Madison Threshold Days by Year (USC00144937)

19 fixed thresholds counted per year at Madison (USC00144937): 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 96 years, most in 1915 with 50.
Madison: days with 25 mm (0.98 in) or more of precipitation in 96 years, most in 1961 with 19.
Madison: days with 50 mm (1.97 in) or more of precipitation in 87 years, most in 2005 with 10.
Madison: days with 10 cm (3.9 in) or more of snowfall in 42 years, most in 1975 with 5.
19 fixed thresholds have at least one qualifying day at Madison.

Days at or above 30 C (86 F)

12 years with a qualifying day

Days per year at Madison with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 112 in 1911.

Days at or above 30 C (86 F) per year at Madison
Year	Days	Decade average
1901	106	78.2
1903	53	78.2
1904	51	78.2
1905	90	78.2
1907	89	78.2
1908	80	78.2
1911	112	89.7
1912	84	89.7
1914	104	89.7
1915	56	89.7
1916	102	89.7
1917	80	89.7

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

First to last qualifying date each year at Madison
Year	First date	Last date
1901	1901-04-25	1901-10-01
1903	1903-04-01	1903-09-25
1904	1904-05-23	1904-09-30
1905	1905-04-08	1905-10-02
1907	1907-03-19	1907-10-02
1908	1908-03-27	1908-10-17
1911	1911-04-29	1911-10-14
1912	1912-05-02	1912-10-06
1914	1914-03-15	1914-09-21
1915	1915-04-27	1915-11-06
1916	1916-03-12	1916-10-08
1917	1917-04-22	1917-10-15

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	12	112	1911	80
35 C (95 F): Days	12	50	1911	29
40 C (104 F): Days	6	8	1901	4
90 F (32.2 C): Days	12	88	1901	58
100 F (37.8 C): Days	9	23	1901	13
110 F (43.3 C): Days	1	1	1911	1
0 C (32 F): Ice days (max	12	31	1905	29
0 C (32 F): Frost days (min	12	142	1912	115
-10 C (14 F): Days with min	12	44	1912	33
-20 C (-4 F): Days with min	10	11	1905	7
-30 C (-22 F): Days with min	2	1	1903	1
20 C (68 F): Tropical nights (min	12	56	1914	33
25 C (77 F): Days with min	4	2	1916	2
10 mm (0.39 in): Days with 10 mm or more rain	96	50	1915	21
25 mm (0.98 in): Days with 25 mm or more rain	96	19	1961	11
50 mm (1.97 in): Days with 50 mm or more rain	87	10	2005	6
100 mm (3.94 in): Days with 100 mm or more rain	23	3	1961	2
10 cm (3.9 in): Days with 10 cm or more snowfall	42	5	1975	1
25 cm (9.8 in): Days with 25 cm or more snowfall	4	1	1962	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1901.

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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Madison Threshold Days by Year (USC00144937)

Key Facts for Madison Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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