Mtn Park Threshold Days by Year (USC00295960)

15 fixed thresholds counted per year at Mtn Park (USC00295960): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mtn Park Thresholds

Mtn Park: days with 10 mm (0.39 in) or more of precipitation in 101 years, most in 1941 with 41.
Mtn Park: days with 25 mm (0.98 in) or more of precipitation in 97 years, most in 1914 with 8.
Mtn Park: nights with a minimum temperature at or below 0 C (32 F) in 87 years, most in 1947 with 142.
Mtn Park: nights with a minimum temperature at or below -10 C (14 F) in 86 years, most in 1949 with 21.
15 fixed thresholds have at least one qualifying day at Mtn Park.

Days at or above 30 C (86 F)

83 years with a qualifying day

Days per year at Mtn Park with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 62 in 1969.

Days at or above 30 C (86 F) per year at Mtn Park
Year	Days	Decade average
1916	17	8.3
1917	5	8.3
1918	3	8.3
1921	4	8
1922	12	8
1933	24	28
1935	28	28
1938	28	28
1939	32	28
1940	30	12.3
1941	7	12.3
1942	13	12.3
1945	12	12.3
1946	7	12.3
1947	8	12.3
1948	9	12.3
1950	5	8.7
1951	22	8.7
1952	3	8.7
1953	12	8.7
1954	8	8.7
1955	3	8.7
1956	5	8.7
1957	16	8.7
1958	12	8.7
1959	1	8.7
1960	24	28
1961	15	28
1962	5	28
1963	33	28
1964	36	28
1966	27	28
1967	22	28
1969	62	28
1970	47	18.1
1971	14	18.1
1972	8	18.1
1976	6	18.1
1977	16	18.1
1978	18	18.1
1979	18	18.1
1980	42	14.8
1981	20	14.8
1982	14	14.8
1983	15	14.8
1984	3	14.8
1985	12	14.8
1986	6	14.8
1987	10	14.8
1988	3	14.8
1989	23	14.8
1990	19	22.2
1991	9	22.2
1992	21	22.2
1993	19	22.2
1994	41	22.2
1995	26	22.2
1996	30	22.2
1997	23	22.2
1998	25	22.2
1999	9	22.2
2000	32	29.3
2001	28	29.3
2002	36	29.3
2003	34	29.3
2004	24	29.3
2005	38	29.3
2009	13	29.3
2012	8	14.9
2013	13	14.9
2014	21	14.9
2015	8	14.9
2016	20	14.9
2017	15	14.9
2018	16	14.9
2019	18	14.9
2020	35	23.6
2021	14	23.6
2022	14	23.6
2023	40	23.6
2024	19	23.6
2025	21	23.6
2026	22	23.6

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

First to last qualifying date each year at Mtn Park
Year	First date	Last date
1916	1916-06-04	1916-07-04
1917	1917-06-20	1917-08-10
1918	1918-06-27	1918-06-29
1921	1921-06-25	1921-07-02
1922	1922-06-08	1922-08-23
1933	1933-05-28	1933-08-21
1935	1935-06-14	1935-09-01
1938	1938-04-20	1938-08-22
1939	1939-05-09	1939-09-09
1940	1940-05-02	1940-08-17
1941	1941-07-03	1941-07-10
1942	1942-06-17	1942-07-24
1945	1945-06-14	1945-09-07
1946	1946-06-12	1946-08-18
1947	1947-06-07	1947-07-11
1948	1948-06-15	1948-09-05
1950	1950-06-09	1950-06-29
1951	1951-05-26	1951-07-26
1952	1952-08-08	1952-08-10
1953	1953-06-09	1953-06-28
1954	1954-06-17	1954-07-28
1955	1955-06-07	1955-06-09
1956	1956-06-04	1956-06-26
1957	1957-06-23	1957-07-13
1958	1958-06-24	1958-08-16
1959	1959-07-30	1959-07-30
1960	1960-06-01	1960-06-30
1961	1961-06-01	1961-07-21
1962	1962-06-26	1962-08-31
1963	1963-05-13	1963-08-02
1964	1964-05-23	1964-09-02
1966	1966-05-29	1966-08-16
1967	1967-06-05	1967-09-14
1969	1969-05-21	1969-08-24
1970	1970-05-17	1970-09-09
1971	1971-06-24	1971-07-18
1972	1972-06-21	1972-08-01
1976	1976-06-20	1976-07-10
1977	1977-06-13	1977-09-04
1978	1978-06-18	1978-08-16
1979	1979-06-21	1979-07-25
1980	1980-06-05	1980-08-03
1981	1981-06-07	1981-07-25
1982	1982-06-26	1982-09-02
1983	1983-06-17	1983-09-07
1984	1984-05-12	1984-07-16
1985	1985-06-08	1985-08-22
1986	1986-06-15	1986-08-20
1987	1987-06-17	1987-07-09
1988	1988-06-02	1988-07-14
1989	1989-05-08	1989-07-17
1990	1990-06-03	1990-06-30
1991	1991-06-18	1991-07-07
1992	1992-06-18	1992-09-10
1993	1993-06-12	1993-08-11
1994	1994-05-30	1994-08-30
1995	1995-06-13	1995-09-06
1996	1996-05-09	1996-08-15
1997	1997-06-02	1997-09-19
1998	1998-05-28	1998-09-14
1999	1999-06-25	1999-08-15
2000	2000-05-15	2000-09-12
2001	2001-05-02	2001-09-06
2002	2002-05-30	2002-08-30
2003	2003-05-18	2003-08-12
2004	2004-05-19	2004-08-07
2005	2005-05-19	2005-09-27
2009	2009-07-08	2009-10-02
2012	2012-06-18	2012-06-28
2013	2013-06-10	2013-07-15
2014	2014-06-01	2014-09-05
2015	2015-06-20	2015-08-18
2016	2016-06-17	2016-07-23
2017	2017-06-09	2017-07-27
2018	2018-05-12	2018-07-23
2019	2019-05-01	2019-08-27
2020	2020-06-05	2020-09-03
2021	2021-06-09	2021-08-09
2022	2022-06-10	2022-08-02
2023	2023-06-21	2023-09-09
2024	2024-06-05	2024-08-22
2025	2025-06-08	2025-08-09
2026	2026-06-11	2026-08-26

Every Fixed Threshold

Fixed thresholds at Mtn Park
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	83	62	1969	22
35 C (95 F): Days	13	3	1940	1
90 F (32.2 C): Days	60	31	1969	7
100 F (37.8 C): Days	1	1	1940	1
0 C (32 F): Ice days (max	61	15	1918	3
0 C (32 F): Frost days (min	87	142	1947	31
-10 C (14 F): Days with min	86	21	1949	1
-20 C (-4 F): Days with min	6	1	1949	1
20 C (68 F): Tropical nights (min	16	7	1950	1
25 C (77 F): Days with min	1	1	2002	1
10 mm (0.39 in): Days with 10 mm or more rain	101	41	1941	16
25 mm (0.98 in): Days with 25 mm or more rain	97	8	1914	4
50 mm (1.97 in): Days with 50 mm or more rain	26	3	1941	1
10 cm (3.9 in): Days with 10 cm or more snowfall	69	6	1938	1
25 cm (9.8 in): Days with 25 cm or more snowfall	16	1	1912	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1916.

Download the Data

Data for Mtn Park 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).

Mtn Park Threshold Days by Year (USC00295960)

Key Facts for Mtn Park Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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