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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Keuruu Riiho Threshold Days by Year (FIE00143656)

3 fixed thresholds counted per year at Keuruu Riiho (FIE00143656): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Keuruu Riiho Thresholds

  • Keuruu Riiho: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 1981 with 22.
  • Keuruu Riiho: days with 25 mm (0.98 in) or more of precipitation in 17 years, most in 1991 with 4.
  • Keuruu Riiho: days with 50 mm (1.97 in) or more of precipitation in 1 years, most in 1990 with 1.
  • 3 fixed thresholds have at least one qualifying day at Keuruu Riiho.
29 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Keuruu Riiho Days per year at Keuruu Riiho with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 22 in 1981. 01020301965: 101967: 91970: 61971: 61972: 131973: 71974: 191975: 61976: 101977: 131978: 131979: 131981: 221982: 121983: 171984: 151985: 101986: 191987: 111988: 181989: 91990: 101991: 111992: 111993: 101994: 101995: 81996: 111998: 121965197119741977198119841987199019931996
Days per year at Keuruu Riiho with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 22 in 1981.
Days with 10 mm (0.39 in) or more of precipitation per year at Keuruu Riiho
YearDaysDecade average
1965109.5
196799.5
1970610.6
1971610.6
19721310.6
1973710.6
19741910.6
1975610.6
19761010.6
19771310.6
19781310.6
19791310.6
19812214.8
19821214.8
19831714.8
19841514.8
19851014.8
19861914.8
19871114.8
19881814.8
1989914.8
19901010.4
19911110.4
19921110.4
19931010.4
19941010.4
1995810.4
19961110.4
19981210.4
First to last qualifying date each year at Keuruu Riiho For each year, a bar from the first to the last day at Keuruu Riiho meeting 10 mm (0.39 in). 1965: 21 May 1965 to 18 December 19651967: 21 March 1967 to 6 December 19671970: 15 July 1970 to 20 December 19701971: 28 June 1971 to 20 October 19711972: 8 February 1972 to 22 August 19721973: 30 April 1973 to 30 December 19731974: 29 June 1974 to 17 November 19741975: 17 January 1975 to 28 September 19751976: 22 July 1976 to 6 October 19761977: 27 January 1977 to 25 November 19771978: 31 March 1978 to 14 November 19781979: 13 January 1979 to 29 November 19791981: 2 February 1981 to 3 December 19811982: 24 May 1982 to 28 November 19821983: 5 January 1983 to 30 December 19831984: 4 May 1984 to 27 October 19841985: 2 April 1985 to 12 October 19851986: 29 April 1986 to 5 December 19861987: 4 June 1987 to 29 December 19871988: 16 February 1988 to 13 December 19881989: 28 April 1989 to 23 August 19891990: 10 January 1990 to 13 September 19901991: 15 June 1991 to 15 November 19911992: 13 February 1992 to 20 October 19921993: 5 July 1993 to 16 December 19931994: 7 April 1994 to 3 October 19941995: 4 June 1995 to 25 September 19951996: 19 June 1996 to 19 November 19961998: 19 January 1998 to 14 October 199819651972197619811985198919931998JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Keuruu Riiho meeting 10 mm (0.39 in).
First to last qualifying date each year at Keuruu Riiho
YearFirst dateLast date
19651965-05-211965-12-18
19671967-03-211967-12-06
19701970-07-151970-12-20
19711971-06-281971-10-20
19721972-02-081972-08-22
19731973-04-301973-12-30
19741974-06-291974-11-17
19751975-01-171975-09-28
19761976-07-221976-10-06
19771977-01-271977-11-25
19781978-03-311978-11-14
19791979-01-131979-11-29
19811981-02-021981-12-03
19821982-05-241982-11-28
19831983-01-051983-12-30
19841984-05-041984-10-27
19851985-04-021985-10-12
19861986-04-291986-12-05
19871987-06-041987-12-29
19881988-02-161988-12-13
19891989-04-281989-08-23
19901990-01-101990-09-13
19911991-06-151991-11-15
19921992-02-131992-10-20
19931993-07-051993-12-16
19941994-04-071994-10-03
19951995-06-041995-09-25
19961996-06-191996-11-19
19981998-01-191998-10-14

Every Fixed Threshold

Fixed thresholds at Keuruu Riiho
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2922198112
25 mm (0.98 in): Days with 25 mm or more rain17419911
50 mm (1.97 in): Days with 50 mm or more rain1119901

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 Keuruu Riiho 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 (2025-12-31).