Fairfield Threshold Days by Year (USC00242857)

16 fixed thresholds counted per year at Fairfield (USC00242857): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fairfield Thresholds

Fairfield: nights with a minimum temperature at or below 0 C (32 F) in 97 years, most in 1970 with 203.
Fairfield: nights with a minimum temperature at or below -10 C (14 F) in 97 years, most in 1955 with 87.
Fairfield: nights with a minimum temperature at or below -20 C (-4 F) in 95 years, most in 1936 with 44.
Fairfield: days with a maximum temperature at or above 30 C (86 F) in 94 years, most in 1970 with 45.
16 fixed thresholds have at least one qualifying day at Fairfield.

Days at or above 30 C (86 F)

94 years with a qualifying day

Days per year at Fairfield with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 45 in 1970.

Days at or above 30 C (86 F) per year at Fairfield
Year	Days	Decade average
1927	2	13
1928	8	13
1929	29	13
1930	21	22.4
1931	25	22.4
1932	19	22.4
1933	32	22.4
1934	18	22.4
1935	15	22.4
1936	37	22.4
1937	28	22.4
1938	10	22.4
1939	19	22.4
1940	31	20.5
1941	16	20.5
1942	22	20.5
1943	24	20.5
1944	11	20.5
1945	25	20.5
1946	20	20.5
1947	21	20.5
1948	15	20.5
1949	20	20.5
1950	17	20.4
1951	18	20.4
1952	19	20.4
1953	24	20.4
1954	18	20.4
1955	20	20.4
1956	21	20.4
1957	25	20.4
1958	22	20.4
1959	20	20.4
1960	32	26.4
1961	35	26.4
1962	5	26.4
1963	31	26.4
1964	24	26.4
1965	13	26.4
1966	34	26.4
1967	38	26.4
1968	19	26.4
1969	33	26.4
1970	45	25.2
1971	40	25.2
1972	22	25.2
1973	27	25.2
1974	30	25.2
1975	14	25.2
1976	18	25.2
1977	10	25.2
1978	18	25.2
1979	28	25.2
1980	17	24
1981	33	24
1987	15	24
1988	40	24
1989	15	24
1990	30	20
1991	24	20
1992	17	20
1993	3	20
1994	24	20
1995	10	20
1996	23	20
1997	15	20
1998	37	20
1999	17	20
2000	24	24
2001	28	24
2002	16	24
2003	42	24
2004	13	24
2005	24	24
2006	30	24
2007	33	24
2008	13	24
2009	17	24
2010	12	21.6
2011	26	21.6
2013	28	21.6
2014	18	21.6
2015	29	21.6
2016	18	21.6
2017	32	21.6
2018	21	21.6
2019	10	21.6
2020	22	28.4
2021	37	28.4
2022	40	28.4
2023	18	28.4
2024	29	28.4
2025	25	28.4
2026	28	28.4

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

First to last qualifying date each year at Fairfield
Year	First date	Last date
1927	1927-07-08	1927-07-09
1928	1928-05-25	1928-08-11
1929	1929-06-28	1929-09-01
1930	1930-06-10	1930-08-09
1931	1931-06-07	1931-09-05
1932	1932-06-21	1932-09-06
1933	1933-05-30	1933-08-18
1934	1934-05-25	1934-08-29
1935	1935-07-13	1935-08-23
1936	1936-05-14	1936-08-10
1937	1937-06-21	1937-08-26
1938	1938-07-14	1938-09-24
1939	1939-07-09	1939-08-27
1940	1940-06-14	1940-09-01
1941	1941-05-24	1941-08-12
1942	1942-07-02	1942-09-05
1943	1943-07-06	1943-10-03
1944	1944-06-30	1944-09-07
1945	1945-06-21	1945-09-03
1946	1946-07-11	1946-09-15
1947	1947-07-02	1947-09-04
1948	1948-06-08	1948-09-15
1949	1949-06-10	1949-09-23
1950	1950-06-30	1950-09-06
1951	1951-07-13	1951-08-21
1952	1952-07-04	1952-09-26
1953	1953-07-09	1953-09-13
1954	1954-05-19	1954-08-30
1955	1955-07-14	1955-09-06
1956	1956-06-04	1956-08-24
1957	1957-06-04	1957-09-07
1958	1958-05-28	1958-09-10
1959	1959-06-12	1959-09-11
1960	1960-05-12	1960-09-01
1961	1961-06-16	1961-08-24
1962	1962-06-25	1962-08-17
1963	1963-06-18	1963-09-29
1964	1964-05-19	1964-08-19
1965	1965-07-05	1965-08-12
1966	1966-05-26	1966-09-23
1967	1967-07-12	1967-09-29
1968	1968-06-19	1968-09-10
1969	1969-06-04	1969-09-13
1970	1970-06-03	1970-08-31
1971	1971-06-22	1971-09-06
1972	1972-05-30	1972-08-29
1973	1973-06-23	1973-08-22
1974	1974-06-12	1974-09-25
1975	1975-07-04	1975-08-06
1976	1976-06-30	1976-09-05
1977	1977-06-01	1977-09-07
1978	1978-07-15	1978-09-05
1979	1979-06-11	1979-09-16
1980	1980-05-21	1980-09-07
1981	1981-06-26	1981-09-19
1987	1987-06-14	1987-09-22
1988	1988-05-16	1988-09-06
1989	1989-06-29	1989-08-12
1990	1990-06-23	1990-09-23
1991	1991-07-03	1991-10-10
1992	1992-05-06	1992-10-01
1993	1993-07-29	1993-08-10
1994	1994-06-23	1994-09-25
1995	1995-07-08	1995-09-03
1996	1996-06-07	1996-08-30
1997	1997-07-14	1997-09-25
1998	1998-07-09	1998-09-16
1999	1999-07-11	1999-08-30
2000	2000-07-12	2000-09-14
2001	2001-05-13	2001-09-25
2002	2002-06-26	2002-09-15
2003	2003-05-25	2003-09-07
2004	2004-07-14	2004-08-31
2005	2005-07-08	2005-08-29
2006	2006-05-17	2006-09-06
2007	2007-06-23	2007-09-04
2008	2008-05-18	2008-08-26
2009	2009-07-19	2009-09-25
2010	2010-06-29	2010-08-27
2011	2011-06-29	2011-10-01
2013	2013-07-01	2013-09-05
2014	2014-07-03	2014-09-25
2015	2015-06-08	2015-09-25
2016	2016-06-07	2016-09-01
2017	2017-06-07	2017-09-11
2018	2018-06-10	2018-09-08
2019	2019-07-23	2019-09-03
2020	2020-07-21	2020-09-05
2021	2021-06-02	2021-08-16
2022	2022-06-17	2022-09-28
2023	2023-07-01	2023-09-02
2024	2024-07-08	2024-09-25
2025	2025-05-31	2025-09-25
2026	2026-05-26	2026-08-27

Every Fixed Threshold

Fixed thresholds at Fairfield
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	94	45	1970	28
35 C (95 F): Days	43	6	1971	3
90 F (32.2 C): Days	93	27	1971	13
100 F (37.8 C): Days	6	2	1969	1
0 C (32 F): Ice days (max	94	78	1929	12
0 C (32 F): Frost days (min	97	203	1970	80
-10 C (14 F): Days with min	97	87	1955	14
-20 C (-4 F): Days with min	95	44	1936	5
-30 C (-22 F): Days with min	63	10	1932	5
-40 C (-40 F): Days with min	2	1	1936	1
20 C (68 F): Tropical nights (min	9	3	1936	1
10 mm (0.39 in): Days with 10 mm or more rain	91	21	1975	7
25 mm (0.98 in): Days with 25 mm or more rain	63	5	1995	2
50 mm (1.97 in): Days with 50 mm or more rain	12	2	1975	1
10 cm (3.9 in): Days with 10 cm or more snowfall	66	7	1959	2
25 cm (9.8 in): Days with 25 cm or more snowfall	8	2	2018	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1927.

Download the Data

Data for Fairfield 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).

Fairfield Threshold Days by Year (USC00242857)

Key Facts for Fairfield Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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