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Built 2026-10-19 (19 October 2026)

Simo Simoniemi Threshold Days by Year (FIE00145857)

3 fixed thresholds counted per year at Simo Simoniemi (FIE00145857): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Simo Simoniemi Thresholds

  • Simo Simoniemi: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1998 with 27.
  • Simo Simoniemi: days with 25 mm (0.98 in) or more of precipitation in 21 years, most in 1992 with 4.
  • Simo Simoniemi: days with 50 mm (1.97 in) or more of precipitation in 1 years, most in 1986 with 1.
  • 3 fixed thresholds have at least one qualifying day at Simo Simoniemi.
43 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Simo Simoniemi Days per year at Simo Simoniemi with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1998. 01020301965: 101966: 111967: 121968: 71969: 81970: 141971: 61972: 161973: 101974: 131975: 91976: 81977: 131978: 71979: 141980: 81981: 121982: 111983: 131984: 111985: 131986: 121987: 141988: 71989: 171990: 71991: 111992: 161993: 121994: 81995: 81996: 81997: 111998: 271999: 152000: 212001: 132002: 132003: 92004: 112005: 192006: 92007: 15196519701975198019851990199520002005
Days per year at Simo Simoniemi with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1998.
Days with 10 mm (0.39 in) or more of precipitation per year at Simo Simoniemi
YearDaysDecade average
1965109.6
1966119.6
1967129.6
196879.6
196989.6
19701411
1971611
19721611
19731011
19741311
1975911
1976811
19771311
1978711
19791411
1980811.8
19811211.8
19821111.8
19831311.8
19841111.8
19851311.8
19861211.8
19871411.8
1988711.8
19891711.8
1990712.3
19911112.3
19921612.3
19931212.3
1994812.3
1995812.3
1996812.3
19971112.3
19982712.3
19991512.3
20002113.8
20011313.8
20021313.8
2003913.8
20041113.8
20051913.8
2006913.8
20071513.8
First to last qualifying date each year at Simo Simoniemi For each year, a bar from the first to the last day at Simo Simoniemi meeting 10 mm (0.39 in). 1965: 13 January 1965 to 31 October 19651966: 2 June 1966 to 3 December 19661967: 5 March 1967 to 15 November 19671968: 5 March 1968 to 22 November 19681969: 6 March 1969 to 12 November 19691970: 5 May 1970 to 19 December 19701971: 23 January 1971 to 12 October 19711972: 13 April 1972 to 6 December 19721973: 7 April 1973 to 15 October 19731974: 8 February 1974 to 27 December 19741975: 13 June 1975 to 2 December 19751976: 13 July 1976 to 29 November 19761977: 17 March 1977 to 29 September 19771978: 9 June 1978 to 17 September 19781979: 29 April 1979 to 19 November 19791980: 9 May 1980 to 1 December 19801981: 25 May 1981 to 19 November 19811982: 28 May 1982 to 23 October 19821983: 2 January 1983 to 5 October 19831984: 12 January 1984 to 28 November 19841985: 15 July 1985 to 11 October 19851986: 13 May 1986 to 21 November 19861987: 13 February 1987 to 16 October 19871988: 17 May 1988 to 9 October 19881989: 14 January 1989 to 11 November 19891990: 3 February 1990 to 2 December 19901991: 19 June 1991 to 13 November 19911992: 16 June 1992 to 3 December 19921993: 7 February 1993 to 20 December 19931994: 14 May 1994 to 10 December 19941995: 5 February 1995 to 23 November 19951996: 13 July 1996 to 23 December 19961997: 2 March 1997 to 18 October 19971998: 16 January 1998 to 12 November 19981999: 3 January 1999 to 14 December 19992000: 29 January 2000 to 2 December 20002001: 9 January 2001 to 21 November 20012002: 18 January 2002 to 20 December 20022003: 21 January 2003 to 16 November 20032004: 12 July 2004 to 31 October 20042005: 18 January 2005 to 24 December 20052006: 24 January 2006 to 11 December 20062007: 4 January 2007 to 6 December 200719651971197719831989199520012007JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Simo Simoniemi meeting 10 mm (0.39 in).
First to last qualifying date each year at Simo Simoniemi
YearFirst dateLast date
19651965-01-131965-10-31
19661966-06-021966-12-03
19671967-03-051967-11-15
19681968-03-051968-11-22
19691969-03-061969-11-12
19701970-05-051970-12-19
19711971-01-231971-10-12
19721972-04-131972-12-06
19731973-04-071973-10-15
19741974-02-081974-12-27
19751975-06-131975-12-02
19761976-07-131976-11-29
19771977-03-171977-09-29
19781978-06-091978-09-17
19791979-04-291979-11-19
19801980-05-091980-12-01
19811981-05-251981-11-19
19821982-05-281982-10-23
19831983-01-021983-10-05
19841984-01-121984-11-28
19851985-07-151985-10-11
19861986-05-131986-11-21
19871987-02-131987-10-16
19881988-05-171988-10-09
19891989-01-141989-11-11
19901990-02-031990-12-02
19911991-06-191991-11-13
19921992-06-161992-12-03
19931993-02-071993-12-20
19941994-05-141994-12-10
19951995-02-051995-11-23
19961996-07-131996-12-23
19971997-03-021997-10-18
19981998-01-161998-11-12
19991999-01-031999-12-14
20002000-01-292000-12-02
20012001-01-092001-11-21
20022002-01-182002-12-20
20032003-01-212003-11-16
20042004-07-122004-10-31
20052005-01-182005-12-24
20062006-01-242006-12-11
20072007-01-042007-12-06

Every Fixed Threshold

Fixed thresholds at Simo Simoniemi
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4327199815
25 mm (0.98 in): Days with 25 mm or more rain21419922
50 mm (1.97 in): Days with 50 mm or more rain1119861

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 Simo Simoniemi 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).