Kalispell Glacier AP Threshold Days by Year (USC00244558)

17 fixed thresholds counted per year at Kalispell Glacier AP (USC00244558): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Kalispell Glacier AP Thresholds

Kalispell Glacier AP: days with a maximum temperature at or above 30 C (86 F) in 129 years, most in 2021 with 55.
Kalispell Glacier AP: days with a maximum temperature at or below 0 C (32 F) in 129 years, most in 1985 with 95.
Kalispell Glacier AP: nights with a minimum temperature at or below 0 C (32 F) in 129 years, most in 2000 with 213.
Kalispell Glacier AP: nights with a minimum temperature at or below -10 C (14 F) in 129 years, most in 1985 with 83.
17 fixed thresholds have at least one qualifying day at Kalispell Glacier AP.

Days at or above 30 C (86 F)

129 years with a qualifying day

Days per year at Kalispell Glacier AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 55 in 2021.

Days at or above 30 C (86 F) per year at Kalispell Glacier AP
Year	Days	Decade average
1897	25	19.7
1898	26	19.7
1899	8	19.7
1900	16	13.3
1901	14	13.3
1902	4	13.3
1903	5	13.3
1904	19	13.3
1905	20	13.3
1906	24	13.3
1907	4	13.3
1908	19	13.3
1909	8	13.3
1910	14	15.1
1911	9	15.1
1912	9	15.1
1913	15	15.1
1914	21	15.1
1915	14	15.1
1916	6	15.1
1917	22	15.1
1918	17	15.1
1919	24	15.1
1920	28	17.4
1921	13	17.4
1922	15	17.4
1923	12	17.4
1924	16	17.4
1925	22	17.4
1926	24	17.4
1927	7	17.4
1928	11	17.4
1929	26	17.4
1930	25	24.8
1931	31	24.8
1932	21	24.8
1933	26	24.8
1934	22	24.8
1935	15	24.8
1936	38	24.8
1937	18	24.8
1938	29	24.8
1939	23	24.8
1940	29	15.1
1941	17	15.1
1942	15	15.1
1943	11	15.1
1944	12	15.1
1945	21	15.1
1946	15	15.1
1947	13	15.1
1948	3	15.1
1950	14	21.9
1951	22	21.9
1952	19	21.9
1953	24	21.9
1954	13	21.9
1955	29	21.9
1956	21	21.9
1957	15	21.9
1958	39	21.9
1959	23	21.9
1960	32	28.9
1961	51	28.9
1962	28	28.9
1963	28	28.9
1964	12	28.9
1965	18	28.9
1966	19	28.9
1967	45	28.9
1968	24	28.9
1969	32	28.9
1970	37	28.2
1971	36	28.2
1972	22	28.2
1973	44	28.2
1974	30	28.2
1975	23	28.2
1976	12	28.2
1977	21	28.2
1978	19	28.2
1979	38	28.2
1980	9	21.8
1981	25	21.8
1982	13	21.8
1983	19	21.8
1984	20	21.8
1985	26	21.8
1986	27	21.8
1987	21	21.8
1988	37	21.8
1989	21	21.8
1990	32	23.5
1991	23	23.5
1992	27	23.5
1993	5	23.5
1994	33	23.5
1995	9	23.5
1996	27	23.5
1997	10	23.5
1998	41	23.5
1999	28	23.5
2000	31	31.2
2001	32	31.2
2002	22	31.2
2003	47	31.2
2004	24	31.2
2005	22	31.2
2006	33	31.2
2007	51	31.2
2008	25	31.2
2009	25	31.2
2010	12	31.1
2011	24	31.1
2012	33	31.1
2013	43	31.1
2014	32	31.1
2015	38	31.1
2016	26	31.1
2017	51	31.1
2018	29	31.1
2019	23	31.1
2020	30	36.9
2021	55	36.9
2022	42	36.9
2023	36	36.9
2024	36	36.9
2025	34	36.9
2026	25	36.9

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

First to last qualifying date each year at Kalispell Glacier AP
Year	First date	Last date
1897	1897-05-28	1897-08-30
1898	1898-06-18	1898-08-28
1899	1899-07-07	1899-07-20
1900	1900-06-21	1900-08-01
1901	1901-07-06	1901-08-25
1902	1902-07-21	1902-08-08
1903	1903-05-31	1903-08-19
1904	1904-06-30	1904-09-07
1905	1905-07-09	1905-08-27
1906	1906-06-26	1906-09-06
1907	1907-07-28	1907-08-02
1908	1908-07-08	1908-09-05
1909	1909-06-15	1909-08-14
1910	1910-06-26	1910-08-20
1911	1911-06-23	1911-09-02
1912	1912-06-20	1912-08-24
1913	1913-06-07	1913-08-26
1914	1914-06-01	1914-08-15
1915	1915-07-22	1915-08-29
1916	1916-06-17	1916-07-31
1917	1917-06-16	1917-08-25
1918	1918-06-09	1918-08-01
1919	1919-05-21	1919-08-25
1920	1920-06-29	1920-08-16
1921	1921-07-07	1921-08-30
1922	1922-06-03	1922-08-29
1923	1923-07-02	1923-08-18
1924	1924-06-30	1924-08-28
1925	1925-06-19	1925-08-21
1926	1926-06-06	1926-08-25
1927	1927-07-08	1927-07-26
1928	1928-07-12	1928-08-10
1929	1929-07-02	1929-08-31
1930	1930-06-10	1930-08-24
1931	1931-06-07	1931-09-05
1932	1932-06-22	1932-08-19
1933	1933-06-13	1933-08-29
1934	1934-05-24	1934-09-06
1935	1935-06-22	1935-08-22
1936	1936-05-26	1936-08-30
1937	1937-06-02	1937-09-17
1938	1938-07-10	1938-09-15
1939	1939-06-29	1939-08-27
1940	1940-06-11	1940-09-11
1941	1941-06-22	1941-08-21
1942	1942-06-30	1942-08-20
1943	1943-07-08	1943-09-13
1944	1944-06-30	1944-09-08
1945	1945-06-21	1945-09-03
1946	1946-07-14	1946-08-22
1947	1947-07-07	1947-09-04
1948	1948-06-08	1948-09-02
1950	1950-06-30	1950-09-03
1951	1951-07-13	1951-08-21
1952	1952-07-09	1952-09-26
1953	1953-07-08	1953-09-12
1954	1954-07-04	1954-08-09
1955	1955-06-20	1955-09-06
1956	1956-05-19	1956-08-23
1957	1957-06-05	1957-09-27
1958	1958-05-22	1958-09-11
1959	1959-06-19	1959-09-12
1960	1960-06-29	1960-09-03
1961	1961-05-25	1961-08-30
1962	1962-06-24	1962-09-06
1963	1963-06-14	1963-09-07
1964	1964-07-07	1964-08-17
1965	1965-06-10	1965-08-19
1966	1966-05-26	1966-09-06
1967	1967-07-03	1967-09-21
1968	1968-06-26	1968-08-25
1969	1969-06-04	1969-09-11
1970	1970-06-03	1970-08-31
1971	1971-06-22	1971-08-29
1972	1972-06-06	1972-08-29
1973	1973-05-16	1973-09-11
1974	1974-06-13	1974-08-25
1975	1975-07-02	1975-08-15
1976	1976-06-29	1976-09-01
1977	1977-06-06	1977-08-21
1978	1978-06-28	1978-09-04
1979	1979-06-12	1979-09-16
1980	1980-07-08	1980-07-31
1981	1981-07-04	1981-09-18
1982	1982-06-19	1982-09-09
1983	1983-05-28	1983-08-31
1984	1984-06-28	1984-08-26
1985	1985-06-28	1985-08-25
1986	1986-05-26	1986-08-28
1987	1987-06-13	1987-09-01
1988	1988-05-22	1988-09-05
1989	1989-06-29	1989-08-12
1990	1990-06-22	1990-09-11
1991	1991-07-04	1991-08-31
1992	1992-06-09	1992-10-02
1993	1993-05-11	1993-08-09
1994	1994-06-21	1994-08-21
1995	1995-07-08	1995-09-03
1996	1996-06-08	1996-08-30
1997	1997-07-28	1997-09-02
1998	1998-07-09	1998-09-15
1999	1999-05-24	1999-09-23
2000	2000-06-29	2000-08-25
2001	2001-05-23	2001-09-25
2002	2002-05-19	2002-08-14
2003	2003-05-24	2003-09-07
2004	2004-06-23	2004-08-21
2005	2005-06-21	2005-08-28
2006	2006-05-17	2006-09-07
2007	2007-06-02	2007-09-04
2008	2008-06-21	2008-08-24
2009	2009-07-03	2009-09-16
2010	2010-06-29	2010-08-26
2011	2011-07-07	2011-09-24
2012	2012-07-06	2012-08-31
2013	2013-06-28	2013-09-15
2014	2014-07-02	2014-09-24
2015	2015-06-08	2015-08-27
2016	2016-06-05	2016-08-30
2017	2017-05-30	2017-09-09
2018	2018-07-05	2018-09-07
2019	2019-07-13	2019-09-05
2020	2020-05-30	2020-09-06
2021	2021-06-02	2021-09-05
2022	2022-06-17	2022-09-07
2023	2023-05-01	2023-08-29
2024	2024-07-07	2024-09-09
2025	2025-05-28	2025-09-25
2026	2026-05-28	2026-08-27

Every Fixed Threshold

Fixed thresholds at Kalispell Glacier AP
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	129	55	2021	25
35 C (95 F): Days	81	13	2003	1
40 C (104 F): Days	2	1	1960	1
90 F (32.2 C): Days	125	34	2003	10
100 F (37.8 C): Days	15	3	1961	1
0 C (32 F): Ice days (max	129	95	1985	20
0 C (32 F): Frost days (min	129	213	2000	110
-10 C (14 F): Days with min	129	83	1985	12
-20 C (-4 F): Days with min	121	27	1916	4
-30 C (-22 F): Days with min	47	9	1979	3
20 C (68 F): Tropical nights (min	6	7	1898	1
10 mm (0.39 in): Days with 10 mm or more rain	129	19	1993	12
25 mm (0.98 in): Days with 25 mm or more rain	57	3	1900	2
50 mm (1.97 in): Days with 50 mm or more rain	5	1	1900	1
10 cm (3.9 in): Days with 10 cm or more snowfall	78	10	1996	2
25 cm (9.8 in): Days with 25 cm or more snowfall	17	2	1990	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1996	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1897.

Download the Data

Data for Kalispell Glacier AP 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).

Kalispell Glacier AP Threshold Days by Year (USC00244558)

Key Facts for Kalispell Glacier AP Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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