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Built 2026-10-16 (16 October 2026)

Roleystone Threshold Days by Year

4 fixed thresholds counted per year at Roleystone (ASN00009113): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Roleystone Thresholds

  • Roleystone: days with 10 mm (0.39 in) or more of precipitation in 54 years, most in 1970 with 48.
  • Roleystone: days with 25 mm (0.98 in) or more of precipitation in 54 years, most in 1965 with 18.
  • Roleystone: days with 50 mm (1.97 in) or more of precipitation in 44 years, most in 1967 with 5.
  • Roleystone: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1967 with 1.
  • 4 fixed thresholds have at least one qualifying day at Roleystone.
54 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Roleystone Days per year at Roleystone with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 1970. 02040601965: 441966: 301967: 331968: 411969: 191970: 481971: 401972: 291973: 461974: 421975: 281976: 301977: 261978: 321979: 281980: 341981: 331982: 291983: 321984: 321990: 381991: 461992: 451993: 321994: 261995: 371996: 421997: 341998: 331999: 402000: 352001: 162002: 332003: 362004: 362005: 372006: 272007: 342009: 362011: 382013: 332014: 282015: 262016: 352017: 322018: 322019: 232020: 272021: 372022: 362023: 252024: 272025: 342026: 21196519711977198319942000200620152021
Days per year at Roleystone with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 1970.
Days with 10 mm (0.39 in) or more of precipitation per year at Roleystone
YearDaysDecade average
19654433.4
19663033.4
19673333.4
19684133.4
19691933.4
19704834.9
19714034.9
19722934.9
19734634.9
19744234.9
19752834.9
19763034.9
19772634.9
19783234.9
19792834.9
19803432
19813332
19822932
19833232
19843232
19903837.3
19914637.3
19924537.3
19933237.3
19942637.3
19953737.3
19964237.3
19973437.3
19983337.3
19994037.3
20003532.2
20011632.2
20023332.2
20033632.2
20043632.2
20053732.2
20062732.2
20073432.2
20093632.2
20113830.9
20133330.9
20142830.9
20152630.9
20163530.9
20173230.9
20183230.9
20192330.9
20202729.6
20213729.6
20223629.6
20232529.6
20242729.6
20253429.6
20262129.6
First to last qualifying date each year at Roleystone For each year, a bar from the first to the last day at Roleystone meeting 10 mm (0.39 in). 1965: 1 May 1965 to 1 December 19651966: 11 March 1966 to 27 December 19661967: 12 April 1967 to 10 December 19671968: 7 January 1968 to 18 November 19681969: 19 March 1969 to 3 November 19691970: 7 February 1970 to 30 December 19701971: 27 March 1971 to 23 November 19711972: 20 April 1972 to 28 October 19721973: 10 January 1973 to 14 October 19731974: 2 April 1974 to 13 November 19741975: 4 May 1975 to 15 November 19751976: 6 January 1976 to 10 November 19761977: 14 May 1977 to 30 October 19771978: 24 February 1978 to 25 November 19781979: 15 March 1979 to 13 November 19791980: 11 February 1980 to 31 December 19801981: 18 February 1981 to 26 October 19811982: 21 January 1982 to 25 October 19821983: 6 February 1983 to 31 December 19831984: 3 March 1984 to 28 December 19841990: 29 January 1990 to 29 October 19901991: 25 February 1991 to 25 December 19911992: 9 February 1992 to 30 November 19921993: 6 February 1993 to 27 October 19931994: 21 May 1994 to 1 October 19941995: 24 February 1995 to 9 November 19951996: 20 April 1996 to 12 December 19961997: 17 March 1997 to 22 November 19971998: 10 March 1998 to 14 November 19981999: 23 January 1999 to 13 December 19992000: 15 January 2000 to 27 November 20002001: 6 May 2001 to 19 November 20012002: 17 April 2002 to 1 November 20022003: 30 March 2003 to 25 November 20032004: 8 May 2004 to 10 November 20042005: 31 March 2005 to 5 November 20052006: 13 January 2006 to 29 November 20062007: 3 January 2007 to 18 December 20072009: 26 February 2009 to 19 November 20092011: 6 January 2011 to 13 December 20112013: 11 March 2013 to 30 November 20132014: 30 March 2014 to 27 November 20142015: 29 January 2015 to 6 December 20152016: 31 January 2016 to 12 December 20162017: 31 January 2017 to 18 December 20172018: 16 January 2018 to 15 October 20182019: 15 April 2019 to 1 November 20192020: 28 February 2020 to 15 November 20202021: 7 February 2021 to 27 October 20212022: 11 April 2022 to 18 November 20222023: 31 March 2023 to 2 October 20232024: 29 May 2024 to 4 October 20242025: 14 March 2025 to 25 October 20252026: 28 March 2026 to 27 August 202619651972197919911998200520152022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Roleystone meeting 10 mm (0.39 in).
First to last qualifying date each year at Roleystone
YearFirst dateLast date
19651965-05-011965-12-01
19661966-03-111966-12-27
19671967-04-121967-12-10
19681968-01-071968-11-18
19691969-03-191969-11-03
19701970-02-071970-12-30
19711971-03-271971-11-23
19721972-04-201972-10-28
19731973-01-101973-10-14
19741974-04-021974-11-13
19751975-05-041975-11-15
19761976-01-061976-11-10
19771977-05-141977-10-30
19781978-02-241978-11-25
19791979-03-151979-11-13
19801980-02-111980-12-31
19811981-02-181981-10-26
19821982-01-211982-10-25
19831983-02-061983-12-31
19841984-03-031984-12-28
19901990-01-291990-10-29
19911991-02-251991-12-25
19921992-02-091992-11-30
19931993-02-061993-10-27
19941994-05-211994-10-01
19951995-02-241995-11-09
19961996-04-201996-12-12
19971997-03-171997-11-22
19981998-03-101998-11-14
19991999-01-231999-12-13
20002000-01-152000-11-27
20012001-05-062001-11-19
20022002-04-172002-11-01
20032003-03-302003-11-25
20042004-05-082004-11-10
20052005-03-312005-11-05
20062006-01-132006-11-29
20072007-01-032007-12-18
20092009-02-262009-11-19
20112011-01-062011-12-13
20132013-03-112013-11-30
20142014-03-302014-11-27
20152015-01-292015-12-06
20162016-01-312016-12-12
20172017-01-312017-12-18
20182018-01-162018-10-15
20192019-04-152019-11-01
20202020-02-282020-11-15
20212021-02-072021-10-27
20222022-04-112022-11-18
20232023-03-312023-10-02
20242024-05-292024-10-04
20252025-03-142025-10-25
20262026-03-282026-08-27

Every Fixed Threshold

Fixed thresholds at Roleystone
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain5448197021
25 mm (0.98 in): Days with 25 mm or more rain541819653
50 mm (1.97 in): Days with 50 mm or more rain44519671
100 mm (3.94 in): Days with 100 mm or more rain4119671

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1965.

Download the Data

  • Data for Roleystone 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 (2026-10-12).