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Built 2026-10-19 (19 October 2026)

Louisville Threshold Days by Year (USC00014884)

6 fixed thresholds counted per year at Louisville (USC00014884): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Louisville Thresholds

  • Louisville: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1975 with 58.
  • Louisville: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1975 with 29.
  • Louisville: days with 50 mm (1.97 in) or more of precipitation in 30 years, most in 1979 with 10.
  • Louisville: days with 100 mm (3.94 in) or more of precipitation in 10 years, most in 1972 with 2.
  • 6 fixed thresholds have at least one qualifying day at Louisville.
31 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Louisville Days per year at Louisville with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 58 in 1975. 02040601958: 451959: 451960: 431961: 451962: 311963: 371964: 541965: 401966: 451967: 421968: 291969: 311970: 371971: 501972: 401973: 411974: 451975: 581976: 491977: 491978: 381979: 451981: 381982: 451983: 521984: 341985: 461986: 341987: 311988: 321989: 4719581962196619701974197819831987
Days per year at Louisville with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 58 in 1975.
Days with 10 mm (0.39 in) or more of precipitation per year at Louisville
YearDaysDecade average
19584545
19594545
19604339.7
19614539.7
19623139.7
19633739.7
19645439.7
19654039.7
19664539.7
19674239.7
19682939.7
19693139.7
19703745.2
19715045.2
19724045.2
19734145.2
19744545.2
19755845.2
19764945.2
19774945.2
19783845.2
19794545.2
19813839.9
19824539.9
19835239.9
19843439.9
19854639.9
19863439.9
19873139.9
19883239.9
19894739.9
First to last qualifying date each year at Louisville For each year, a bar from the first to the last day at Louisville meeting 10 mm (0.39 in). 1958: 7 January 1958 to 28 December 19581959: 1 January 1959 to 18 December 19591960: 3 January 1960 to 30 December 19601961: 1 January 1961 to 15 December 19611962: 6 January 1962 to 25 December 19621963: 12 January 1963 to 31 December 19631964: 1 January 1964 to 27 December 19641965: 24 January 1965 to 19 December 19651966: 3 January 1966 to 31 December 19661967: 1 January 1967 to 28 December 19671968: 2 January 1968 to 31 December 19681969: 20 January 1969 to 26 December 19691970: 6 January 1970 to 31 December 19701971: 5 January 1971 to 21 December 19711972: 2 January 1972 to 31 December 19721973: 1 January 1973 to 27 December 19731974: 1 January 1974 to 20 December 19741975: 8 January 1975 to 31 December 19751976: 8 January 1976 to 26 December 19761977: 3 January 1977 to 30 December 19771978: 7 January 1978 to 24 December 19781979: 2 January 1979 to 30 December 19791981: 7 January 1981 to 31 December 19811982: 2 January 1982 to 28 December 19821983: 1 January 1983 to 30 December 19831984: 10 January 1984 to 5 December 19841985: 3 January 1985 to 28 December 19851986: 10 January 1986 to 23 December 19861987: 1 January 1987 to 23 December 19871988: 1 January 1988 to 16 December 19881989: 15 January 1989 to 31 December 198919581962196619701974197819831987JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Louisville meeting 10 mm (0.39 in).
First to last qualifying date each year at Louisville
YearFirst dateLast date
19581958-01-071958-12-28
19591959-01-011959-12-18
19601960-01-031960-12-30
19611961-01-011961-12-15
19621962-01-061962-12-25
19631963-01-121963-12-31
19641964-01-011964-12-27
19651965-01-241965-12-19
19661966-01-031966-12-31
19671967-01-011967-12-28
19681968-01-021968-12-31
19691969-01-201969-12-26
19701970-01-061970-12-31
19711971-01-051971-12-21
19721972-01-021972-12-31
19731973-01-011973-12-27
19741974-01-011974-12-20
19751975-01-081975-12-31
19761976-01-081976-12-26
19771977-01-031977-12-30
19781978-01-071978-12-24
19791979-01-021979-12-30
19811981-01-071981-12-31
19821982-01-021982-12-28
19831983-01-011983-12-30
19841984-01-101984-12-05
19851985-01-031985-12-28
19861986-01-101986-12-23
19871987-01-011987-12-23
19881988-01-011988-12-16
19891989-01-151989-12-31

Every Fixed Threshold

Fixed thresholds at Louisville
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3158197547
25 mm (0.98 in): Days with 25 mm or more rain3129197521
50 mm (1.97 in): Days with 50 mm or more rain3010197910
100 mm (3.94 in): Days with 100 mm or more rain10219721
10 cm (3.9 in): Days with 10 cm or more snowfall2119731
25 cm (9.8 in): Days with 25 cm or more snowfall1119731

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.

Download the Data

  • Data for Louisville 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).