Rosholt Threshold Days by Year (USC00477349)

18 fixed thresholds counted per year at Rosholt (USC00477349): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rosholt Thresholds

Rosholt: days with 10 mm (0.39 in) or more of precipitation in 77 years, most in 2019 with 41.
Rosholt: days with 25 mm (0.98 in) or more of precipitation in 77 years, most in 2024 with 15.
Rosholt: days with 10 cm (3.9 in) or more of snowfall in 71 years, most in 2019 with 12.
Rosholt: days with a maximum temperature at or below 0 C (32 F) in 70 years, most in 1955 with 102.
18 fixed thresholds have at least one qualifying day at Rosholt.

Days at or above 30 C (86 F)

69 years with a qualifying day

Days per year at Rosholt with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 43 in 1949.

Days at or above 30 C (86 F) per year at Rosholt
Year	Days	Decade average
1948	41	42
1949	43	42
1950	23	18.2
1951	3	18.2
1952	23	18.2
1953	18	18.2
1954	10	18.2
1955	35	18.2
1956	6	18.2
1957	11	18.2
1959	35	18.2
1960	23	27.4
1961	30	27.4
1962	24	27.4
1963	40	27.4
1964	33	27.4
1965	17	27.4
1966	37	27.4
1967	16	27.4
1968	29	27.4
1969	25	27.4
1970	39	30.8
1971	26	30.8
1972	32	30.8
1973	28	30.8
1974	18	30.8
1975	42	30.8
1981	7	15.1
1982	6	15.1
1983	28	15.1
1984	7	15.1
1985	8	15.1
1987	15	15.1
1988	41	15.1
1989	9	15.1
1990	6	11.4
1991	19	11.4
1992	5	11.4
1993	2	11.4
1995	23	11.4
1996	5	11.4
1997	16	11.4
1998	9	11.4
1999	18	11.4
2000	5	14
2001	14	14
2002	17	14
2003	18	14
2004	5	14
2005	27	14
2006	24	14
2007	19	14
2008	7	14
2009	4	14
2010	13	17.9
2011	15	17.9
2012	40	17.9
2014	7	17.9
2015	11	17.9
2016	17	17.9
2017	14	17.9
2018	33	17.9
2019	11	17.9
2020	26	19
2021	17	19
2022	14	19
2023	28	19
2024	12	19
2025	17	19

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

First to last qualifying date each year at Rosholt
Year	First date	Last date
1948	1948-05-20	1948-09-18
1949	1949-05-03	1949-08-26
1950	1950-05-23	1950-08-23
1951	1951-07-24	1951-07-29
1952	1952-04-28	1952-09-13
1953	1953-06-12	1953-09-02
1954	1954-06-13	1954-09-06
1955	1955-06-30	1955-09-18
1956	1956-06-10	1956-08-04
1957	1957-06-17	1957-09-01
1959	1959-05-02	1959-09-09
1960	1960-07-08	1960-09-08
1961	1961-05-13	1961-09-10
1962	1962-04-26	1962-08-30
1963	1963-06-02	1963-10-06
1964	1964-05-22	1964-09-03
1965	1965-05-07	1965-08-14
1966	1966-05-26	1966-09-02
1967	1967-05-26	1967-08-25
1968	1968-05-15	1968-08-24
1969	1969-05-27	1969-09-07
1970	1970-04-29	1970-09-02
1971	1971-06-04	1971-09-08
1972	1972-05-17	1972-08-30
1973	1973-06-09	1973-09-03
1974	1974-05-21	1974-08-20
1975	1975-05-19	1975-08-23
1981	1981-07-06	1981-08-13
1982	1982-07-05	1982-08-03
1983	1983-06-21	1983-09-09
1984	1984-07-22	1984-08-29
1985	1985-06-08	1985-08-07
1987	1987-06-06	1987-08-02
1988	1988-05-31	1988-08-16
1989	1989-07-02	1989-08-04
1990	1990-04-24	1990-09-04
1991	1991-05-14	1991-09-07
1992	1992-05-01	1992-08-24
1993	1993-08-12	1993-08-26
1995	1995-06-18	1995-08-31
1996	1996-06-21	1996-08-07
1997	1997-06-23	1997-08-03
1998	1998-05-19	1998-09-14
1999	1999-06-06	1999-09-05
2000	2000-06-09	2000-09-19
2001	2001-06-14	2001-08-23
2002	2002-04-16	2002-09-10
2003	2003-06-25	2003-09-09
2004	2004-06-08	2004-09-03
2005	2005-06-08	2005-09-13
2006	2006-05-29	2006-08-02
2007	2007-06-15	2007-09-06
2008	2008-07-08	2008-09-03
2009	2009-05-21	2009-08-15
2010	2010-05-24	2010-08-31
2011	2011-05-31	2011-09-02
2012	2012-05-19	2012-09-01
2014	2014-06-01	2014-08-26
2015	2015-07-18	2015-09-07
2016	2016-05-07	2016-08-19
2017	2017-06-04	2017-09-26
2018	2018-05-26	2018-09-18
2019	2019-06-01	2019-08-04
2020	2020-05-26	2020-08-28
2021	2021-06-05	2021-08-21
2022	2022-05-13	2022-09-02
2023	2023-05-31	2023-10-02
2024	2024-05-19	2024-09-21
2025	2025-06-03	2025-08-16

Every Fixed Threshold

Fixed thresholds at Rosholt
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	69	43	1949	17
35 C (95 F): Days	23	7	1988	3
90 F (32.2 C): Days	60	27	1948	4
100 F (37.8 C): Days	4	2	1995	1
0 C (32 F): Ice days (max	70	102	1955	38
0 C (32 F): Frost days (min	70	196	2002	51
-10 C (14 F): Days with min	70	98	2014	39
-20 C (-4 F): Days with min	70	48	2008	13
-30 C (-22 F): Days with min	37	10	1963	3
-40 C (-40 F): Days with min	1	1	1982	1
20 C (68 F): Tropical nights (min	55	15	1955	6
25 C (77 F): Days with min	2	2	1988	2
10 mm (0.39 in): Days with 10 mm or more rain	77	41	2019	27
25 mm (0.98 in): Days with 25 mm or more rain	77	15	2024	9
50 mm (1.97 in): Days with 50 mm or more rain	41	3	2006	4
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1995	1
10 cm (3.9 in): Days with 10 cm or more snowfall	71	12	2019	4
25 cm (9.8 in): Days with 25 cm or more snowfall	10	2	2018	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1948.

Download the Data

Data for Rosholt 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).

Rosholt Threshold Days by Year (USC00477349)

Key Facts for Rosholt Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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