Nights at or below -10 C (14 F) in Chicago

Chicago has had nights with a minimum temperature at or below -10 C (14 F) in 68 years, most in 1963 with 64. Days per year, season span, streaks and every date.

Key Facts for Chicago

Chicago has had nights with a minimum temperature at or below -10 C (14 F) in 68 years, 2,293 days in all.
The most in one year was 64 days in 1963.
In 2026, the latest year on file, there were 19 such days.
The earliest first date in a year was 1 January 1962.
The latest last date in a year was 31 December 1968.
The longest run inside a single year was 23 days in 1963.
2 years with under 90 percent of days observed are left out of these rankings.

Days per Year

68 years, 2,293 days

Days per year in Chicago with a minimum temperature at or below -10 C (14 F). The line is the decade average. The most was 64 in 1963. Grey bars are years with under 90 percent of days observed, left out of rankings.

Nights at or below -10 C (14 F) per year in Chicago
Year	Days	Decade average
1959	39	39
1960	48	42.1
1961	38	42.1
1962	46	42.1
1963	64	42.1
1964	45	42.1
1965	39	42.1
1966	40	42.1
1967	37	42.1
1968	38	42.1
1969	26	42.1
1970	43	41
1971	30	41
1972	44	41
1973	27	41
1974	32	41
1975	25	41
1976	50	41
1977	56	41
1978	57	41
1979	46	41
1980	42	38.8
1981	36	38.8
1982	50	38.8
1983	34	38.8
1984	37	38.8
1985	62	38.8
1986	33	38.8
1987	12	38.8
1988	40	38.8
1989	42	38.8
1990	15	28.1
1991	38	28.1
1992	17	28.1
1993	30	28.1
1994	35	28.1
1995	41	28.1
1996	40	28.1
1997	26	28.1
1998	16	28.1
1999	23	28.1
2000	41	33.1
2001	25	33.1
2002	21	33.1
2003	42	33.1
2004	39	33.1
2005	32	33.1
2006	10	33.1
2007	29	33.1
2008	46	33.1
2009	46	33.1
2010	35	28.8
2011	22	28.8
2012	9	28.8
2013	41	28.8
2014	51	28.8
2015	36	28.8
2016	24	28.8
2017	14	28.8
2018	23	28.8
2019	33	28.8
2020	11	19.3
2021	20	19.3
2022	37	19.3
2023	8	19.3
2024	14	19.3
2025	26	19.3
2026	19	19.3

Season Span

earliest 1 January, latest 31 December

For each year, a bar from the first to the last day in Chicago meeting -10 C (14 F). Long bars mean a long season.

First to last qualifying date each year in Chicago
Year	First date	Last date
1959	1959-01-03	1959-11-29
1960	1960-01-03	1960-12-28
1961	1961-01-03	1961-12-31
1962	1962-01-01	1962-12-31
1963	1963-01-12	1963-12-31
1964	1964-01-01	1964-12-27
1965	1965-01-09	1965-12-28
1966	1966-01-07	1966-12-30
1967	1967-01-03	1967-12-31
1968	1968-01-01	1968-12-31
1969	1969-01-01	1969-12-26
1970	1970-01-02	1970-12-29
1971	1971-01-04	1971-12-28
1972	1972-01-03	1972-12-17
1973	1973-01-04	1973-12-31
1974	1974-01-01	1974-12-26
1975	1975-01-02	1975-12-31
1976	1976-01-03	1976-12-31
1977	1977-01-01	1977-12-28
1978	1978-01-01	1978-12-27
1979	1979-01-01	1979-12-18
1980	1980-01-07	1980-12-26
1981	1981-01-03	1981-12-30
1982	1982-01-01	1982-12-30
1983	1983-01-03	1983-12-31
1984	1984-01-01	1984-12-25
1985	1985-01-01	1985-12-31
1986	1986-01-01	1986-12-13
1987	1987-01-18	1987-12-31
1988	1988-01-01	1988-12-31
1989	1989-01-02	1989-12-27
1990	1990-01-13	1990-12-31
1991	1991-01-01	1991-12-19
1992	1992-01-15	1992-12-31
1993	1993-01-01	1993-12-30
1994	1994-01-05	1994-12-11
1995	1995-01-01	1995-12-28
1996	1996-01-05	1996-12-26
1997	1997-01-06	1997-12-31
1998	1998-01-10	1998-12-31
1999	1999-01-01	1999-12-28
2000	2000-01-05	2000-12-31
2001	2001-01-01	2001-12-31
2002	2002-01-01	2002-12-09
2003	2003-01-10	2003-12-20
2004	2004-01-05	2004-12-27
2005	2005-01-06	2005-12-22
2006	2006-02-17	2006-12-08
2007	2007-01-16	2007-12-23
2008	2008-01-01	2008-12-31
2009	2009-01-05	2009-12-31
2010	2010-01-01	2010-12-29
2011	2011-01-01	2011-12-10
2012	2012-01-03	2012-12-30
2013	2013-01-01	2013-12-31
2014	2014-01-01	2014-12-31
2015	2015-01-04	2015-11-22
2016	2016-01-10	2016-12-19
2017	2017-01-04	2017-12-31
2018	2018-01-01	2018-02-18
2019	2019-01-19	2019-12-18
2020	2020-01-16	2020-12-25
2021	2021-01-20	2021-12-07
2022	2022-01-02	2022-12-27
2023	2023-01-27	2023-03-18
2024	2024-01-13	2024-12-13
2025	2025-01-04	2025-12-30
2026	2026-01-01	2026-03-17

Every Year

Nights at or below -10 C (14 F) per year in Chicago
Year	Days	First date	Last date	Longest streak in year	Coverage
2026	19	1 January 2026	17 March 2026	11 days	Incomplete, not ranked
2025	26	4 January 2025	30 December 2025	6 days	Complete
2024	14	13 January 2024	13 December 2024	9 days	Complete
2023	8	27 January 2023	18 March 2023	6 days	Complete
2022	37	2 January 2022	27 December 2022	7 days	Complete
2021	20	20 January 2021	7 December 2021	13 days	Complete
2020	11	16 January 2020	25 December 2020	4 days	Complete
2019	33	19 January 2019	18 December 2019	9 days	Complete
2018	23	1 January 2018	18 February 2018	5 days	Complete
2017	14	4 January 2017	31 December 2017	14 days	Complete
2016	24	10 January 2016	19 December 2016	6 days	Complete
2015	36	4 January 2015	22 November 2015	9 days	Complete
2014	51	1 January 2014	31 December 2014	14 days	Complete
2013	41	1 January 2013	31 December 2013	7 days	Complete
2012	9	3 January 2012	30 December 2012	3 days	Complete
2011	22	1 January 2011	10 December 2011	4 days	Complete
2010	35	1 January 2010	29 December 2010	5 days	Complete
2009	46	5 January 2009	31 December 2009	21 days	Complete
2008	46	1 January 2008	31 December 2008	9 days	Complete
2007	29	16 January 2007	23 December 2007	15 days	Complete
2006	10	17 February 2006	8 December 2006	4 days	Complete
2005	32	6 January 2005	22 December 2005	9 days	Complete
2004	39	5 January 2004	27 December 2004	9 days	Complete
2003	42	10 January 2003	20 December 2003	8 days	Complete
2002	21	1 January 2002	9 December 2002	3 days	Complete
2001	25	1 January 2001	31 December 2001	6 days	Complete
2000	41	5 January 2000	31 December 2000	12 days	Complete
1999	23	1 January 1999	28 December 1999	10 days	Complete
1998	16	10 January 1998	31 December 1998	5 days	Complete
1997	26	6 January 1997	31 December 1997	10 days	Complete
1996	40	5 January 1996	26 December 1996	11 days	Complete
1995	41	1 January 1995	28 December 1995	11 days	Complete
1994	35	5 January 1994	11 December 1994	13 days	Complete
1993	30	1 January 1993	30 December 1993	7 days	Complete
1992	17	15 January 1992	31 December 1992	5 days	Complete
1991	38	1 January 1991	19 December 1991	11 days	Complete
1990	15	13 January 1990	31 December 1990	6 days	Complete
1989	42	2 January 1989	27 December 1989	17 days	Complete
1988	40	1 January 1988	31 December 1988	11 days	Complete
1987	12	18 January 1987	31 December 1987	6 days	Complete
1986	33	1 January 1986	13 December 1986	7 days	Complete
1985	62	1 January 1985	31 December 1985	12 days	Complete
1984	37	1 January 1984	25 December 1984	9 days	Complete
1983	34	3 January 1983	31 December 1983	11 days	Complete
1982	50	1 January 1982	30 December 1982	15 days	Complete
1981	36	3 January 1981	30 December 1981	6 days	Complete
1980	42	7 January 1980	26 December 1980	14 days	Complete
1979	46	1 January 1979	18 December 1979	14 days	Complete
1978	57	1 January 1978	27 December 1978	15 days	Complete
1977	56	1 January 1977	28 December 1977	18 days	Complete
1976	50	3 January 1976	31 December 1976	12 days	Complete
1975	25	2 January 1975	31 December 1975	5 days	Complete
1974	32	1 January 1974	26 December 1974	5 days	Complete
1973	27	4 January 1973	31 December 1973	16 days	Complete
1972	44	3 January 1972	17 December 1972	9 days	Complete
1971	30	4 January 1971	28 December 1971	8 days	Complete
1970	43	2 January 1970	29 December 1970	9 days	Complete
1969	26	1 January 1969	26 December 1969	7 days	Complete
1968	38	1 January 1968	31 December 1968	8 days	Complete
1967	37	3 January 1967	31 December 1967	7 days	Complete
1966	40	7 January 1966	30 December 1966	14 days	Complete
1965	39	9 January 1965	28 December 1965	11 days	Complete
1964	45	1 January 1964	27 December 1964	5 days	Complete
1963	64	12 January 1963	31 December 1963	23 days	Complete
1962	46	1 January 1962	31 December 1962	9 days	Complete
1961	38	3 January 1961	31 December 1961	13 days	Complete
1960	48	3 January 1960	28 December 1960	10 days	Complete
1959	39	3 January 1959	29 November 1959	10 days	Complete

Decade averages for Nights at or below -10 C (14 F) in Chicago
Decade	Average days per year	Years counted
1950s	39.0	1
1960s	42.1	10
1970s	41.0	10
1980s	38.8	10
1990s	28.1	10
2000s	33.1	10
2010s	28.8	10
2020s	19.3	6

Compare with your own threshold in the threshold explorer. Fahrenheit thresholds are converted to tenths of a degree Celsius once, rounding half up.

Download the Data

Data for Nights at or below -10 C (14 F) in Chicago, 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 from the threaded city record.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).