Built 2026-10-19 (19 October 2026)

Hamina Onkamaa Threshold Days by Year (FIE00143176)

3 fixed thresholds counted per year at Hamina Onkamaa (FIE00143176): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hamina Onkamaa Thresholds

  • Hamina Onkamaa: days with 10 mm (0.39 in) or more of precipitation in 39 years, most in 2004 with 34.
  • Hamina Onkamaa: days with 25 mm (0.98 in) or more of precipitation in 37 years, most in 2007 with 6.
  • Hamina Onkamaa: days with 50 mm (1.97 in) or more of precipitation in 2 years, most in 1988 with 1.
  • 3 fixed thresholds have at least one qualifying day at Hamina Onkamaa.
39 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Hamina Onkamaa Days per year at Hamina Onkamaa with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 2004. 0102030401969: 221970: 241971: 171972: 171973: 231974: 301976: 161977: 251978: 131979: 221980: 281981: 261982: 121983: 241984: 231985: 231986: 221987: 231988: 221989: 161990: 271991: 301992: 121993: 121994: 281995: 211996: 221997: 191998: 301999: 192000: 262001: 212002: 152003: 252004: 342005: 292006: 132007: 272008: 321969197319781982198619901994199820022006
Days per year at Hamina Onkamaa with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 2004.
Days with 10 mm (0.39 in) or more of precipitation per year at Hamina Onkamaa
YearDaysDecade average
19692222
19702420.8
19711720.8
19721720.8
19732320.8
19743020.8
19761620.8
19772520.8
19781320.8
19792220.8
19802821.9
19812621.9
19821221.9
19832421.9
19842321.9
19852321.9
19862221.9
19872321.9
19882221.9
19891621.9
19902722
19913022
19921222
19931222
19942822
19952122
19962222
19971922
19983022
19991922
20002624.7
20012124.7
20021524.7
20032524.7
20043424.7
20052924.7
20061324.7
20072724.7
20083224.7
First to last qualifying date each year at Hamina Onkamaa For each year, a bar from the first to the last day at Hamina Onkamaa meeting 10 mm (0.39 in). 1969: 13 April 1969 to 23 November 19691970: 1 January 1970 to 31 December 19701971: 2 February 1971 to 21 December 19711972: 27 March 1972 to 1 December 19721973: 5 February 1973 to 3 December 19731974: 15 January 1974 to 17 December 19741976: 20 January 1976 to 27 December 19761977: 15 February 1977 to 22 November 19771978: 15 April 1978 to 19 November 19781979: 7 January 1979 to 18 December 19791980: 19 April 1980 to 29 November 19801981: 9 March 1981 to 24 December 19811982: 8 April 1982 to 15 December 19821983: 1 January 1983 to 30 December 19831984: 3 January 1984 to 21 December 19841985: 26 March 1985 to 26 December 19851986: 24 January 1986 to 3 December 19861987: 25 January 1987 to 29 December 19871988: 1 January 1988 to 30 December 19881989: 8 January 1989 to 21 December 19891990: 9 January 1990 to 20 December 19901991: 3 January 1991 to 23 December 19911992: 3 February 1992 to 4 December 19921993: 15 January 1993 to 19 December 19931994: 13 January 1994 to 30 December 19941995: 8 January 1995 to 29 December 19951996: 15 February 1996 to 29 November 19961997: 8 January 1997 to 2 December 19971998: 10 January 1998 to 24 December 19981999: 4 February 1999 to 17 December 19992000: 3 March 2000 to 12 December 20002001: 6 February 2001 to 15 November 20012002: 24 January 2002 to 26 November 20022003: 20 January 2003 to 28 December 20032004: 31 January 2004 to 23 December 20042005: 2 January 2005 to 31 December 20052006: 27 August 2006 to 5 December 20062007: 9 January 2007 to 8 December 20072008: 19 January 2008 to 21 December 200819691974198019851990199520002005JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Hamina Onkamaa meeting 10 mm (0.39 in).
First to last qualifying date each year at Hamina Onkamaa
YearFirst dateLast date
19691969-04-131969-11-23
19701970-01-011970-12-31
19711971-02-021971-12-21
19721972-03-271972-12-01
19731973-02-051973-12-03
19741974-01-151974-12-17
19761976-01-201976-12-27
19771977-02-151977-11-22
19781978-04-151978-11-19
19791979-01-071979-12-18
19801980-04-191980-11-29
19811981-03-091981-12-24
19821982-04-081982-12-15
19831983-01-011983-12-30
19841984-01-031984-12-21
19851985-03-261985-12-26
19861986-01-241986-12-03
19871987-01-251987-12-29
19881988-01-011988-12-30
19891989-01-081989-12-21
19901990-01-091990-12-20
19911991-01-031991-12-23
19921992-02-031992-12-04
19931993-01-151993-12-19
19941994-01-131994-12-30
19951995-01-081995-12-29
19961996-02-151996-11-29
19971997-01-081997-12-02
19981998-01-101998-12-24
19991999-02-041999-12-17
20002000-03-032000-12-12
20012001-02-062001-11-15
20022002-01-242002-11-26
20032003-01-202003-12-28
20042004-01-312004-12-23
20052005-01-022005-12-31
20062006-08-272006-12-05
20072007-01-092007-12-08
20082008-01-192008-12-21

Every Fixed Threshold

Fixed thresholds at Hamina Onkamaa
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3934200432
25 mm (0.98 in): Days with 25 mm or more rain37620072
50 mm (1.97 in): Days with 50 mm or more rain2119881

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.

Download the Data

  • Data for Hamina Onkamaa 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).