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Built 2026-10-19 (19 October 2026)

Rosson Threshold Days by Year (SWE00140214)

3 fixed thresholds counted per year at Rosson (SWE00140214): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rosson Thresholds

  • Rosson: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 2000 with 26.
  • Rosson: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1993 with 5.
  • Rosson: days with 50 mm (1.97 in) or more of precipitation in 3 years, most in 1977 with 1.
  • 3 fixed thresholds have at least one qualifying day at Rosson.
52 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Rosson Days per year at Rosson with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 2000. 01020301973: 121974: 161975: 81976: 71977: 91978: 121979: 171981: 101982: 111983: 131984: 181985: 231986: 101987: 171988: 91989: 151991: 171992: 181993: 211994: 51995: 131996: 171997: 141998: 201999: 132000: 262001: 212002: 102003: 182004: 112005: 172006: 262007: 52008: 102009: 162010: 122011: 162012: 172013: 112014: 102015: 142016: 92017: 162018: 92019: 152020: 182021: 182022: 192023: 172024: 222025: 182026: 10197319791986199319992005201120172023
Days per year at Rosson with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 2000.
Days with 10 mm (0.39 in) or more of precipitation per year at Rosson
YearDaysDecade average
19731211.6
19741611.6
1975811.6
1976711.6
1977911.6
19781211.6
19791711.6
19811014
19821114
19831314
19841814
19852314
19861014
19871714
1988914
19891514
19911715.3
19921815.3
19932115.3
1994515.3
19951315.3
19961715.3
19971415.3
19982015.3
19991315.3
20002616
20012116
20021016
20031816
20041116
20051716
20062616
2007516
20081016
20091616
20101212.9
20111612.9
20121712.9
20131112.9
20141012.9
20151412.9
2016912.9
20171612.9
2018912.9
20191512.9
20201817.4
20211817.4
20221917.4
20231717.4
20242217.4
20251817.4
20261017.4
First to last qualifying date each year at Rosson For each year, a bar from the first to the last day at Rosson meeting 10 mm (0.39 in). 1973: 2 April 1973 to 2 December 19731974: 12 February 1974 to 30 September 19741975: 13 January 1975 to 24 August 19751976: 14 June 1976 to 10 September 19761977: 1 January 1977 to 11 October 19771978: 30 January 1978 to 24 September 19781979: 19 May 1979 to 29 November 19791981: 14 January 1981 to 28 November 19811982: 6 February 1982 to 15 December 19821983: 27 January 1983 to 13 October 19831984: 29 March 1984 to 27 November 19841985: 21 May 1985 to 21 December 19851986: 26 April 1986 to 5 December 19861987: 13 February 1987 to 31 December 19871988: 23 May 1988 to 22 December 19881989: 10 March 1989 to 18 December 19891991: 15 May 1991 to 7 November 19911992: 3 April 1992 to 3 December 19921993: 15 January 1993 to 19 December 19931994: 23 January 1994 to 15 September 19941995: 10 January 1995 to 25 November 19951996: 12 June 1996 to 11 December 19961997: 26 March 1997 to 15 December 19971998: 12 January 1998 to 14 December 19981999: 16 January 1999 to 17 December 19992000: 29 January 2000 to 15 December 20002001: 7 February 2001 to 1 December 20012002: 28 January 2002 to 5 September 20022003: 20 January 2003 to 27 December 20032004: 3 February 2004 to 25 October 20042005: 12 April 2005 to 5 November 20052006: 30 January 2006 to 30 December 20062007: 8 January 2007 to 29 December 20072008: 4 April 2008 to 12 December 20082009: 26 May 2009 to 25 November 20092010: 27 January 2010 to 29 July 20102011: 11 May 2011 to 12 December 20112012: 1 January 2012 to 29 December 20122013: 19 June 2013 to 21 December 20132014: 20 March 2014 to 23 December 20142015: 27 March 2015 to 20 December 20152016: 6 April 2016 to 29 September 20162017: 28 February 2017 to 7 December 20172018: 4 April 2018 to 9 December 20182019: 3 February 2019 to 10 December 20192020: 27 January 2020 to 26 December 20202021: 11 January 2021 to 10 October 20212022: 4 January 2022 to 9 November 20222023: 7 January 2023 to 4 November 20232024: 12 January 2024 to 18 December 20242025: 23 May 2025 to 10 December 20252026: 10 May 2026 to 31 August 202619731981198819962003201020172024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rosson meeting 10 mm (0.39 in).
First to last qualifying date each year at Rosson
YearFirst dateLast date
19731973-04-021973-12-02
19741974-02-121974-09-30
19751975-01-131975-08-24
19761976-06-141976-09-10
19771977-01-011977-10-11
19781978-01-301978-09-24
19791979-05-191979-11-29
19811981-01-141981-11-28
19821982-02-061982-12-15
19831983-01-271983-10-13
19841984-03-291984-11-27
19851985-05-211985-12-21
19861986-04-261986-12-05
19871987-02-131987-12-31
19881988-05-231988-12-22
19891989-03-101989-12-18
19911991-05-151991-11-07
19921992-04-031992-12-03
19931993-01-151993-12-19
19941994-01-231994-09-15
19951995-01-101995-11-25
19961996-06-121996-12-11
19971997-03-261997-12-15
19981998-01-121998-12-14
19991999-01-161999-12-17
20002000-01-292000-12-15
20012001-02-072001-12-01
20022002-01-282002-09-05
20032003-01-202003-12-27
20042004-02-032004-10-25
20052005-04-122005-11-05
20062006-01-302006-12-30
20072007-01-082007-12-29
20082008-04-042008-12-12
20092009-05-262009-11-25
20102010-01-272010-07-29
20112011-05-112011-12-12
20122012-01-012012-12-29
20132013-06-192013-12-21
20142014-03-202014-12-23
20152015-03-272015-12-20
20162016-04-062016-09-29
20172017-02-282017-12-07
20182018-04-042018-12-09
20192019-02-032019-12-10
20202020-01-272020-12-26
20212021-01-112021-10-10
20222022-01-042022-11-09
20232023-01-072023-11-04
20242024-01-122024-12-18
20252025-05-232025-12-10
20262026-05-102026-08-31

Every Fixed Threshold

Fixed thresholds at Rosson
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain5226200010
25 mm (0.98 in): Days with 25 mm or more rain38519933
50 mm (1.97 in): Days with 50 mm or more rain3119771

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 Rosson 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).