Leavenworth Threshold Days by Year (USC00144588)

20 fixed thresholds counted per year at Leavenworth (USC00144588): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Leavenworth Thresholds

Leavenworth: nights with a minimum temperature at or below 0 C (32 F) in 89 years, most in 1984 with 140.
Leavenworth: nights with a minimum temperature at or below -10 C (14 F) in 89 years, most in 1978 with 56.
Leavenworth: nights with a minimum temperature at or above 20 C (68 F) in 89 years, most in 1914 with 72.
Leavenworth: days with a maximum temperature at or above 30 C (86 F) in 87 years, most in 1939 with 116.
20 fixed thresholds have at least one qualifying day at Leavenworth.

Days at or above 30 C (86 F)

87 years with a qualifying day

Days per year at Leavenworth with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 116 in 1939.

Days at or above 30 C (86 F) per year at Leavenworth
Year	Days	Decade average
1892	55	55
1902	61	59.5
1903	54	59.5
1904	50	59.5
1905	73	59.5
1912	79	82.3
1913	97	82.3
1914	95	82.3
1915	58	82.3
1916	76	82.3
1918	83	82.3
1919	88	82.3
1920	66	75.3
1921	104	75.3
1922	90	75.3
1923	57	75.3
1924	53	75.3
1926	85	75.3
1929	72	75.3
1930	69	90.8
1931	98	90.8
1932	71	90.8
1933	90	90.8
1934	91	90.8
1935	72	90.8
1936	102	90.8
1937	100	90.8
1938	99	90.8
1939	116	90.8
1940	88	80.8
1941	84	80.8
1942	74	80.8
1943	86	80.8
1944	84	80.8
1945	63	80.8
1947	91	80.8
1948	85	80.8
1949	72	80.8
1950	37	77.4
1951	54	77.4
1952	106	77.4
1953	102	77.4
1954	90	77.4
1955	80	77.4
1956	104	77.4
1957	67	77.4
1958	59	77.4
1959	75	77.4
1960	65	70.7
1961	55	70.7
1962	71	70.7
1963	102	70.7
1964	71	70.7
1965	78	70.7
1966	68	70.7
1967	61	70.7
1969	65	70.7
1974	69	75.7
1975	87	75.7
1976	74	75.7
1977	69	75.7
1978	84	75.7
1979	71	75.7
1980	101	74.3
1981	44	74.3
1983	89	74.3
1984	78	74.3
1985	67	74.3
1986	72	74.3
1987	80	74.3
1988	87	74.3
1989	51	74.3
1990	79	69.7
1991	96	69.7
1992	40	69.7
1993	59	69.7
1994	73	69.7
1995	72	69.7
1996	60	69.7
1997	83	69.7
1999	65	69.7
2003	81	74.3
2004	64	74.3
2005	85	74.3
2006	91	74.3
2007	74	74.3
2008	51	74.3

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

First to last qualifying date each year at Leavenworth
Year	First date	Last date
1892	1892-05-24	1892-10-05
1902	1902-04-21	1902-09-05
1903	1903-06-16	1903-09-25
1904	1904-05-24	1904-09-29
1905	1905-04-09	1905-09-28
1912	1912-05-01	1912-10-05
1913	1913-04-17	1913-09-09
1914	1914-05-10	1914-09-20
1915	1915-04-17	1915-09-26
1916	1916-03-21	1916-10-08
1918	1918-05-08	1918-10-05
1919	1919-05-30	1919-10-03
1920	1920-05-10	1920-10-10
1921	1921-03-18	1921-10-17
1922	1922-06-08	1922-10-27
1923	1923-06-02	1923-09-28
1924	1924-06-07	1924-09-20
1926	1926-04-17	1926-09-24
1929	1929-03-24	1929-09-28
1930	1930-04-09	1930-09-25
1931	1931-05-16	1931-10-11
1932	1932-05-13	1932-09-19
1933	1933-04-09	1933-09-25
1934	1934-04-10	1934-10-12
1935	1935-06-10	1935-09-24
1936	1936-04-13	1936-09-23
1937	1937-05-18	1937-10-05
1938	1938-05-18	1938-10-17
1939	1939-05-16	1939-10-26
1940	1940-04-01	1940-10-25
1941	1941-05-14	1941-09-22
1942	1942-04-04	1942-10-02
1943	1943-04-29	1943-09-06
1944	1944-05-14	1944-09-21
1945	1945-05-20	1945-09-23
1947	1947-05-14	1947-10-23
1948	1948-04-18	1948-09-21
1949	1949-04-25	1949-10-08
1950	1950-04-23	1950-10-31
1951	1951-04-27	1951-10-03
1952	1952-04-29	1952-10-01
1953	1953-04-22	1953-10-19
1954	1954-04-06	1954-10-09
1955	1955-05-06	1955-09-21
1956	1956-04-01	1956-10-12
1957	1957-06-05	1957-09-03
1958	1958-04-23	1958-10-20
1959	1959-05-01	1959-09-22
1960	1960-04-22	1960-10-11
1961	1961-04-23	1961-09-10
1962	1962-04-30	1962-09-17
1963	1963-05-07	1963-10-19
1964	1964-04-16	1964-09-10
1965	1965-04-20	1965-10-10
1966	1966-03-31	1966-10-14
1967	1967-05-18	1967-10-04
1969	1969-05-29	1969-10-04
1974	1974-05-13	1974-09-19
1975	1975-05-07	1975-10-13
1976	1976-04-02	1976-10-03
1977	1977-05-15	1977-09-08
1978	1978-05-24	1978-10-21
1979	1979-05-17	1979-10-21
1980	1980-04-20	1980-10-09
1981	1981-04-25	1981-10-05
1983	1983-05-28	1983-10-03
1984	1984-06-01	1984-09-25
1985	1985-05-11	1985-09-19
1986	1986-03-29	1986-09-29
1987	1987-04-19	1987-09-06
1988	1988-05-13	1988-09-22
1989	1989-04-22	1989-10-15
1990	1990-05-25	1990-10-05
1991	1991-03-26	1991-10-24
1992	1992-05-12	1992-09-16
1993	1993-05-28	1993-09-22
1994	1994-04-18	1994-10-01
1995	1995-06-07	1995-10-12
1996	1996-04-11	1996-08-29
1997	1997-04-18	1997-10-06
1999	1999-05-16	1999-09-07
2003	2003-04-03	2003-10-21
2004	2004-04-17	2004-09-19
2005	2005-05-11	2005-10-05
2006	2006-04-14	2006-10-04
2007	2007-04-30	2007-10-06
2008	2008-05-18	2008-09-02

Every Fixed Threshold

Fixed thresholds at Leavenworth
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	87	116	1939	51
35 C (95 F): Days	85	66	1936	5
40 C (104 F): Days	19	34	1936	1
45 C (113 F): Days	1	1	1936	1
90 F (32.2 C): Days	87	82	1936	22
100 F (37.8 C): Days	53	51	1936	1
110 F (43.3 C): Days	5	8	1936	2
0 C (32 F): Ice days (max	87	50	1978	34
0 C (32 F): Frost days (min	89	140	1984	118
-10 C (14 F): Days with min	89	56	1978	40
-20 C (-4 F): Days with min	56	15	1936	2
-30 C (-22 F): Days with min	2	3	1989	3
20 C (68 F): Tropical nights (min	89	72	1914	34
25 C (77 F): Days with min	69	30	1934	2
10 mm (0.39 in): Days with 10 mm or more rain	85	48	1961	32
25 mm (0.98 in): Days with 25 mm or more rain	85	19	1961	16
50 mm (1.97 in): Days with 50 mm or more rain	77	9	1961	2
100 mm (3.94 in): Days with 100 mm or more rain	11	2	1958	1
10 cm (3.9 in): Days with 10 cm or more snowfall	39	7	1960	3
25 cm (9.8 in): Days with 25 cm or more snowfall	2	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 1892.

Download the Data

Data for Leavenworth 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Leavenworth Threshold Days by Year (USC00144588)

Key Facts for Leavenworth Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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