Montevallo Threshold Days by Year (USC00015537)

5 fixed thresholds counted per year at Montevallo (USC00015537): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Montevallo Thresholds

Montevallo: days with 10 mm (0.39 in) or more of precipitation in 75 years, most in 1975 with 60.
Montevallo: days with 25 mm (0.98 in) or more of precipitation in 75 years, most in 1979 with 29.
Montevallo: days with 50 mm (1.97 in) or more of precipitation in 75 years, most in 1979 with 10.
Montevallo: days with 100 mm (3.94 in) or more of precipitation in 20 years, most in 1945 with 2.
5 fixed thresholds have at least one qualifying day at Montevallo.

Days with 10 mm (0.39 in) or more of precipitation

75 years with a qualifying day

Days per year at Montevallo with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 60 in 1975.

Days with 10 mm (0.39 in) or more of precipitation per year at Montevallo
Year	Days	Decade average
1941	34	42.3
1944	43	42.3
1945	37	42.3
1947	45	42.3
1948	51	42.3
1949	44	42.3
1950	43	42.3
1951	39	42.3
1952	38	42.3
1953	49	42.3
1954	31	42.3
1955	39	42.3
1956	46	42.3
1957	48	42.3
1958	42	42.3
1959	48	42.3
1960	47	45.1
1961	50	45.1
1962	44	45.1
1963	43	45.1
1964	48	45.1
1965	49	45.1
1967	44	45.1
1968	44	45.1
1969	37	45.1
1970	40	48.2
1971	53	48.2
1972	48	48.2
1973	47	48.2
1974	47	48.2
1975	60	48.2
1976	52	48.2
1977	44	48.2
1978	40	48.2
1979	51	48.2
1980	47	43.9
1981	33	43.9
1982	44	43.9
1983	57	43.9
1984	53	43.9
1985	39	43.9
1986	37	43.9
1987	39	43.9
1988	45	43.9
1989	45	43.9
1996	53	47.5
1997	56	47.5
1998	44	47.5
1999	37	47.5
2000	30	42.2
2001	53	42.2
2002	46	42.2
2003	49	42.2
2004	45	42.2
2005	43	42.2
2006	43	42.2
2007	28	42.2
2008	43	42.2
2010	36	46.4
2011	37	46.4
2012	50	46.4
2013	54	46.4
2014	42	46.4
2015	58	46.4
2016	35	46.4
2017	53	46.4
2018	53	46.4
2019	46	46.4
2020	60	45.1
2021	51	45.1
2022	52	45.1
2023	41	45.1
2024	39	45.1
2025	44	45.1
2026	29	45.1

For each year, a bar from the first to the last day at Montevallo meeting 10 mm (0.39 in).

First to last qualifying date each year at Montevallo
Year	First date	Last date
1941	1941-01-15	1941-12-23
1944	1944-01-03	1944-12-28
1945	1945-01-01	1945-12-31
1947	1947-01-12	1947-12-15
1948	1948-01-01	1948-12-25
1949	1949-01-05	1949-12-23
1950	1950-01-07	1950-12-29
1951	1951-01-03	1951-12-21
1952	1952-01-05	1952-12-31
1953	1953-01-02	1953-12-29
1954	1954-01-16	1954-12-31
1955	1955-01-11	1955-12-18
1956	1956-01-19	1956-12-24
1957	1957-01-05	1957-12-26
1958	1958-01-13	1958-12-24
1959	1959-01-01	1959-12-28
1960	1960-01-03	1960-12-21
1961	1961-01-01	1961-12-28
1962	1962-01-01	1962-12-29
1963	1963-01-12	1963-12-23
1964	1964-01-01	1964-12-25
1965	1965-01-01	1965-12-25
1967	1967-01-08	1967-12-28
1968	1968-01-04	1968-12-31
1969	1969-01-19	1969-12-31
1970	1970-01-06	1970-12-29
1971	1971-01-05	1971-12-20
1972	1972-01-02	1972-12-31
1973	1973-01-03	1973-12-31
1974	1974-01-01	1974-12-25
1975	1975-01-04	1975-12-31
1976	1976-01-03	1976-12-26
1977	1977-01-03	1977-12-30
1978	1978-01-06	1978-12-30
1979	1979-01-02	1979-12-24
1980	1980-01-04	1980-12-10
1981	1981-01-07	1981-12-31
1982	1982-01-01	1982-12-28
1983	1983-01-02	1983-12-28
1984	1984-01-10	1984-12-22
1985	1985-01-01	1985-12-13
1986	1986-01-01	1986-12-24
1987	1987-01-18	1987-12-28
1988	1988-01-01	1988-12-31
1989	1989-01-01	1989-12-30
1996	1996-01-07	1996-12-27
1997	1997-01-05	1997-12-27
1998	1998-01-06	1998-12-26
1999	1999-01-03	1999-12-21
2000	2000-01-04	2000-12-29
2001	2001-01-08	2001-12-23
2002	2002-01-06	2002-12-24
2003	2003-01-01	2003-12-30
2004	2004-01-09	2004-12-23
2005	2005-01-08	2005-11-29
2006	2006-01-14	2006-11-16
2007	2007-01-01	2007-12-30
2008	2008-01-09	2008-12-25
2010	2010-02-05	2010-12-12
2011	2011-01-01	2011-12-27
2012	2012-01-09	2012-12-29
2013	2013-01-02	2013-12-29
2014	2014-01-11	2014-12-28
2015	2015-01-02	2015-12-30
2016	2016-01-10	2016-12-06
2017	2017-01-02	2017-12-21
2018	2018-01-09	2018-12-29
2019	2019-01-01	2019-12-30
2020	2020-01-03	2020-12-24
2021	2021-01-01	2021-12-31
2022	2022-01-02	2022-12-31
2023	2023-01-04	2023-12-25
2024	2024-01-06	2024-12-29
2025	2025-01-06	2025-12-19
2026	2026-01-03	2026-08-22

Every Fixed Threshold

Fixed thresholds at Montevallo
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	75	60	1975	29
25 mm (0.98 in): Days with 25 mm or more rain	75	29	1979	11
50 mm (1.97 in): Days with 50 mm or more rain	75	10	1979	2
100 mm (3.94 in): Days with 100 mm or more rain	20	2	1945	1
10 cm (3.9 in): Days with 10 cm or more snowfall	3	1	1962	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1941.

Download the Data

Data for Montevallo 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Montevallo Threshold Days by Year (USC00015537)

Key Facts for Montevallo Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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