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Built 2026-10-19 (19 October 2026)

Hamina Poitsila Threshold Days by Year

3 fixed thresholds counted per year at Hamina Poitsila (FIE00143166): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hamina Poitsila Thresholds

  • Hamina Poitsila: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1981 with 29.
  • Hamina Poitsila: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1977 with 3.
  • Hamina Poitsila: days with 50 mm (1.97 in) or more of precipitation in 4 years, most in 1977 with 1.
  • 3 fixed thresholds have at least one qualifying day at Hamina Poitsila.
38 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Hamina Poitsila Days per year at Hamina Poitsila with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 29 in 1981. 01020301967: 161968: 111969: 241970: 231971: 141972: 151973: 121974: 241975: 91976: 81977: 181978: 241979: 211980: 261981: 291982: 161983: 191984: 221985: 251986: 161987: 181988: 151989: 131990: 171991: 201992: 91993: 151994: 201995: 141996: 171997: 121998: 161999: 132000: 202001: 162002: 122003: 202004: 201967197119751979198319871991199519992003
Days per year at Hamina Poitsila with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 29 in 1981.
Days with 10 mm (0.39 in) or more of precipitation per year at Hamina Poitsila
YearDaysDecade average
19671617
19681117
19692417
19702316.8
19711416.8
19721516.8
19731216.8
19742416.8
1975916.8
1976816.8
19771816.8
19782416.8
19792116.8
19802619.9
19812919.9
19821619.9
19831919.9
19842219.9
19852519.9
19861619.9
19871819.9
19881519.9
19891319.9
19901715.3
19912015.3
1992915.3
19931515.3
19942015.3
19951415.3
19961715.3
19971215.3
19981615.3
19991315.3
20002017.6
20011617.6
20021217.6
20032017.6
20042017.6
First to last qualifying date each year at Hamina Poitsila For each year, a bar from the first to the last day at Hamina Poitsila meeting 10 mm (0.39 in). 1967: 20 February 1967 to 5 December 19671968: 24 April 1968 to 29 October 19681969: 31 January 1969 to 7 December 19691970: 6 January 1970 to 31 December 19701971: 1 February 1971 to 20 December 19711972: 27 March 1972 to 10 November 19721973: 5 February 1973 to 19 November 19731974: 21 March 1974 to 5 December 19741975: 25 April 1975 to 3 December 19751976: 20 January 1976 to 2 December 19761977: 20 February 1977 to 22 November 19771978: 6 March 1978 to 24 October 19781979: 10 January 1979 to 18 December 19791980: 19 April 1980 to 15 December 19801981: 9 March 1981 to 31 December 19811982: 30 January 1982 to 20 December 19821983: 1 January 1983 to 30 December 19831984: 3 January 1984 to 21 December 19841985: 26 March 1985 to 26 December 19851986: 21 January 1986 to 5 December 19861987: 25 January 1987 to 15 December 19871988: 1 January 1988 to 30 December 19881989: 31 May 1989 to 26 November 19891990: 24 January 1990 to 20 December 19901991: 10 January 1991 to 21 December 19911992: 28 July 1992 to 6 November 19921993: 19 February 1993 to 19 December 19931994: 13 January 1994 to 30 December 19941995: 8 January 1995 to 17 November 19951996: 15 February 1996 to 28 November 19961997: 11 February 1997 to 13 November 19971998: 10 January 1998 to 24 December 19981999: 4 February 1999 to 12 December 19992000: 6 March 2000 to 13 December 20002001: 6 February 2001 to 31 October 20012002: 24 January 2002 to 26 November 20022003: 11 January 2003 to 27 December 20032004: 31 January 2004 to 19 December 200419671972197719821987199219972002JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Hamina Poitsila meeting 10 mm (0.39 in).
First to last qualifying date each year at Hamina Poitsila
YearFirst dateLast date
19671967-02-201967-12-05
19681968-04-241968-10-29
19691969-01-311969-12-07
19701970-01-061970-12-31
19711971-02-011971-12-20
19721972-03-271972-11-10
19731973-02-051973-11-19
19741974-03-211974-12-05
19751975-04-251975-12-03
19761976-01-201976-12-02
19771977-02-201977-11-22
19781978-03-061978-10-24
19791979-01-101979-12-18
19801980-04-191980-12-15
19811981-03-091981-12-31
19821982-01-301982-12-20
19831983-01-011983-12-30
19841984-01-031984-12-21
19851985-03-261985-12-26
19861986-01-211986-12-05
19871987-01-251987-12-15
19881988-01-011988-12-30
19891989-05-311989-11-26
19901990-01-241990-12-20
19911991-01-101991-12-21
19921992-07-281992-11-06
19931993-02-191993-12-19
19941994-01-131994-12-30
19951995-01-081995-11-17
19961996-02-151996-11-28
19971997-02-111997-11-13
19981998-01-101998-12-24
19991999-02-041999-12-12
20002000-03-062000-12-13
20012001-02-062001-10-31
20022002-01-242002-11-26
20032003-01-112003-12-27
20042004-01-312004-12-19

Every Fixed Threshold

Fixed thresholds at Hamina Poitsila
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3829198120
25 mm (0.98 in): Days with 25 mm or more rain30319773
50 mm (1.97 in): Days with 50 mm or more rain4119771

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1967.

Download the Data

  • Data for Hamina Poitsila 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).