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Built 2026-10-19 (19 October 2026)

Days with 50 mm (1.97 in) or more of precipitation in Denver

Denver has had days with 50 mm (1.97 in) or more of precipitation in 6 years, most in 1998 with 2. Days per year, season span, streaks and every date.

Key Facts for Denver

  • Denver has had days with 50 mm (1.97 in) or more of precipitation in 6 years, 8 days in all.
  • The most in one year was 2 days in 1998.
  • In 2023, the latest year on file, there were 1 such days.
  • The earliest first date in a year was 14 March 2021.
  • The latest last date in a year was 13 October 2007.
  • 4 years with under 90 percent of days observed are left out of these rankings.

Days per Year

6 years, 8 days
Days with 50 mm (1.97 in) or more of precipitation per year in Denver Days per year in Denver with 50 mm (1.97 in) or more of precipitation. The line is the decade average. The most was 2 in 1998. Grey bars are years with under 90 percent of days observed, left out of rankings. 011221997: 11998: 21999: 12007: 22021: 12023: 11997
Days per year in Denver with 50 mm (1.97 in) or more of precipitation. The line is the decade average. The most was 2 in 1998. Grey bars are years with under 90 percent of days observed, left out of rankings.
Days with 50 mm (1.97 in) or more of precipitation per year in Denver
YearDaysDecade average
199711.3
199821.3
199911.3
200722
202111
202311

Season Span

earliest 14 March, latest 13 October
First to last qualifying date each year in Denver For each year, a bar from the first to the last day in Denver meeting 50 mm (1.97 in). Long bars mean a long season. 1997: 30 July 1997 to 30 July 19971998: 10 July 1998 to 25 July 19981999: 30 April 1999 to 30 April 19992007: 24 April 2007 to 13 October 20072021: 14 March 2021 to 14 March 20212023: 11 May 2023 to 11 May 2023199719981999200720212023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day in Denver meeting 50 mm (1.97 in). Long bars mean a long season.
First to last qualifying date each year in Denver
YearFirst dateLast date
19971997-07-301997-07-30
19981998-07-101998-07-25
19991999-04-301999-04-30
20072007-04-242007-10-13
20212021-03-142021-03-14
20232023-05-112023-05-11

Every Year

Days with 50 mm (1.97 in) or more of precipitation per year in Denver
YearDaysFirst dateLast dateLongest streak in yearCoverage
2023111 May 202311 May 20231 daysComplete
2021114 March 202114 March 20211 daysComplete
2007224 April 200713 October 20071 daysComplete
1999130 April 199930 April 19991 daysComplete
1998210 July 199825 July 19981 daysComplete
1997130 July 199730 July 19971 daysComplete
Decade averages for Days with 50 mm (1.97 in) or more of precipitation in Denver
DecadeAverage days per yearYears counted
1990s1.33
2000s2.01
2020s1.02

Compare with your own threshold in the threshold explorer. Fahrenheit thresholds are converted to tenths of a degree Celsius once, rounding half up.

Download the Data

  • Data for Days with 50 mm (1.97 in) or more of precipitation in Denver, 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 from the threaded city record.

Data as of . Last revised (2026-10-17).