Riksgransen Threshold Days by Year (SWE00140954)

10 fixed thresholds counted per year at Riksgransen (SWE00140954): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Riksgransen Thresholds

Riksgransen: days with 10 mm (0.39 in) or more of precipitation in 64 years, most in 1920 with 47.
Riksgransen: days with a maximum temperature at or below 0 C (32 F) in 63 years, most in 1915 with 195.
Riksgransen: nights with a minimum temperature at or below 0 C (32 F) in 63 years, most in 1915 with 272.
Riksgransen: nights with a minimum temperature at or below -10 C (14 F) in 63 years, most in 1919 with 150.
10 fixed thresholds have at least one qualifying day at Riksgransen.

Nights at or below 0 C (32 F)

63 years with a qualifying day

Days per year at Riksgransen with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 272 in 1915.

Nights at or below 0 C (32 F) per year at Riksgransen
Year	Days	Decade average
1905	253	251
1906	255	251
1907	260	251
1908	244	251
1909	243	251
1910	270	249.5
1911	239	249.5
1912	243	249.5
1913	238	249.5
1914	253	249.5
1915	272	249.5
1916	257	249.5
1917	255	249.5
1918	233	249.5
1919	235	249.5
1920	225	237.5
1921	236	237.5
1922	228	237.5
1927	254	237.5
1928	244	237.5
1929	238	237.5
1930	230	236.1
1931	240	236.1
1932	253	236.1
1933	236	236.1
1934	229	236.1
1935	253	236.1
1936	236	236.1
1937	215	236.1
1938	229	236.1
1939	240	236.1
1940	212	235.1
1941	244	235.1
1942	237	235.1
1943	239	235.1
1944	238	235.1
1945	248	235.1
1946	224	235.1
1947	241	235.1
1948	237	235.1
1949	231	235.1
1950	227	237.2
1951	243	237.2
1952	241	237.2
1953	223	237.2
1954	242	237.2
1955	246	237.2
1956	239	237.2
1957	249	237.2
1958	243	237.2
1959	219	237.2
1960	229	229.4
1961	211	229.4
1962	224	229.4
1963	206	229.4
1964	222	229.4
1965	238	229.4
1966	252	229.4
1967	228	229.4
1968	249	229.4
1969	235	229.4
1970	226	234
1971	242	234

For each year, a bar from the first to the last day at Riksgransen meeting 0 C (32 F).

First to last qualifying date each year at Riksgransen
Year	First date	Last date
1905	1905-01-01	1905-12-31
1906	1906-01-01	1906-12-31
1907	1907-01-01	1907-12-31
1908	1908-01-01	1908-12-31
1909	1909-01-01	1909-12-31
1910	1910-01-01	1910-12-31
1911	1911-01-01	1911-12-31
1912	1912-01-01	1912-12-31
1913	1913-01-01	1913-12-31
1914	1914-01-01	1914-12-31
1915	1915-01-01	1915-12-31
1916	1916-01-01	1916-12-31
1917	1917-01-01	1917-12-31
1918	1918-01-01	1918-12-31
1919	1919-01-01	1919-12-31
1920	1920-01-01	1920-12-31
1921	1921-01-01	1921-12-31
1922	1922-01-01	1922-12-31
1927	1927-01-01	1927-12-31
1928	1928-01-01	1928-12-31
1929	1929-01-01	1929-12-31
1930	1930-01-01	1930-12-31
1931	1931-01-01	1931-12-31
1932	1932-01-01	1932-12-31
1933	1933-01-01	1933-12-31
1934	1934-01-01	1934-12-31
1935	1935-01-01	1935-12-31
1936	1936-01-01	1936-12-31
1937	1937-01-01	1937-12-31
1938	1938-01-01	1938-12-31
1939	1939-01-01	1939-12-31
1940	1940-01-01	1940-12-31
1941	1941-01-01	1941-12-31
1942	1942-01-01	1942-12-31
1943	1943-01-01	1943-12-31
1944	1944-01-01	1944-12-31
1945	1945-01-01	1945-12-31
1946	1946-01-01	1946-12-31
1947	1947-01-01	1947-12-31
1948	1948-01-01	1948-12-31
1949	1949-01-01	1949-12-31
1950	1950-01-01	1950-12-31
1951	1951-01-01	1951-12-31
1952	1952-01-01	1952-12-31
1953	1953-01-01	1953-12-31
1954	1954-01-01	1954-12-31
1955	1955-01-01	1955-12-31
1956	1956-01-01	1956-12-31
1957	1957-01-01	1957-12-31
1958	1958-01-01	1958-12-31
1959	1959-01-01	1959-12-31
1960	1960-01-01	1960-12-31
1961	1961-01-01	1961-12-31
1962	1962-01-01	1962-12-31
1963	1963-01-01	1963-12-31
1964	1964-01-01	1964-12-31
1965	1965-01-01	1965-12-31
1966	1966-01-01	1966-12-31
1967	1967-01-01	1967-12-31
1968	1968-01-01	1968-12-31
1969	1969-01-01	1969-12-31
1970	1970-01-01	1970-12-31
1971	1971-01-01	1971-12-30

Every Fixed Threshold

Fixed thresholds at Riksgransen
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	1	1	1914	1
0 C (32 F): Ice days (max	63	195	1915	163
0 C (32 F): Frost days (min	63	272	1915	242
-10 C (14 F): Days with min	63	150	1919	119
-20 C (-4 F): Days with min	62	50	1966	27
-30 C (-22 F): Days with min	20	6	1966	1
10 mm (0.39 in): Days with 10 mm or more rain	64	47	1920	40
25 mm (0.98 in): Days with 25 mm or more rain	61	8	1945	4
50 mm (1.97 in): Days with 50 mm or more rain	17	4	1911	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1959	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1914.

Download the Data

Data for Riksgransen 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Riksgransen Threshold Days by Year (SWE00140954)

Key Facts for Riksgransen Thresholds

Nights at or below 0 C (32 F)

Every Fixed Threshold

Download the Data

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