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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

Somero Joensuu Weather Records (FIE00142661)

Record envelope, standing records and threshold days for Somero Joensuu (FIE00142661), Finland, with 40 years of record.

Key Facts for Somero Joensuu

  • Somero Joensuu (FIE00142661) is a weather station in Finland at 60.63 latitude and 23.52 longitude, 87 m (285 ft) above sea level.
  • The station reports from 1965 to 2004, 40 years of record.
  • 0 records set at Somero Joensuu still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Somero Joensuu set a daily record precipitation of 14.4 mm (0.6 in) on 14 July 2003.

About the Station

  • Location: Finland, 60.63 latitude, 23.52 longitude.
  • Elevation: 87 m (285 ft).
  • Period of record: 1965 to 2004, 40 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Somero Joensuu, with 2026 drawn through them The band shows the record high and record low for each calendar day at Somero Joensuu. 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 Somero Joensuu. 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 Somero Joensuu, 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 Somero Joensuu by the year they were set 0 records at Somero Joensuu still stand. 00000000000
0 records at Somero Joensuu still stand.
Standing records at Somero Joensuu by the year they were set
Year setStanding records

Wettest Day of Each Month

Aug: 64.6 mm (2.5 in)
Record daily precipitation for each month at Somero Joensuu The wettest day on record for each calendar month at Somero Joensuu. The most was 64.6 mm (2.5 in) on 4 August 1978. 020406080 Jan: 22.0 mm (0.9 in), 16 January 1992 Jan Feb: 20.0 mm (0.8 in), 21 February 2002 Feb Mar: 22.0 mm (0.9 in), 8 March 1994 Mar Apr: 21.6 mm (0.9 in), 17 April 1972 Apr May: 29.3 mm (1.2 in), 4 May 1988 May Jun: 41.1 mm (1.6 in), 30 June 1981 Jun Jul: 45.0 mm (1.8 in), 17 July 1981 Jul Aug: 64.6 mm (2.5 in), 4 August 1978 Aug Sep: 31.0 mm (1.2 in), 24 September 1988 Sep Oct: 35.0 mm (1.4 in), 9 October 1988 Oct Nov: 27.1 mm (1.1 in), 18 November 1980 Nov Dec: 19.3 mm (0.8 in), 30 December 1983 Dec
The wettest day on record for each calendar month at Somero Joensuu. The most was 64.6 mm (2.5 in) on 4 August 1978.
Record daily precipitation for each month at Somero Joensuu
MonthRecord daily precipitation (mm)Date
Jan22.0 mm (0.9 in)16 January 1992
Feb20.0 mm (0.8 in)21 February 2002
Mar22.0 mm (0.9 in)8 March 1994
Apr21.6 mm (0.9 in)17 April 1972
May29.3 mm (1.2 in)4 May 1988
Jun41.1 mm (1.6 in)30 June 1981
Jul45.0 mm (1.8 in)17 July 1981
Aug64.6 mm (2.5 in)4 August 1978
Sep31.0 mm (1.2 in)24 September 1988
Oct35.0 mm (1.4 in)9 October 1988
Nov27.1 mm (1.1 in)18 November 1980
Dec19.3 mm (0.8 in)30 December 1983

Latest Records

20
Latest records at Somero Joensuu
DateStationRecordValueBeat old record byOld record stoodSignificance
14 July 2003Somero Joensuu, FIdaily rain14.4 mm (0.6 in)1.3 mm (0.05 in)25 years11 of 100 (Routine)
18 May 2003Somero Joensuu, FIdaily rain19.5 mm (0.8 in)10.7 mm (0.4 in)8 years20 of 100 (Routine)
17 May 2003Somero Joensuu, FIdaily rain18.2 mm (0.7 in)13.0 mm (0.5 in)20 years20 of 100 (Routine)
19 November 2002Somero Joensuu, FIdaily rain14.7 mm (0.6 in)3.8 mm (0.15 in)16 years15 of 100 (Routine)
19 July 2002Somero Joensuu, FIdaily rain30.6 mm (1.2 in)0.2 mm (0.01 in)21 years9 of 100 (Routine)
13 June 2002Somero Joensuu, FIdaily rain17.5 mm (0.7 in)6.5 mm (0.26 in)20 years20 of 100 (Routine)
9 March 2002Somero Joensuu, FIdaily rain8.3 mm (0.33 in)0.8 mm (0.03 in)12 years8 of 100 (Routine)
6 March 2002Somero Joensuu, FIdaily rain10.3 mm (0.4 in)3.3 mm (0.13 in)32 years20 of 100 (Routine)
21 February 2002Somero Joensuu, FImonthly rain20.0 mm (0.8 in)2.7 mm (0.11 in)13 years20 of 100 (Routine)
28 January 2002Somero Joensuu, FIdaily rain9.0 mm (0.35 in)3.7 mm (0.15 in)34 years20 of 100 (Routine)
25 January 2002Somero Joensuu, FIdaily rain14.7 mm (0.6 in)8.2 mm (0.32 in)31 years20 of 100 (Routine)
24 January 2002Somero Joensuu, FIdaily rain18.0 mm (0.7 in)10.8 mm (0.4 in)3 years20 of 100 (Routine)
31 October 2001Somero Joensuu, FIdaily rain17.4 mm (0.7 in)5.7 mm (0.22 in)11 years18 of 100 (Routine)
10 October 2001Somero Joensuu, FIdaily rain15.1 mm (0.6 in)1.5 mm (0.06 in)34 years16 of 100 (Routine)
13 September 2001Somero Joensuu, FIdaily rain16.3 mm (0.6 in)2.4 mm (0.09 in)7 years10 of 100 (Routine)
8 September 2001Somero Joensuu, FIdaily rain30.8 mm (1.2 in)13.8 mm (0.5 in)14 years36 of 100 (Notable)
27 August 2001Somero Joensuu, FIdaily rain26.4 mm (1.0 in)5.7 mm (0.22 in)24 years17 of 100 (Routine)
21 July 2001Somero Joensuu, FIdaily rain17.6 mm (0.7 in)6.2 mm (0.24 in)24 years18 of 100 (Routine)
19 June 2001Somero Joensuu, FIdaily rain9.9 mm (0.39 in)4.3 mm (0.17 in)10 years13 of 100 (Routine)
22 November 2000Somero Joensuu, FIdaily rain20.1 mm (0.8 in)6.1 mm (0.24 in)18 years20 of 100 (Routine)

Extremes by Year

1965 to 2004
Yearly extremes at Somero Joensuu: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)64.6 mm (2.5 in)197828.2 mm (1.1 in)40
Wettest five days (Rx5day)103.8 mm (4.1 in)197852.1 mm (2.1 in)40
Longest dry spell (CDD)43 days200321 days40

Wettest day (Rx1day)

Wettest day (Rx1day) at Somero Joensuu by year The wettest day of the year at Somero Joensuu, 1965 to 2004. The record is 64.6 mm (2.5 in) in 1978, marked on the chart; the median year is 28.2 mm (1.1 in). 0204060801970198019902000Record: 64.6 mm (2.5 in) in 1978
The wettest day of the year at Somero Joensuu, 1965 to 2004. The record is 64.6 mm (2.5 in) in 1978, marked on the chart; the median year is 28.2 mm (1.1 in).
Wettest day (Rx1day) at Somero Joensuu by year
YearWettest day (Rx1day)
196515.7 mm (0.6 in)
196621.3 mm (0.8 in)
196738.2 mm (1.5 in)
196827.2 mm (1.1 in)
196919.2 mm (0.8 in)
197035.1 mm (1.4 in)
197119.9 mm (0.8 in)
197225.4 mm (1.0 in)
197324.9 mm (1.0 in)
197427.1 mm (1.1 in)
197529.5 mm (1.2 in)
197620.2 mm (0.8 in)
197720.7 mm (0.8 in)
197864.6 mm (2.5 in)
197929.2 mm (1.1 in)
198044.3 mm (1.7 in)
198145.0 mm (1.8 in)
198230.3 mm (1.2 in)
198323.5 mm (0.9 in)
198436.5 mm (1.4 in)
198555.5 mm (2.2 in)
198627.0 mm (1.1 in)
198736.7 mm (1.4 in)
198842.4 mm (1.7 in)
198918.2 mm (0.7 in)
199020.1 mm (0.8 in)
199121.0 mm (0.8 in)
199222.0 mm (0.9 in)
199343.6 mm (1.7 in)
199422.0 mm (0.9 in)
199530.9 mm (1.2 in)
199634.5 mm (1.4 in)
199723.0 mm (0.9 in)
199833.0 mm (1.3 in)
199927.2 mm (1.1 in)
200030.3 mm (1.2 in)
200130.8 mm (1.2 in)
200230.6 mm (1.2 in)
200330.0 mm (1.2 in)
20044.8 mm (0.19 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Somero Joensuu by year The wettest five days of the year at Somero Joensuu, 1965 to 2004. The record is 103.8 mm (4.1 in) in 1978, marked on the chart; the median year is 52.1 mm (2.1 in). 02550751001251970198019902000Record: 103.8 mm (4.1 in) in 1978
The wettest five days of the year at Somero Joensuu, 1965 to 2004. The record is 103.8 mm (4.1 in) in 1978, marked on the chart; the median year is 52.1 mm (2.1 in).
Wettest five days (Rx5day) at Somero Joensuu by year
YearWettest five days (Rx5day)
196546.1 mm (1.8 in)
196637.4 mm (1.5 in)
196773.2 mm (2.9 in)
196851.8 mm (2.0 in)
196933.2 mm (1.3 in)
197072.6 mm (2.9 in)
197136.4 mm (1.4 in)
197253.8 mm (2.1 in)
197351.4 mm (2.0 in)
197441.5 mm (1.6 in)
197538.1 mm (1.5 in)
197632.2 mm (1.3 in)
197746.0 mm (1.8 in)
1978103.8 mm (4.1 in)
197966.4 mm (2.6 in)
198069.7 mm (2.7 in)
198163.0 mm (2.5 in)
198252.1 mm (2.1 in)
198332.9 mm (1.3 in)
198454.1 mm (2.1 in)
198570.1 mm (2.8 in)
198647.6 mm (1.9 in)
198763.2 mm (2.5 in)
198881.7 mm (3.2 in)
198937.7 mm (1.5 in)
199037.1 mm (1.5 in)
199141.7 mm (1.6 in)
199255.8 mm (2.2 in)
199391.0 mm (3.6 in)
199464.4 mm (2.5 in)
199552.1 mm (2.1 in)
199672.7 mm (2.9 in)
199764.5 mm (2.5 in)
199851.7 mm (2.0 in)
199958.3 mm (2.3 in)
200059.8 mm (2.4 in)
200169.4 mm (2.7 in)
200245.2 mm (1.8 in)
200350.8 mm (2.0 in)
20046.5 mm (0.26 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Somero Joensuu by year The longest dry spell of the year at Somero Joensuu, 1965 to 2004. The record is 43 days in 2003, marked on the chart; the median year is 21 days. 010203040501970198019902000Record: 43 days in 2003
The longest dry spell of the year at Somero Joensuu, 1965 to 2004. The record is 43 days in 2003, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at Somero Joensuu by year
YearLongest dry spell (CDD)
196522 days
196627 days
196716 days
196819 days
196934 days
197021 days
197130 days
197241 days
197316 days
197419 days
197515 days
197628 days
197714 days
197822 days
197919 days
198027 days
198119 days
198224 days
198317 days
198418 days
198514 days
198618 days
198729 days
198817 days
198923 days
199020 days
199116 days
199229 days
199326 days
199421 days
199518 days
199625 days
199716 days
199814 days
199922 days
200040 days
200126 days
200232 days
200343 days
20044 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

37 years, 1965 to 2002

A day with at least 27.7 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 70.4 mm (2.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Somero Joensuu: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years27.7 mm (1.1 in)
5 years37.0 mm (1.5 in)
10 years43.9 mm (1.7 in)
25 years53.7 mm (2.1 in)
50 years61.7 mm (2.4 in)Longer than the 37 years of record
100 years70.4 mm (2.8 in)Longer than the 37 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, 37 years of values from 1965 to 2002.

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: 64.6 mm (2.5 in) in 1978; 55.5 mm (2.2 in) in 1985; 45.0 mm (1.8 in) in 1981.

Download the Data

  • Data for Somero Joensuu standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Somero Joensuu 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

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