Madison Threshold Days by Year (USC00405560)

16 fixed thresholds counted per year at Madison (USC00405560): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Madison Thresholds

Madison: days with 10 mm (0.39 in) or more of precipitation in 19 years, most in 1923 with 51.
Madison: days with 25 mm (0.98 in) or more of precipitation in 19 years, most in 1932 with 20.
Madison: days with 50 mm (1.97 in) or more of precipitation in 17 years, most in 1933 with 6.
Madison: nights with a minimum temperature at or below 0 C (32 F) in 2 years, most in 1899 with 58.
16 fixed thresholds have at least one qualifying day at Madison.

Days with 10 mm (0.39 in) or more of precipitation

19 years with a qualifying day

Days per year at Madison with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 51 in 1923.

Days with 10 mm (0.39 in) or more of precipitation per year at Madison
Year	Days	Decade average
1899	37	37
1923	51	42.8
1924	31	42.8
1925	35	42.8
1926	54	42.8
1927	44	42.8
1928	42	42.8
1931	36	43.3
1932	50	43.3
1933	45	43.3
1937	44	43.3
1938	41	43.3
1939	44	43.3
1940	37	33.8
1941	21	33.8
1942	33	33.8
1943	31	33.8
1944	35	33.8
1945	46	33.8

For each year, a bar from the first to the last day at Madison meeting 10 mm (0.39 in).

First to last qualifying date each year at Madison
Year	First date	Last date
1899	1899-01-04	1899-11-21
1923	1923-01-14	1923-12-31
1924	1924-01-03	1924-12-24
1925	1925-01-11	1925-12-14
1926	1926-01-17	1926-12-28
1927	1927-01-20	1927-12-31
1928	1928-01-08	1928-12-17
1931	1931-01-05	1931-12-24
1932	1932-01-05	1932-12-31
1933	1933-01-09	1933-12-19
1937	1937-01-02	1937-12-27
1938	1938-01-21	1938-12-26
1939	1939-01-05	1939-12-25
1940	1940-01-14	1940-12-27
1941	1941-01-24	1941-12-23
1942	1942-01-01	1942-12-27
1943	1943-01-26	1943-12-28
1944	1944-01-02	1944-12-31
1945	1945-01-01	1945-12-25

Every Fixed Threshold

Fixed thresholds at Madison
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	1	118	1899	118
35 C (95 F): Days	1	38	1899	38
40 C (104 F): Days	1	2	1899	2
90 F (32.2 C): Days	1	88	1899	88
100 F (37.8 C): Days	1	16	1899	16
0 C (32 F): Ice days (max	1	14	1899	14
0 C (32 F): Frost days (min	2	58	1899	58
-10 C (14 F): Days with min	2	16	1899	16
-20 C (-4 F): Days with min	1	6	1899	6
-30 C (-22 F): Days with min	1	1	1899	1
20 C (68 F): Tropical nights (min	2	46	1899	46
25 C (77 F): Days with min	1	0	n/a	2
10 mm (0.39 in): Days with 10 mm or more rain	19	51	1923	46
25 mm (0.98 in): Days with 25 mm or more rain	19	20	1932	15
50 mm (1.97 in): Days with 50 mm or more rain	17	6	1933	2
100 mm (3.94 in): Days with 100 mm or more rain	2	0	n/a	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1899.

Download the Data

Data for Madison 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).

Madison Threshold Days by Year (USC00405560)

Key Facts for Madison Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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