Walnut Grove Threshold Days by Year

6 fixed thresholds counted per year at Walnut Grove (USC00029166): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Walnut Grove Thresholds

Walnut Grove: days with 10 mm (0.39 in) or more of precipitation in 121 years, most in 1931 with 28.
Walnut Grove: days with 25 mm (0.98 in) or more of precipitation in 118 years, most in 1905 with 15.
Walnut Grove: days with 50 mm (1.97 in) or more of precipitation in 49 years, most in 1997 with 3.
Walnut Grove: days with 10 cm (3.9 in) or more of snowfall in 29 years, most in 1949 with 4.
6 fixed thresholds have at least one qualifying day at Walnut Grove.

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

121 years with a qualifying day

Days per year at Walnut Grove with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 28 in 1931.

Days with 10 mm (0.39 in) or more of precipitation per year at Walnut Grove
Year	Days	Decade average
1897	7	4.3
1898	3	4.3
1899	3	4.3
1900	2	12.6
1901	3	12.6
1902	5	12.6
1903	6	12.6
1905	23	12.6
1906	24	12.6
1907	14	12.6
1908	18	12.6
1909	18	12.6
1910	10	10.2
1911	12	10.2
1912	15	10.2
1913	7	10.2
1914	12	10.2
1915	10	10.2
1916	6	10.2
1917	3	10.2
1918	13	10.2
1919	14	10.2
1920	6	11.7
1921	9	11.7
1923	10	11.7
1924	10	11.7
1925	10	11.7
1926	14	11.7
1927	24	11.7
1928	14	11.7
1929	8	11.7
1930	20	15.6
1931	28	15.6
1932	19	15.6
1933	8	15.6
1934	11	15.6
1935	13	15.6
1936	16	15.6
1937	11	15.6
1938	16	15.6
1939	14	15.6
1940	15	13.6
1941	21	13.6
1943	13	13.6
1944	17	13.6
1945	7	13.6
1946	12	13.6
1947	9	13.6
1948	10	13.6
1949	18	13.6
1950	12	14.4
1951	16	14.4
1952	20	14.4
1953	7	14.4
1954	13	14.4
1955	14	14.4
1956	5	14.4
1957	19	14.4
1958	19	14.4
1959	19	14.4
1960	8	15.2
1961	12	15.2
1962	12	15.2
1963	19	15.2
1964	10	15.2
1965	26	15.2
1966	12	15.2
1967	17	15.2
1968	17	15.2
1969	19	15.2
1970	14	14.9
1971	13	14.9
1972	14	14.9
1973	21	14.9
1974	17	14.9
1975	11	14.9
1976	14	14.9
1981	18	15.8
1982	20	15.8
1983	19	15.8
1984	14	15.8
1985	17	15.8
1986	15	15.8
1987	15	15.8
1988	15	15.8
1989	9	15.8
1990	15	15.7
1991	16	15.7
1992	19	15.7
1993	22	15.7
1994	14	15.7
1995	15	15.7
1996	7	15.7
1997	16	15.7
1998	21	15.7
1999	12	15.7
2000	13	13.1
2001	12	13.1
2003	11	13.1
2004	15	13.1
2005	18	13.1
2006	15	13.1
2007	11	13.1
2008	14	13.1
2009	9	13.1
2010	16	13.9
2012	10	13.9
2013	15	13.9
2014	14	13.9
2015	11	13.9
2016	13	13.9
2017	14	13.9
2018	11	13.9
2019	21	13.9
2020	7	10.1
2021	10	10.1
2022	14	10.1
2023	13	10.1
2024	8	10.1
2025	14	10.1
2026	5	10.1

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

First to last qualifying date each year at Walnut Grove
Year	First date	Last date
1897	1897-01-16	1897-12-19
1898	1898-07-15	1898-12-10
1899	1899-07-20	1899-11-16
1900	1900-04-28	1900-08-02
1901	1901-08-02	1901-10-28
1902	1902-01-25	1902-09-15
1903	1903-02-06	1903-08-11
1905	1905-01-18	1905-11-29
1906	1906-01-19	1906-12-31
1907	1907-01-01	1907-10-16
1908	1908-01-28	1908-12-17
1909	1909-01-15	1909-12-21
1910	1910-03-25	1910-12-26
1911	1911-01-25	1911-09-30
1912	1912-03-04	1912-10-27
1913	1913-01-10	1913-11-13
1914	1914-01-27	1914-12-24
1915	1915-01-22	1915-12-15
1916	1916-07-10	1916-12-27
1917	1917-05-09	1917-07-25
1918	1918-02-18	1918-11-24
1919	1919-01-31	1919-09-27
1920	1920-03-10	1920-08-16
1921	1921-01-18	1921-12-22
1923	1923-07-12	1923-12-30
1924	1924-03-28	1924-12-17
1925	1925-06-28	1925-10-06
1926	1926-01-02	1926-12-23
1927	1927-01-22	1927-12-28
1928	1928-02-03	1928-12-28
1929	1929-02-07	1929-09-05
1930	1930-01-10	1930-11-18
1931	1931-02-04	1931-12-29
1932	1932-02-02	1932-12-14
1933	1933-01-18	1933-11-30
1934	1934-02-23	1934-12-15
1935	1935-01-11	1935-09-27
1936	1936-01-29	1936-12-31
1937	1937-01-06	1937-12-24
1938	1938-01-15	1938-12-21
1939	1939-01-06	1939-11-28
1940	1940-02-01	1940-12-30
1941	1941-01-11	1941-12-11
1943	1943-01-23	1943-12-09
1944	1944-01-24	1944-12-28
1945	1945-01-20	1945-08-11
1946	1946-01-03	1946-12-27
1947	1947-05-11	1947-12-06
1948	1948-02-06	1948-12-31
1949	1949-01-10	1949-12-10
1950	1950-01-29	1950-09-06
1951	1951-01-12	1951-12-30
1952	1952-01-18	1952-12-21
1953	1953-02-28	1953-11-18
1954	1954-01-20	1954-08-07
1955	1955-01-07	1955-12-02
1956	1956-02-06	1956-10-23
1957	1957-01-08	1957-12-15
1958	1958-02-04	1958-11-16
1959	1959-01-06	1959-12-31
1960	1960-01-13	1960-11-06
1961	1961-01-27	1961-12-15
1962	1962-01-21	1962-12-18
1963	1963-01-03	1963-11-21
1964	1964-03-03	1964-12-28
1965	1965-01-06	1965-12-30
1966	1966-01-18	1966-12-07
1967	1967-01-23	1967-11-27
1968	1968-01-27	1968-12-26
1969	1969-01-14	1969-12-04
1970	1970-02-11	1970-12-21
1971	1971-02-17	1971-12-22
1972	1972-08-05	1972-12-28
1973	1973-02-07	1973-11-12
1974	1974-01-05	1974-12-05
1975	1975-02-17	1975-12-21
1976	1976-02-05	1976-12-31
1981	1981-01-12	1981-11-29
1982	1982-01-22	1982-12-23
1983	1983-01-27	1983-12-25
1984	1984-06-30	1984-12-27
1985	1985-01-08	1985-11-30
1986	1986-02-01	1986-12-20
1987	1987-01-04	1987-12-17
1988	1988-01-18	1988-11-25
1989	1989-01-04	1989-12-29
1990	1990-01-02	1990-11-20
1991	1991-01-04	1991-12-11
1992	1992-01-04	1992-12-28
1993	1993-01-06	1993-12-12
1994	1994-02-07	1994-12-26
1995	1995-01-04	1995-09-28
1996	1996-02-26	1996-09-05
1997	1997-01-13	1997-12-21
1998	1998-01-04	1998-11-29
1999	1999-02-05	1999-09-23
2000	2000-02-21	2000-10-30
2001	2001-01-09	2001-12-04
2003	2003-02-13	2003-12-26
2004	2004-02-23	2004-12-29
2005	2005-01-03	2005-10-18
2006	2006-03-11	2006-10-14
2007	2007-01-31	2007-12-08
2008	2008-01-07	2008-12-26
2009	2009-02-08	2009-12-08
2010	2010-01-20	2010-12-30
2012	2012-03-16	2012-12-15
2013	2013-01-26	2013-12-20
2014	2014-03-01	2014-12-04
2015	2015-01-27	2015-12-12
2016	2016-01-06	2016-12-31
2017	2017-01-01	2017-09-09
2018	2018-01-10	2018-10-13
2019	2019-01-06	2019-12-24
2020	2020-02-11	2020-08-31
2021	2021-01-25	2021-12-25
2022	2022-02-23	2022-12-27
2023	2023-01-02	2023-12-22
2024	2024-01-23	2024-08-06
2025	2025-03-07	2025-12-25
2026	2026-01-01	2026-08-14

Every Fixed Threshold

Fixed thresholds at Walnut Grove
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	121	28	1931	5
25 mm (0.98 in): Days with 25 mm or more rain	118	15	1905	1
50 mm (1.97 in): Days with 50 mm or more rain	49	3	1997	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1916	1
10 cm (3.9 in): Days with 10 cm or more snowfall	29	4	1949	2
25 cm (9.8 in): Days with 25 cm or more snowfall	4	1	1909	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 Walnut Grove 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 2026-10-13. Last revised 13 October 2026 (2026-10-13).

Walnut Grove Threshold Days by Year

Key Facts for Walnut Grove Thresholds

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

Every Fixed Threshold

Download the Data

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