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Built 2026-10-19 (19 October 2026)

Strombacka Threshold Days by Year (SWE00139712)

3 fixed thresholds counted per year at Strombacka (SWE00139712): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Strombacka Thresholds

  • Strombacka: days with 10 mm (0.39 in) or more of precipitation in 35 years, most in 1945 with 26.
  • Strombacka: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 1965 with 7.
  • Strombacka: days with 50 mm (1.97 in) or more of precipitation in 2 years, most in 1949 with 1.
  • 3 fixed thresholds have at least one qualifying day at Strombacka.
35 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Strombacka Days per year at Strombacka with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1945. 01020301945: 261946: 191947: 111948: 131949: 151950: 161951: 161952: 141953: 181954: 211955: 151956: 151957: 161958: 141959: 171960: 171961: 211962: 141963: 121964: 131965: 191966: 261967: 171968: 201969: 191970: 211971: 91972: 101973: 151974: 191975: 111976: 121977: 171978: 161979: 19194519491953195719611965196919731977
Days per year at Strombacka with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1945.
Days with 10 mm (0.39 in) or more of precipitation per year at Strombacka
YearDaysDecade average
19452616.8
19461916.8
19471116.8
19481316.8
19491516.8
19501616.2
19511616.2
19521416.2
19531816.2
19542116.2
19551516.2
19561516.2
19571616.2
19581416.2
19591716.2
19601717.8
19612117.8
19621417.8
19631217.8
19641317.8
19651917.8
19662617.8
19671717.8
19682017.8
19691917.8
19702114.9
1971914.9
19721014.9
19731514.9
19741914.9
19751114.9
19761214.9
19771714.9
19781614.9
19791914.9
First to last qualifying date each year at Strombacka For each year, a bar from the first to the last day at Strombacka meeting 10 mm (0.39 in). 1945: 4 January 1945 to 18 December 19451946: 10 January 1946 to 12 November 19461947: 17 January 1947 to 4 December 19471948: 10 March 1948 to 22 October 19481949: 19 January 1949 to 25 December 19491950: 2 January 1950 to 23 November 19501951: 15 June 1951 to 9 December 19511952: 1 February 1952 to 9 December 19521953: 31 January 1953 to 14 December 19531954: 20 January 1954 to 12 December 19541955: 2 May 1955 to 17 December 19551956: 18 January 1956 to 24 November 19561957: 14 February 1957 to 26 November 19571958: 12 February 1958 to 17 December 19581959: 2 January 1959 to 27 December 19591960: 1 January 1960 to 12 December 19601961: 6 February 1961 to 30 December 19611962: 22 January 1962 to 12 December 19621963: 5 January 1963 to 18 November 19631964: 23 June 1964 to 20 December 19641965: 21 January 1965 to 26 December 19651966: 29 January 1966 to 28 December 19661967: 3 January 1967 to 27 December 19671968: 25 January 1968 to 28 December 19681969: 30 March 1969 to 10 November 19691970: 5 March 1970 to 23 November 19701971: 31 January 1971 to 7 November 19711972: 28 March 1972 to 1 November 19721973: 17 April 1973 to 21 December 19731974: 11 February 1974 to 17 December 19741975: 13 May 1975 to 2 December 19751976: 5 January 1976 to 4 December 19761977: 1 January 1977 to 24 November 19771978: 30 January 1978 to 24 September 19781979: 2 April 1979 to 29 December 19791945195019551960196519701975JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Strombacka meeting 10 mm (0.39 in).
First to last qualifying date each year at Strombacka
YearFirst dateLast date
19451945-01-041945-12-18
19461946-01-101946-11-12
19471947-01-171947-12-04
19481948-03-101948-10-22
19491949-01-191949-12-25
19501950-01-021950-11-23
19511951-06-151951-12-09
19521952-02-011952-12-09
19531953-01-311953-12-14
19541954-01-201954-12-12
19551955-05-021955-12-17
19561956-01-181956-11-24
19571957-02-141957-11-26
19581958-02-121958-12-17
19591959-01-021959-12-27
19601960-01-011960-12-12
19611961-02-061961-12-30
19621962-01-221962-12-12
19631963-01-051963-11-18
19641964-06-231964-12-20
19651965-01-211965-12-26
19661966-01-291966-12-28
19671967-01-031967-12-27
19681968-01-251968-12-28
19691969-03-301969-11-10
19701970-03-051970-11-23
19711971-01-311971-11-07
19721972-03-281972-11-01
19731973-04-171973-12-21
19741974-02-111974-12-17
19751975-05-131975-12-02
19761976-01-051976-12-04
19771977-01-011977-11-24
19781978-01-301978-09-24
19791979-04-021979-12-29

Every Fixed Threshold

Fixed thresholds at Strombacka
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3526194519
25 mm (0.98 in): Days with 25 mm or more rain28719651
50 mm (1.97 in): Days with 50 mm or more rain2119491

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 Strombacka 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).