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

Louisville Threshold Days by Year (USC00115216)

3 fixed thresholds counted per year at Louisville (USC00115216): 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 2 years, most in 1949 with 35.
  • Louisville: days with 25 mm (0.98 in) or more of precipitation in 2 years, most in 1949 with 12.
  • Louisville: days with 50 mm (1.97 in) or more of precipitation in 2 years, most in 1949 with 3.
  • 3 fixed thresholds have at least one qualifying day at Louisville.
2 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 35 in 1949. 0102030401949: 351950: 3519491950
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 35 in 1949.
Days with 10 mm (0.39 in) or more of precipitation per year at Louisville
YearDaysDecade average
19493535
19503535
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). 1949: 3 January 1949 to 26 December 19491950: 3 January 1950 to 19 November 195019491950JanFebMarAprMayJunJulAugSepOctNovDec
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
19491949-01-031949-12-26
19501950-01-031950-11-19

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 rain235194935
25 mm (0.98 in): Days with 25 mm or more rain212194911
50 mm (1.97 in): Days with 50 mm or more rain2319492

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

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).