Atar Threshold Days by Year

12 fixed thresholds counted per year at Atar (MR000001421): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Atar Thresholds

Atar: nights with a minimum temperature at or above 20 C (68 F) in 39 years, most in 1942 with 227.
Atar: nights with a minimum temperature at or above 25 C (77 F) in 39 years, most in 1945 with 147.
Atar: days with a maximum temperature at or above 30 C (86 F) in 38 years, most in 1977 with 314.
Atar: days with a maximum temperature at or above 35 C (95 F) in 38 years, most in 1955 with 248.
12 fixed thresholds have at least one qualifying day at Atar.

Days at or above 30 C (86 F)

38 years with a qualifying day

Days per year at Atar with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 314 in 1977.

Days at or above 30 C (86 F) per year at Atar
Year	Days	Decade average
1940	284	276.1
1941	287	276.1
1942	275	276.1
1943	257	276.1
1944	275	276.1
1945	292	276.1
1946	264	276.1
1947	283	276.1
1948	277	276.1
1949	267	276.1
1950	285	282.7
1951	267	282.7
1952	285	282.7
1953	273	282.7
1954	268	282.7
1955	313	282.7
1956	272	282.7
1957	277	282.7
1958	298	282.7
1959	289	282.7
1960	301	293.9
1961	307	293.9
1962	289	293.9
1963	305	293.9
1964	298	293.9
1965	281	293.9
1967	273	293.9
1968	289	293.9
1969	302	293.9
1970	308	284.9
1971	283	284.9
1972	270	284.9
1973	282	284.9
1974	261	284.9
1976	258	284.9
1977	314	284.9
1978	303	284.9
1980	287	287

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

First to last qualifying date each year at Atar
Year	First date	Last date
1940	1940-01-01	1940-12-22
1941	1941-01-06	1941-12-30
1942	1942-01-29	1942-12-17
1943	1943-01-13	1943-12-03
1944	1944-01-30	1944-12-13
1945	1945-01-13	1945-12-29
1946	1946-01-15	1946-12-09
1947	1947-01-15	1947-12-09
1948	1948-01-28	1948-12-19
1949	1949-01-29	1949-12-29
1950	1950-01-09	1950-12-18
1951	1951-02-20	1951-12-01
1952	1952-02-04	1952-12-07
1953	1953-01-14	1953-12-16
1954	1954-01-17	1954-12-30
1955	1955-01-04	1955-12-18
1956	1956-01-11	1956-12-09
1957	1957-02-06	1957-12-25
1958	1958-01-14	1958-12-24
1959	1959-01-18	1959-12-29
1960	1960-01-03	1960-11-28
1961	1961-01-27	1961-12-31
1962	1962-01-04	1962-12-31
1963	1963-01-01	1963-12-19
1964	1964-01-06	1964-12-27
1965	1965-01-23	1965-12-15
1967	1967-01-02	1967-12-15
1968	1968-01-13	1968-12-31
1969	1969-01-03	1969-12-31
1970	1970-01-01	1970-12-26
1971	1971-01-11	1971-12-31
1972	1972-01-01	1972-12-15
1973	1973-01-05	1973-11-29
1974	1974-01-14	1974-12-30
1976	1976-02-24	1976-12-31
1977	1977-01-01	1977-12-30
1978	1978-01-04	1978-12-31
1980	1980-01-03	1980-12-31

Every Fixed Threshold

Fixed thresholds at Atar
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	38	314	1977	287
35 C (95 F): Days	38	248	1955	214
40 C (104 F): Days	38	131	1973	101
45 C (113 F): Days	38	23	1956	5
90 F (32.2 C): Days	38	281	1955	251
100 F (37.8 C): Days	38	186	1964	156
110 F (43.3 C): Days	38	45	1955	32
20 C (68 F): Tropical nights (min	39	227	1942	222
25 C (77 F): Days with min	39	147	1945	123
10 mm (0.39 in): Days with 10 mm or more rain	34	8	1950	4
25 mm (0.98 in): Days with 25 mm or more rain	15	4	1951	1
50 mm (1.97 in): Days with 50 mm or more rain	5	1	1950	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1940.

Download the Data

Data for Atar 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

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

Atar Threshold Days by Year

Key Facts for Atar Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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