Ash Mtn Threshold Days by Year (USC00040343)

16 fixed thresholds counted per year at Ash Mtn (USC00040343): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ash Mtn Thresholds

Ash Mtn: days with a maximum temperature at or above 30 C (86 F) in 85 years, most in 2001 with 159.
Ash Mtn: days with a maximum temperature at or above 35 C (95 F) in 85 years, most in 2001 with 101.
Ash Mtn: days with a maximum temperature at or above 90 F (32.2 C) in 85 years, most in 2001 with 135.
Ash Mtn: days with a maximum temperature at or above 100 F (37.8 C) in 85 years, most in 2002 with 61.
16 fixed thresholds have at least one qualifying day at Ash Mtn.

Days at or above 30 C (86 F)

85 years with a qualifying day

Days per year at Ash Mtn with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 159 in 2001.

Days at or above 30 C (86 F) per year at Ash Mtn
Year	Days	Decade average
1927	113	119
1928	131	119
1929	113	119
1930	113	123.1
1931	129	123.1
1932	124	123.1
1933	128	123.1
1934	134	123.1
1935	118	123.1
1936	126	123.1
1937	125	123.1
1938	116	123.1
1939	118	123.1
1940	126	115
1941	93	115
1942	112	115
1943	115	115
1944	116	115
1945	114	115
1946	112	115
1947	127	115
1948	107	115
1949	128	115
1950	129	121.3
1951	140	121.3
1952	131	121.3
1953	107	121.3
1954	120	121.3
1955	114	121.3
1956	117	121.3
1957	107	121.3
1958	122	121.3
1959	126	121.3
1960	122	117.2
1961	119	117.2
1962	123	117.2
1963	99	117.2
1964	117	117.2
1965	115	117.2
1966	126	117.2
1967	120	117.2
1968	114	117.2
1969	117	117.2
1970	120	119.1
1971	112	119.1
1972	110	119.1
1973	122	119.1
1974	132	119.1
1975	127	119.1
1976	107	119.1
1977	116	119.1
1978	117	119.1
1979	128	119.1
1980	124	120.6
1981	128	120.6
1982	100	120.6
1983	113	120.6
1984	127	120.6
1985	114	120.6
1986	115	120.6
1987	129	120.6
1988	132	120.6
1989	124	120.6
1990	135	129.9
1991	135	129.9
1992	148	129.9
1993	118	129.9
1994	122	129.9
1995	119	129.9
1996	136	129.9
1997	147	129.9
1998	101	129.9
1999	138	129.9
2000	125	133.9
2001	159	133.9
2002	138	133.9
2003	148	133.9
2005	114	133.9
2008	126	133.9
2009	127	133.9
2010	121	119.8
2017	126	119.8
2018	118	119.8
2019	114	119.8
2026	131	131

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

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

Every Fixed Threshold

Fixed thresholds at Ash Mtn
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	85	159	2001	131
35 C (95 F): Days	85	101	2001	76
40 C (104 F): Days	82	28	2005	8
45 C (113 F): Days	6	2	1933	1
90 F (32.2 C): Days	85	135	2001	101
100 F (37.8 C): Days	85	61	2002	35
110 F (43.3 C): Days	25	7	1950	2
0 C (32 F): Ice days (max	2	1	1937	1
0 C (32 F): Frost days (min	85	51	1932	2
20 C (68 F): Tropical nights (min	85	77	1939	58
25 C (77 F): Days with min	60	15	1967	9
10 mm (0.39 in): Days with 10 mm or more rain	76	43	1983	8
25 mm (0.98 in): Days with 25 mm or more rain	76	19	1982	3
50 mm (1.97 in): Days with 50 mm or more rain	53	7	1982	1
100 mm (3.94 in): Days with 100 mm or more rain	7	1	1950	1
10 cm (3.9 in): Days with 10 cm or more snowfall	6	2	1949	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1927.

Download the Data

Data for Ash Mtn 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).

Ash Mtn Threshold Days by Year (USC00040343)

Key Facts for Ash Mtn Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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