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

Sioux City 8 N Threshold Days by Year (USC00137703)

4 fixed thresholds counted per year at Sioux City 8 N (USC00137703): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sioux City 8 N Thresholds

  • Sioux City 8 N: days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 1962 with 30.
  • Sioux City 8 N: days with 25 mm (0.98 in) or more of precipitation in 27 years, most in 1967 with 9.
  • Sioux City 8 N: days with 10 cm (3.9 in) or more of snowfall in 21 years, most in 1959 with 5.
  • Sioux City 8 N: days with 50 mm (1.97 in) or more of precipitation in 16 years, most in 1950 with 2.
  • 4 fixed thresholds have at least one qualifying day at Sioux City 8 N.
27 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Sioux City 8 N Days per year at Sioux City 8 N with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1962. 01020301950: 191954: 221955: 131956: 141957: 261958: 131959: 241960: 181961: 191962: 301963: 211964: 161965: 281966: 201967: 201968: 191969: 211970: 291971: 201972: 241973: 181974: 101975: 211976: 121977: 201978: 171979: 26195019561959196219651968197119741977
Days per year at Sioux City 8 N with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1962.
Days with 10 mm (0.39 in) or more of precipitation per year at Sioux City 8 N
YearDaysDecade average
19501918.7
19542218.7
19551318.7
19561418.7
19572618.7
19581318.7
19592418.7
19601821.2
19611921.2
19623021.2
19632121.2
19641621.2
19652821.2
19662021.2
19672021.2
19681921.2
19692121.2
19702919.7
19712019.7
19722419.7
19731819.7
19741019.7
19752119.7
19761219.7
19772019.7
19781719.7
19792619.7
First to last qualifying date each year at Sioux City 8 N For each year, a bar from the first to the last day at Sioux City 8 N meeting 10 mm (0.39 in). 1950: 24 January 1950 to 4 November 19501954: 20 February 1954 to 26 October 19541955: 24 April 1955 to 3 December 19551956: 3 April 1956 to 30 October 19561957: 18 March 1957 to 16 November 19571958: 26 February 1958 to 17 November 19581959: 10 February 1959 to 28 December 19591960: 1 January 1960 to 28 November 19601961: 18 February 1961 to 11 October 19611962: 15 February 1962 to 7 October 19621963: 19 March 1963 to 21 October 19631964: 19 March 1964 to 20 September 19641965: 9 February 1965 to 19 October 19651966: 9 February 1966 to 28 December 19661967: 2 April 1967 to 29 October 19671968: 3 April 1968 to 22 December 19681969: 27 February 1969 to 27 December 19691970: 3 March 1970 to 10 December 19701971: 18 February 1971 to 30 December 19711972: 21 April 1972 to 30 December 19721973: 11 March 1973 to 10 October 19731974: 11 May 1974 to 31 October 19741975: 11 January 1975 to 20 November 19751976: 15 February 1976 to 19 October 19761977: 3 March 1977 to 17 December 19771978: 17 April 1978 to 17 November 19781979: 3 March 1979 to 22 November 19791950195719611965196919731977JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Sioux City 8 N meeting 10 mm (0.39 in).
First to last qualifying date each year at Sioux City 8 N
YearFirst dateLast date
19501950-01-241950-11-04
19541954-02-201954-10-26
19551955-04-241955-12-03
19561956-04-031956-10-30
19571957-03-181957-11-16
19581958-02-261958-11-17
19591959-02-101959-12-28
19601960-01-011960-11-28
19611961-02-181961-10-11
19621962-02-151962-10-07
19631963-03-191963-10-21
19641964-03-191964-09-20
19651965-02-091965-10-19
19661966-02-091966-12-28
19671967-04-021967-10-29
19681968-04-031968-12-22
19691969-02-271969-12-27
19701970-03-031970-12-10
19711971-02-181971-12-30
19721972-04-211972-12-30
19731973-03-111973-10-10
19741974-05-111974-10-31
19751975-01-111975-11-20
19761976-02-151976-10-19
19771977-03-031977-12-17
19781978-04-171978-11-17
19791979-03-031979-11-22

Every Fixed Threshold

Fixed thresholds at Sioux City 8 N
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2730196226
25 mm (0.98 in): Days with 25 mm or more rain27919676
50 mm (1.97 in): Days with 50 mm or more rain16219501
10 cm (3.9 in): Days with 10 cm or more snowfall21519593

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

Download the Data

  • Data for Sioux City 8 N 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).