Urbana Wrf Threshold Days by Year (USC00338552)

19 fixed thresholds counted per year at Urbana Wrf (USC00338552): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Urbana Wrf Thresholds

Urbana Wrf: days with a maximum temperature at or above 30 C (86 F) in 126 years, most in 1908 with 88.
Urbana Wrf: days with a maximum temperature at or below 0 C (32 F) in 126 years, most in 1978 with 62.
Urbana Wrf: nights with a minimum temperature at or below 0 C (32 F) in 126 years, most in 1964 with 164.
Urbana Wrf: nights with a minimum temperature at or below -10 C (14 F) in 126 years, most in 1978 with 58.
19 fixed thresholds have at least one qualifying day at Urbana Wrf.

Days at or above 30 C (86 F)

126 years with a qualifying day

Days per year at Urbana Wrf with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 88 in 1908.

Days at or above 30 C (86 F) per year at Urbana Wrf
Year	Days	Decade average
1896	19	29.8
1897	24	29.8
1898	28	29.8
1899	48	29.8
1900	42	44
1901	37	44
1902	19	44
1903	19	44
1904	32	44
1905	37	44
1906	64	44
1907	49	44
1908	88	44
1909	53	44
1910	64	52.8
1911	70	52.8
1912	41	52.8
1913	69	52.8
1914	75	52.8
1915	19	52.8
1916	52	52.8
1917	17	52.8
1918	52	52.8
1919	69	52.8
1920	15	48.9
1921	60	48.9
1922	65	48.9
1923	55	48.9
1924	41	48.9
1925	70	48.9
1926	45	48.9
1927	45	48.9
1928	56	48.9
1929	37	48.9
1930	61	51.2
1931	64	51.2
1932	32	51.2
1933	57	51.2
1934	69	51.2
1935	37	51.2
1936	74	51.2
1937	37	51.2
1938	35	51.2
1939	46	51.2
1940	43	39.2
1941	56	39.2
1942	33	39.2
1943	41	39.2
1944	59	39.2
1945	35	39.2
1946	20	39.2
1947	26	39.2
1948	33	39.2
1949	46	39.2
1950	9	42.5
1951	29	42.5
1952	56	42.5
1953	66	42.5
1954	46	42.5
1955	66	42.5
1956	35	42.5
1957	39	42.5
1958	19	42.5
1959	60	42.5
1960	33	34.4
1961	30	34.4
1962	38	34.4
1963	24	34.4
1964	53	34.4
1965	32	34.4
1966	41	34.4
1967	26	34.4
1968	37	34.4
1969	30	34.4
1970	40	38
1971	35	38
1972	29	38
1973	32	38
1974	41	38
1975	41	38
1976	32	38
1977	64	38
1978	51	38
1979	15	38
1980	45	35.9
1981	19	35.9
1982	33	35.9
1983	66	35.9
1984	33	35.9
1985	28	35.9
1986	21	35.9
1987	46	35.9
1988	50	35.9
1989	18	35.9
1990	19	41.5
1991	59	41.5
1992	12	41.5
1993	41	41.5
1994	54	41.5
1995	38	41.5
1996	39	41.5
1997	26	41.5
1998	65	41.5
1999	62	41.5
2000	27	34.5
2001	38	34.5
2002	61	34.5
2003	23	34.5
2004	29	34.5
2005	51	34.5
2008	34	34.5
2009	13	34.5
2010	47	47.6
2011	53	47.6
2012	61	47.6
2016	58	47.6
2017	23	47.6
2018	49	47.6
2019	42	47.6
2020	45	40.1
2021	36	40.1
2022	30	40.1
2023	24	40.1
2024	52	40.1
2025	54	40.1
2026	40	40.1

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

First to last qualifying date each year at Urbana Wrf
Year	First date	Last date
1896	1896-05-09	1896-08-11
1897	1897-06-13	1897-09-16
1898	1898-06-06	1898-09-03
1899	1899-04-30	1899-09-07
1900	1900-05-14	1900-09-26
1901	1901-06-11	1901-09-07
1902	1902-05-19	1902-08-31
1903	1903-07-02	1903-09-15
1904	1904-05-25	1904-09-29
1905	1905-05-04	1905-09-28
1906	1906-05-14	1906-09-20
1907	1907-06-17	1907-09-20
1908	1908-05-16	1908-10-18
1909	1909-06-06	1909-09-22
1910	1910-03-24	1910-10-03
1911	1911-05-10	1911-09-07
1912	1912-05-23	1912-09-20
1913	1913-05-02	1913-10-10
1914	1914-05-20	1914-09-22
1915	1915-04-24	1915-09-16
1916	1916-05-26	1916-10-08
1917	1917-06-26	1917-08-20
1918	1918-05-16	1918-08-25
1919	1919-05-27	1919-10-03
1920	1920-06-09	1920-09-26
1921	1921-05-22	1921-09-20
1922	1922-05-09	1922-10-05
1923	1923-05-28	1923-09-27
1924	1924-05-07	1924-09-08
1925	1925-04-23	1925-09-20
1926	1926-05-01	1926-09-19
1927	1927-05-09	1927-10-02
1928	1928-05-03	1928-10-11
1929	1929-03-25	1929-09-05
1930	1930-04-11	1930-09-23
1931	1931-05-28	1931-09-22
1932	1932-05-21	1932-09-02
1933	1933-05-23	1933-09-26
1934	1934-05-06	1934-09-26
1935	1935-06-13	1935-09-18
1936	1936-05-08	1936-09-22
1937	1937-05-26	1937-09-04
1938	1938-05-03	1938-09-14
1939	1939-05-23	1939-09-25
1940	1940-05-14	1940-09-21
1941	1941-05-20	1941-09-30
1942	1942-04-30	1942-09-14
1943	1943-06-03	1943-09-01
1944	1944-05-20	1944-09-03
1945	1945-06-01	1945-09-10
1946	1946-06-07	1946-09-08
1947	1947-06-10	1947-09-11
1948	1948-04-26	1948-09-19
1949	1949-05-04	1949-08-27
1950	1950-05-25	1950-08-26
1951	1951-05-02	1951-10-04
1952	1952-04-22	1952-09-14
1953	1953-05-30	1953-10-03
1954	1954-06-10	1954-09-29
1955	1955-06-05	1955-09-21
1956	1956-05-13	1956-09-13
1957	1957-04-20	1957-09-02
1958	1958-06-05	1958-09-06
1959	1959-05-05	1959-09-28
1960	1960-04-25	1960-09-24
1961	1961-06-02	1961-09-25
1962	1962-05-15	1962-09-14
1963	1963-06-09	1963-09-20
1964	1964-05-20	1964-09-22
1965	1965-05-25	1965-09-21
1966	1966-06-10	1966-09-04
1967	1967-05-28	1967-09-17
1968	1968-06-07	1968-08-25
1969	1969-05-30	1969-09-07
1970	1970-05-23	1970-09-25
1971	1971-06-05	1971-10-03
1972	1972-05-26	1972-09-18
1973	1973-06-04	1973-09-28
1974	1974-05-22	1974-08-28
1975	1975-05-21	1975-08-26
1976	1976-06-08	1976-09-14
1977	1977-04-19	1977-09-09
1978	1978-05-27	1978-09-22
1979	1979-05-12	1979-09-05
1980	1980-06-07	1980-09-15
1981	1981-06-15	1981-08-29
1982	1982-05-13	1982-09-15
1983	1983-06-12	1983-09-20
1984	1984-05-20	1984-09-23
1985	1985-04-23	1985-09-22
1986	1986-04-27	1986-09-29
1987	1987-05-18	1987-09-11
1988	1988-05-30	1988-08-19
1989	1989-06-02	1989-08-05
1990	1990-06-14	1990-09-07
1991	1991-05-15	1991-09-17
1992	1992-06-18	1992-08-27
1993	1993-05-10	1993-09-15
1994	1994-05-23	1994-09-17
1995	1995-06-17	1995-09-07
1996	1996-05-19	1996-09-07
1997	1997-06-19	1997-09-02
1998	1998-05-14	1998-09-27
1999	1999-05-12	1999-09-28
2000	2000-05-06	2000-09-03
2001	2001-05-04	2001-08-31
2002	2002-06-01	2002-09-20
2003	2003-06-24	2003-08-30
2004	2004-05-11	2004-09-07
2005	2005-05-12	2005-09-23
2008	2008-06-06	2008-09-15
2009	2009-06-20	2009-08-19
2010	2010-06-05	2010-09-25
2011	2011-05-13	2011-09-04
2012	2012-05-04	2012-09-08
2016	2016-05-28	2016-09-24
2017	2017-05-17	2017-09-27
2018	2018-05-15	2018-10-10
2019	2019-05-26	2019-10-04
2020	2020-05-25	2020-09-13
2021	2021-05-21	2021-09-20
2022	2022-05-21	2022-09-22
2023	2023-05-31	2023-10-04
2024	2024-05-03	2024-09-23
2025	2025-05-16	2025-10-05
2026	2026-05-19	2026-10-14

Every Fixed Threshold

Fixed thresholds at Urbana Wrf
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	126	88	1908	40
35 C (95 F): Days	70	21	1936	2
40 C (104 F): Days	3	7	1936	7
90 F (32.2 C): Days	124	53	1908	11
100 F (37.8 C): Days	17	10	1936	3
110 F (43.3 C): Days	1	1	1936	1
0 C (32 F): Ice days (max	126	62	1978	32
0 C (32 F): Frost days (min	126	164	1964	76
-10 C (14 F): Days with min	126	58	1978	28
-20 C (-4 F): Days with min	91	23	1977	7
-30 C (-22 F): Days with min	6	2	1985	2
20 C (68 F): Tropical nights (min	125	40	1901	22
25 C (77 F): Days with min	7	3	1934	2
10 mm (0.39 in): Days with 10 mm or more rain	96	50	2001	36
25 mm (0.98 in): Days with 25 mm or more rain	96	17	1986	11
50 mm (1.97 in): Days with 50 mm or more rain	67	5	1986	2
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1946	1
10 cm (3.9 in): Days with 10 cm or more snowfall	22	6	1951	2
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1950	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

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Data for Urbana Wrf 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).

Urbana Wrf Threshold Days by Year (USC00338552)

Key Facts for Urbana Wrf Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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