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Built 2026-10-19 (19 October 2026)

River Plains Threshold Days by Year (ASN00012291)

4 fixed thresholds counted per year at River Plains (ASN00012291): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for River Plains Thresholds

  • River Plains: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 2013 with 17.
  • River Plains: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 2013 with 6.
  • River Plains: days with 50 mm (1.97 in) or more of precipitation in 9 years, most in 1999 with 2.
  • River Plains: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 2007 with 1.
  • 4 fixed thresholds have at least one qualifying day at River Plains.
43 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at River Plains Days per year at River Plains with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 17 in 2013. 051015201984: 71985: 91986: 131987: 91988: 91989: 161990: 81991: 81992: 161993: 131994: 51995: 121996: 51997: 121998: 71999: 92000: 112001: 122002: 52003: 112004: 72005: 72006: 122007: 82008: 72009: 32010: 82011: 152012: 72013: 172014: 102015: 122016: 142017: 122018: 82019: 42020: 72021: 52022: 122023: 32024: 42025: 62026: 5198419891994199920042009201420192024
Days per year at River Plains with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 17 in 2013.
Days with 10 mm (0.39 in) or more of precipitation per year at River Plains
YearDaysDecade average
1984710.5
1985910.5
19861310.5
1987910.5
1988910.5
19891610.5
199089.5
199189.5
1992169.5
1993139.5
199459.5
1995129.5
199659.5
1997129.5
199879.5
199999.5
2000118.3
2001128.3
200258.3
2003118.3
200478.3
200578.3
2006128.3
200788.3
200878.3
200938.3
2010810.7
20111510.7
2012710.7
20131710.7
20141010.7
20151210.7
20161410.7
20171210.7
2018810.7
2019410.7
202076
202156
2022126
202336
202446
202566
202656
First to last qualifying date each year at River Plains For each year, a bar from the first to the last day at River Plains meeting 10 mm (0.39 in). 1984: 18 May 1984 to 10 September 19841985: 10 February 1985 to 22 November 19851986: 22 February 1986 to 30 November 19861987: 26 April 1987 to 8 December 19871988: 14 January 1988 to 2 December 19881989: 17 February 1989 to 12 November 19891990: 13 January 1990 to 2 October 19901991: 23 March 1991 to 28 December 19911992: 9 February 1992 to 8 November 19921993: 2 February 1993 to 10 November 19931994: 24 May 1994 to 16 December 19941995: 9 January 1995 to 24 December 19951996: 25 March 1996 to 24 October 19961997: 20 February 1997 to 13 November 19971998: 10 April 1998 to 4 September 19981999: 5 January 1999 to 1 December 19992000: 12 January 2000 to 26 June 20002001: 24 February 2001 to 1 December 20012002: 18 April 2002 to 28 December 20022003: 18 February 2003 to 28 October 20032004: 6 January 2004 to 21 October 20042005: 1 April 2005 to 7 October 20052006: 3 January 2006 to 30 October 20062007: 4 January 2007 to 18 December 20072008: 21 April 2008 to 27 November 20082009: 28 January 2009 to 5 June 20092010: 10 February 2010 to 11 November 20102011: 6 January 2011 to 14 December 20112012: 6 January 2012 to 25 November 20122013: 2 March 2013 to 7 December 20132014: 8 May 2014 to 22 December 20142015: 27 February 2015 to 6 December 20152016: 24 January 2016 to 19 September 20162017: 30 January 2017 to 23 October 20172018: 18 January 2018 to 17 November 20182019: 24 June 2019 to 15 August 20192020: 12 February 2020 to 17 September 20202021: 6 March 2021 to 27 September 20212022: 4 April 2022 to 13 November 20222023: 9 April 2023 to 11 August 20232024: 26 February 2024 to 18 August 20242025: 16 March 2025 to 23 November 20252026: 11 February 2026 to 15 June 202619841990199620022008201420202026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at River Plains meeting 10 mm (0.39 in).
First to last qualifying date each year at River Plains
YearFirst dateLast date
19841984-05-181984-09-10
19851985-02-101985-11-22
19861986-02-221986-11-30
19871987-04-261987-12-08
19881988-01-141988-12-02
19891989-02-171989-11-12
19901990-01-131990-10-02
19911991-03-231991-12-28
19921992-02-091992-11-08
19931993-02-021993-11-10
19941994-05-241994-12-16
19951995-01-091995-12-24
19961996-03-251996-10-24
19971997-02-201997-11-13
19981998-04-101998-09-04
19991999-01-051999-12-01
20002000-01-122000-06-26
20012001-02-242001-12-01
20022002-04-182002-12-28
20032003-02-182003-10-28
20042004-01-062004-10-21
20052005-04-012005-10-07
20062006-01-032006-10-30
20072007-01-042007-12-18
20082008-04-212008-11-27
20092009-01-282009-06-05
20102010-02-102010-11-11
20112011-01-062011-12-14
20122012-01-062012-11-25
20132013-03-022013-12-07
20142014-05-082014-12-22
20152015-02-272015-12-06
20162016-01-242016-09-19
20172017-01-302017-10-23
20182018-01-182018-11-17
20192019-06-242019-08-15
20202020-02-122020-09-17
20212021-03-062021-09-27
20222022-04-042022-11-13
20232023-04-092023-08-11
20242024-02-262024-08-18
20252025-03-162025-11-23
20262026-02-112026-06-15

Every Fixed Threshold

Fixed thresholds at River Plains
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain431720135
25 mm (0.98 in): Days with 25 mm or more rain34620132
50 mm (1.97 in): Days with 50 mm or more rain9219991
100 mm (3.94 in): Days with 100 mm or more rain1120071

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1984.

Download the Data

  • Data for River Plains 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 (2026-10-12).