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Built 2026-10-19 (19 October 2026)

Perryton 21 S Threshold Days by Year (USC00416952)

6 fixed thresholds counted per year at Perryton 21 S (USC00416952): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Perryton 21 S Thresholds

  • Perryton 21 S: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1997 with 26.
  • Perryton 21 S: days with 25 mm (0.98 in) or more of precipitation in 35 years, most in 1996 with 9.
  • Perryton 21 S: days with 50 mm (1.97 in) or more of precipitation in 24 years, most in 2010 with 3.
  • Perryton 21 S: days with 100 mm (3.94 in) or more of precipitation in 5 years, most in 1986 with 1.
  • 6 fixed thresholds have at least one qualifying day at Perryton 21 S.
36 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Perryton 21 S Days per year at Perryton 21 S with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1997. 01020301979: 211980: 171981: 221982: 211984: 171985: 171986: 161987: 251988: 161989: 161990: 171991: 231993: 171994: 181995: 191996: 241997: 261998: 171999: 182000: 182001: 152002: 252003: 202004: 212005: 182006: 152007: 192008: 202009: 172010: 202011: 72012: 122013: 192014: 212016: 182017: 24197919841988199319972001200520092013
Days per year at Perryton 21 S with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1997.
Days with 10 mm (0.39 in) or more of precipitation per year at Perryton 21 S
YearDaysDecade average
19792121
19801718.6
19812218.6
19822118.6
19841718.6
19851718.6
19861618.6
19872518.6
19881618.6
19891618.6
19901719.9
19912319.9
19931719.9
19941819.9
19951919.9
19962419.9
19972619.9
19981719.9
19991819.9
20001818.8
20011518.8
20022518.8
20032018.8
20042118.8
20051818.8
20061518.8
20071918.8
20082018.8
20091718.8
20102017.3
2011717.3
20121217.3
20131917.3
20142117.3
20161817.3
20172417.3
First to last qualifying date each year at Perryton 21 S For each year, a bar from the first to the last day at Perryton 21 S meeting 10 mm (0.39 in). 1979: 18 January 1979 to 9 November 19791980: 19 January 1980 to 7 December 19801981: 15 March 1981 to 8 November 19811982: 2 February 1982 to 27 November 19821984: 23 March 1984 to 14 December 19841985: 19 March 1985 to 14 November 19851986: 17 April 1986 to 5 November 19861987: 14 February 1987 to 15 December 19871988: 7 January 1988 to 7 October 19881989: 28 March 1989 to 12 September 19891990: 19 January 1990 to 3 October 19901991: 10 January 1991 to 27 December 19911993: 9 January 1993 to 25 September 19931994: 8 March 1994 to 31 December 19941995: 18 April 1995 to 18 December 19951996: 30 March 1996 to 1 December 19961997: 21 February 1997 to 24 December 19971998: 16 February 1998 to 1 November 19981999: 29 January 1999 to 4 December 19992000: 8 March 2000 to 1 November 20002001: 28 January 2001 to 18 November 20012002: 31 January 2002 to 4 December 20022003: 20 March 2003 to 13 November 20032004: 18 January 2004 to 24 November 20042005: 5 January 2005 to 10 October 20052006: 20 March 2006 to 30 December 20062007: 21 January 2007 to 11 December 20072008: 10 April 2008 to 21 October 20082009: 9 February 2009 to 29 October 20092010: 29 January 2010 to 12 November 20102011: 27 April 2011 to 21 December 20112012: 7 February 2012 to 12 October 20122013: 10 January 2013 to 6 November 20132014: 4 February 2014 to 5 December 20142016: 27 March 2016 to 15 September 20162017: 17 January 2017 to 6 October 201719791985199019962001200620112017JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Perryton 21 S meeting 10 mm (0.39 in).
First to last qualifying date each year at Perryton 21 S
YearFirst dateLast date
19791979-01-181979-11-09
19801980-01-191980-12-07
19811981-03-151981-11-08
19821982-02-021982-11-27
19841984-03-231984-12-14
19851985-03-191985-11-14
19861986-04-171986-11-05
19871987-02-141987-12-15
19881988-01-071988-10-07
19891989-03-281989-09-12
19901990-01-191990-10-03
19911991-01-101991-12-27
19931993-01-091993-09-25
19941994-03-081994-12-31
19951995-04-181995-12-18
19961996-03-301996-12-01
19971997-02-211997-12-24
19981998-02-161998-11-01
19991999-01-291999-12-04
20002000-03-082000-11-01
20012001-01-282001-11-18
20022002-01-312002-12-04
20032003-03-202003-11-13
20042004-01-182004-11-24
20052005-01-052005-10-10
20062006-03-202006-12-30
20072007-01-212007-12-11
20082008-04-102008-10-21
20092009-02-092009-10-29
20102010-01-292010-11-12
20112011-04-272011-12-21
20122012-02-072012-10-12
20132013-01-102013-11-06
20142014-02-042014-12-05
20162016-03-272016-09-15
20172017-01-172017-10-06

Every Fixed Threshold

Fixed thresholds at Perryton 21 S
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3626199724
25 mm (0.98 in): Days with 25 mm or more rain35919968
50 mm (1.97 in): Days with 50 mm or more rain24320101
100 mm (3.94 in): Days with 100 mm or more rain5119861
10 cm (3.9 in): Days with 10 cm or more snowfall4219982
25 cm (9.8 in): Days with 25 cm or more snowfall1119971

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1979.

Download the Data

  • Data for Perryton 21 S 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).