De Kalb Threshold Days by Year (USC00112223)

18 fixed thresholds counted per year at De Kalb (USC00112223): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for De Kalb Thresholds

De Kalb: days with a maximum temperature at or above 30 C (86 F) in 56 years, most in 1983 with 63.
De Kalb: days with a maximum temperature at or above 90 F (32.2 C) in 56 years, most in 1988 with 41.
De Kalb: days with a maximum temperature at or below 0 C (32 F) in 56 years, most in 2014 with 82.
De Kalb: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 2015 with 43.
18 fixed thresholds have at least one qualifying day at De Kalb.

Days at or above 30 C (86 F)

56 years with a qualifying day

Days per year at De Kalb with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 63 in 1983.

Days at or above 30 C (86 F) per year at De Kalb
Year	Days	Decade average
1967	16	21
1969	26	21
1970	47	43.2
1971	46	43.2
1972	40	43.2
1973	46	43.2
1974	30	43.2
1975	47	43.2
1976	55	43.2
1977	43	43.2
1978	44	43.2
1979	34	43.2
1980	50	41.3
1981	21	41.3
1983	63	41.3
1984	53	41.3
1985	27	41.3
1986	28	41.3
1987	25	41.3
1988	63	41.3
1990	17	30.6
1992	15	30.6
1993	24	30.6
1994	44	30.6
1995	55	30.6
1996	19	30.6
1997	28	30.6
1998	34	30.6
1999	39	30.6
2000	15	29.7
2001	39	29.7
2002	47	29.7
2003	29	29.7
2004	10	29.7
2005	55	29.7
2006	28	29.7
2007	44	29.7
2008	20	29.7
2009	10	29.7
2010	44	32.4
2011	43	32.4
2012	58	32.4
2013	27	32.4
2014	9	32.4
2015	20	32.4
2016	33	32.4
2017	24	32.4
2018	39	32.4
2019	27	32.4
2020	35	31.4
2021	36	31.4
2022	23	31.4
2023	26	31.4
2024	32	31.4
2025	40	31.4
2026	28	31.4

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

First to last qualifying date each year at De Kalb
Year	First date	Last date
1967	1967-05-25	1967-08-02
1969	1969-05-28	1969-08-31
1970	1970-04-29	1970-09-21
1971	1971-05-17	1971-10-02
1972	1972-05-18	1972-09-21
1973	1973-06-08	1973-09-03
1974	1974-06-20	1974-08-27
1975	1975-05-18	1975-10-13
1976	1976-06-06	1976-10-03
1977	1977-05-16	1977-09-01
1978	1978-05-26	1978-09-20
1979	1979-05-08	1979-09-11
1980	1980-04-22	1980-09-08
1981	1981-06-07	1981-09-10
1983	1983-06-11	1983-09-11
1984	1984-05-18	1984-09-20
1985	1985-04-18	1985-09-19
1986	1986-04-26	1986-09-29
1987	1987-04-21	1987-09-06
1988	1988-05-29	1988-09-23
1990	1990-04-26	1990-09-06
1992	1992-05-02	1992-08-26
1993	1993-05-10	1993-08-31
1994	1994-04-26	1994-09-21
1995	1995-06-07	1995-09-06
1996	1996-05-18	1996-08-23
1997	1997-06-20	1997-10-08
1998	1998-05-15	1998-09-27
1999	1999-05-29	1999-09-06
2000	2000-05-25	2000-09-19
2001	2001-05-16	2001-09-08
2002	2002-04-16	2002-09-30
2003	2003-04-16	2003-09-09
2004	2004-05-07	2004-08-04
2005	2005-06-05	2005-10-05
2006	2006-05-28	2006-08-24
2007	2007-05-15	2007-10-09
2008	2008-06-03	2008-09-03
2009	2009-06-20	2009-08-10
2010	2010-05-24	2010-10-10
2011	2011-05-11	2011-09-03
2012	2012-05-16	2012-09-13
2013	2013-05-15	2013-09-20
2014	2014-05-09	2014-09-06
2015	2015-06-10	2015-09-07
2016	2016-05-25	2016-09-26
2017	2017-05-17	2017-09-27
2018	2018-05-25	2018-10-04
2019	2019-06-27	2019-09-11
2020	2020-05-25	2020-08-29
2021	2021-05-25	2021-09-28
2022	2022-05-11	2022-09-21
2023	2023-05-08	2023-09-05
2024	2024-05-19	2024-09-22
2025	2025-05-16	2025-10-05
2026	2026-05-18	2026-10-13

Every Fixed Threshold

Fixed thresholds at De Kalb
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	56	63	1983	28
35 C (95 F): Days	31	23	1988	1
90 F (32.2 C): Days	56	41	1988	12
100 F (37.8 C): Days	3	5	1988	2
0 C (32 F): Ice days (max	56	82	2014	34
0 C (32 F): Frost days (min	52	164	2018	82
-10 C (14 F): Days with min	52	74	2014	27
-20 C (-4 F): Days with min	50	25	1977	6
-30 C (-22 F): Days with min	8	3	2019	3
20 C (68 F): Tropical nights (min	52	43	1983	25
25 C (77 F): Days with min	12	2	1980	1
10 mm (0.39 in): Days with 10 mm or more rain	56	43	2015	31
25 mm (0.98 in): Days with 25 mm or more rain	56	20	1972	8
50 mm (1.97 in): Days with 50 mm or more rain	42	4	1970	1
100 mm (3.94 in): Days with 100 mm or more rain	6	2	1996	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1996	1
10 cm (3.9 in): Days with 10 cm or more snowfall	42	8	2008	2
25 cm (9.8 in): Days with 25 cm or more snowfall	4	1	1967	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1967.

Download the Data

Data for De Kalb 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).

De Kalb Threshold Days by Year (USC00112223)

Key Facts for De Kalb Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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