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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Knivsta Threshold Days by Year (SWE00139094)

2 fixed thresholds counted per year at Knivsta (SWE00139094): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Knivsta Thresholds

  • Knivsta: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1980 with 26.
  • Knivsta: days with 25 mm (0.98 in) or more of precipitation in 21 years, most in 1960 with 5.
  • 2 fixed thresholds have at least one qualifying day at Knivsta.
28 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Knivsta Days per year at Knivsta with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1980. 01020301953: 71954: 221955: 111956: 161957: 181958: 231959: 101960: 231961: 161962: 91963: 101964: 91965: 151966: 131967: 101968: 141969: 71970: 121971: 71972: 51973: 101974: 141975: 91976: 91977: 171978: 101979: 201980: 261953195619591962196519681971197419771980
Days per year at Knivsta with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1980.
Days with 10 mm (0.39 in) or more of precipitation per year at Knivsta
YearDaysDecade average
1953715.3
19542215.3
19551115.3
19561615.3
19571815.3
19582315.3
19591015.3
19602312.6
19611612.6
1962912.6
19631012.6
1964912.6
19651512.6
19661312.6
19671012.6
19681412.6
1969712.6
19701211.3
1971711.3
1972511.3
19731011.3
19741411.3
1975911.3
1976911.3
19771711.3
19781011.3
19792011.3
19802626
First to last qualifying date each year at Knivsta For each year, a bar from the first to the last day at Knivsta meeting 10 mm (0.39 in). 1953: 31 January 1953 to 15 October 19531954: 3 January 1954 to 6 November 19541955: 10 January 1955 to 17 December 19551956: 13 January 1956 to 2 December 19561957: 5 January 1957 to 26 November 19571958: 4 January 1958 to 26 December 19581959: 10 January 1959 to 31 October 19591960: 5 January 1960 to 12 December 19601961: 4 January 1961 to 31 December 19611962: 5 April 1962 to 26 October 19621963: 5 January 1963 to 19 December 19631964: 3 June 1964 to 13 December 19641965: 11 January 1965 to 18 December 19651966: 29 January 1966 to 18 December 19661967: 1 February 1967 to 3 December 19671968: 25 January 1968 to 2 November 19681969: 13 January 1969 to 23 November 19691970: 1 January 1970 to 24 November 19701971: 7 April 1971 to 7 November 19711972: 20 February 1972 to 1 November 19721973: 15 February 1973 to 22 November 19731974: 15 January 1974 to 12 December 19741975: 15 March 1975 to 12 September 19751976: 26 April 1976 to 3 December 19761977: 29 January 1977 to 12 November 19771978: 5 March 1978 to 3 September 19781979: 12 January 1979 to 28 December 19791980: 24 April 1980 to 13 December 19801953195719611965196919731977JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Knivsta meeting 10 mm (0.39 in).
First to last qualifying date each year at Knivsta
YearFirst dateLast date
19531953-01-311953-10-15
19541954-01-031954-11-06
19551955-01-101955-12-17
19561956-01-131956-12-02
19571957-01-051957-11-26
19581958-01-041958-12-26
19591959-01-101959-10-31
19601960-01-051960-12-12
19611961-01-041961-12-31
19621962-04-051962-10-26
19631963-01-051963-12-19
19641964-06-031964-12-13
19651965-01-111965-12-18
19661966-01-291966-12-18
19671967-02-011967-12-03
19681968-01-251968-11-02
19691969-01-131969-11-23
19701970-01-011970-11-24
19711971-04-071971-11-07
19721972-02-201972-11-01
19731973-02-151973-11-22
19741974-01-151974-12-12
19751975-03-151975-09-12
19761976-04-261976-12-03
19771977-01-291977-11-12
19781978-03-051978-09-03
19791979-01-121979-12-28
19801980-04-241980-12-13

Every Fixed Threshold

Fixed thresholds at Knivsta
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2826198026
25 mm (0.98 in): Days with 25 mm or more rain21519602

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1953.

Download the Data

  • Data for Knivsta 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).