Marion Threshold Days by Year (USC00155148)

16 fixed thresholds counted per year at Marion (USC00155148): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Marion Thresholds

Marion: nights with a minimum temperature at or below 0 C (32 F) in 26 years, most in 1901 with 109.
Marion: nights with a minimum temperature at or above 20 C (68 F) in 26 years, most in 1921 with 90.
Marion: days with 10 mm (0.39 in) or more of precipitation in 26 years, most in 1927 with 55.
Marion: days with 25 mm (0.98 in) or more of precipitation in 26 years, most in 1927 with 20.
16 fixed thresholds have at least one qualifying day at Marion.

Days at or above 30 C (86 F)

25 years with a qualifying day

Days per year at Marion with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 117 in 1896.

Days at or above 30 C (86 F) per year at Marion
Year	Days	Decade average
1894	113	109.5
1895	113	109.5
1896	117	109.5
1899	95	109.5
1901	93	85.2
1905	79	85.2
1906	91	85.2
1908	89	85.2
1909	74	85.2
1910	81	77.2
1911	100	77.2
1912	52	77.2
1915	66	77.2
1919	87	77.2
1920	61	78.6
1921	107	78.6
1922	88	78.6
1923	65	78.6
1924	58	78.6
1925	100	78.6
1926	106	78.6
1927	54	78.6
1928	68	78.6
1930	65	81.5
1931	98	81.5

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

First to last qualifying date each year at Marion
Year	First date	Last date
1894	1894-04-17	1894-10-21
1895	1895-04-01	1895-09-26
1896	1896-04-11	1896-09-18
1899	1899-04-27	1899-10-16
1901	1901-04-30	1901-10-31
1905	1905-05-29	1905-10-08
1906	1906-04-12	1906-09-23
1908	1908-04-24	1908-10-21
1909	1909-06-06	1909-10-09
1910	1910-03-23	1910-10-19
1911	1911-05-09	1911-10-15
1912	1912-05-23	1912-10-11
1915	1915-04-19	1915-09-27
1919	1919-05-29	1919-10-03
1920	1920-05-23	1920-09-27
1921	1921-04-24	1921-10-26
1922	1922-05-12	1922-10-06
1923	1923-06-05	1923-09-30
1924	1924-04-17	1924-10-19
1925	1925-04-24	1925-09-21
1926	1926-05-24	1926-10-04
1927	1927-06-10	1927-09-18
1928	1928-05-10	1928-10-16
1930	1930-04-11	1930-10-17
1931	1931-04-18	1931-10-05

Every Fixed Threshold

Fixed thresholds at Marion
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	25	117	1896	98
35 C (95 F): Days	24	45	1894	22
40 C (104 F): Days	5	5	1901	5
90 F (32.2 C): Days	25	83	1894	65
100 F (37.8 C): Days	14	15	1894	2
0 C (32 F): Ice days (max	25	24	1905	2
0 C (32 F): Frost days (min	26	109	1901	61
-10 C (14 F): Days with min	25	27	1895	3
-20 C (-4 F): Days with min	11	5	1901	2
-30 C (-22 F): Days with min	1	2	1901	2
20 C (68 F): Tropical nights (min	26	90	1921	79
25 C (77 F): Days with min	11	6	1928	4
10 mm (0.39 in): Days with 10 mm or more rain	26	55	1927	33
25 mm (0.98 in): Days with 25 mm or more rain	26	20	1927	13
50 mm (1.97 in): Days with 50 mm or more rain	22	8	1906	2
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1895	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1894.

Download the Data

Data for Marion 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).

Marion Threshold Days by Year (USC00155148)

Key Facts for Marion Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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