Tiskilwa 2 SE Threshold Days by Year (USC00118604)

18 fixed thresholds counted per year at Tiskilwa 2 SE (USC00118604): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tiskilwa 2 SE Thresholds

Tiskilwa 2 SE: days with 10 mm (0.39 in) or more of precipitation in 86 years, most in 1926 with 41.
Tiskilwa 2 SE: days with 25 mm (0.98 in) or more of precipitation in 86 years, most in 1970 with 20.
Tiskilwa 2 SE: days with 50 mm (1.97 in) or more of precipitation in 69 years, most in 1970 with 5.
Tiskilwa 2 SE: days with 10 cm (3.9 in) or more of snowfall in 42 years, most in 1926 with 5.
18 fixed thresholds have at least one qualifying day at Tiskilwa 2 SE.

Days at or above 30 C (86 F)

32 years with a qualifying day

Days per year at Tiskilwa 2 SE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 79 in 1971.

Days at or above 30 C (86 F) per year at Tiskilwa 2 SE
Year	Days	Decade average
1898	41	50
1899	59	50
1900	54	31.7
1901	57	31.7
1902	17	31.7
1903	18	31.7
1904	12	31.7
1909	32	31.7
1964	69	53.2
1965	51	53.2
1966	60	53.2
1967	39	53.2
1968	52	53.2
1969	48	53.2
1970	50	49.9
1971	79	49.9
1972	55	49.9
1973	46	49.9
1974	37	49.9
1975	51	49.9
1976	41	49.9
1977	47	49.9
1978	54	49.9
1979	39	49.9
1982	40	53.8
1983	74	53.8
1984	52	53.8
1985	47	53.8
1986	44	53.8
1987	69	53.8
1988	67	53.8
1989	37	53.8

For each year, a bar from the first to the last day at Tiskilwa 2 SE meeting 30 C (86 F).

First to last qualifying date each year at Tiskilwa 2 SE
Year	First date	Last date
1898	1898-06-02	1898-09-04
1899	1899-04-26	1899-09-16
1900	1900-05-13	1900-09-25
1901	1901-04-29	1901-09-09
1902	1902-04-21	1902-08-02
1903	1903-05-26	1903-08-24
1904	1904-05-24	1904-09-11
1909	1909-05-05	1909-09-20
1964	1964-05-17	1964-09-21
1965	1965-05-01	1965-09-19
1966	1966-05-05	1966-09-13
1967	1967-04-16	1967-10-04
1968	1968-05-03	1968-09-23
1969	1969-05-04	1969-10-05
1970	1970-04-29	1970-09-21
1971	1971-04-12	1971-10-02
1972	1972-05-18	1972-09-21
1973	1973-06-08	1973-09-02
1974	1974-05-21	1974-08-27
1975	1975-05-18	1975-09-01
1976	1976-06-08	1976-10-02
1977	1977-04-18	1977-09-01
1978	1978-05-26	1978-09-20
1979	1979-05-08	1979-10-21
1982	1982-05-05	1982-10-05
1983	1983-06-09	1983-09-18
1984	1984-05-18	1984-09-24
1985	1985-04-18	1985-09-20
1986	1986-04-25	1986-09-27
1987	1987-04-20	1987-09-05
1988	1988-05-28	1988-09-22
1989	1989-05-24	1989-08-22

Every Fixed Threshold

Fixed thresholds at Tiskilwa 2 SE
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	32	79	1971	37
35 C (95 F): Days	26	21	1988	11
40 C (104 F): Days	2	2	1901	2
90 F (32.2 C): Days	32	50	1983	24
100 F (37.8 C): Days	8	9	1988	3
0 C (32 F): Ice days (max	32	69	1978	43
0 C (32 F): Frost days (min	32	161	1969	146
-10 C (14 F): Days with min	32	65	1985	58
-20 C (-4 F): Days with min	32	21	1977	12
-30 C (-22 F): Days with min	7	1	1899	1
20 C (68 F): Tropical nights (min	32	32	1901	6
25 C (77 F): Days with min	7	1	1900	1
10 mm (0.39 in): Days with 10 mm or more rain	86	41	1926	22
25 mm (0.98 in): Days with 25 mm or more rain	86	20	1970	5
50 mm (1.97 in): Days with 50 mm or more rain	69	5	1970	2
100 mm (3.94 in): Days with 100 mm or more rain	6	1	1898	1
10 cm (3.9 in): Days with 10 cm or more snowfall	42	5	1926	2
25 cm (9.8 in): Days with 25 cm or more snowfall	5	1	1918	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1898.

Download the Data

Data for Tiskilwa 2 SE 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Tiskilwa 2 SE Threshold Days by Year (USC00118604)

Key Facts for Tiskilwa 2 SE Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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