Iisalmi Keskusta Threshold Days by Year (FIE00145387)

3 fixed thresholds counted per year at Iisalmi Keskusta (FIE00145387): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Iisalmi Keskusta Thresholds

Iisalmi Keskusta: days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 1992 with 23.
Iisalmi Keskusta: days with 25 mm (0.98 in) or more of precipitation in 22 years, most in 1972 with 4.
Iisalmi Keskusta: days with 50 mm (1.97 in) or more of precipitation in 2 years, most in 1972 with 1.
3 fixed thresholds have at least one qualifying day at Iisalmi Keskusta.

Days with 10 mm (0.39 in) or more of precipitation

37 years with a qualifying day

Days per year at Iisalmi Keskusta with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1992.

Days with 10 mm (0.39 in) or more of precipitation per year at Iisalmi Keskusta
Year	Days	Decade average
1965	10	11.3
1966	15	11.3
1968	12	11.3
1969	8	11.3
1970	14	10.6
1971	6	10.6
1972	15	10.6
1973	6	10.6
1974	15	10.6
1975	8	10.6
1976	14	10.6
1977	11	10.6
1978	7	10.6
1979	10	10.6
1980	13	12.7
1981	9	12.7
1982	8	12.7
1983	17	12.7
1984	9	12.7
1985	14	12.7
1986	17	12.7
1987	14	12.7
1988	14	12.7
1989	12	12.7
1990	11	13.6
1991	17	13.6
1992	23	13.6
1993	15	13.6
1994	14	13.6
1995	9	13.6
1996	13	13.6
1997	11	13.6
1998	16	13.6
1999	7	13.6
2000	13	9.7
2002	6	9.7
2003	10	9.7

For each year, a bar from the first to the last day at Iisalmi Keskusta meeting 10 mm (0.39 in).

First to last qualifying date each year at Iisalmi Keskusta
Year	First date	Last date
1965	1965-01-13	1965-10-31
1966	1966-01-30	1966-10-08
1968	1968-03-17	1968-11-03
1969	1969-04-11	1969-11-12
1970	1970-04-02	1970-10-12
1971	1971-08-05	1971-10-20
1972	1972-05-21	1972-11-10
1973	1973-05-06	1973-10-09
1974	1974-05-30	1974-11-15
1975	1975-05-31	1975-09-01
1976	1976-05-05	1976-09-15
1977	1977-04-16	1977-10-17
1978	1978-03-13	1978-09-17
1979	1979-02-25	1979-10-11
1980	1980-05-26	1980-11-21
1981	1981-06-04	1981-11-18
1982	1982-04-07	1982-11-28
1983	1983-01-06	1983-12-27
1984	1984-03-30	1984-10-30
1985	1985-04-02	1985-12-21
1986	1986-05-25	1986-11-11
1987	1987-01-25	1987-12-07
1988	1988-01-01	1988-09-29
1989	1989-03-11	1989-10-21
1990	1990-02-20	1990-08-18
1991	1991-03-20	1991-12-22
1992	1992-04-02	1992-11-07
1993	1993-04-17	1993-12-19
1994	1994-01-07	1994-10-03
1995	1995-05-22	1995-10-18
1996	1996-05-03	1996-12-12
1997	1997-04-03	1997-11-13
1998	1998-01-10	1998-10-18
1999	1999-05-30	1999-12-13
2000	2000-03-03	2000-11-05
2002	2002-01-25	2002-10-03
2003	2003-06-09	2003-11-24

Every Fixed Threshold

Fixed thresholds at Iisalmi Keskusta
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	37	23	1992	10
25 mm (0.98 in): Days with 25 mm or more rain	22	4	1972	3
50 mm (1.97 in): Days with 50 mm or more rain	2	1	1972	1

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

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Data for Iisalmi Keskusta 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Iisalmi Keskusta Threshold Days by Year (FIE00145387)

Key Facts for Iisalmi Keskusta Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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