Letafors Threshold Days by Year (SWE00139466)

3 fixed thresholds counted per year at Letafors (SWE00139466): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Letafors Thresholds

Letafors: days with 10 mm (0.39 in) or more of precipitation in 62 years, most in 2000 with 30.
Letafors: days with 25 mm (0.98 in) or more of precipitation in 47 years, most in 1966 with 4.
Letafors: days with 50 mm (1.97 in) or more of precipitation in 3 years, most in 1996 with 1.
3 fixed thresholds have at least one qualifying day at Letafors.

Days with 10 mm (0.39 in) or more of precipitation

62 years with a qualifying day

Days per year at Letafors with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 2000.

Days with 10 mm (0.39 in) or more of precipitation per year at Letafors
Year	Days	Decade average
1960	20	19.1
1961	29	19.1
1962	20	19.1
1963	17	19.1
1964	18	19.1
1965	13	19.1
1966	22	19.1
1967	23	19.1
1968	15	19.1
1969	14	19.1
1970	14	11.5
1971	9	11.5
1972	13	11.5
1973	12	11.5
1974	13	11.5
1975	9	11.5
1976	7	11.5
1977	16	11.5
1978	7	11.5
1979	15	11.5
1980	14	16.7
1981	15	16.7
1982	10	16.7
1983	10	16.7
1984	26	16.7
1985	19	16.7
1986	18	16.7
1987	29	16.7
1988	13	16.7
1989	13	16.7
1990	20	18
1991	19	18
1992	19	18
1993	21	18
1994	10	18
1995	17	18
1996	16	18
1997	17	18
1998	22	18
1999	19	18
2000	30	19.3
2001	18	19.3
2002	21	19.3
2003	16	19.3
2004	13	19.3
2005	18	19.3
2011	28	21.8
2012	26	21.8
2013	16	21.8
2014	24	21.8
2015	24	21.8
2016	14	21.8
2017	23	21.8
2018	13	21.8
2019	28	21.8
2020	25	20
2021	15	20
2022	15	20
2023	27	20
2024	17	20
2025	26	20
2026	15	20

For each year, a bar from the first to the last day at Letafors meeting 10 mm (0.39 in).

First to last qualifying date each year at Letafors
Year	First date	Last date
1960	1960-01-01	1960-11-05
1961	1961-01-03	1961-12-30
1962	1962-01-31	1962-12-15
1963	1963-04-10	1963-11-17
1964	1964-01-29	1964-12-29
1965	1965-06-08	1965-12-25
1966	1966-01-28	1966-12-30
1967	1967-03-26	1967-12-27
1968	1968-02-07	1968-11-02
1969	1969-01-16	1969-09-28
1970	1970-01-13	1970-11-24
1971	1971-05-17	1971-11-13
1972	1972-04-02	1972-11-21
1973	1973-02-12	1973-11-18
1974	1974-02-11	1974-11-14
1975	1975-01-12	1975-12-02
1976	1976-06-14	1976-12-03
1977	1977-01-01	1977-11-03
1978	1978-01-30	1978-11-15
1979	1979-03-26	1979-12-27
1980	1980-03-29	1980-10-27
1981	1981-02-06	1981-11-27
1982	1982-01-02	1982-11-25
1983	1983-01-13	1983-10-16
1984	1984-03-29	1984-12-23
1985	1985-01-22	1985-11-09
1986	1986-01-02	1986-12-05
1987	1987-02-13	1987-11-12
1988	1988-04-20	1988-10-09
1989	1989-02-25	1989-11-07
1990	1990-01-28	1990-11-14
1991	1991-01-10	1991-12-25
1992	1992-04-02	1992-11-25
1993	1993-02-26	1993-12-19
1994	1994-01-07	1994-10-31
1995	1995-01-20	1995-10-27
1996	1996-05-14	1996-11-18
1997	1997-02-18	1997-12-15
1998	1998-01-13	1998-12-27
1999	1999-02-19	1999-12-24
2000	2000-02-24	2000-12-13
2001	2001-01-06	2001-10-30
2002	2002-01-22	2002-11-08
2003	2003-01-19	2003-11-01
2004	2004-06-07	2004-12-16
2005	2005-01-08	2005-11-10
2011	2011-01-15	2011-10-09
2012	2012-01-03	2012-12-31
2013	2013-04-12	2013-12-05
2014	2014-02-15	2014-11-24
2015	2015-01-10	2015-11-07
2016	2016-01-10	2016-10-31
2017	2017-01-11	2017-12-26
2018	2018-01-16	2018-12-07
2019	2019-03-07	2019-12-08
2020	2020-01-28	2020-12-28
2021	2021-01-20	2021-10-19
2022	2022-02-14	2022-12-26
2023	2023-01-06	2023-11-22
2024	2024-01-21	2024-11-24
2025	2025-01-06	2025-11-23
2026	2026-03-12	2026-08-30

Every Fixed Threshold

Fixed thresholds at Letafors
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	62	30	2000	15
25 mm (0.98 in): Days with 25 mm or more rain	47	4	1966	3
50 mm (1.97 in): Days with 50 mm or more rain	3	1	1996	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1960.

Download the Data

Data for Letafors 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Letafors Threshold Days by Year (SWE00139466)

Key Facts for Letafors Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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