Cheyenne Threshold Days by Year (USW00024018)

17 fixed thresholds counted per year at Cheyenne (USW00024018): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cheyenne Thresholds

Cheyenne: days with a maximum temperature at or above 30 C (86 F) in 112 years, most in 2022 with 62.
Cheyenne: days with a maximum temperature at or below 0 C (32 F) in 112 years, most in 1929 with 61.
Cheyenne: nights with a minimum temperature at or below 0 C (32 F) in 112 years, most in 1984 with 201.
Cheyenne: nights with a minimum temperature at or below -10 C (14 F) in 112 years, most in 1937 with 72.
17 fixed thresholds have at least one qualifying day at Cheyenne.

Days at or above 30 C (86 F)

112 years with a qualifying day

Days per year at Cheyenne with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 62 in 2022.

Days at or above 30 C (86 F) per year at Cheyenne
Year	Days	Decade average
1915	4	13.8
1916	17	13.8
1917	9	13.8
1918	11	13.8
1919	28	13.8
1920	4	9.5
1921	11	9.5
1922	19	9.5
1923	1	9.5
1924	11	9.5
1925	11	9.5
1926	11	9.5
1927	6	9.5
1928	9	9.5
1929	12	9.5
1930	17	30.9
1931	31	30.9
1932	18	30.9
1933	22	30.9
1934	37	30.9
1935	28	30.9
1936	47	30.9
1937	45	30.9
1938	24	30.9
1939	40	30.9
1940	45	27.7
1941	15	27.7
1942	18	27.7
1943	41	27.7
1944	33	27.7
1945	25	27.7
1946	32	27.7
1947	29	27.7
1948	24	27.7
1949	15	27.7
1950	10	25.6
1951	15	25.6
1952	31	25.6
1953	25	25.6
1954	35	25.6
1955	31	25.6
1956	19	25.6
1957	21	25.6
1958	25	25.6
1959	44	25.6
1960	53	29.9
1961	25	29.9
1962	24	29.9
1963	38	29.9
1964	30	29.9
1965	15	29.9
1966	37	29.9
1967	16	29.9
1968	26	29.9
1969	35	29.9
1970	34	22
1971	23	22
1972	10	22
1973	22	22
1974	23	22
1975	9	22
1976	20	22
1977	22	22
1978	27	22
1979	30	22
1980	40	26.1
1981	19	26.1
1982	16	26.1
1983	19	26.1
1984	13	26.1
1985	31	26.1
1986	22	26.1
1987	24	26.1
1988	46	26.1
1989	31	26.1
1990	23	23.2
1991	16	23.2
1992	9	23.2
1993	14	23.2
1994	40	23.2
1995	41	23.2
1996	19	23.2
1997	16	23.2
1998	34	23.2
1999	20	23.2
2000	55	39.2
2001	47	39.2
2002	48	39.2
2003	51	39.2
2004	21	39.2
2005	37	39.2
2006	43	39.2
2007	43	39.2
2008	32	39.2
2009	15	39.2
2010	36	37.6
2011	36	37.6
2012	55	37.6
2013	46	37.6
2014	21	37.6
2015	26	37.6
2016	46	37.6
2017	32	37.6
2018	39	37.6
2019	39	37.6
2020	55	47.3
2021	57	47.3
2022	62	47.3
2023	32	47.3
2024	46	47.3
2025	31	47.3
2026	48	47.3

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

First to last qualifying date each year at Cheyenne
Year	First date	Last date
1915	1915-07-11	1915-08-31
1916	1916-06-27	1916-08-02
1917	1917-06-29	1917-08-03
1918	1918-06-10	1918-08-02
1919	1919-06-21	1919-08-26
1920	1920-07-02	1920-07-22
1921	1921-06-27	1921-08-18
1922	1922-06-09	1922-08-31
1923	1923-06-24	1923-06-24
1924	1924-06-14	1924-08-29
1925	1925-06-19	1925-07-25
1926	1926-06-27	1926-08-27
1927	1927-06-23	1927-07-20
1928	1928-07-04	1928-08-22
1929	1929-06-28	1929-09-01
1930	1930-06-27	1930-08-20
1931	1931-06-17	1931-09-10
1932	1932-07-06	1932-08-23
1933	1933-06-10	1933-09-07
1934	1934-05-28	1934-08-17
1935	1935-06-14	1935-09-19
1936	1936-06-13	1936-08-26
1937	1937-06-17	1937-09-19
1938	1938-07-03	1938-08-23
1939	1939-06-04	1939-09-12
1940	1940-06-01	1940-09-08
1941	1941-05-12	1941-08-06
1942	1942-07-03	1942-08-21
1943	1943-06-20	1943-09-13
1944	1944-06-20	1944-09-07
1945	1945-07-08	1945-09-06
1946	1946-06-04	1946-08-21
1947	1947-07-02	1947-09-06
1948	1948-06-06	1948-09-15
1949	1949-06-29	1949-08-23
1950	1950-06-12	1950-08-31
1951	1951-07-04	1951-08-16
1952	1952-06-07	1952-09-07
1953	1953-06-10	1953-09-14
1954	1954-05-20	1954-09-11
1955	1955-06-23	1955-09-14
1956	1956-06-04	1956-09-20
1957	1957-06-28	1957-08-19
1958	1958-06-03	1958-09-22
1959	1959-06-06	1959-09-14
1960	1960-06-03	1960-09-06
1961	1961-06-12	1961-08-29
1962	1962-06-28	1962-09-12
1963	1963-06-13	1963-09-05
1964	1964-05-17	1964-08-14
1965	1965-07-04	1965-08-13
1966	1966-05-30	1966-08-30
1967	1967-07-10	1967-08-28
1968	1968-06-19	1968-09-11
1969	1969-05-26	1969-08-29
1970	1970-06-27	1970-09-01
1971	1971-06-23	1971-09-02
1972	1972-07-13	1972-08-13
1973	1973-06-09	1973-08-27
1974	1974-06-19	1974-09-10
1975	1975-07-01	1975-08-31
1976	1976-06-27	1976-09-05
1977	1977-06-04	1977-09-07
1978	1978-06-13	1978-09-10
1979	1979-06-12	1979-09-09
1980	1980-06-11	1980-09-07
1981	1981-06-08	1981-08-30
1982	1982-07-15	1982-09-04
1983	1983-07-06	1983-09-07
1984	1984-05-30	1984-09-05
1985	1985-06-07	1985-08-31
1986	1986-06-16	1986-08-24
1987	1987-06-22	1987-08-20
1988	1988-06-06	1988-09-09
1989	1989-05-28	1989-09-05
1990	1990-06-18	1990-09-13
1991	1991-06-25	1991-08-27
1992	1992-07-06	1992-08-20
1993	1993-06-27	1993-08-24
1994	1994-05-30	1994-09-28
1995	1995-06-14	1995-09-05
1996	1996-05-16	1996-09-05
1997	1997-06-22	1997-08-08
1998	1998-06-27	1998-09-10
1999	1999-06-25	1999-08-31
2000	2000-05-05	2000-09-17
2001	2001-06-10	2001-09-05
2002	2002-05-30	2002-09-06
2003	2003-05-29	2003-09-05
2004	2004-06-06	2004-09-02
2005	2005-05-20	2005-09-09
2006	2006-06-02	2006-08-30
2007	2007-06-11	2007-09-01
2008	2008-06-17	2008-08-26
2009	2009-07-11	2009-09-10
2010	2010-06-25	2010-09-28
2011	2011-06-06	2011-09-01
2012	2012-05-22	2012-09-10
2013	2013-06-09	2013-09-08
2014	2014-06-13	2014-09-26
2015	2015-06-19	2015-09-27
2016	2016-06-09	2016-09-20
2017	2017-06-20	2017-09-13
2018	2018-06-05	2018-09-17
2019	2019-06-28	2019-09-26
2020	2020-05-31	2020-09-07
2021	2021-06-04	2021-09-27
2022	2022-05-27	2022-09-19
2023	2023-06-27	2023-09-03
2024	2024-06-05	2024-09-29
2025	2025-06-15	2025-09-10
2026	2026-06-06	2026-09-13

Every Fixed Threshold

Fixed thresholds at Cheyenne
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	112	62	2022	48
35 C (95 F): Days	43	11	2022	7
90 F (32.2 C): Days	106	33	2020	20
100 F (37.8 C): Days	2	1	1939	1
0 C (32 F): Ice days (max	112	61	1929	10
0 C (32 F): Frost days (min	112	201	1984	79
-10 C (14 F): Days with min	112	72	1937	14
-20 C (-4 F): Days with min	108	17	1937	3
-30 C (-22 F): Days with min	26	5	1989	1
20 C (68 F): Tropical nights (min	1	1	1960	1
10 mm (0.39 in): Days with 10 mm or more rain	112	20	1949	7
25 mm (0.98 in): Days with 25 mm or more rain	90	5	1923	2
50 mm (1.97 in): Days with 50 mm or more rain	10	2	1973	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1985	1
10 cm (3.9 in): Days with 10 cm or more snowfall	109	9	1990	2
25 cm (9.8 in): Days with 25 cm or more snowfall	31	3	1979	1
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1979	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.

Download the Data

Data for Cheyenne 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Cheyenne Threshold Days by Year (USW00024018)

Key Facts for Cheyenne Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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