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Built 2026-10-17 (17 October 2026)

Wallen Threshold Days by Year

4 fixed thresholds counted per year at Wallen (ASN00044174): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Wallen Thresholds

  • Wallen: days with 10 mm (0.39 in) or more of precipitation in 47 years, most in 1999 with 25.
  • Wallen: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 2000 with 8.
  • Wallen: days with 50 mm (1.97 in) or more of precipitation in 25 years, most in 2025 with 4.
  • Wallen: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1979 with 1.
  • 4 fixed thresholds have at least one qualifying day at Wallen.
47 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Wallen Days per year at Wallen with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 25 in 1999. 01020301975: 131976: 101977: 161978: 211979: 81980: 131981: 151982: 31983: 171984: 111985: 131986: 91987: 141988: 141989: 151990: 201991: 71992: 131993: 111994: 91995: 171996: 131997: 111998: 231999: 252000: 192001: 102002: 42003: 122004: 112005: 82006: 82008: 182009: 92014: 142015: 82016: 122017: 52018: 72019: 52020: 112021: 132022: 202023: 122024: 162025: 172026: 71975198019851990199520002005201520202025
Days per year at Wallen with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 25 in 1999.
Days with 10 mm (0.39 in) or more of precipitation per year at Wallen
YearDaysDecade average
19751313.6
19761013.6
19771613.6
19782113.6
1979813.6
19801312.4
19811512.4
1982312.4
19831712.4
19841112.4
19851312.4
1986912.4
19871412.4
19881412.4
19891512.4
19902014.9
1991714.9
19921314.9
19931114.9
1994914.9
19951714.9
19961314.9
19971114.9
19982314.9
19992514.9
20001911
20011011
2002411
20031211
20041111
2005811
2006811
20081811
2009911
2014148.5
201588.5
2016128.5
201758.5
201878.5
201958.5
20201113.7
20211313.7
20222013.7
20231213.7
20241613.7
20251713.7
2026713.7
First to last qualifying date each year at Wallen For each year, a bar from the first to the last day at Wallen meeting 10 mm (0.39 in). 1975: 3 January 1975 to 28 December 19751976: 12 January 1976 to 23 December 19761977: 21 January 1977 to 24 June 19771978: 24 January 1978 to 26 December 19781979: 19 February 1979 to 17 October 19791980: 29 January 1980 to 3 December 19801981: 17 January 1981 to 24 December 19811982: 21 January 1982 to 5 May 19821983: 13 February 1983 to 31 December 19831984: 1 January 1984 to 16 September 19841985: 8 July 1985 to 15 November 19851986: 17 January 1986 to 13 November 19861987: 26 January 1987 to 30 December 19871988: 31 March 1988 to 27 December 19881989: 6 March 1989 to 18 November 19891990: 20 January 1990 to 27 July 19901991: 5 January 1991 to 18 December 19911992: 31 January 1992 to 19 December 19921993: 28 January 1993 to 23 December 19931994: 2 February 1994 to 17 December 19941995: 4 January 1995 to 30 December 19951996: 9 January 1996 to 8 December 19961997: 13 January 1997 to 10 December 19971998: 8 January 1998 to 24 September 19981999: 1 January 1999 to 27 December 19992000: 14 February 2000 to 5 December 20002001: 1 February 2001 to 6 November 20012002: 7 January 2002 to 26 February 20022003: 8 February 2003 to 5 December 20032004: 13 January 2004 to 9 September 20042005: 20 February 2005 to 4 November 20052006: 17 February 2006 to 25 December 20062008: 17 January 2008 to 28 December 20082009: 22 January 2009 to 31 December 20092014: 10 January 2014 to 27 December 20142015: 3 January 2015 to 1 November 20152016: 3 January 2016 to 16 December 20162017: 20 May 2017 to 2 December 20172018: 4 March 2018 to 13 December 20182019: 26 March 2019 to 30 October 20192020: 17 January 2020 to 30 December 20202021: 4 January 2021 to 1 December 20212022: 20 January 2022 to 20 October 20222023: 22 January 2023 to 15 December 20232024: 8 January 2024 to 10 December 20242025: 5 February 2025 to 12 December 20252026: 5 January 2026 to 25 August 202619751981198719931999200520162022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Wallen meeting 10 mm (0.39 in).
First to last qualifying date each year at Wallen
YearFirst dateLast date
19751975-01-031975-12-28
19761976-01-121976-12-23
19771977-01-211977-06-24
19781978-01-241978-12-26
19791979-02-191979-10-17
19801980-01-291980-12-03
19811981-01-171981-12-24
19821982-01-211982-05-05
19831983-02-131983-12-31
19841984-01-011984-09-16
19851985-07-081985-11-15
19861986-01-171986-11-13
19871987-01-261987-12-30
19881988-03-311988-12-27
19891989-03-061989-11-18
19901990-01-201990-07-27
19911991-01-051991-12-18
19921992-01-311992-12-19
19931993-01-281993-12-23
19941994-02-021994-12-17
19951995-01-041995-12-30
19961996-01-091996-12-08
19971997-01-131997-12-10
19981998-01-081998-09-24
19991999-01-011999-12-27
20002000-02-142000-12-05
20012001-02-012001-11-06
20022002-01-072002-02-26
20032003-02-082003-12-05
20042004-01-132004-09-09
20052005-02-202005-11-04
20062006-02-172006-12-25
20082008-01-172008-12-28
20092009-01-222009-12-31
20142014-01-102014-12-27
20152015-01-032015-11-01
20162016-01-032016-12-16
20172017-05-202017-12-02
20182018-03-042018-12-13
20192019-03-262019-10-30
20202020-01-172020-12-30
20212021-01-042021-12-01
20222022-01-202022-10-20
20232023-01-222023-12-15
20242024-01-082024-12-10
20252025-02-052025-12-12
20262026-01-052026-08-25

Every Fixed Threshold

Fixed thresholds at Wallen
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain472519997
25 mm (0.98 in): Days with 25 mm or more rain43820001
50 mm (1.97 in): Days with 50 mm or more rain25420251
100 mm (3.94 in): Days with 100 mm or more rain3119791

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1975.

Download the Data

  • Data for Wallen 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-15).