Hameenkoski Palomaa Threshold Days by Year (FIE00142896)

3 fixed thresholds counted per year at Hameenkoski Palomaa (FIE00142896): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hameenkoski Palomaa Thresholds

Hameenkoski Palomaa: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1974 with 18.
Hameenkoski Palomaa: days with 25 mm (0.98 in) or more of precipitation in 27 years, most in 1981 with 3.
Hameenkoski Palomaa: days with 50 mm (1.97 in) or more of precipitation in 3 years, most in 1988 with 1.
3 fixed thresholds have at least one qualifying day at Hameenkoski Palomaa.

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

38 years with a qualifying day

Days per year at Hameenkoski Palomaa with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 18 in 1974.

Days with 10 mm (0.39 in) or more of precipitation per year at Hameenkoski Palomaa
Year	Days	Decade average
1970	11	11.1
1971	11	11.1
1972	8	11.1
1973	13	11.1
1974	18	11.1
1975	6	11.1
1976	7	11.1
1977	14	11.1
1978	10	11.1
1979	13	11.1
1980	14	13.5
1981	17	13.5
1982	10	13.5
1983	9	13.5
1984	16	13.5
1985	13	13.5
1986	17	13.5
1987	15	13.5
1988	15	13.5
1989	9	13.5
1990	9	11.6
1991	11	11.6
1992	13	11.6
1993	12	11.6
1994	7	11.6
1995	11	11.6
1996	11	11.6
1997	15	11.6
1998	16	11.6
1999	11	11.6
2000	16	13.1
2001	12	13.1
2002	12	13.1
2003	13	13.1
2004	18	13.1
2005	12	13.1
2006	12	13.1
2007	10	13.1

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

First to last qualifying date each year at Hameenkoski Palomaa
Year	First date	Last date
1970	1970-05-27	1970-12-20
1971	1971-07-06	1971-12-21
1972	1972-04-17	1972-08-12
1973	1973-05-16	1973-10-09
1974	1974-03-21	1974-11-17
1975	1975-04-11	1975-09-04
1976	1976-06-02	1976-09-10
1977	1977-04-12	1977-11-12
1978	1978-03-06	1978-09-11
1979	1979-05-03	1979-11-26
1980	1980-05-18	1980-11-18
1981	1981-01-01	1981-10-11
1982	1982-04-11	1982-12-12
1983	1983-01-13	1983-12-30
1984	1984-03-31	1984-10-26
1985	1985-05-01	1985-10-12
1986	1986-05-12	1986-12-05
1987	1987-05-13	1987-11-28
1988	1988-03-28	1988-12-30
1989	1989-04-17	1989-10-13
1990	1990-02-25	1990-11-17
1991	1991-01-10	1991-11-18
1992	1992-04-16	1992-10-16
1993	1993-06-13	1993-10-12
1994	1994-04-02	1994-10-03
1995	1995-01-23	1995-11-17
1996	1996-05-15	1996-11-28
1997	1997-01-08	1997-10-11
1998	1998-03-31	1998-10-30
1999	1999-02-04	1999-12-12
2000	2000-06-07	2000-11-30
2001	2001-06-09	2001-10-31
2002	2002-01-24	2002-11-26
2003	2003-05-01	2003-12-21
2004	2004-03-02	2004-11-15
2005	2005-05-16	2005-11-30
2006	2006-05-26	2006-12-05
2007	2007-02-02	2007-09-18

Every Fixed Threshold

Fixed thresholds at Hameenkoski Palomaa
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	38	18	1974	10
25 mm (0.98 in): Days with 25 mm or more rain	27	3	1981	1
50 mm (1.97 in): Days with 50 mm or more rain	3	1	1988	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1970.

Download the Data

Data for Hameenkoski Palomaa 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).

Hameenkoski Palomaa Threshold Days by Year (FIE00142896)

Key Facts for Hameenkoski Palomaa Thresholds

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

Every Fixed Threshold

Download the Data

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