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Built 2026-10-16 (16 October 2026)

Swansea (Catherine St) Threshold Days by Year

5 fixed thresholds counted per year at Swansea (Catherine St) (ASN00061377): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Swansea (Catherine St) Thresholds

  • Swansea (Catherine St): days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 2025 with 57.
  • Swansea (Catherine St): days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1990 with 20.
  • Swansea (Catherine St): days with 50 mm (1.97 in) or more of precipitation in 35 years, most in 1990 with 9.
  • Swansea (Catherine St): days with 100 mm (3.94 in) or more of precipitation in 18 years, most in 1988 with 2.
  • 5 fixed thresholds have at least one qualifying day at Swansea (Catherine St).
38 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Swansea (Catherine St) Days per year at Swansea (Catherine St) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 57 in 2025. 02040601988: 411989: 461990: 481991: 281992: 311994: 291995: 411996: 381997: 331998: 371999: 392000: 252001: 342002: 282003: 242004: 262005: 212006: 332007: 362008: 352009: 282010: 362011: 382012: 372013: 392014: 262015: 392016: 322017: 332018: 272019: 212020: 382021: 372022: 542023: 302024: 402025: 572026: 191988199219972001200520092013201720212025
Days per year at Swansea (Catherine St) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 57 in 2025.
Days with 10 mm (0.39 in) or more of precipitation per year at Swansea (Catherine St)
YearDaysDecade average
19884143.5
19894643.5
19904836
19912836
19923136
19942936
19954136
19963836
19973336
19983736
19993936
20002529
20013429
20022829
20032429
20042629
20052129
20063329
20073629
20083529
20092829
20103632.8
20113832.8
20123732.8
20133932.8
20142632.8
20153932.8
20163232.8
20173332.8
20182732.8
20192132.8
20203839.3
20213739.3
20225439.3
20233039.3
20244039.3
20255739.3
20261939.3
First to last qualifying date each year at Swansea (Catherine St) For each year, a bar from the first to the last day at Swansea (Catherine St) meeting 10 mm (0.39 in). 1988: 17 January 1988 to 27 December 19881989: 2 January 1989 to 12 December 19891990: 7 January 1990 to 10 December 19901991: 6 January 1991 to 23 December 19911992: 25 January 1992 to 22 December 19921994: 18 January 1994 to 26 December 19941995: 3 January 1995 to 11 December 19951996: 3 January 1996 to 30 December 19961997: 29 January 1997 to 22 December 19971998: 8 February 1998 to 15 December 19981999: 9 January 1999 to 29 December 19992000: 8 January 2000 to 7 December 20002001: 1 February 2001 to 8 December 20012002: 1 February 2002 to 12 December 20022003: 24 February 2003 to 24 November 20032004: 16 January 2004 to 14 December 20042005: 25 January 2005 to 3 December 20052006: 7 January 2006 to 16 December 20062007: 8 February 2007 to 14 December 20072008: 19 January 2008 to 24 December 20082009: 15 January 2009 to 28 December 20092010: 17 January 2010 to 16 December 20102011: 9 January 2011 to 19 December 20112012: 25 January 2012 to 25 December 20122013: 13 January 2013 to 26 December 20132014: 14 February 2014 to 26 December 20142015: 19 January 2015 to 23 December 20152016: 4 January 2016 to 16 December 20162017: 25 January 2017 to 2 December 20172018: 2 February 2018 to 20 December 20182019: 2 February 2019 to 27 November 20192020: 18 January 2020 to 31 December 20202021: 5 January 2021 to 26 November 20212022: 6 January 2022 to 19 December 20222023: 7 January 2023 to 21 December 20232024: 10 February 2024 to 18 November 20242025: 7 January 2025 to 13 December 20252026: 5 January 2026 to 28 September 202619881994199920042009201420192024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Swansea (Catherine St) meeting 10 mm (0.39 in).
First to last qualifying date each year at Swansea (Catherine St)
YearFirst dateLast date
19881988-01-171988-12-27
19891989-01-021989-12-12
19901990-01-071990-12-10
19911991-01-061991-12-23
19921992-01-251992-12-22
19941994-01-181994-12-26
19951995-01-031995-12-11
19961996-01-031996-12-30
19971997-01-291997-12-22
19981998-02-081998-12-15
19991999-01-091999-12-29
20002000-01-082000-12-07
20012001-02-012001-12-08
20022002-02-012002-12-12
20032003-02-242003-11-24
20042004-01-162004-12-14
20052005-01-252005-12-03
20062006-01-072006-12-16
20072007-02-082007-12-14
20082008-01-192008-12-24
20092009-01-152009-12-28
20102010-01-172010-12-16
20112011-01-092011-12-19
20122012-01-252012-12-25
20132013-01-132013-12-26
20142014-02-142014-12-26
20152015-01-192015-12-23
20162016-01-042016-12-16
20172017-01-252017-12-02
20182018-02-022018-12-20
20192019-02-022019-11-27
20202020-01-182020-12-31
20212021-01-052021-11-26
20222022-01-062022-12-19
20232023-01-072023-12-21
20242024-02-102024-11-18
20252025-01-072025-12-13
20262026-01-052026-09-28

Every Fixed Threshold

Fixed thresholds at Swansea (Catherine St)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3857202519
25 mm (0.98 in): Days with 25 mm or more rain382019907
50 mm (1.97 in): Days with 50 mm or more rain35919902
100 mm (3.94 in): Days with 100 mm or more rain18219881
200 mm (7.87 in): Days with 200 mm or more rain2119901

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1988.

Download the Data

  • Data for Swansea (Catherine St) 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-14).