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Built 2026-10-19 (19 October 2026)

South Galway Threshold Days by Year (ASN00038056)

5 fixed thresholds counted per year at South Galway (ASN00038056): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for South Galway Thresholds

  • South Galway: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1974 with 21.
  • South Galway: days with 25 mm (0.98 in) or more of precipitation in 37 years, most in 2010 with 8.
  • South Galway: days with 50 mm (1.97 in) or more of precipitation in 21 years, most in 2010 with 3.
  • South Galway: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1977 with 1.
  • 5 fixed thresholds have at least one qualifying day at South Galway.
42 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at South Galway Days per year at South Galway with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1974. 01020301974: 211975: 111976: 151977: 71978: 101979: 101980: 21981: 111982: 11983: 61984: 91986: 71987: 71988: 91989: 111992: 61993: 61995: 81996: 71997: 81998: 111999: 142000: 132001: 62002: 32003: 92004: 42005: 32006: 22007: 52008: 32009: 82010: 162018: 42019: 62020: 82021: 52022: 162023: 112024: 112025: 92026: 6197419791984199219982003200820202025
Days per year at South Galway with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1974.
Days with 10 mm (0.39 in) or more of precipitation per year at South Galway
YearDaysDecade average
19742112.3
19751112.3
19761512.3
1977712.3
19781012.3
19791012.3
198027
1981117
198217
198367
198497
198677
198777
198897
1989117
199268.6
199368.6
199588.6
199678.6
199788.6
1998118.6
1999148.6
2000135.6
200165.6
200235.6
200395.6
200445.6
200535.6
200625.6
200755.6
200835.6
200985.6
2010168.7
201848.7
201968.7
202089.4
202159.4
2022169.4
2023119.4
2024119.4
202599.4
202669.4
First to last qualifying date each year at South Galway For each year, a bar from the first to the last day at South Galway meeting 10 mm (0.39 in). 1974: 1 January 1974 to 17 November 19741975: 29 January 1975 to 27 December 19751976: 13 January 1976 to 21 December 19761977: 23 January 1977 to 28 May 19771978: 24 January 1978 to 2 December 19781979: 21 January 1979 to 29 December 19791980: 2 February 1980 to 3 February 19801981: 16 January 1981 to 19 November 19811982: 17 March 1982 to 17 March 19821983: 30 January 1983 to 18 May 19831984: 2 January 1984 to 19 December 19841986: 2 July 1986 to 6 December 19861987: 27 January 1987 to 27 December 19871988: 30 March 1988 to 26 December 19881989: 2 April 1989 to 2 December 19891992: 4 February 1992 to 20 November 19921993: 15 January 1993 to 3 October 19931995: 17 January 1995 to 9 October 19951996: 15 March 1996 to 28 September 19961997: 4 January 1997 to 12 July 19971998: 9 January 1998 to 12 November 19981999: 1 January 1999 to 27 December 19992000: 21 February 2000 to 28 December 20002001: 12 January 2001 to 24 October 20012002: 7 January 2002 to 29 December 20022003: 9 February 2003 to 30 November 20032004: 15 January 2004 to 25 May 20042005: 11 May 2005 to 19 June 20052006: 3 February 2006 to 14 July 20062007: 21 January 2007 to 27 December 20072008: 1 June 2008 to 9 November 20082009: 12 January 2009 to 31 December 20092010: 14 February 2010 to 10 December 20102018: 8 March 2018 to 13 December 20182019: 31 January 2019 to 1 November 20192020: 24 January 2020 to 21 December 20202021: 5 February 2021 to 30 December 20212022: 14 January 2022 to 24 December 20222023: 10 January 2023 to 22 December 20232024: 6 January 2024 to 2 December 20242025: 30 January 2025 to 18 December 20252026: 26 February 2026 to 1 July 20261974198019871996200220082021JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at South Galway meeting 10 mm (0.39 in).
First to last qualifying date each year at South Galway
YearFirst dateLast date
19741974-01-011974-11-17
19751975-01-291975-12-27
19761976-01-131976-12-21
19771977-01-231977-05-28
19781978-01-241978-12-02
19791979-01-211979-12-29
19801980-02-021980-02-03
19811981-01-161981-11-19
19821982-03-171982-03-17
19831983-01-301983-05-18
19841984-01-021984-12-19
19861986-07-021986-12-06
19871987-01-271987-12-27
19881988-03-301988-12-26
19891989-04-021989-12-02
19921992-02-041992-11-20
19931993-01-151993-10-03
19951995-01-171995-10-09
19961996-03-151996-09-28
19971997-01-041997-07-12
19981998-01-091998-11-12
19991999-01-011999-12-27
20002000-02-212000-12-28
20012001-01-122001-10-24
20022002-01-072002-12-29
20032003-02-092003-11-30
20042004-01-152004-05-25
20052005-05-112005-06-19
20062006-02-032006-07-14
20072007-01-212007-12-27
20082008-06-012008-11-09
20092009-01-122009-12-31
20102010-02-142010-12-10
20182018-03-082018-12-13
20192019-01-312019-11-01
20202020-01-242020-12-21
20212021-02-052021-12-30
20222022-01-142022-12-24
20232023-01-102023-12-22
20242024-01-062024-12-02
20252025-01-302025-12-18
20262026-02-262026-07-01

Every Fixed Threshold

Fixed thresholds at South Galway
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain422119746
25 mm (0.98 in): Days with 25 mm or more rain37820103
50 mm (1.97 in): Days with 50 mm or more rain21320101
100 mm (3.94 in): Days with 100 mm or more rain3119771
200 mm (7.87 in): Days with 200 mm or more rain1120101

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1974.

Download the Data

  • Data for South Galway 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).