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Built 2026-10-17 (17 October 2026)

Aston Downs Threshold Days by Year

4 fixed thresholds counted per year at Aston Downs (ASN00009909): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Aston Downs Thresholds

  • Aston Downs: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1974 with 47.
  • Aston Downs: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 1999 with 14.
  • Aston Downs: days with 50 mm (1.97 in) or more of precipitation in 30 years, most in 1999 with 4.
  • Aston Downs: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1991 with 1.
  • 4 fixed thresholds have at least one qualifying day at Aston Downs.
46 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Aston Downs Days per year at Aston Downs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 47 in 1974. 02040601973: 331974: 471976: 281977: 261978: 361979: 201980: 321981: 311982: 281983: 381984: 361985: 261986: 311987: 231989: 221990: 331991: 361992: 321993: 211994: 241995: 321996: 421997: 271998: 281999: 332000: 312001: 162002: 282003: 242004: 202005: 282006: 172013: 322014: 292015: 242016: 272017: 212018: 212019: 232020: 292021: 282022: 232023: 182024: 272025: 322026: 201973197919841990199520002005201620212026
Days per year at Aston Downs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 47 in 1974.
Days with 10 mm (0.39 in) or more of precipitation per year at Aston Downs
YearDaysDecade average
19733331.7
19744731.7
19762831.7
19772631.7
19783631.7
19792031.7
19803229.7
19813129.7
19822829.7
19833829.7
19843629.7
19852629.7
19863129.7
19872329.7
19892229.7
19903330.8
19913630.8
19923230.8
19932130.8
19942430.8
19953230.8
19964230.8
19972730.8
19982830.8
19993330.8
20003123.4
20011623.4
20022823.4
20032423.4
20042023.4
20052823.4
20061723.4
20133225.3
20142925.3
20152425.3
20162725.3
20172125.3
20182125.3
20192325.3
20202925.3
20212825.3
20222325.3
20231825.3
20242725.3
20253225.3
20262025.3
First to last qualifying date each year at Aston Downs For each year, a bar from the first to the last day at Aston Downs meeting 10 mm (0.39 in). 1973: 9 April 1973 to 17 October 19731974: 28 January 1974 to 30 October 19741976: 7 January 1976 to 28 November 19761977: 15 May 1977 to 27 October 19771978: 17 February 1978 to 22 December 19781979: 11 February 1979 to 13 November 19791980: 11 February 1980 to 15 December 19801981: 6 March 1981 to 26 November 19811982: 21 January 1982 to 11 December 19821983: 6 February 1983 to 7 November 19831984: 29 April 1984 to 28 December 19841985: 9 April 1985 to 8 November 19851986: 27 February 1986 to 17 October 19861987: 17 March 1987 to 24 December 19871989: 3 April 1989 to 21 October 19891990: 21 January 1990 to 29 October 19901991: 27 February 1991 to 13 November 19911992: 17 March 1992 to 19 November 19921993: 20 March 1993 to 30 September 19931994: 20 May 1994 to 14 October 19941995: 14 April 1995 to 18 October 19951996: 8 May 1996 to 12 December 19961997: 24 February 1997 to 21 November 19971998: 16 January 1998 to 22 September 19981999: 8 March 1999 to 8 October 19992000: 15 January 2000 to 6 September 20002001: 6 May 2001 to 4 December 20012002: 7 April 2002 to 1 November 20022003: 12 April 2003 to 18 November 20032004: 7 May 2004 to 19 September 20042005: 10 March 2005 to 6 October 20052006: 25 January 2006 to 29 November 20062013: 15 March 2013 to 30 November 20132014: 30 March 2014 to 6 October 20142015: 15 March 2015 to 31 October 20152016: 19 January 2016 to 8 October 20162017: 14 February 2017 to 18 December 20172018: 17 January 2018 to 14 October 20182019: 23 January 2019 to 31 October 20192020: 27 February 2020 to 10 November 20202021: 7 February 2021 to 27 October 20212022: 26 April 2022 to 30 October 20222023: 11 April 2023 to 2 October 20232024: 2 May 2024 to 20 November 20242025: 14 March 2025 to 6 November 20252026: 28 March 2026 to 26 August 202619731980198619931999200520172023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Aston Downs meeting 10 mm (0.39 in).
First to last qualifying date each year at Aston Downs
YearFirst dateLast date
19731973-04-091973-10-17
19741974-01-281974-10-30
19761976-01-071976-11-28
19771977-05-151977-10-27
19781978-02-171978-12-22
19791979-02-111979-11-13
19801980-02-111980-12-15
19811981-03-061981-11-26
19821982-01-211982-12-11
19831983-02-061983-11-07
19841984-04-291984-12-28
19851985-04-091985-11-08
19861986-02-271986-10-17
19871987-03-171987-12-24
19891989-04-031989-10-21
19901990-01-211990-10-29
19911991-02-271991-11-13
19921992-03-171992-11-19
19931993-03-201993-09-30
19941994-05-201994-10-14
19951995-04-141995-10-18
19961996-05-081996-12-12
19971997-02-241997-11-21
19981998-01-161998-09-22
19991999-03-081999-10-08
20002000-01-152000-09-06
20012001-05-062001-12-04
20022002-04-072002-11-01
20032003-04-122003-11-18
20042004-05-072004-09-19
20052005-03-102005-10-06
20062006-01-252006-11-29
20132013-03-152013-11-30
20142014-03-302014-10-06
20152015-03-152015-10-31
20162016-01-192016-10-08
20172017-02-142017-12-18
20182018-01-172018-10-14
20192019-01-232019-10-31
20202020-02-272020-11-10
20212021-02-072021-10-27
20222022-04-262022-10-30
20232023-04-112023-10-02
20242024-05-022024-11-20
20252025-03-142025-11-06
20262026-03-282026-08-26

Every Fixed Threshold

Fixed thresholds at Aston Downs
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4647197420
25 mm (0.98 in): Days with 25 mm or more rain461419994
50 mm (1.97 in): Days with 50 mm or more rain30419992
100 mm (3.94 in): Days with 100 mm or more rain2119911

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1973.

Download the Data

  • Data for Aston Downs 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 (2026-10-12).