Monroe Threshold Days by Year (USC00455525)

14 fixed thresholds counted per year at Monroe (USC00455525): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Monroe Thresholds

Monroe: days with 10 mm (0.39 in) or more of precipitation in 88 years, most in 2014 with 69.
Monroe: days with 25 mm (0.98 in) or more of precipitation in 87 years, most in 2006 with 13.
Monroe: nights with a minimum temperature at or below 0 C (32 F) in 86 years, most in 1985 with 101.
Monroe: days with a maximum temperature at or above 30 C (86 F) in 82 years, most in 1958 with 45.
14 fixed thresholds have at least one qualifying day at Monroe.

Days at or above 30 C (86 F)

82 years with a qualifying day

Days per year at Monroe with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 45 in 1958.

Days at or above 30 C (86 F) per year at Monroe
Year	Days	Decade average
1930	8	6.1
1931	7	6.1
1932	6	6.1
1934	7	6.1
1935	7	6.1
1937	2	6.1
1938	7	6.1
1939	5	6.1
1940	5	4.6
1941	11	4.6
1943	1	4.6
1944	9	4.6
1945	3	4.6
1946	2	4.6
1949	1	4.6
1950	5	13.8
1951	9	13.8
1952	16	13.8
1953	8	13.8
1955	2	13.8
1956	7	13.8
1958	45	13.8
1959	18	13.8
1960	16	9.9
1961	18	9.9
1962	8	9.9
1963	10	9.9
1964	5	9.9
1965	7	9.9
1966	2	9.9
1967	20	9.9
1968	7	9.9
1969	6	9.9
1970	5	9.2
1971	14	9.2
1972	10	9.2
1973	5	9.2
1974	10	9.2
1975	3	9.2
1977	12	9.2
1978	16	9.2
1979	8	9.2
1980	2	9.4
1981	17	9.4
1982	10	9.4
1983	4	9.4
1984	8	9.4
1985	15	9.4
1986	13	9.4
1987	12	9.4
1989	4	9.4
1990	13	7.9
1991	6	7.9
1992	11	7.9
1993	5	7.9
1994	6	7.9
1995	8	7.9
1996	13	7.9
1999	1	7.9
2000	3	7.6
2003	17	7.6
2004	13	7.6
2005	9	7.6
2006	6	7.6
2007	3	7.6
2008	2	7.6
2010	6	6.8
2012	4	6.8
2013	3	6.8
2014	6	6.8
2015	18	6.8
2016	7	6.8
2017	6	6.8
2018	9	6.8
2019	2	6.8
2020	6	11.4
2021	5	11.4
2022	11	11.4
2023	15	11.4
2024	13	11.4
2025	18	11.4
2026	12	11.4

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

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

Every Fixed Threshold

Fixed thresholds at Monroe
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	82	45	1958	12
35 C (95 F): Days	16	5	1958	1
90 F (32.2 C): Days	59	22	1958	4
100 F (37.8 C): Days	3	1	1931	1
0 C (32 F): Ice days (max	55	17	1937	2
0 C (32 F): Frost days (min	86	101	1985	27
-10 C (14 F): Days with min	44	17	1950	4
20 C (68 F): Tropical nights (min	2	1	1956	1
10 mm (0.39 in): Days with 10 mm or more rain	88	69	2014	33
25 mm (0.98 in): Days with 25 mm or more rain	87	13	2006	3
50 mm (1.97 in): Days with 50 mm or more rain	29	3	2003	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1984	1
10 cm (3.9 in): Days with 10 cm or more snowfall	26	9	1950	3
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1972	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1930.

Download the Data

Data for Monroe 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).

Monroe Threshold Days by Year (USC00455525)

Key Facts for Monroe Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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