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Data as of 2025-12-31
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Built 2026-10-15 (15 October 2026)

Hamina Poitsila Weather Records (FIE00143166)

Record envelope, standing records and threshold days for Hamina Poitsila (FIE00143166), Finland, with 40 years of record.

Key Facts for Hamina Poitsila

  • Hamina Poitsila (FIE00143166) is a weather station in Finland at 60.55 latitude and 27.15 longitude, 12 m (39 ft) above sea level.
  • The station reports from 1966 to 2005, 40 years of record.
  • 0 records set at Hamina Poitsila still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Hamina Poitsila set a daily record precipitation of 19.5 mm (0.8 in) on 17 May 2005.

About the Station

  • Location: Finland, 60.55 latitude, 27.15 longitude.
  • Elevation: 12 m (39 ft).
  • Period of record: 1966 to 2005, 40 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Hamina Poitsila, with 2026 drawn through them The band shows the record high and record low for each calendar day at Hamina Poitsila. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Hamina Poitsila. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Hamina Poitsila, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Which Years Hold Standing Records

0 standing records
Standing records at Hamina Poitsila by the year they were set 0 records at Hamina Poitsila still stand. 00000000000
0 records at Hamina Poitsila still stand.
Standing records at Hamina Poitsila by the year they were set
Year setStanding records

Wettest Day of Each Month

Aug: 95.0 mm (3.7 in)
Record daily precipitation for each month at Hamina Poitsila The wettest day on record for each calendar month at Hamina Poitsila. The most was 95.0 mm (3.7 in) on 9 August 1991. 0255075100 Jan: 27.2 mm (1.1 in), 30 January 1982 Jan Feb: 31.5 mm (1.2 in), 16 February 1999 Feb Mar: 19.4 mm (0.8 in), 21 March 1974 Mar Apr: 18.9 mm (0.7 in), 17 April 1972 Apr May: 26.5 mm (1.0 in), 14 May 1995 May Jun: 54.1 mm (2.1 in), 15 June 1997 Jun Jul: 62.8 mm (2.5 in), 30 July 1977 Jul Aug: 95.0 mm (3.7 in), 9 August 1991 Aug Sep: 46.8 mm (1.8 in), 12 September 1988 Sep Oct: 38.0 mm (1.5 in), 29 October 1996 Oct Nov: 27.3 mm (1.1 in), 13 November 1997 Nov Dec: 29.0 mm (1.1 in), 19 December 1993 Dec
The wettest day on record for each calendar month at Hamina Poitsila. The most was 95.0 mm (3.7 in) on 9 August 1991.
Record daily precipitation for each month at Hamina Poitsila
MonthRecord daily precipitation (mm)Date
Jan27.2 mm (1.1 in)30 January 1982
Feb31.5 mm (1.2 in)16 February 1999
Mar19.4 mm (0.8 in)21 March 1974
Apr18.9 mm (0.7 in)17 April 1972
May26.5 mm (1.0 in)14 May 1995
Jun54.1 mm (2.1 in)15 June 1997
Jul62.8 mm (2.5 in)30 July 1977
Aug95.0 mm (3.7 in)9 August 1991
Sep46.8 mm (1.8 in)12 September 1988
Oct38.0 mm (1.5 in)29 October 1996
Nov27.3 mm (1.1 in)13 November 1997
Dec29.0 mm (1.1 in)19 December 1993

Latest Records

20
Latest records at Hamina Poitsila
DateStationRecordValueBeat old record byOld record stoodSignificance
17 May 2005Hamina Poitsila, FIdaily rain19.5 mm (0.8 in)10.1 mm (0.4 in)36 years20 of 100 (Routine)
10 May 2005Hamina Poitsila, FIdaily rain17.5 mm (0.7 in)1.8 mm (0.07 in)20 years14 of 100 (Routine)
8 May 2005Hamina Poitsila, FIdaily rain13.3 mm (0.5 in)9.2 mm (0.36 in)28 years20 of 100 (Routine)
11 April 2005Hamina Poitsila, FIdaily rain6.6 mm (0.26 in)0.8 mm (0.03 in)30 years15 of 100 (Routine)
7 January 2005Hamina Poitsila, FIdaily rain11.0 mm (0.4 in)3.3 mm (0.13 in)21 years20 of 100 (Routine)
21 September 2004Hamina Poitsila, FIdaily rain15.2 mm (0.6 in)1.1 mm (0.04 in)23 years10 of 100 (Routine)
17 August 2004Hamina Poitsila, FIdaily rain25.5 mm (1.0 in)8.2 mm (0.32 in)18 years17 of 100 (Routine)
30 June 2004Hamina Poitsila, FIdaily rain15.6 mm (0.6 in)11.4 mm (0.4 in)15 years20 of 100 (Routine)
24 June 2004Hamina Poitsila, FIdaily rain24.6 mm (1.0 in)7.3 mm (0.29 in)24 years20 of 100 (Routine)
21 June 2004Hamina Poitsila, FIdaily rain11.0 mm (0.4 in)6.1 mm (0.24 in)11 years16 of 100 (Routine)
30 May 2004Hamina Poitsila, FIdaily rain8.2 mm (0.32 in)3.8 mm (0.15 in)19 years17 of 100 (Routine)
19 May 2004Hamina Poitsila, FIdaily rain5.0 mm (0.20 in)1.6 mm (0.06 in)27 years14 of 100 (Routine)
18 May 2004Hamina Poitsila, FIdaily rain10.5 mm (0.4 in)1.0 mm (0.04 in)22 years11 of 100 (Routine)
15 March 2004Hamina Poitsila, FIdaily rain5.2 mm (0.20 in)1.3 mm (0.05 in)34 years16 of 100 (Routine)
2 March 2004Hamina Poitsila, FIdaily rain9.6 mm (0.38 in)0.7 mm (0.03 in)34 years15 of 100 (Routine)
3 February 2004Hamina Poitsila, FIdaily rain11.4 mm (0.4 in)2.7 mm (0.11 in)16 years15 of 100 (Routine)
27 November 2003Hamina Poitsila, FIdaily rain7.4 mm (0.29 in)0.4 mm (0.02 in)24 years10 of 100 (Routine)
7 October 2003Hamina Poitsila, FIdaily rain25.7 mm (1.0 in)8.0 mm (0.31 in)21 years24 of 100 (Routine)
30 September 2003Hamina Poitsila, FIdaily rain23.7 mm (0.9 in)7.0 mm (0.28 in)29 years20 of 100 (Routine)
21 August 2003Hamina Poitsila, FIdaily rain22.8 mm (0.9 in)6.3 mm (0.25 in)14 years14 of 100 (Routine)

Extremes by Year

1966 to 2005
Yearly extremes at Hamina Poitsila: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)95.0 mm (3.7 in)199130.5 mm (1.2 in)40
Wettest five days (Rx5day)142.2 mm (5.6 in)199155.8 mm (2.2 in)40
Longest dry spell (CDD)38 days197221 days40

Wettest day (Rx1day)

Wettest day (Rx1day) at Hamina Poitsila by year The wettest day of the year at Hamina Poitsila, 1966 to 2005. The record is 95.0 mm (3.7 in) in 1991, marked on the chart; the median year is 30.5 mm (1.2 in). 02550751001970198019902000Record: 95.0 mm (3.7 in) in 1991
The wettest day of the year at Hamina Poitsila, 1966 to 2005. The record is 95.0 mm (3.7 in) in 1991, marked on the chart; the median year is 30.5 mm (1.2 in).
Wettest day (Rx1day) at Hamina Poitsila by year
YearWettest day (Rx1day)
196667.2 mm (2.6 in)
196730.5 mm (1.2 in)
196829.2 mm (1.1 in)
196923.2 mm (0.9 in)
197024.2 mm (1.0 in)
197114.8 mm (0.6 in)
197239.4 mm (1.6 in)
197331.4 mm (1.2 in)
197419.6 mm (0.8 in)
197541.1 mm (1.6 in)
197622.2 mm (0.9 in)
197762.8 mm (2.5 in)
197825.3 mm (1.0 in)
197936.0 mm (1.4 in)
198044.2 mm (1.7 in)
198135.7 mm (1.4 in)
198227.6 mm (1.1 in)
198341.0 mm (1.6 in)
198426.9 mm (1.1 in)
198518.9 mm (0.7 in)
198635.6 mm (1.4 in)
198726.2 mm (1.0 in)
198846.8 mm (1.8 in)
198921.4 mm (0.8 in)
199030.5 mm (1.2 in)
199195.0 mm (3.7 in)
199228.1 mm (1.1 in)
199329.0 mm (1.1 in)
199458.1 mm (2.3 in)
199526.5 mm (1.0 in)
199638.0 mm (1.5 in)
199754.1 mm (2.1 in)
199829.2 mm (1.1 in)
199931.5 mm (1.2 in)
200037.6 mm (1.5 in)
200143.9 mm (1.7 in)
200221.2 mm (0.8 in)
200325.7 mm (1.0 in)
200442.2 mm (1.7 in)
200519.5 mm (0.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Hamina Poitsila by year The wettest five days of the year at Hamina Poitsila, 1966 to 2005. The record is 142.2 mm (5.6 in) in 1991, marked on the chart; the median year is 55.8 mm (2.2 in). 0501001501970198019902000Record: 142.2 mm (5.6 in) in 1991
The wettest five days of the year at Hamina Poitsila, 1966 to 2005. The record is 142.2 mm (5.6 in) in 1991, marked on the chart; the median year is 55.8 mm (2.2 in).
Wettest five days (Rx5day) at Hamina Poitsila by year
YearWettest five days (Rx5day)
196696.8 mm (3.8 in)
196759.4 mm (2.3 in)
196849.1 mm (1.9 in)
196946.5 mm (1.8 in)
197054.1 mm (2.1 in)
197135.1 mm (1.4 in)
197249.7 mm (2.0 in)
197352.9 mm (2.1 in)
197450.8 mm (2.0 in)
197561.6 mm (2.4 in)
197636.0 mm (1.4 in)
197766.7 mm (2.6 in)
197851.9 mm (2.0 in)
197968.0 mm (2.7 in)
198069.9 mm (2.8 in)
198150.8 mm (2.0 in)
198276.6 mm (3.0 in)
198369.7 mm (2.7 in)
198457.5 mm (2.3 in)
198554.8 mm (2.2 in)
198650.4 mm (2.0 in)
198766.5 mm (2.6 in)
198865.4 mm (2.6 in)
198949.2 mm (1.9 in)
199060.2 mm (2.4 in)
1991142.2 mm (5.6 in)
199250.2 mm (2.0 in)
199358.7 mm (2.3 in)
199468.9 mm (2.7 in)
199540.8 mm (1.6 in)
199667.2 mm (2.6 in)
199755.8 mm (2.2 in)
199855.7 mm (2.2 in)
199946.3 mm (1.8 in)
200047.9 mm (1.9 in)
200177.0 mm (3.0 in)
200243.3 mm (1.7 in)
200369.8 mm (2.7 in)
200463.4 mm (2.5 in)
200534.1 mm (1.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Hamina Poitsila by year The longest dry spell of the year at Hamina Poitsila, 1966 to 2005. The record is 38 days in 1972, marked on the chart; the median year is 21 days. 102030401970198019902000Record: 38 days in 1972
The longest dry spell of the year at Hamina Poitsila, 1966 to 2005. The record is 38 days in 1972, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at Hamina Poitsila by year
YearLongest dry spell (CDD)
196620 days
196713 days
196823 days
196928 days
197024 days
197118 days
197238 days
197319 days
197420 days
197519 days
197624 days
197712 days
197828 days
197919 days
198023 days
198119 days
198216 days
198328 days
198420 days
198513 days
198620 days
198725 days
198813 days
198916 days
199027 days
199120 days
199232 days
199335 days
199418 days
199522 days
199621 days
199717 days
199815 days
199925 days
200025 days
200122 days
200224 days
200323 days
200413 days
200530 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

38 years, 1967 to 2004

A day with at least 30.9 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 91.1 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Hamina Poitsila: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years30.9 mm (1.2 in)
5 years42.7 mm (1.7 in)
10 years52.0 mm (2.0 in)
25 years65.8 mm (2.6 in)
50 years77.7 mm (3.1 in)Longer than the 38 years of record
100 years91.1 mm (3.6 in)Longer than the 38 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 38 years of values from 1967 to 2004.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 95.0 mm (3.7 in) in 1991; 62.8 mm (2.5 in) in 1977; 58.1 mm (2.3 in) in 1994.

Download the Data

  • Data for Hamina Poitsila standing records by year: CSV or JSON. Field meanings are on the data page.
  • 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).