Rheinfelden Threshold Days by Year (GME00127786)

13 fixed thresholds counted per year at Rheinfelden (GME00127786): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rheinfelden Thresholds

Rheinfelden: days with a maximum temperature at or above 30 C (86 F) in 71 years, most in 2003 with 59.
Rheinfelden: nights with a minimum temperature at or below 0 C (32 F) in 71 years, most in 1969 with 108.
Rheinfelden: days with 10 mm (0.39 in) or more of precipitation in 71 years, most in 1981 with 53.
Rheinfelden: days with a maximum temperature at or below 0 C (32 F) in 68 years, most in 1963 with 45.
13 fixed thresholds have at least one qualifying day at Rheinfelden.

Days at or above 30 C (86 F)

71 years with a qualifying day

Days per year at Rheinfelden with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 59 in 2003.

Days at or above 30 C (86 F) per year at Rheinfelden
Year	Days	Decade average
1954	8	9
1955	3	9
1956	5	9
1957	13	9
1958	10	9
1959	15	9
1960	6	11.9
1961	20	11.9
1962	17	11.9
1963	8	11.9
1964	20	11.9
1965	6	11.9
1966	8	11.9
1967	17	11.9
1968	6	11.9
1969	11	11.9
1970	8	9.6
1971	15	9.6
1972	6	9.6
1973	15	9.6
1974	7	9.6
1975	9	9.6
1976	25	9.6
1977	2	9.6
1978	3	9.6
1979	6	9.6
1980	4	12.5
1981	8	12.5
1982	13	12.5
1983	26	12.5
1984	10	12.5
1985	13	12.5
1986	17	12.5
1987	12	12.5
1988	12	12.5
1989	10	12.5
1990	14	17.1
1991	16	17.1
1992	21	17.1
1993	14	17.1
1994	31	17.1
1995	18	17.1
1996	8	17.1
1997	14	17.1
1998	21	17.1
1999	14	17.1
2000	18	22.9
2001	22	22.9
2002	18	22.9
2003	59	22.9
2004	19	22.9
2005	22	22.9
2006	28	22.9
2007	10	22.9
2008	14	22.9
2009	19	22.9
2010	22	24.5
2011	22	24.5
2012	21	24.5
2013	26	24.5
2014	10	24.5
2017	29	24.5
2018	37	24.5
2019	29	24.5
2020	26	31.6
2021	9	31.6
2022	41	31.6
2023	32	31.6
2024	27	31.6
2025	23	31.6
2026	63	31.6

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

First to last qualifying date each year at Rheinfelden
Year	First date	Last date
1954	1954-06-19	1954-08-06
1955	1955-06-24	1955-07-18
1956	1956-05-28	1956-08-10
1957	1957-06-29	1957-08-08
1958	1958-05-08	1958-09-06
1959	1959-06-19	1959-07-27
1960	1960-06-19	1960-08-26
1961	1961-06-24	1961-09-19
1962	1962-06-22	1962-09-15
1963	1963-06-22	1963-08-03
1964	1964-06-11	1964-08-28
1965	1965-06-25	1965-08-07
1966	1966-06-13	1966-09-12
1967	1967-05-28	1967-08-16
1968	1968-06-28	1968-07-08
1969	1969-05-13	1969-08-06
1970	1970-06-22	1970-08-06
1971	1971-07-08	1971-08-19
1972	1972-06-27	1972-08-13
1973	1973-06-27	1973-09-04
1974	1974-07-30	1974-08-17
1975	1975-07-08	1975-08-08
1976	1976-06-09	1976-07-18
1977	1977-06-13	1977-07-03
1978	1978-07-28	1978-07-30
1979	1979-05-30	1979-08-14
1980	1980-07-25	1980-08-07
1981	1981-06-15	1981-08-15
1982	1982-06-04	1982-09-05
1983	1983-06-04	1983-08-28
1984	1984-06-19	1984-09-02
1985	1985-05-26	1985-08-24
1986	1986-06-21	1986-08-15
1987	1987-06-29	1987-09-18
1988	1988-07-20	1988-08-18
1989	1989-06-21	1989-08-21
1990	1990-06-26	1990-08-24
1991	1991-07-02	1991-08-22
1992	1992-05-15	1992-08-28
1993	1993-05-25	1993-08-22
1994	1994-06-18	1994-08-23
1995	1995-06-20	1995-08-05
1996	1996-06-06	1996-08-10
1997	1997-06-07	1997-08-25
1998	1998-05-11	1998-08-17
1999	1999-05-27	1999-09-13
2000	2000-06-02	2000-08-25
2001	2001-06-25	2001-08-27
2002	2002-05-17	2002-08-19
2003	2003-06-01	2003-09-21
2004	2004-06-08	2004-08-18
2005	2005-05-01	2005-08-31
2006	2006-06-13	2006-07-30
2007	2007-05-21	2007-08-26
2008	2008-06-21	2008-08-07
2009	2009-05-24	2009-09-01
2010	2010-06-10	2010-08-26
2011	2011-05-26	2011-09-11
2012	2012-04-28	2012-09-10
2013	2013-06-13	2013-09-06
2014	2014-06-07	2014-07-19
2017	2017-05-27	2017-08-30
2018	2018-06-20	2018-09-12
2019	2019-06-02	2019-09-16
2020	2020-06-25	2020-09-15
2021	2021-06-15	2021-08-14
2022	2022-05-19	2022-08-29
2023	2023-06-17	2023-10-13
2024	2024-06-27	2024-09-07
2025	2025-05-31	2025-08-19
2026	2026-05-24	2026-08-27

Every Fixed Threshold

Fixed thresholds at Rheinfelden
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	71	59	2003	63
35 C (95 F): Days	31	17	2003	24
40 C (104 F): Days	1	0	n/a	1
90 F (32.2 C): Days	63	28	2003	42
100 F (37.8 C): Days	7	6	2003	8
0 C (32 F): Ice days (max	68	45	1963	3
0 C (32 F): Frost days (min	71	108	1969	37
-10 C (14 F): Days with min	39	22	1956	1
-20 C (-4 F): Days with min	3	1	1956	1
20 C (68 F): Tropical nights (min	21	7	2003	5
10 mm (0.39 in): Days with 10 mm or more rain	71	53	1981	14
25 mm (0.98 in): Days with 25 mm or more rain	67	11	1982	9
50 mm (1.97 in): Days with 50 mm or more rain	15	2	1981	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.

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Data for Rheinfelden 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 2026-10-14. Last revised 14 October 2026 (2026-10-14).

Rheinfelden Threshold Days by Year (GME00127786)

Key Facts for Rheinfelden Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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