Primghar Threshold Days by Year (USC00136800)

17 fixed thresholds counted per year at Primghar (USC00136800): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Primghar Thresholds

Primghar: days with 10 mm (0.39 in) or more of precipitation in 84 years, most in 1993 with 39.
Primghar: days with 25 mm (0.98 in) or more of precipitation in 84 years, most in 2018 with 16.
Primghar: nights with a minimum temperature at or below 0 C (32 F) in 83 years, most in 2013 with 177.
Primghar: nights with a minimum temperature at or below -10 C (14 F) in 83 years, most in 1978 with 89.
17 fixed thresholds have at least one qualifying day at Primghar.

Days at or above 30 C (86 F)

82 years with a qualifying day

Days per year at Primghar with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 82 in 1939.

Days at or above 30 C (86 F) per year at Primghar
Year	Days	Decade average
1896	43	50
1897	62	50
1899	45	50
1900	56	56
1937	66	71.3
1938	66	71.3
1939	82	71.3
1940	53	52.8
1941	65	52.8
1942	42	52.8
1947	51	52.8
1948	48	52.8
1949	58	52.8
1950	30	48.4
1952	49	48.4
1953	54	48.4
1956	58	48.4
1957	42	48.4
1958	48	48.4
1959	58	48.4
1960	42	44.6
1961	48	44.6
1962	26	44.6
1963	59	44.6
1964	60	44.6
1965	43	44.6
1966	51	44.6
1967	38	44.6
1968	44	44.6
1969	35	44.6
1970	75	56.4
1971	51	56.4
1972	49	56.4
1973	49	56.4
1974	52	56.4
1975	59	56.4
1976	66	56.4
1977	47	56.4
1978	60	56.4
1980	68	51.1
1981	45	51.1
1982	30	51.1
1983	63	51.1
1984	44	51.1
1985	41	51.1
1986	41	51.1
1987	70	51.1
1988	71	51.1
1989	38	51.1
1990	46	26.6
1991	42	26.6
1992	11	26.6
1993	13	26.6
1994	22	26.6
1995	35	26.6
1997	20	26.6
1998	26	26.6
1999	24	26.6
2000	26	34.3
2002	47	34.3
2003	24	34.3
2006	44	34.3
2007	59	34.3
2008	21	34.3
2009	19	34.3
2010	39	42.2
2011	47	42.2
2012	75	42.2
2013	52	42.2
2014	14	42.2
2015	29	42.2
2016	43	42.2
2017	48	42.2
2018	44	42.2
2019	31	42.2
2020	64	53.3
2021	48	53.3
2022	64	53.3
2023	52	53.3
2024	30	53.3
2025	61	53.3
2026	54	53.3

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

First to last qualifying date each year at Primghar
Year	First date	Last date
1896	1896-05-08	1896-09-08
1897	1897-06-10	1897-10-04
1899	1899-05-11	1899-10-12
1900	1900-05-11	1900-09-10
1937	1937-05-28	1937-10-29
1938	1938-06-05	1938-10-16
1939	1939-04-23	1939-10-06
1940	1940-05-12	1940-09-22
1941	1941-05-14	1941-09-20
1942	1942-05-29	1942-09-30
1947	1947-06-09	1947-10-21
1948	1948-05-20	1948-09-19
1949	1949-04-25	1949-09-20
1950	1950-05-23	1950-10-31
1952	1952-05-03	1952-09-30
1953	1953-05-29	1953-10-03
1956	1956-05-21	1956-09-28
1957	1957-06-04	1957-09-01
1958	1958-05-12	1958-10-16
1959	1959-05-01	1959-09-09
1960	1960-05-15	1960-09-08
1961	1961-05-31	1961-09-10
1962	1962-04-25	1962-08-27
1963	1963-05-08	1963-10-06
1964	1964-04-16	1964-09-10
1965	1965-04-29	1965-08-26
1966	1966-05-04	1966-09-10
1967	1967-05-18	1967-10-01
1968	1968-04-30	1968-08-24
1969	1969-05-26	1969-08-30
1970	1970-04-27	1970-09-21
1971	1971-06-03	1971-09-08
1972	1972-05-16	1972-09-20
1973	1973-05-21	1973-08-31
1974	1974-05-28	1974-09-27
1975	1975-05-19	1975-10-14
1976	1976-06-05	1976-10-03
1977	1977-04-09	1977-09-08
1978	1978-05-19	1978-09-12
1980	1980-04-20	1980-09-19
1981	1981-04-25	1981-09-30
1982	1982-06-23	1982-08-20
1983	1983-05-27	1983-09-26
1984	1984-06-16	1984-09-20
1985	1985-04-17	1985-09-08
1986	1986-05-31	1986-08-26
1987	1987-04-19	1987-09-27
1988	1988-05-12	1988-09-18
1989	1989-05-23	1989-09-01
1990	1990-04-22	1990-09-28
1991	1991-04-06	1991-09-07
1992	1992-04-30	1992-10-03
1993	1993-06-22	1993-08-27
1994	1994-04-18	1994-09-15
1995	1995-06-15	1995-08-28
1997	1997-06-19	1997-10-03
1998	1998-05-18	1998-09-19
1999	1999-06-08	1999-09-04
2000	2000-06-08	2000-09-17
2002	2002-04-15	2002-09-09
2003	2003-06-24	2003-09-07
2006	2006-04-13	2006-10-03
2007	2007-04-29	2007-10-06
2008	2008-07-06	2008-09-20
2009	2009-04-23	2009-08-14
2010	2010-05-23	2010-10-08
2011	2011-05-10	2011-10-04
2012	2012-04-01	2012-09-12
2013	2013-05-14	2013-09-28
2014	2014-05-07	2014-08-22
2015	2015-05-04	2015-09-17
2016	2016-05-06	2016-09-24
2017	2017-05-08	2017-09-24
2018	2018-05-24	2018-10-04
2019	2019-05-16	2019-10-01
2020	2020-05-01	2020-09-07
2021	2021-05-01	2021-09-29
2022	2022-05-11	2022-09-21
2023	2023-04-12	2023-10-03
2024	2024-06-04	2024-09-29
2025	2025-03-28	2025-10-05
2026	2026-03-21	2026-10-12

Every Fixed Threshold

Fixed thresholds at Primghar
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	82	82	1939	54
35 C (95 F): Days	68	23	1947	2
90 F (32.2 C): Days	80	46	2012	20
100 F (37.8 C): Days	15	7	1988	1
0 C (32 F): Ice days (max	82	101	1978	26
0 C (32 F): Frost days (min	83	177	2013	82
-10 C (14 F): Days with min	83	89	1978	29
-20 C (-4 F): Days with min	83	38	1978	8
-30 C (-22 F): Days with min	37	6	1899	1
20 C (68 F): Tropical nights (min	83	38	1983	26
25 C (77 F): Days with min	16	4	1900	1
10 mm (0.39 in): Days with 10 mm or more rain	84	39	1993	21
25 mm (0.98 in): Days with 25 mm or more rain	84	16	2018	9
50 mm (1.97 in): Days with 50 mm or more rain	63	6	1900	1
100 mm (3.94 in): Days with 100 mm or more rain	13	3	1900	1
10 cm (3.9 in): Days with 10 cm or more snowfall	59	7	1993	3
25 cm (9.8 in): Days with 25 cm or more snowfall	12	2	1940	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

Download the Data

Data for Primghar 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).

Primghar Threshold Days by Year (USC00136800)

Key Facts for Primghar Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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