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Built 2026-10-19 (19 October 2026)

Days with 10 mm (0.39 in) or more of precipitation in Denver

Denver has had days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1997 with 16. Days per year, season span, streaks and every date.

Key Facts for Denver

  • Denver has had days with 10 mm (0.39 in) or more of precipitation in 30 years, 273 days in all.
  • The most in one year was 16 days in 1997.
  • In 2026, the latest year on file, there were 6 such days.
  • The earliest first date in a year was 9 January 2011.
  • The latest last date in a year was 28 December 2022.
  • The longest run inside a single year was 3 days in 1997.
  • 4 years with under 90 percent of days observed are left out of these rankings.

Days per Year

30 years, 273 days
Days with 10 mm (0.39 in) or more of precipitation per year in Denver Days per year in Denver with 10 mm (0.39 in) or more of precipitation. The line is the decade average. The most was 16 in 1997. Grey bars are years with under 90 percent of days observed, left out of rankings. 051015201996: 61997: 161998: 61999: 142000: 92001: 102002: 32003: 92004: 102005: 102006: 52007: 92008: 82009: 132010: 92011: 132012: 112014: 102015: 122016: 82017: 72018: 32019: 122020: 52021: 72022: 92023: 132024: 92025: 112026: 6199620062017
Days per year in Denver with 10 mm (0.39 in) or more of precipitation. The line is the decade average. The most was 16 in 1997. Grey bars are years with under 90 percent of days observed, left out of rankings.
Days with 10 mm (0.39 in) or more of precipitation per year in Denver
YearDaysDecade average
1996610.5
19971610.5
1998610.5
19991410.5
200098.6
2001108.6
200238.6
200398.6
2004108.6
2005108.6
200658.6
200798.6
200888.6
2009138.6
201099.4
2011139.4
2012119.4
2014109.4
2015129.4
201689.4
201779.4
201839.4
2019129.4
202058.6
202178.6
202298.6
2023138.6
202498.6
2025118.6
202668.6

Season Span

earliest 9 January, latest 28 December
First to last qualifying date each year in Denver For each year, a bar from the first to the last day in Denver meeting 10 mm (0.39 in). Long bars mean a long season. 1996: 25 May 1996 to 18 September 19961997: 24 April 1997 to 25 October 19971998: 2 April 1998 to 25 July 19981999: 22 April 1999 to 28 September 19992000: 15 March 2000 to 5 November 20002001: 28 January 2001 to 8 September 20012002: 3 June 2002 to 10 July 20022003: 17 March 2003 to 30 August 20032004: 12 May 2004 to 21 September 20042005: 10 April 2005 to 10 October 20052006: 31 May 2006 to 20 December 20062007: 24 April 2007 to 13 October 20072008: 1 May 2008 to 5 October 20082009: 26 March 2009 to 6 August 20092010: 23 March 2010 to 1 August 20102011: 9 January 2011 to 26 October 20112012: 3 February 2012 to 24 October 20122014: 11 May 2014 to 29 September 20142015: 16 April 2015 to 16 November 20152016: 23 March 2016 to 16 December 20162017: 24 March 2017 to 23 September 20172018: 2 May 2018 to 23 July 20182019: 11 January 2019 to 26 November 20192020: 19 March 2020 to 24 November 20202021: 13 March 2021 to 30 May 20212022: 16 March 2022 to 28 December 20222023: 17 January 2023 to 14 September 20232024: 3 February 2024 to 8 November 20242025: 29 March 2025 to 23 September 20252026: 6 March 2026 to 25 September 202619962000200420082012201720212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day in Denver meeting 10 mm (0.39 in). Long bars mean a long season.
First to last qualifying date each year in Denver
YearFirst dateLast date
19961996-05-251996-09-18
19971997-04-241997-10-25
19981998-04-021998-07-25
19991999-04-221999-09-28
20002000-03-152000-11-05
20012001-01-282001-09-08
20022002-06-032002-07-10
20032003-03-172003-08-30
20042004-05-122004-09-21
20052005-04-102005-10-10
20062006-05-312006-12-20
20072007-04-242007-10-13
20082008-05-012008-10-05
20092009-03-262009-08-06
20102010-03-232010-08-01
20112011-01-092011-10-26
20122012-02-032012-10-24
20142014-05-112014-09-29
20152015-04-162015-11-16
20162016-03-232016-12-16
20172017-03-242017-09-23
20182018-05-022018-07-23
20192019-01-112019-11-26
20202020-03-192020-11-24
20212021-03-132021-05-30
20222022-03-162022-12-28
20232023-01-172023-09-14
20242024-02-032024-11-08
20252025-03-292025-09-23
20262026-03-062026-09-25

Every Year

Days with 10 mm (0.39 in) or more of precipitation per year in Denver
YearDaysFirst dateLast dateLongest streak in yearCoverage
202666 March 202625 September 20261 daysIncomplete, not ranked
20251129 March 202523 September 20252 daysComplete
202493 February 20248 November 20242 daysComplete
20231317 January 202314 September 20233 daysComplete
2022916 March 202228 December 20222 daysComplete
2021713 March 202130 May 20212 daysComplete
2020519 March 202024 November 20201 daysComplete
20191211 January 201926 November 20191 daysComplete
201832 May 201823 July 20182 daysComplete
2017724 March 201723 September 20172 daysComplete
2016823 March 201616 December 20162 daysComplete
20151216 April 201516 November 20152 daysComplete
20141011 May 201429 September 20142 daysComplete
2012113 February 201224 October 20122 daysComplete
2011139 January 201126 October 20112 daysComplete
2010923 March 20101 August 20102 daysComplete
20091326 March 20096 August 20093 daysComplete
200881 May 20085 October 20082 daysComplete
2007924 April 200713 October 20071 daysComplete
2006531 May 200620 December 20061 daysComplete
20051010 April 200510 October 20052 daysComplete
20041012 May 200421 September 20041 daysComplete
2003917 March 200330 August 20033 daysComplete
200233 June 200210 July 20021 daysComplete
20011028 January 20018 September 20012 daysComplete
2000915 March 20005 November 20001 daysComplete
19991422 April 199928 September 19992 daysComplete
199862 April 199825 July 19981 daysComplete
19971624 April 199725 October 19973 daysComplete
1996625 May 199618 September 19962 daysComplete
Decade averages for Days with 10 mm (0.39 in) or more of precipitation in Denver
DecadeAverage days per yearYears counted
1990s10.54
2000s8.610
2010s9.49
2020s9.06

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 10 mm (0.39 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).