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Data as of 2025-12-31
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Built 2026-10-16 (16 October 2026)

Porvoo Norrveckoski Weather Records (FIE00142286)

Record envelope, standing records and threshold days for Porvoo Norrveckoski (FIE00142286), Finland, with 39 years of record.

Key Facts for Porvoo Norrveckoski

  • Porvoo Norrveckoski (FIE00142286) is a weather station in Finland at 60.39 latitude and 25.43 longitude, 24 m (79 ft) above sea level.
  • The station reports from 1968 to 2006, 39 years of record.
  • 0 records set at Porvoo Norrveckoski still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Porvoo Norrveckoski set a daily record precipitation of 14.7 mm (0.6 in) on 26 October 2006.

About the Station

  • Location: Finland, 60.39 latitude, 25.43 longitude.
  • Elevation: 24 m (79 ft).
  • Period of record: 1968 to 2006, 39 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

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

Wettest Day of Each Month

Aug: 78.8 mm (3.1 in)
Record daily precipitation for each month at Porvoo Norrveckoski The wettest day on record for each calendar month at Porvoo Norrveckoski. The most was 78.8 mm (3.1 in) on 18 August 1991. 020406080 Jan: 28.6 mm (1.1 in), 31 January 2004 Jan Feb: 23.7 mm (0.9 in), 13 February 1971 Feb Mar: 19.2 mm (0.8 in), 11 March 1989 Mar Apr: 19.4 mm (0.8 in), 16 April 1999 Apr May: 27.4 mm (1.1 in), 10 May 2004 May Jun: 45.4 mm (1.8 in), 14 June 2001 Jun Jul: 70.6 mm (2.8 in), 24 July 1993 Jul Aug: 78.8 mm (3.1 in), 18 August 1991 Aug Sep: 35.4 mm (1.4 in), 12 September 1988 Sep Oct: 44.6 mm (1.8 in), 9 October 1988 Oct Nov: 29.0 mm (1.1 in), 27 November 1996 Nov Dec: 34.1 mm (1.3 in), 12 December 1999 Dec
The wettest day on record for each calendar month at Porvoo Norrveckoski. The most was 78.8 mm (3.1 in) on 18 August 1991.
Record daily precipitation for each month at Porvoo Norrveckoski
MonthRecord daily precipitation (mm)Date
Jan28.6 mm (1.1 in)31 January 2004
Feb23.7 mm (0.9 in)13 February 1971
Mar19.2 mm (0.8 in)11 March 1989
Apr19.4 mm (0.8 in)16 April 1999
May27.4 mm (1.1 in)10 May 2004
Jun45.4 mm (1.8 in)14 June 2001
Jul70.6 mm (2.8 in)24 July 1993
Aug78.8 mm (3.1 in)18 August 1991
Sep35.4 mm (1.4 in)12 September 1988
Oct44.6 mm (1.8 in)9 October 1988
Nov29.0 mm (1.1 in)27 November 1996
Dec34.1 mm (1.3 in)12 December 1999

Latest Records

20
Latest records at Porvoo Norrveckoski
DateStationRecordValueBeat old record byOld record stoodSignificance
26 October 2006Porvoo Norrveckoski, FIdaily rain14.7 mm (0.6 in)0.2 mm (0.01 in)4 years4 of 100 (Routine)
3 September 2006Porvoo Norrveckoski, FIdaily rain21.0 mm (0.8 in)4.5 mm (0.18 in)12 years13 of 100 (Routine)
28 August 2006Porvoo Norrveckoski, FIdaily rain43.0 mm (1.7 in)5.6 mm (0.22 in)0 years9 of 100 (Routine)
22 June 2006Porvoo Norrveckoski, FIdaily rain19.8 mm (0.8 in)1.1 mm (0.04 in)12 years7 of 100 (Routine)
3 June 2006Porvoo Norrveckoski, FIdaily rain12.7 mm (0.5 in)7.1 mm (0.28 in)23 years20 of 100 (Routine)
24 May 2006Porvoo Norrveckoski, FIdaily rain5.2 mm (0.20 in)1.9 mm (0.07 in)24 years13 of 100 (Routine)
29 March 2006Porvoo Norrveckoski, FIdaily rain8.4 mm (0.33 in)1.5 mm (0.06 in)12 years10 of 100 (Routine)
14 November 2005Porvoo Norrveckoski, FIdaily rain10.5 mm (0.4 in)0.1 mm (0.00 in)4 years4 of 100 (Routine)
22 October 2005Porvoo Norrveckoski, FIdaily rain32.3 mm (1.3 in)13.0 mm (0.5 in)0 years23 of 100 (Routine)
28 August 2005Porvoo Norrveckoski, FIdaily rain37.4 mm (1.5 in)8.7 mm (0.34 in)11 years16 of 100 (Routine)
25 August 2005Porvoo Norrveckoski, FIdaily rain18.6 mm (0.7 in)7.6 mm (0.30 in)16 years16 of 100 (Routine)
10 August 2005Porvoo Norrveckoski, FIdaily rain26.0 mm (1.0 in)2.8 mm (0.11 in)23 years12 of 100 (Routine)
28 July 2005Porvoo Norrveckoski, FIdaily rain38.6 mm (1.5 in)27.6 mm (1.1 in)0 years38 of 100 (Notable)
26 July 2005Porvoo Norrveckoski, FIdaily rain27.7 mm (1.1 in)14.5 mm (0.6 in)32 years30 of 100 (Routine)
12 June 2005Porvoo Norrveckoski, FIdaily rain34.0 mm (1.3 in)16.5 mm (0.6 in)0 years29 of 100 (Routine)
4 June 2005Porvoo Norrveckoski, FIdaily rain19.8 mm (0.8 in)10.0 mm (0.4 in)28 years20 of 100 (Routine)
1 June 2005Porvoo Norrveckoski, FIdaily rain3.5 mm (0.14 in)0.9 mm (0.04 in)11 years7 of 100 (Routine)
31 May 2005Porvoo Norrveckoski, FIdaily rain22.9 mm (0.9 in)8.9 mm (0.35 in)28 years20 of 100 (Routine)
10 February 2005Porvoo Norrveckoski, FIdaily rain21.0 mm (0.8 in)13.4 mm (0.5 in)33 years20 of 100 (Routine)
28 January 2005Porvoo Norrveckoski, FIdaily rain8.7 mm (0.34 in)0.5 mm (0.02 in)3 years4 of 100 (Routine)

Extremes by Year

1968 to 2006
Yearly extremes at Porvoo Norrveckoski: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)78.8 mm (3.1 in)199131.4 mm (1.2 in)38
Wettest five days (Rx5day)119.8 mm (4.7 in)199357.7 mm (2.3 in)38
Longest dry spell (CDD)42 days198323 days38

Wettest day (Rx1day)

Wettest day (Rx1day) at Porvoo Norrveckoski by year The wettest day of the year at Porvoo Norrveckoski, 1968 to 2006. The record is 78.8 mm (3.1 in) in 1991, marked on the chart; the median year is 31.4 mm (1.2 in). 0204060801970198019902000Record: 78.8 mm (3.1 in) in 1991
The wettest day of the year at Porvoo Norrveckoski, 1968 to 2006. The record is 78.8 mm (3.1 in) in 1991, marked on the chart; the median year is 31.4 mm (1.2 in).
Wettest day (Rx1day) at Porvoo Norrveckoski by year
YearWettest day (Rx1day)
196825.2 mm (1.0 in)
197034.5 mm (1.4 in)
197123.7 mm (0.9 in)
197255.0 mm (2.2 in)
197324.7 mm (1.0 in)
197422.9 mm (0.9 in)
197518.6 mm (0.7 in)
197627.5 mm (1.1 in)
197731.5 mm (1.2 in)
197827.8 mm (1.1 in)
197929.8 mm (1.2 in)
198028.9 mm (1.1 in)
198138.5 mm (1.5 in)
198233.6 mm (1.3 in)
198327.3 mm (1.1 in)
198429.1 mm (1.1 in)
198523.4 mm (0.9 in)
198635.7 mm (1.4 in)
198732.9 mm (1.3 in)
198844.6 mm (1.8 in)
198937.3 mm (1.5 in)
199024.2 mm (1.0 in)
199178.8 mm (3.1 in)
199232.7 mm (1.3 in)
199370.6 mm (2.8 in)
199428.7 mm (1.1 in)
199534.6 mm (1.4 in)
199631.2 mm (1.2 in)
199719.9 mm (0.8 in)
199823.0 mm (0.9 in)
199934.1 mm (1.3 in)
200024.3 mm (1.0 in)
200145.4 mm (1.8 in)
200234.2 mm (1.3 in)
200318.1 mm (0.7 in)
200434.1 mm (1.3 in)
200538.6 mm (1.5 in)
200643.0 mm (1.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Porvoo Norrveckoski by year The wettest five days of the year at Porvoo Norrveckoski, 1968 to 2006. The record is 119.8 mm (4.7 in) in 1993, marked on the chart; the median year is 57.7 mm (2.3 in). 2550751001251970198019902000Record: 119.8 mm (4.7 in) in 1993
The wettest five days of the year at Porvoo Norrveckoski, 1968 to 2006. The record is 119.8 mm (4.7 in) in 1993, marked on the chart; the median year is 57.7 mm (2.3 in).
Wettest five days (Rx5day) at Porvoo Norrveckoski by year
YearWettest five days (Rx5day)
196845.9 mm (1.8 in)
197083.8 mm (3.3 in)
197139.5 mm (1.6 in)
197271.3 mm (2.8 in)
197337.1 mm (1.5 in)
197467.2 mm (2.6 in)
197532.2 mm (1.3 in)
197652.5 mm (2.1 in)
197747.6 mm (1.9 in)
197854.8 mm (2.2 in)
197954.5 mm (2.1 in)
198056.5 mm (2.2 in)
198157.7 mm (2.3 in)
198255.7 mm (2.2 in)
198366.7 mm (2.6 in)
198454.9 mm (2.2 in)
198557.7 mm (2.3 in)
198669.0 mm (2.7 in)
198744.9 mm (1.8 in)
198869.0 mm (2.7 in)
198957.3 mm (2.3 in)
199063.3 mm (2.5 in)
199179.2 mm (3.1 in)
199273.1 mm (2.9 in)
1993119.8 mm (4.7 in)
199465.7 mm (2.6 in)
199547.0 mm (1.9 in)
199661.9 mm (2.4 in)
199734.8 mm (1.4 in)
199862.0 mm (2.4 in)
199968.2 mm (2.7 in)
200058.4 mm (2.3 in)
200187.5 mm (3.4 in)
200257.7 mm (2.3 in)
200343.9 mm (1.7 in)
2004119.0 mm (4.7 in)
200572.4 mm (2.9 in)
200652.5 mm (2.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Porvoo Norrveckoski by year The longest dry spell of the year at Porvoo Norrveckoski, 1968 to 2006. The record is 42 days in 1983, marked on the chart; the median year is 23 days. 10203040501970198019902000Record: 42 days in 1983
The longest dry spell of the year at Porvoo Norrveckoski, 1968 to 2006. The record is 42 days in 1983, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Porvoo Norrveckoski by year
YearLongest dry spell (CDD)
196820 days
197019 days
197118 days
197238 days
197319 days
197419 days
197516 days
197625 days
197715 days
197827 days
197917 days
198023 days
198119 days
198223 days
198342 days
198422 days
198514 days
198624 days
198741 days
198816 days
198919 days
199025 days
199118 days
199232 days
199324 days
199438 days
199530 days
199623 days
199724 days
199815 days
199922 days
200038 days
200118 days
200235 days
200330 days
200423 days
200521 days
200636 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, 1968 to 2006

A day with at least 30.2 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 82.3 mm (3.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Porvoo Norrveckoski: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years30.2 mm (1.2 in)
5 years40.0 mm (1.6 in)
10 years47.9 mm (1.9 in)
25 years59.9 mm (2.4 in)
50 years70.3 mm (2.8 in)Longer than the 38 years of record
100 years82.3 mm (3.2 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 1968 to 2006.

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: 78.8 mm (3.1 in) in 1991; 70.6 mm (2.8 in) in 1993; 55.0 mm (2.2 in) in 1972.

Download the Data

  • Data for Porvoo Norrveckoski standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Porvoo Norrveckoski 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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