Marion Threshold Days by Year (USC00445266)

14 fixed thresholds counted per year at Marion (USC00445266): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Marion Thresholds

Marion: days with 10 mm (0.39 in) or more of precipitation in 23 years, most in 1957 with 48.
Marion: days with 25 mm (0.98 in) or more of precipitation in 23 years, most in 1906 with 12.
Marion: days with 50 mm (1.97 in) or more of precipitation in 12 years, most in 1906 with 2.
Marion: days with a maximum temperature at or above 30 C (86 F) in 11 years, most in 1925 with 67.
14 fixed thresholds have at least one qualifying day at Marion.

Days at or above 30 C (86 F)

11 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 67 in 1925.

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
1899	1899-05-01	1899-09-08
1906	1906-06-04	1906-09-09
1907	1907-06-21	1907-08-31
1908	1908-05-13	1908-09-20
1909	1909-06-08	1909-08-29
1910	1910-06-19	1910-10-17
1923	1923-06-02	1923-09-25
1924	1924-05-06	1924-09-01
1925	1925-04-24	1925-09-21
1926	1926-05-07	1926-10-04
1927	1927-05-09	1927-10-06

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	11	67	1925	32
35 C (95 F): Days	3	5	1925	5
90 F (32.2 C): Days	10	30	1925	10
100 F (37.8 C): Days	1	1	1926	1
0 C (32 F): Ice days (max	11	11	1899	8
0 C (32 F): Frost days (min	11	129	1910	82
-10 C (14 F): Days with min	11	25	1910	10
-20 C (-4 F): Days with min	3	6	1899	1
20 C (68 F): Tropical nights (min	7	6	1923	4
10 mm (0.39 in): Days with 10 mm or more rain	23	48	1957	45
25 mm (0.98 in): Days with 25 mm or more rain	23	12	1906	12
50 mm (1.97 in): Days with 50 mm or more rain	12	2	1906	2
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1923	1
10 cm (3.9 in): Days with 10 cm or more snowfall	1	1	1950	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 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).

Year	Days	Decade average
1899	65	65
1906	21	19.8
1907	15	19.8
1908	30	19.8
1909	13	19.8
1910	9	9
1923	31	43
1924	27	43
1925	67	43
1926	58	43
1927	32	43

Marion Threshold Days by Year (USC00445266)

Key Facts for Marion Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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