Niger vs Zambia: Tropical nights

Tropical nights in 2014: 221.6 nights in Niger and 62.9 nights in Zambia, in the CMIP6 climate models’ median run. In 2014 the value was higher in Niger, by 158.7 nights, or 3.52 times that in Zambia.

Watch it change on the map

nights a year · CMIP6

NigerZambiaCMIP6 model median (SSP2-4.5, middle of the road)models’ 10th–90th percentile

What the numbers say

Niger has been higher in every year both have figures for since 1950.
The CMIP6 model median (SSP2-4.5, middle of the road) puts Niger at 251.1 nights and Zambia at 171.5 nights in 2100.

Every year

nights a year · CMIP6

Year	Niger	Zambia
2014	221.6	62.9
2013	216.1	64.7
2012	220.8	63.9
2011	220.1	61.5
2010	219.1	59.3
2009	217.2	57.5
2008	216.8	56
2007	216.9	55.1
2006	214.3	55.9
2005	213.6	54.5
2004	213.6	58.4
2003	215.5	56.6
2002	214.6	55
2001	213.4	59
2000	211.2	52.9
1999	210.4	48
1998	207.7	51.3
1997	211.5	47.8
1996	208.6	43.5
1995	208.3	43.9
1994	207.8	41.6
1993	202.6	35.3
1992	203.4	36
1991	209.4	42.7
1990	208.1	46.4
1989	206	45
1988	203	43.6
1987	204.9	44
1986	206.8	43.8
1985	203.9	38.7
1984	201.8	38.7
1983	200.5	38.8
1982	201.9	40
1981	204.3	41.7
1980	200.6	39.7
1979	200.5	40.7
1978	202	38.9
1977	203.8	40
1976	201.7	35.7
1975	199	37.1
1974	200.6	37.4
1973	202.6	38.8
1972	200.7	35
1971	200.8	36
1970	199.8	38.1
1969	196.1	37.1
1968	200.3	34.1
1967	196.6	32.2
1966	198.2	33.1
1965	199	34.9
1964	199.2	31.3
1963	196.7	30.5
1962	201.1	38.8
1961	198.2	37
1960	203.2	39.3
1959	201.6	38.3
1958	199.2	39
1957	201.1	37.8
1956	199.6	34.6
1955	199.7	38.2
1954	201.1	38
1953	196.5	35.4
1952	197.9	37.6
1951	199.8	36.9
1950	200.8	36

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

Year	Niger	Zambia
2015	218.8202.8–235.8	72.150.1–93.9
2016	217.7201.8–230.6	66.845.9–85.7
2017	222.4205.2–237.4	71.449.7–92.5
2018	220.5206.3–238.8	73.852.7–94.8
2019	219.1201.8–238.1	73.354–97.6
2020	220.9206.9–234.7	77.556.9–100.4
2021	222.8208.2–240.2	76.755.7–104.5
2022	226.3209.7–239.2	84.861.6–109.7
2023	223.2206.6–238.4	84.763–108
2024	228.4214.3–242.9	85.158.2–113.9
2025	226.7211.2–241	84.957.1–116
2026	226.3210–243.1	83.658.4–119.4
2027	228.5209.9–241.1	89.562.5–115.7
2028	227.1211.9–240.2	89.965–118.6
2029	230.4213.3–247.1	9669.8–122.8
2030	226.4211.6–242.2	9166.7–118.1
2031	230.1210.8–247.1	97.668.2–121.3
2032	228.7212.3–241	94.970.3–122.2
2033	229.9214.9–245.4	98.270.1–123.6
2034	229.5212.1–244.9	97.370.4–135.2
2035	232.3217.5–248	104.168.4–137.8
2036	230.2213.7–244.6	99.568.7–131.5
2037	233.2215.1–246.5	107.177.4–139.8
2038	234.3218.2–249.7	110.383.2–138.8
2039	231214.2–247.1	101.874.3–139.1
2040	230.8214.8–247.5	100.872.5–145.3
2041	232.6218.6–252.9	113.978.7–147.6
2042	233.8216.2–250.5	111.379.1–155.1
2043	232.5217.8–245.8	106.678.3–150.6
2044	233.8218.2–250.1	110.574.3–145.5
2045	233.6218.1–249.7	109.882.2–148.2
2046	234.3217–250.2	119.485.9–160
2047	238.4224.3–253.1	123.191.1–159.4
2048	238221.4–254	124.590.6–160.2
2049	237.7217.4–253	124.586.1–167.1
2050	238.2220.7–254.5	130.592–166
2051	236.3220.6–254.7	128.498.1–169.8
2052	239.5224.3–255.8	130.798.6–170.4
2053	236.3223.9–255.6	128.488–168.8
2054	239.4220.2–257.9	132.193–169.6
2055	238.6223.7–254.7	132.1100.1–176.1
2056	239214.7–260.3	132.492.7–179.6
2057	240.4223–256.3	133.298.5–178.5
2058	238.2220.2–255.7	137.299.2–179.7
2059	243.9224.6–262.7	139.8105.8–189.5
2060	239.8222.6–260	145.4102.9–191
2061	242.5224.9–258.5	136.692.8–196.9
2062	241.6222.4–259.8	143.9101–194.7
2063	241.3220.9–255.2	144.5101.7–187.8
2064	244.4225.9–259.5	147.998.4–180.9
2065	242.8226.5–262.4	148.6104.3–199.8
2066	245.6227–263.5	152.1109.4–193.6
2067	240.7224.9–262	140.6103.2–195.7
2068	244224.3–265.4	150.8105.7–200.3
2069	243.9225.5–261.6	150.5106.3–197
2070	243.1225.6–261.3	145.8104.7–202.4
2071	246.1230.3–264	153.1112.7–212
2072	247.9229.9–263.7	157.2120–195.7
2073	243.4225.4–262.8	161.5115.2–210.9
2074	243.2224.4–264.6	149.2115–198.7
2075	244.3230.2–263.3	148.2111.5–202.2
2076	246.5228.5–266.6	150.4112–201.9
2077	250.1232.3–267.4	156.5120.3–208.3
2078	249.2230.8–264.5	157.2122.2–209.5
2079	244.4228.7–263.8	156.8118.1–207.3
2080	248.8230.4–267	159.8116–211.9
2081	247227.8–268.1	160.2117.1–208.6
2082	247230.6–264.4	159.6119.6–200.6
2083	247.3230.7–267.5	159.5110.7–219.9
2084	247.7229.4–265.2	166124.3–210.3
2085	248.9227–264.2	172.9126.8–221.1
2086	250.4230.9–269.5	161.9120.6–224.1
2087	245.8226.2–266.9	158.3129.2–219.6
2088	248.3226.7–271.1	168.4123.9–218.5
2089	251.9232.5–269.5	168.5129.9–217.9
2090	249.7227.7–267.4	165.7124–223.8
2091	248.9230.5–272.2	177.4129.5–227.2
2092	251229.8–274	170.6127.8–221.5
2093	249.9234.8–267	173.6123.6–223.3
2094	252.2234–267.5	171.4130.3–220.7
2095	251.1233–270.7	179131.6–228.6
2096	250.8234.8–270.4	170.8124.8–233.3
2097	250.2227.8–270.8	167.2122.2–224.3
2098	250.1228.1–268.5	172.5131.9–226.9
2099	251.9232.2–268.2	171.7126.5–229.1
2100	251.1234.5–271.5	171.5124.3–228

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

Niger vs Zambia: Tropical nights

What the numbers say

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