Niamey Aero Threshold Days by Year (NG000001052)

13 fixed thresholds counted per year at Niamey Aero (NG000001052): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Niamey Aero Thresholds

Niamey Aero: days with a maximum temperature at or above 30 C (86 F) in 43 years, most in 1941 with 360.
Niamey Aero: days with a maximum temperature at or above 35 C (95 F) in 43 years, most in 1941 with 319.
Niamey Aero: days with a maximum temperature at or above 40 C (104 F) in 43 years, most in 1941 with 147.
Niamey Aero: days with a maximum temperature at or above 90 F (32.2 C) in 43 years, most in 1941 with 350.
13 fixed thresholds have at least one qualifying day at Niamey Aero.

Days at or above 30 C (86 F)

43 years with a qualifying day

Days per year at Niamey Aero with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 360 in 1941.

Days at or above 30 C (86 F) per year at Niamey Aero
Year	Days	Decade average
1941	360	348
1942	348	348
1943	347	348
1944	343	348
1945	341	348
1946	350	348
1947	352	348
1948	345	348
1949	346	348
1950	346	343.3
1951	359	343.3
1952	344	343.3
1953	334	343.3
1954	344	343.3
1955	345	343.3
1956	349	343.3
1957	339	343.3
1958	347	343.3
1959	326	343.3
1960	345	340.4
1961	339	340.4
1962	345	340.4
1963	355	340.4
1964	340	340.4
1965	315	340.4
1967	320	340.4
1968	356	340.4
1969	349	340.4
1970	349	345.1
1971	346	345.1
1972	360	345.1
1973	358	345.1
1974	327	345.1
1975	329	345.1
1976	345	345.1
1977	340	345.1
1978	347	345.1
1979	350	345.1
1980	345	345
1993	308	318.3
1995	319	318.3
1996	328	318.3
2025	167	167

For each year, a bar from the first to the last day at Niamey Aero meeting 30 C (86 F).

First to last qualifying date each year at Niamey Aero
Year	First date	Last date
1941	1941-01-02	1941-12-31
1942	1942-01-01	1942-12-31
1943	1943-01-01	1943-12-31
1944	1944-01-01	1944-12-31
1945	1945-01-01	1945-12-31
1946	1946-01-01	1946-12-26
1947	1947-01-04	1947-12-31
1948	1948-01-01	1948-12-31
1949	1949-01-01	1949-12-31
1950	1950-01-01	1950-12-31
1951	1951-01-01	1951-12-31
1952	1952-01-01	1952-12-31
1953	1953-01-01	1953-12-27
1954	1954-01-01	1954-12-31
1955	1955-01-01	1955-12-26
1956	1956-01-01	1956-12-31
1957	1957-01-01	1957-12-31
1958	1958-01-01	1958-12-28
1959	1959-01-02	1959-12-30
1960	1960-01-04	1960-12-31
1961	1961-01-01	1961-12-31
1962	1962-01-01	1962-12-31
1963	1963-01-01	1963-12-31
1964	1964-01-01	1964-12-31
1965	1965-01-01	1965-12-30
1967	1967-01-08	1967-12-31
1968	1968-01-01	1968-12-31
1969	1969-01-01	1969-12-31
1970	1970-01-01	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-01	1972-12-31
1973	1973-01-01	1973-12-31
1974	1974-01-01	1974-12-31
1975	1975-01-01	1975-12-31
1976	1976-01-01	1976-12-31
1977	1977-01-01	1977-12-31
1978	1978-01-01	1978-12-31
1979	1979-01-01	1979-12-28
1980	1980-01-01	1980-12-31
1993	1993-01-01	1993-12-28
1995	1995-01-02	1995-12-31
1996	1996-01-01	1996-12-31
2025	2025-01-02	2025-08-24

Every Fixed Threshold

Fixed thresholds at Niamey Aero
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	43	360	1941	167
35 C (95 F): Days	43	319	1941	117
40 C (104 F): Days	43	147	1941	71
45 C (113 F): Days	10	24	1941	1
90 F (32.2 C): Days	43	350	1941	150
100 F (37.8 C): Days	43	224	1941	81
110 F (43.3 C): Days	31	42	1941	21
20 C (68 F): Tropical nights (min	41	283	1980	146
25 C (77 F): Days with min	41	138	1972	73
10 mm (0.39 in): Days with 10 mm or more rain	39	28	1967	11
25 mm (0.98 in): Days with 25 mm or more rain	39	16	1952	6
50 mm (1.97 in): Days with 50 mm or more rain	30	3	1942	3
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1952	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1941.

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Data for Niamey Aero threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Niamey Aero Threshold Days by Year (NG000001052)

Key Facts for Niamey Aero Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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