Ridgway Threshold Days by Year

18 fixed thresholds counted per year at Ridgway (USC00367477): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ridgway Thresholds

Ridgway: days with 10 mm (0.39 in) or more of precipitation in 113 years, most in 1990 with 53.
Ridgway: days with 25 mm (0.98 in) or more of precipitation in 113 years, most in 2019 with 15.
Ridgway: nights with a minimum temperature at or below 0 C (32 F) in 110 years, most in 1943 with 196.
Ridgway: nights with a minimum temperature at or below -10 C (14 F) in 110 years, most in 1958 with 72.
18 fixed thresholds have at least one qualifying day at Ridgway.

Days at or above 30 C (86 F)

108 years with a qualifying day

Days per year at Ridgway with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 72 in 1927.

Days at or above 30 C (86 F) per year at Ridgway
Year	Days	Decade average
1913	40	22.5
1915	5	22.5
1916	22	22.5
1917	8	22.5
1918	39	22.5
1919	21	22.5
1920	3	21
1921	7	21
1923	14	21
1926	9	21
1927	72	21
1930	39	32
1931	32	32
1932	19	32
1933	21	32
1934	59	32
1935	19	32
1936	46	32
1937	32	32
1938	22	32
1939	31	32
1940	25	33.7
1941	33	33.7
1942	16	33.7
1943	32	33.7
1944	42	33.7
1945	39	33.7
1946	33	33.7
1947	32	33.7
1948	32	33.7
1949	53	33.7
1950	17	26
1951	32	26
1952	48	26
1953	45	26
1954	13	26
1955	39	26
1956	10	26
1957	15	26
1958	4	26
1959	37	26
1960	8	15.7
1961	20	15.7
1962	18	15.7
1963	15	15.7
1964	22	15.7
1965	9	15.7
1966	25	15.7
1967	9	15.7
1968	20	15.7
1969	11	15.7
1970	13	11.4
1971	13	11.4
1972	7	11.4
1973	18	11.4
1974	9	11.4
1975	16	11.4
1976	2	11.4
1977	13	11.4
1978	11	11.4
1979	12	11.4
1980	11	12.9
1981	10	12.9
1982	10	12.9
1983	23	12.9
1984	8	12.9
1985	3	12.9
1986	7	12.9
1987	18	12.9
1988	33	12.9
1989	6	12.9
1990	5	12.6
1991	22	12.6
1992	1	12.6
1993	18	12.6
1994	9	12.6
1995	28	12.6
1996	4	12.6
1997	6	12.6
1998	14	12.6
1999	19	12.6
2000	6	12.4
2001	16	12.4
2002	26	12.4
2003	4	12.4
2004	1	12.4
2005	25	12.4
2006	11	12.4
2007	21	12.4
2008	9	12.4
2009	5	12.4
2010	27	21.7
2011	26	21.7
2012	36	21.7
2013	16	21.7
2014	5	21.7
2015	20	21.7
2016	34	21.7
2017	14	21.7
2018	22	21.7
2019	17	21.7
2020	34	20.6
2021	18	20.6
2022	21	20.6
2023	12	20.6
2024	21	20.6
2025	28	20.6
2026	10	20.6

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

First to last qualifying date each year at Ridgway
Year	First date	Last date
1913	1913-04-24	1913-09-07
1915	1915-04-25	1915-09-15
1916	1916-07-11	1916-08-22
1917	1917-07-21	1917-08-02
1918	1918-05-17	1918-08-27
1919	1919-05-29	1919-07-28
1920	1920-06-01	1920-09-26
1921	1921-04-06	1921-07-28
1923	1923-06-04	1923-08-11
1926	1926-07-09	1926-10-04
1927	1927-04-15	1927-10-02
1930	1930-05-08	1930-09-24
1931	1931-06-14	1931-09-23
1932	1932-05-17	1932-09-02
1933	1933-06-09	1933-09-09
1934	1934-05-01	1934-09-27
1935	1935-04-27	1935-09-19
1936	1936-05-08	1936-09-24
1937	1937-05-31	1937-09-04
1938	1938-04-29	1938-08-23
1939	1939-05-09	1939-09-18
1940	1940-05-17	1940-09-22
1941	1941-05-07	1941-10-08
1942	1942-04-26	1942-09-16
1943	1943-06-04	1943-09-07
1944	1944-05-04	1944-09-04
1945	1945-05-22	1945-09-11
1946	1946-06-01	1946-10-08
1947	1947-06-11	1947-09-15
1948	1948-05-12	1948-09-18
1949	1949-05-05	1949-10-10
1950	1950-05-05	1950-09-11
1951	1951-05-01	1951-10-05
1952	1952-06-06	1952-09-14
1953	1953-05-10	1953-09-30
1954	1954-06-01	1954-09-06
1955	1955-05-04	1955-09-19
1956	1956-06-12	1956-08-31
1957	1957-06-14	1957-09-03
1958	1958-07-02	1958-07-28
1959	1959-05-06	1959-09-29
1960	1960-04-24	1960-09-08
1961	1961-06-12	1961-09-24
1962	1962-04-28	1962-09-01
1963	1963-06-11	1963-07-29
1964	1964-05-20	1964-09-11
1965	1965-07-10	1965-09-23
1966	1966-06-14	1966-08-10
1967	1967-06-11	1967-06-22
1968	1968-06-06	1968-08-24
1969	1969-05-30	1969-08-26
1970	1970-05-02	1970-09-25
1971	1971-05-20	1971-09-07
1972	1972-07-19	1972-08-25
1973	1973-06-11	1973-09-06
1974	1974-05-15	1974-07-29
1975	1975-05-22	1975-08-27
1976	1976-04-19	1976-06-09
1977	1977-05-18	1977-08-30
1978	1978-05-27	1978-08-20
1979	1979-05-09	1979-08-02
1980	1980-05-24	1980-09-02
1981	1981-06-16	1981-07-20
1982	1982-05-19	1982-09-14
1983	1983-06-13	1983-09-11
1984	1984-06-09	1984-08-11
1985	1985-04-24	1985-09-08
1986	1986-05-19	1986-07-26
1987	1987-05-30	1987-08-18
1988	1988-06-15	1988-08-18
1989	1989-06-27	1989-07-27
1990	1990-04-28	1990-07-29
1991	1991-06-16	1991-09-17
1992	1992-07-15	1992-07-15
1993	1993-05-11	1993-09-01
1994	1994-06-16	1994-07-21
1995	1995-06-20	1995-09-02
1996	1996-05-19	1996-07-01
1997	1997-06-22	1997-07-18
1998	1998-05-16	1998-09-15
1999	1999-06-10	1999-09-05
2000	2000-06-11	2000-09-04
2001	2001-05-02	2001-08-14
2002	2002-06-24	2002-09-11
2003	2003-06-25	2003-08-15
2004	2004-06-10	2004-06-10
2005	2005-06-09	2005-08-15
2006	2006-05-30	2006-08-04
2007	2007-06-01	2007-09-26
2008	2008-06-07	2008-07-20
2009	2009-06-26	2009-08-18
2010	2010-05-27	2010-09-25
2011	2011-05-30	2011-09-04
2012	2012-05-20	2012-09-07
2013	2013-05-22	2013-09-12
2014	2014-05-14	2014-07-23
2015	2015-05-09	2015-09-11
2016	2016-05-29	2016-09-11
2017	2017-06-13	2017-09-28
2018	2018-05-29	2018-09-06
2019	2019-05-20	2019-10-02
2020	2020-05-26	2020-09-09
2021	2021-05-21	2021-08-29
2022	2022-05-22	2022-08-30
2023	2023-04-15	2023-09-07
2024	2024-05-23	2024-08-29
2025	2025-06-23	2025-08-18
2026	2026-05-19	2026-09-02

Every Fixed Threshold

Fixed thresholds at Ridgway
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	108	72	1927	10
35 C (95 F): Days	24	37	1927	3
40 C (104 F): Days	1	5	1927	5
90 F (32.2 C): Days	79	53	1927	3
100 F (37.8 C): Days	6	18	1927	1
110 F (43.3 C): Days	1	1	1927	1
0 C (32 F): Ice days (max	108	65	1989	35
0 C (32 F): Frost days (min	110	196	1943	95
-10 C (14 F): Days with min	110	72	1958	33
-20 C (-4 F): Days with min	99	26	1934	11
-30 C (-22 F): Days with min	20	5	1934	2
20 C (68 F): Tropical nights (min	47	8	1949	2
10 mm (0.39 in): Days with 10 mm or more rain	113	53	1990	40
25 mm (0.98 in): Days with 25 mm or more rain	113	15	2019	8
50 mm (1.97 in): Days with 50 mm or more rain	66	5	1953	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1967	1
10 cm (3.9 in): Days with 10 cm or more snowfall	92	8	2010	3
25 cm (9.8 in): Days with 25 cm or more snowfall	16	2	1961	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1913.

Download the Data

Data for Ridgway 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Ridgway Threshold Days by Year

Key Facts for Ridgway Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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