Hjalmsater Threshold Days by Year

3 fixed thresholds counted per year at Hjalmsater (SWE00138564): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hjalmsater Thresholds

Hjalmsater: days with 10 mm (0.39 in) or more of precipitation in 47 years, most in 1953 with 23.
Hjalmsater: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1967 with 6.
Hjalmsater: days with 50 mm (1.97 in) or more of precipitation in 2 years, most in 1958 with 1.
3 fixed thresholds have at least one qualifying day at Hjalmsater.

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

47 years with a qualifying day

Days per year at Hjalmsater with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1953.

Days with 10 mm (0.39 in) or more of precipitation per year at Hjalmsater
Year	Days	Decade average
1945	16	14.4
1946	17	14.4
1947	8	14.4
1948	13	14.4
1949	18	14.4
1950	18	15.9
1951	17	15.9
1952	16	15.9
1953	23	15.9
1954	18	15.9
1955	8	15.9
1956	10	15.9
1957	19	15.9
1958	15	15.9
1959	15	15.9
1960	17	13.2
1961	15	13.2
1962	11	13.2
1964	15	13.2
1965	16	13.2
1966	10	13.2
1967	13	13.2
1968	11	13.2
1969	11	13.2
1970	14	11.6
1971	15	11.6
1972	10	11.6
1973	7	11.6
1974	12	11.6
1975	10	11.6
1976	11	11.6
1977	16	11.6
1978	7	11.6
1979	14	11.6
1980	14	13.7
1981	18	13.7
1982	15	13.7
1983	9	13.7
1984	12	13.7
1985	13	13.7
1986	8	13.7
1987	15	13.7
1988	19	13.7
1989	14	13.7
1990	15	14.7
1991	13	14.7
1992	16	14.7

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

First to last qualifying date each year at Hjalmsater
Year	First date	Last date
1945	1945-01-18	1945-11-08
1946	1946-05-02	1946-11-13
1947	1947-06-15	1947-11-21
1948	1948-01-05	1948-10-17
1949	1949-04-07	1949-12-07
1950	1950-02-12	1950-12-24
1951	1951-01-03	1951-12-08
1952	1952-04-22	1952-11-25
1953	1953-01-31	1953-12-16
1954	1954-02-26	1954-12-12
1955	1955-05-18	1955-12-28
1956	1956-05-02	1956-11-26
1957	1957-02-06	1957-12-29
1958	1958-02-11	1958-12-31
1959	1959-01-19	1959-10-31
1960	1960-01-05	1960-12-19
1961	1961-04-03	1961-12-31
1962	1962-02-11	1962-12-26
1964	1964-05-04	1964-12-13
1965	1965-04-18	1965-11-03
1966	1966-01-29	1966-12-29
1967	1967-01-30	1967-10-28
1968	1968-05-06	1968-11-03
1969	1969-01-22	1969-11-23
1970	1970-03-05	1970-11-28
1971	1971-06-22	1971-12-27
1972	1972-04-02	1972-12-05
1973	1973-07-08	1973-11-18
1974	1974-03-18	1974-12-18
1975	1975-01-17	1975-12-16
1976	1976-07-11	1976-12-27
1977	1977-01-02	1977-12-24
1978	1978-03-16	1978-11-04
1979	1979-03-26	1979-11-26
1980	1980-02-10	1980-12-15
1981	1981-03-07	1981-11-24
1982	1982-01-26	1982-12-11
1983	1983-01-17	1983-09-15
1984	1984-01-03	1984-10-25
1985	1985-03-10	1985-12-25
1986	1986-01-03	1986-12-05
1987	1987-05-12	1987-11-16
1988	1988-01-11	1988-12-26
1989	1989-02-04	1989-12-21
1990	1990-01-26	1990-12-29
1991	1991-04-05	1991-09-29
1992	1992-01-08	1992-12-01

Every Fixed Threshold

Fixed thresholds at Hjalmsater
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	47	23	1953	16
25 mm (0.98 in): Days with 25 mm or more rain	31	6	1967	2
50 mm (1.97 in): Days with 50 mm or more rain	2	1	1958	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.

Download the Data

Data for Hjalmsater 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 2026-10-13 (13 October 2026). Threshold counts are computed by this site.

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

Hjalmsater Threshold Days by Year

Key Facts for Hjalmsater Thresholds

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

Every Fixed Threshold

Download the Data

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