Richfield Threshold Days by Year (USC00107673)

16 fixed thresholds counted per year at Richfield (USC00107673): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Richfield Thresholds

Richfield: days with 10 mm (0.39 in) or more of precipitation in 99 years, most in 2016 with 14.
Richfield: days with a maximum temperature at or above 30 C (86 F) in 98 years, most in 1994 with 84.
Richfield: days with a maximum temperature at or above 90 F (32.2 C) in 98 years, most in 1994 with 65.
Richfield: days with a maximum temperature at or below 0 C (32 F) in 98 years, most in 1985 with 94.
16 fixed thresholds have at least one qualifying day at Richfield.

Days at or above 30 C (86 F)

98 years with a qualifying day

Days per year at Richfield with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 84 in 1994.

Days at or above 30 C (86 F) per year at Richfield
Year	Days	Decade average
1911	57	52.6
1912	37	52.6
1913	46	52.6
1914	51	52.6
1915	43	52.6
1916	57	52.6
1917	52	52.6
1918	53	52.6
1919	77	52.6
1922	69	65.5
1923	62	65.5
1932	49	54.9
1933	62	54.9
1934	66	54.9
1936	58	54.9
1937	52	54.9
1938	53	54.9
1939	44	54.9
1940	65	37.5
1941	36	37.5
1942	20	37.5
1943	38	37.5
1944	32	37.5
1945	46	37.5
1946	40	37.5
1947	23	37.5
1951	32	46.1
1952	36	46.1
1953	49	46.1
1954	51	46.1
1955	55	46.1
1956	43	46.1
1957	46	46.1
1958	54	46.1
1959	49	46.1
1960	48	44.8
1961	68	44.8
1962	33	44.8
1963	41	44.8
1964	41	44.8
1965	21	44.8
1966	52	44.8
1967	59	44.8
1968	37	44.8
1969	48	44.8
1970	49	43.8
1971	48	43.8
1972	33	43.8
1973	46	43.8
1974	51	43.8
1975	40	43.8
1976	33	43.8
1977	58	43.8
1978	30	43.8
1979	50	43.8
1980	27	49.6
1981	61	49.6
1982	37	49.6
1983	37	49.6
1984	53	49.6
1985	50	49.6
1986	48	49.6
1987	57	49.6
1988	79	49.6
1989	47	49.6
1990	68	60.6
1992	76	60.6
1993	32	60.6
1994	84	60.6
1995	55	60.6
1998	61	60.6
1999	48	60.6
2000	58	56.9
2001	71	56.9
2002	54	56.9
2003	63	56.9
2004	50	56.9
2005	53	56.9
2006	56	56.9
2008	56	56.9
2009	51	56.9
2010	48	57.8
2011	54	57.8
2012	66	57.8
2013	73	57.8
2014	49	57.8
2015	48	57.8
2016	53	57.8
2017	76	57.8
2018	56	57.8
2019	55	57.8
2020	71	66.3
2021	73	66.3
2022	76	66.3
2023	47	66.3
2024	70	66.3
2025	61	66.3
2026	66	66.3

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

First to last qualifying date each year at Richfield
Year	First date	Last date
1911	1911-06-11	1911-09-12
1912	1912-06-06	1912-08-26
1913	1913-05-26	1913-09-12
1914	1914-05-30	1914-09-03
1915	1915-06-22	1915-08-31
1916	1916-06-15	1916-09-22
1917	1917-06-15	1917-09-20
1918	1918-06-06	1918-09-21
1919	1919-05-18	1919-09-14
1922	1922-05-24	1922-10-11
1923	1923-05-24	1923-09-20
1932	1932-06-21	1932-09-07
1933	1933-05-30	1933-09-17
1934	1934-05-15	1934-10-12
1936	1936-05-12	1936-09-21
1937	1937-06-21	1937-09-18
1938	1938-06-05	1938-09-27
1939	1939-05-29	1939-09-21
1940	1940-05-10	1940-09-10
1941	1941-05-11	1941-08-16
1942	1942-08-02	1942-09-07
1943	1943-06-29	1943-09-24
1944	1944-06-24	1944-09-12
1945	1945-06-21	1945-09-14
1946	1946-04-25	1946-09-25
1947	1947-05-03	1947-09-24
1951	1951-07-01	1951-09-07
1952	1952-06-05	1952-09-26
1953	1953-06-11	1953-09-15
1954	1954-05-09	1954-09-10
1955	1955-06-08	1955-09-08
1956	1956-05-31	1956-09-18
1957	1957-06-03	1957-09-07
1958	1958-05-19	1958-09-11
1959	1959-05-13	1959-09-11
1960	1960-05-10	1960-09-11
1961	1961-06-15	1961-08-29
1962	1962-06-23	1962-09-18
1963	1963-07-01	1963-09-29
1964	1964-05-19	1964-08-18
1965	1965-06-23	1965-08-12
1966	1966-05-03	1966-09-23
1967	1967-05-22	1967-09-05
1968	1968-06-02	1968-09-13
1969	1969-06-04	1969-09-08
1970	1970-06-03	1970-08-29
1971	1971-06-21	1971-09-11
1972	1972-05-30	1972-08-28
1973	1973-06-21	1973-09-06
1974	1974-06-11	1974-08-31
1975	1975-06-30	1975-09-10
1976	1976-06-28	1976-09-06
1977	1977-06-01	1977-09-11
1978	1978-07-01	1978-09-05
1979	1979-06-11	1979-09-21
1980	1980-06-18	1980-09-06
1981	1981-06-22	1981-09-19
1982	1982-06-20	1982-09-09
1983	1983-05-27	1983-09-01
1984	1984-05-29	1984-09-20
1985	1985-05-01	1985-08-30
1986	1986-05-27	1986-08-30
1987	1987-05-08	1987-10-04
1988	1988-05-13	1988-10-05
1989	1989-05-07	1989-09-30
1990	1990-06-10	1990-10-02
1992	1992-04-30	1992-10-02
1993	1993-05-14	1993-09-12
1994	1994-04-19	1994-09-29
1995	1995-07-06	1995-09-17
1998	1998-06-29	1998-09-18
1999	1999-06-15	1999-09-18
2000	2000-06-05	2000-09-17
2001	2001-05-14	2001-09-28
2002	2002-05-31	2002-09-16
2003	2003-05-24	2003-09-05
2004	2004-06-04	2004-09-12
2005	2005-06-21	2005-09-10
2006	2006-05-17	2006-09-13
2008	2008-05-19	2008-10-01
2009	2009-05-19	2009-09-19
2010	2010-06-25	2010-10-04
2011	2011-06-23	2011-10-01
2012	2012-04-23	2012-09-23
2013	2013-05-14	2013-09-17
2014	2014-06-12	2014-09-26
2015	2015-06-01	2015-09-27
2016	2016-06-05	2016-09-02
2017	2017-06-01	2017-09-12
2018	2018-06-05	2018-09-09
2019	2019-07-02	2019-09-17
2020	2020-05-30	2020-09-19
2021	2021-06-02	2021-09-11
2022	2022-06-17	2022-09-28
2023	2023-07-01	2023-09-11
2024	2024-06-05	2024-09-28
2025	2025-05-10	2025-09-25
2026	2026-05-12	2026-10-05

Every Fixed Threshold

Fixed thresholds at Richfield
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	98	84	1994	66
35 C (95 F): Days	85	34	1994	24
40 C (104 F): Days	4	4	1994	1
90 F (32.2 C): Days	98	65	1994	50
100 F (37.8 C): Days	37	12	1994	7
0 C (32 F): Ice days (max	98	94	1985	8
0 C (32 F): Frost days (min	98	215	1916	98
-10 C (14 F): Days with min	98	103	1985	6
-20 C (-4 F): Days with min	87	27	1922	2
-30 C (-22 F): Days with min	21	6	1917	5
-40 C (-40 F): Days with min	1	1	1933	1
20 C (68 F): Tropical nights (min	19	3	1961	1
10 mm (0.39 in): Days with 10 mm or more rain	99	14	2016	2
25 mm (0.98 in): Days with 25 mm or more rain	34	2	1943	1
10 cm (3.9 in): Days with 10 cm or more snowfall	75	8	1916	3
25 cm (9.8 in): Days with 25 cm or more snowfall	14	4	2008	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1911.

Download the Data

Data for Richfield 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).

Richfield Threshold Days by Year (USC00107673)

Key Facts for Richfield Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related