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Built 2026-10-19 (19 October 2026)

Fjallnas Threshold Days by Year (SWE00139852)

9 fixed thresholds counted per year at Fjallnas (SWE00139852): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fjallnas Thresholds

  • Fjallnas: days with a maximum temperature at or below 0 C (32 F) in 42 years, most in 1966 with 154.
  • Fjallnas: nights with a minimum temperature at or below 0 C (32 F) in 42 years, most in 1951 with 256.
  • Fjallnas: nights with a minimum temperature at or below -10 C (14 F) in 42 years, most in 1981 with 129.
  • Fjallnas: nights with a minimum temperature at or below -20 C (-4 F) in 42 years, most in 1981 with 62.
  • 9 fixed thresholds have at least one qualifying day at Fjallnas.
42 years with a qualifying day
Nights at or below 0 C (32 F) per year at Fjallnas Days per year at Fjallnas with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 256 in 1951. 01002003001951: 2561953: 1891954: 2441955: 2551956: 2311957: 2391958: 2321959: 2261960: 2351961: 1921962: 2361963: 2101964: 2341965: 2341966: 2351967: 2341968: 2431969: 2341970: 2331971: 2111972: 2441973: 2481974: 2391975: 2361976: 2521977: 2441978: 2401979: 2411980: 2361981: 2331982: 2541983: 2181986: 2261987: 2161988: 2191989: 2291990: 2231991: 2321992: 2141993: 2351994: 2511995: 232195119571962196719721977198219891994
Days per year at Fjallnas with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 256 in 1951.
Nights at or below 0 C (32 F) per year at Fjallnas
YearDaysDecade average
1951256234
1953189234
1954244234
1955255234
1956231234
1957239234
1958232234
1959226234
1960235228.7
1961192228.7
1962236228.7
1963210228.7
1964234228.7
1965234228.7
1966235228.7
1967234228.7
1968243228.7
1969234228.7
1970233238.8
1971211238.8
1972244238.8
1973248238.8
1974239238.8
1975236238.8
1976252238.8
1977244238.8
1978240238.8
1979241238.8
1980236228.9
1981233228.9
1982254228.9
1983218228.9
1986226228.9
1987216228.9
1988219228.9
1989229228.9
1990223231.2
1991232231.2
1992214231.2
1993235231.2
1994251231.2
1995232231.2
First to last qualifying date each year at Fjallnas For each year, a bar from the first to the last day at Fjallnas meeting 0 C (32 F). 1951: 1 January 1951 to 31 December 19511953: 1 February 1953 to 31 December 19531954: 1 January 1954 to 31 December 19541955: 1 January 1955 to 31 December 19551956: 1 January 1956 to 31 December 19561957: 1 January 1957 to 31 December 19571958: 1 January 1958 to 31 December 19581959: 1 January 1959 to 31 December 19591960: 1 January 1960 to 31 December 19601961: 1 January 1961 to 31 December 19611962: 1 January 1962 to 31 December 19621963: 1 January 1963 to 31 December 19631964: 1 January 1964 to 31 December 19641965: 1 January 1965 to 31 December 19651966: 1 January 1966 to 31 December 19661967: 1 January 1967 to 31 December 19671968: 1 January 1968 to 31 December 19681969: 1 January 1969 to 31 December 19691970: 1 January 1970 to 31 December 19701971: 1 January 1971 to 31 December 19711972: 1 January 1972 to 30 December 19721973: 1 January 1973 to 31 December 19731974: 1 January 1974 to 31 December 19741975: 1 January 1975 to 31 December 19751976: 1 January 1976 to 31 December 19761977: 1 January 1977 to 31 December 19771978: 1 January 1978 to 31 December 19781979: 1 January 1979 to 31 December 19791980: 1 January 1980 to 31 December 19801981: 1 January 1981 to 31 December 19811982: 1 January 1982 to 31 December 19821983: 1 January 1983 to 31 December 19831986: 1 January 1986 to 31 December 19861987: 1 January 1987 to 31 December 19871988: 1 January 1988 to 31 December 19881989: 1 January 1989 to 31 December 19891990: 1 January 1990 to 31 December 19901991: 1 January 1991 to 31 December 19911992: 1 January 1992 to 31 December 19921993: 10 January 1993 to 31 December 19931994: 1 January 1994 to 31 December 19941995: 1 January 1995 to 31 December 19951951195819641970197619821990JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Fjallnas meeting 0 C (32 F).
First to last qualifying date each year at Fjallnas
YearFirst dateLast date
19511951-01-011951-12-31
19531953-02-011953-12-31
19541954-01-011954-12-31
19551955-01-011955-12-31
19561956-01-011956-12-31
19571957-01-011957-12-31
19581958-01-011958-12-31
19591959-01-011959-12-31
19601960-01-011960-12-31
19611961-01-011961-12-31
19621962-01-011962-12-31
19631963-01-011963-12-31
19641964-01-011964-12-31
19651965-01-011965-12-31
19661966-01-011966-12-31
19671967-01-011967-12-31
19681968-01-011968-12-31
19691969-01-011969-12-31
19701970-01-011970-12-31
19711971-01-011971-12-31
19721972-01-011972-12-30
19731973-01-011973-12-31
19741974-01-011974-12-31
19751975-01-011975-12-31
19761976-01-011976-12-31
19771977-01-011977-12-31
19781978-01-011978-12-31
19791979-01-011979-12-31
19801980-01-011980-12-31
19811981-01-011981-12-31
19821982-01-011982-12-31
19831983-01-011983-12-31
19861986-01-011986-12-31
19871987-01-011987-12-31
19881988-01-011988-12-31
19891989-01-011989-12-31
19901990-01-011990-12-31
19911991-01-011991-12-31
19921992-01-011992-12-31
19931993-01-101993-12-31
19941994-01-011994-12-31
19951995-01-011995-12-31

Every Fixed Threshold

Fixed thresholds at Fjallnas
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Ice days (max421541966129
0 C (32 F): Frost days (min422561951232
-10 C (14 F): Days with min42129198188
-20 C (-4 F): Days with min4262198129
-30 C (-22 F): Days with min393019582
-40 C (-40 F): Days with min3319873
10 mm (0.39 in): Days with 10 mm or more rain352919879
25 mm (0.98 in): Days with 25 mm or more rain30519691
50 mm (1.97 in): Days with 50 mm or more rain2119731

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1951.

Download the Data

  • Data for Fjallnas 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 . Last revised (2025-12-31).