Kosmos Threshold Days by Year (USC00454286)

16 fixed thresholds counted per year at Kosmos (USC00454286): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Kosmos Thresholds

Kosmos: days with a maximum temperature at or above 30 C (86 F) in 44 years, most in 1914 with 60.
Kosmos: days with a maximum temperature at or above 90 F (32.2 C) in 43 years, most in 1958 with 29.
Kosmos: nights with a minimum temperature at or below 0 C (32 F) in 43 years, most in 1949 with 139.
Kosmos: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1948 with 72.
16 fixed thresholds have at least one qualifying day at Kosmos.

Days at or above 30 C (86 F)

44 years with a qualifying day

Days per year at Kosmos with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 60 in 1914.

Days at or above 30 C (86 F) per year at Kosmos
Year	Days	Decade average
1906	37	30.5
1907	21	30.5
1908	42	30.5
1909	22	30.5
1910	12	30.5
1911	24	30.5
1912	22	30.5
1913	26	30.5
1914	60	30.5
1916	23	30.5
1918	38	30.5
1919	39	30.5
1933	21	24.7
1934	25	24.7
1935	28	24.7
1936	18	24.7
1937	18	24.7
1938	35	24.7
1939	28	24.7
1940	21	22.4
1941	23	22.4
1942	23	22.4
1943	18	22.4
1944	23	22.4
1945	29	22.4
1946	27	22.4
1947	17	22.4
1948	16	22.4
1949	27	22.4
1950	27	21.9
1951	33	21.9
1952	36	21.9
1953	14	21.9
1954	2	21.9
1955	11	21.9
1956	22	21.9
1957	13	21.9
1958	40	21.9
1959	21	21.9
1960	19	19.8
1961	39	19.8
1962	15	19.8
1963	13	19.8
1964	13	19.8

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

First to last qualifying date each year at Kosmos
Year	First date	Last date
1906	1906-04-05	1906-10-09
1907	1907-05-05	1907-09-09
1908	1908-06-07	1908-10-07
1909	1909-05-02	1909-09-15
1910	1910-05-30	1910-09-20
1911	1911-05-31	1911-08-31
1912	1912-05-12	1912-08-24
1913	1913-04-20	1913-09-20
1914	1914-05-13	1914-10-11
1916	1916-06-12	1916-09-19
1918	1918-04-20	1918-09-15
1919	1919-07-06	1919-09-24
1933	1933-06-11	1933-10-06
1934	1934-04-18	1934-10-10
1935	1935-06-04	1935-10-01
1936	1936-04-15	1936-10-10
1937	1937-05-02	1937-09-14
1938	1938-05-21	1938-09-17
1939	1939-05-12	1939-09-21
1940	1940-05-09	1940-09-23
1941	1941-05-10	1941-08-19
1942	1942-06-05	1942-09-22
1943	1943-06-29	1943-09-24
1944	1944-05-27	1944-09-10
1945	1945-05-02	1945-10-01
1946	1946-05-02	1946-09-23
1947	1947-04-16	1947-09-24
1948	1948-05-24	1948-09-11
1949	1949-05-11	1949-09-27
1950	1950-05-25	1950-09-21
1951	1951-05-21	1951-10-08
1952	1952-05-16	1952-10-06
1953	1953-05-04	1953-09-10
1954	1954-05-07	1954-06-29
1955	1955-06-07	1955-09-06
1956	1956-04-20	1956-09-06
1957	1957-04-28	1957-09-23
1958	1958-05-15	1958-09-07
1959	1959-06-01	1959-09-02
1960	1960-07-05	1960-09-11
1961	1961-05-19	1961-10-14
1962	1962-06-23	1962-09-17
1963	1963-05-17	1963-09-27
1964	1964-07-07	1964-08-24

Every Fixed Threshold

Fixed thresholds at Kosmos
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	44	60	1914	13
35 C (95 F): Days	39	11	1939	2
40 C (104 F): Days	8	2	1942	1
90 F (32.2 C): Days	43	29	1958	2
100 F (37.8 C): Days	19	4	1942	3
0 C (32 F): Ice days (max	30	17	1950	4
0 C (32 F): Frost days (min	43	139	1949	107
-10 C (14 F): Days with min	30	17	1949	2
-20 C (-4 F): Days with min	3	2	1919	1
20 C (68 F): Tropical nights (min	3	3	1918	3
10 mm (0.39 in): Days with 10 mm or more rain	42	72	1948	30
25 mm (0.98 in): Days with 25 mm or more rain	42	21	1933	6
50 mm (1.97 in): Days with 50 mm or more rain	31	8	1933	4
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1933	1
10 cm (3.9 in): Days with 10 cm or more snowfall	20	7	1949	1
25 cm (9.8 in): Days with 25 cm or more snowfall	2	4	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 1906.

Download the Data

Data for Kosmos 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).

Kosmos Threshold Days by Year (USC00454286)

Key Facts for Kosmos Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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