2–295.8
2075	59.846.6–75.3	276.4258.7–294.4
2076	59.647.5–74.4	279.2258.5–296.6
2077	60.147.9–74.3	280264.9–294.7
2078	60.747–76	278.4258.6–295.5
2079	61.148.3–76.2	279.3263.4–293.6
2080	61.448.8–76.8	280261.4–296.5
2081	6149.2–74.7	280.4261.2–297.9
2082	61.748.1–75.9	280.9258.9–296
2083	62.849.6–77.6	278.4261.6–295
2084	62.248.1–76.8	279257.4–293.8
2085	6247.9–76	281.3265–297.8
2086	6449–78.8	282.3260.2–297.5
2087	63.349.5–77.3	281.9261.3–300.7
2088	63.148.2–78.4	283.1265.7–301.5
2089	61.648.8–76.6	280.8261.2–301.6
2090	64.950.6–79	280.5264.5–297.6
2091	64.750–78.6	283.3264.3–298.9
2092	6448.1–79	281.1261.5–299.4
2093	64.350.1–80.2	280.5263.4–296.1
2094	63.248.2–78.9	283264.5–300
2095	64.149.8–79.8	285.5264.5–302.9
2096	6549.9–79.6	281.8264.8–299.8
2097	63.347.3–81.2	281.5263.3–299
2098	64.349.7–79.2	282.5263.9–301.5
2099	64.350.3–79.5	282.7265.1–298
2100	63.950.3–80.2	282.7261–298.2

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