Medora 1 S Threshold Days by Year (USC00115539)

6 fixed thresholds counted per year at Medora 1 S (USC00115539): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Medora 1 S Thresholds

Medora 1 S: days with 10 mm (0.39 in) or more of precipitation in 80 years, most in 2008 with 45.
Medora 1 S: days with 25 mm (0.98 in) or more of precipitation in 80 years, most in 2008 with 21.
Medora 1 S: days with 50 mm (1.97 in) or more of precipitation in 60 years, most in 2008 with 5.
Medora 1 S: days with 10 cm (3.9 in) or more of snowfall in 54 years, most in 1960 with 5.
6 fixed thresholds have at least one qualifying day at Medora 1 S.

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

80 years with a qualifying day

Days per year at Medora 1 S with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 2008.

Days with 10 mm (0.39 in) or more of precipitation per year at Medora 1 S
Year	Days	Decade average
1943	34	36.1
1944	26	36.1
1945	42	36.1
1946	44	36.1
1947	33	36.1
1948	41	36.1
1949	33	36.1
1950	30	31.7
1951	39	31.7
1952	26	31.7
1953	23	31.7
1954	32	31.7
1955	31	31.7
1956	36	31.7
1957	41	31.7
1958	27	31.7
1959	32	31.7
1960	27	30.7
1961	32	30.7
1962	27	30.7
1963	28	30.7
1964	24	30.7
1965	32	30.7
1966	33	30.7
1967	39	30.7
1968	29	30.7
1969	36	30.7
1970	33	32
1971	30	32
1972	34	32
1973	40	32
1974	37	32
1975	33	32
1976	19	32
1977	31	32
1978	38	32
1979	25	32
1980	23	32.3
1981	35	32.3
1982	44	32.3
1983	36	32.3
1984	40	32.3
1985	37	32.3
1986	26	32.3
1987	32	32.3
1988	27	32.3
1989	23	32.3
1990	36	32.3
1991	30	32.3
1992	23	32.3
1993	41	32.3
1994	31	32.3
1995	31	32.3
1996	34	32.3
1997	32	32.3
2002	40	33.9
2003	29	33.9
2004	33	33.9
2005	28	33.9
2006	28	33.9
2007	27	33.9
2008	45	33.9
2009	41	33.9
2010	33	32
2011	32	32
2012	29	32
2013	36	32
2014	36	32
2015	30	32
2016	33	32
2017	26	32
2018	30	32
2019	35	32
2020	34	30.1
2021	28	30.1
2022	36	30.1
2023	26	30.1
2024	33	30.1
2025	30	30.1
2026	24	30.1

For each year, a bar from the first to the last day at Medora 1 S meeting 10 mm (0.39 in).

First to last qualifying date each year at Medora 1 S
Year	First date	Last date
1943	1943-02-03	1943-12-28
1944	1944-02-25	1944-12-10
1945	1945-01-08	1945-12-24
1946	1946-01-09	1946-12-29
1947	1947-01-02	1947-12-31
1948	1948-01-01	1948-12-28
1949	1949-01-04	1949-12-26
1950	1950-01-03	1950-11-20
1951	1951-01-14	1951-12-25
1952	1952-01-26	1952-12-19
1953	1953-01-02	1953-11-22
1954	1954-01-20	1954-12-29
1955	1955-01-04	1955-11-02
1956	1956-01-30	1956-12-09
1957	1957-01-22	1957-12-20
1958	1958-01-21	1958-11-25
1959	1959-01-20	1959-12-27
1960	1960-02-25	1960-12-11
1961	1961-02-18	1961-11-22
1962	1962-01-06	1962-12-20
1963	1963-01-19	1963-11-22
1964	1964-01-12	1964-11-28
1965	1965-01-02	1965-12-31
1966	1966-01-12	1966-12-08
1967	1967-01-25	1967-12-21
1968	1968-01-14	1968-12-28
1969	1969-01-16	1969-12-23
1970	1970-03-02	1970-12-21
1971	1971-01-03	1971-12-14
1972	1972-03-13	1972-12-30
1973	1973-01-03	1973-12-30
1974	1974-01-18	1974-12-31
1975	1975-01-10	1975-12-29
1976	1976-02-05	1976-10-30
1977	1977-02-23	1977-12-13
1978	1978-02-13	1978-12-30
1979	1979-02-21	1979-12-24
1980	1980-02-15	1980-12-08
1981	1981-02-10	1981-12-23
1982	1982-01-02	1982-12-25
1983	1983-01-23	1983-12-21
1984	1984-02-13	1984-12-30
1985	1985-01-01	1985-12-11
1986	1986-02-03	1986-12-02
1987	1987-01-09	1987-12-27
1988	1988-01-19	1988-12-22
1989	1989-01-05	1989-11-15
1990	1990-01-19	1990-12-30
1991	1991-03-12	1991-12-02
1992	1992-02-14	1992-12-15
1993	1993-01-04	1993-12-02
1994	1994-02-22	1994-12-16
1995	1995-01-13	1995-12-19
1996	1996-01-02	1996-11-24
1997	1997-01-24	1997-12-22
2002	2002-02-01	2002-12-25
2003	2003-02-14	2003-12-23
2004	2004-01-04	2004-12-07
2005	2005-01-03	2005-11-16
2006	2006-01-29	2006-12-21
2007	2007-01-13	2007-12-16
2008	2008-01-08	2008-12-28
2009	2009-01-28	2009-12-25
2010	2010-01-24	2010-12-12
2011	2011-02-01	2011-12-27
2012	2012-01-13	2012-12-20
2013	2013-01-11	2013-12-22
2014	2014-01-06	2014-12-23
2015	2015-01-03	2015-12-28
2016	2016-01-10	2016-12-05
2017	2017-01-03	2017-10-15
2018	2018-01-22	2018-12-31
2019	2019-01-01	2019-12-29
2020	2020-01-10	2020-12-12
2021	2021-01-31	2021-12-18
2022	2022-02-02	2022-12-15
2023	2023-01-03	2023-12-28
2024	2024-01-09	2024-12-15
2025	2025-01-06	2025-11-30
2026	2026-02-15	2026-10-02

Every Fixed Threshold

Fixed thresholds at Medora 1 S
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	80	45	2008	24
25 mm (0.98 in): Days with 25 mm or more rain	80	21	2008	7
50 mm (1.97 in): Days with 50 mm or more rain	60	5	2008	2
100 mm (3.94 in): Days with 100 mm or more rain	9	1	1946	1
10 cm (3.9 in): Days with 10 cm or more snowfall	54	5	1960	1
25 cm (9.8 in): Days with 25 cm or more snowfall	5	2	1973	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1943.

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Data for Medora 1 S 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).

Medora 1 S Threshold Days by Year (USC00115539)

Key Facts for Medora 1 S Thresholds

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

Every Fixed Threshold

Download the Data

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