Marion 4 NNE Threshold Days by Year

18 fixed thresholds counted per year at Marion 4 NNE (USC00115342): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Marion 4 NNE Thresholds

Marion 4 NNE: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 1984 with 52.
Marion 4 NNE: days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 1950 with 23.
Marion 4 NNE: days with 50 mm (1.97 in) or more of precipitation in 52 years, most in 1950 with 7.
Marion 4 NNE: days with 10 cm (3.9 in) or more of snowfall in 36 years, most in 1970 with 4.
18 fixed thresholds have at least one qualifying day at Marion 4 NNE.

Days at or above 30 C (86 F)

30 years with a qualifying day

Days per year at Marion 4 NNE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 98 in 1980.

Days at or above 30 C (86 F) per year at Marion 4 NNE
Year	Days	Decade average
1947	70	70
1969	67	67
1970	64	55.6
1971	65	55.6
1972	54	55.6
1973	59	55.6
1974	30	55.6
1975	58	55.6
1976	30	55.6
1977	69	55.6
1978	68	55.6
1979	59	55.6
1980	98	73.9
1981	65	73.9
1982	65	73.9
1983	95	73.9
1984	69	73.9
1985	58	73.9
1986	78	73.9
1987	96	73.9
1988	70	73.9
1989	45	73.9
1990	44	49.8
1991	67	49.8
1992	28	49.8
1993	58	49.8
1994	45	49.8
1995	58	49.8
1996	52	49.8
1997	46	49.8

For each year, a bar from the first to the last day at Marion 4 NNE meeting 30 C (86 F).

First to last qualifying date each year at Marion 4 NNE
Year	First date	Last date
1947	1947-05-13	1947-09-19
1969	1969-05-05	1969-10-05
1970	1970-05-21	1970-09-23
1971	1971-06-04	1971-10-03
1972	1972-05-22	1972-09-21
1973	1973-06-10	1973-10-04
1974	1974-05-21	1974-08-29
1975	1975-05-21	1975-10-14
1976	1976-06-13	1976-09-20
1977	1977-04-17	1977-09-10
1978	1978-05-25	1978-09-21
1979	1979-06-06	1979-10-22
1980	1980-04-23	1980-10-10
1981	1981-04-28	1981-10-06
1982	1982-05-17	1982-10-07
1983	1983-06-11	1983-10-04
1984	1984-05-26	1984-09-22
1985	1985-05-13	1985-09-23
1986	1986-04-26	1986-10-05
1987	1987-04-21	1987-09-29
1988	1988-05-15	1988-09-23
1989	1989-04-27	1989-10-14
1990	1990-06-08	1990-09-08
1991	1991-05-18	1991-09-17
1992	1992-06-17	1992-09-10
1993	1993-05-09	1993-09-03
1994	1994-06-02	1994-09-15
1995	1995-06-08	1995-09-15
1996	1996-05-19	1996-09-12
1997	1997-05-19	1997-09-22

Every Fixed Threshold

Fixed thresholds at Marion 4 NNE
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	30	98	1980	46
35 C (95 F): Days	24	45	1980	1
40 C (104 F): Days	2	2	1983	2
90 F (32.2 C): Days	30	74	1980	14
100 F (37.8 C): Days	6	13	1983	1
0 C (32 F): Ice days (max	30	50	1978	21
0 C (32 F): Frost days (min	30	129	1988	96
-10 C (14 F): Days with min	30	50	1978	15
-20 C (-4 F): Days with min	19	11	1977	5
-30 C (-22 F): Days with min	1	2	1977	2
20 C (68 F): Tropical nights (min	30	62	1947	35
25 C (77 F): Days with min	2	1	1987	1
10 mm (0.39 in): Days with 10 mm or more rain	56	52	1984	11
25 mm (0.98 in): Days with 25 mm or more rain	56	23	1950	5
50 mm (1.97 in): Days with 50 mm or more rain	52	7	1950	2
100 mm (3.94 in): Days with 100 mm or more rain	9	2	1996	2
10 cm (3.9 in): Days with 10 cm or more snowfall	36	4	1970	1
25 cm (9.8 in): Days with 25 cm or more snowfall	3	1	1970	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1947.

Download the Data

Data for Marion 4 NNE 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Marion 4 NNE Threshold Days by Year

Key Facts for Marion 4 NNE Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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