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Built 2026-10-18 (18 October 2026)

Ruhnu Weather Records (LG000026227)

Record envelope, standing records and threshold days for Ruhnu (LG000026227), Latvia, with 122 years of record.

Key Facts for Ruhnu

  • Ruhnu (LG000026227) is a weather station in Latvia at 57.78 latitude and 23.26 longitude, 2 m (7 ft) above sea level.
  • The station reports from 1905 to 2026, 122 years of record.
  • 1,464 records set at Ruhnu still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Ruhnu set a daily record precipitation of 27.5 mm (1.1 in) on 23 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Latvia, 57.78 latitude, 23.26 longitude.
  • Elevation: 2 m (7 ft).
  • Period of record: 1905 to 2026, 122 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

35 days at or beyond a record
Daily record high and record low at Ruhnu, with 2026 drawn through them The band shows the record high and record low for each calendar day at Ruhnu. The lines show the 2026 daily maximum and minimum. 35 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Ruhnu. The lines show the 2026 daily maximum and minimum. 35 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Ruhnu, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan9.0 C (48.2 F)-16.6 C (2.1 F)2.4 C (36.3 F)-8.6 C (16.5 F)
Feb7.9 C (46.2 F)-20.3 C (-4.5 F)-4.7 C (23.5 F)-12.6 C (9.3 F)
Mar13.0 C (55.4 F)-16.8 C (1.8 F)n/an/a
Apr19.8 C (67.6 F)-7.0 C (19.4 F)16.9 C (62.4 F)-4.2 C (24.4 F)
May27.1 C (80.8 F)-2.3 C (27.9 F)26.1 C (79.0 F)1.9 C (35.4 F)
Jun28.7 C (83.7 F)3.5 C (38.3 F)25.4 C (77.7 F)6.6 C (43.9 F)
Jul30.1 C (86.2 F)8.2 C (46.8 F)26.9 C (80.4 F)14.2 C (57.6 F)
Aug29.6 C (85.3 F)7.2 C (45.0 F)24.9 C (76.8 F)7.7 C (45.9 F)
Sep24.2 C (75.6 F)2.4 C (36.3 F)22.6 C (72.7 F)2.2 C (36.0 F)
Oct18.3 C (64.9 F)-3.0 C (26.6 F)15.9 C (60.6 F)0.8 C (33.4 F)
Nov13.6 C (56.5 F)-8.6 C (16.5 F)n/an/a
Dec10.1 C (50.2 F)-11.1 C (12.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Ruhnu by the year they were set 1,464 records at Ruhnu still stand. 2020 holds the most, with 114. 0501001501973: 61974: 51975: 11976: 11977: 12003: 122004: 512005: 422006: 1052007: 662008: 472009: 522010: 662011: 572012: 502013: 732014: 602015: 492016: 582017: 402018: 682019: 692020: 1142021: 672022: 702023: 672024: 692025: 702026: 281973197620042007201020132016201920222025
1,464 records at Ruhnu still stand. 2020 holds the most, with 114.
Standing records at Ruhnu by the year they were set
Year setStanding records
19736
19745
19751
19761
19771
200312
200451
200542
2006105
200766
200847
200952
201066
201157
201250
201373
201460
201549
201658
201740
201868
201969
2020114
202167
202270
202367
202469
202570
202628

All-Time Record Progression

1 new records
When Ruhnu set new all-time records 1 all-time records were set at Ruhnu between 28 August 2010 and 28 August 2010. Each dot is a new record. Record daily precipitation28 August 2010: Record daily precipitation 97.1 mm (3.8 in)2010
1 all-time records were set at Ruhnu between 28 August 2010 and 28 August 2010. Each dot is a new record.
When Ruhnu set new all-time records
DateKindDetail
2010-08-28Record daily precipitationRecord daily precipitation 97.1 mm (3.8 in)

Wettest Day of Each Month

Aug: 97.1 mm (3.8 in)
Record daily precipitation for each month at Ruhnu The wettest day on record for each calendar month at Ruhnu. The most was 97.1 mm (3.8 in) on 28 August 2010. 0255075100 Jan: 26.5 mm (1.0 in), 10 January 1990 Jan Feb: 21.8 mm (0.9 in), 7 February 1990 Feb Mar: 26.3 mm (1.0 in), 21 March 1991 Mar Apr: 30.3 mm (1.2 in), 28 April 1908 Apr May: 42.6 mm (1.7 in), 29 May 2012 May Jun: 50.2 mm (2.0 in), 18 June 1928 Jun Jul: 55.4 mm (2.2 in), 28 July 1988 Jul Aug: 97.1 mm (3.8 in), 28 August 2010 Aug Sep: 43.5 mm (1.7 in), 13 September 1912 Sep Oct: 34.3 mm (1.4 in), 8 October 1913 Oct Nov: 30.4 mm (1.2 in), 22 November 1926 Nov Dec: 29.3 mm (1.2 in), 26 December 1988 Dec
The wettest day on record for each calendar month at Ruhnu. The most was 97.1 mm (3.8 in) on 28 August 2010.
Record daily precipitation for each month at Ruhnu
MonthRecord daily precipitation (mm)Date
Jan26.5 mm (1.0 in)10 January 1990
Feb21.8 mm (0.9 in)7 February 1990
Mar26.3 mm (1.0 in)21 March 1991
Apr30.3 mm (1.2 in)28 April 1908
May42.6 mm (1.7 in)29 May 2012
Jun50.2 mm (2.0 in)18 June 1928
Jul55.4 mm (2.2 in)28 July 1988
Aug97.1 mm (3.8 in)28 August 2010
Sep43.5 mm (1.7 in)13 September 1912
Oct34.3 mm (1.4 in)8 October 1913
Nov30.4 mm (1.2 in)22 November 1926
Dec29.3 mm (1.2 in)26 December 1988

Period of Record Coverage

1973 to 2026
Days with data per year at Ruhnu 28 years of record at Ruhnu, 1973 to 2026. 9 years have data for under 90 percent of days and are left out of rankings: 1973, 1974, 1975, 1976, 2003, 2004, 2005, 2025 and others. 1973: 29 of 365 days1974: 32 of 365 days1975: 6 of 365 days1976: 1 of 366 days2003: 86 of 365 days2004: 292 of 366 days2005: 285 of 365 days2006: 332 of 365 days2007: 358 of 365 days2008: 352 of 366 days2009: 358 of 365 days2010: 349 of 365 days2011: 358 of 365 days2012: 356 of 366 days2013: 360 of 365 days2014: 364 of 365 days2015: 363 of 365 days2016: 359 of 366 days2017: 360 of 365 days2018: 342 of 365 days2019: 351 of 365 days2020: 366 of 366 days2021: 350 of 365 days2022: 365 of 365 days2023: 364 of 365 days2024: 355 of 366 days2025: 319 of 365 days2026: 176 of 365 days197520052010201520202025
28 years of record at Ruhnu, 1973 to 2026. 9 years have data for under 90 percent of days and are left out of rankings: 1973, 1974, 1975, 1976, 2003, 2004, 2005, 2025 and others.
Days with data per year at Ruhnu
YearDays with dataShare of yearComplete
1973298%No
1974329%No
197562%No
197610%No
20038624%No
200429280%No
200528578%No
200633291%Yes
200735898%Yes
200835296%Yes
200935898%Yes
201034996%Yes
201135898%Yes
201235697%Yes
201336099%Yes
2014364100%Yes
201536399%Yes
201635998%Yes
201736099%Yes
201834294%Yes
201935196%Yes
2020366100%Yes
202135096%Yes
2022365100%Yes
2023364100%Yes
202435597%Yes
202531987%No
202617648%No

Latest Records

20
Latest records at Ruhnu
DateStationRecordValueBeat old record byOld record stoodSignificance
23 September 2026Ruhnu, LVdaily rain (Provisional)27.5 mm (1.1 in)7.8 mm (0.31 in)39 years35 of 100 (Notable)
11 September 2026Ruhnu, LVmonthly rain (Provisional)52.5 mm (2.1 in)9.0 mm (0.35 in)113 years66 of 100 (Major)
10 September 2026Ruhnu, LVdaily rain (Provisional)38.5 mm (1.5 in)14.3 mm (0.6 in)63 years54 of 100 (Notable)
6 September 2026Ruhnu, LVdaily rain (Provisional)42.0 mm (1.7 in)23.6 mm (0.9 in)40 years62 of 100 (Major)
30 August 2026Ruhnu, LVdaily rain (Provisional)25.5 mm (1.0 in)0.3 mm (0.01 in)72 years31 of 100 (Routine)
24 August 2026Ruhnu, LVdaily rain (Provisional)35.5 mm (1.4 in)16.2 mm (0.6 in)40 years42 of 100 (Notable)
23 August 2026Ruhnu, LVall-time rain (Provisional)144.0 mm (5.7 in)46.9 mm (1.8 in)15 years74 of 100 (Major)
22 August 2026Ruhnu, LVdaily rain (Provisional)32.5 mm (1.3 in)0.2 mm (0.01 in)120 years40 of 100 (Notable)
18 August 2026Ruhnu, LVdaily rain (Provisional)38.4 mm (1.5 in)6.8 mm (0.27 in)44 years31 of 100 (Routine)
11 August 2026Ruhnu, LVdaily rain70.5 mm (2.8 in)33.5 mm (1.3 in)99 years79 of 100 (Major)
21 July 2026Ruhnu, LVdaily rain39.3 mm (1.5 in)11.5 mm (0.5 in)116 years56 of 100 (Notable)
9 July 2026Ruhnu, LVdaily rain23.1 mm (0.9 in)8.8 mm (0.35 in)11 years20 of 100 (Routine)
8 July 2026Ruhnu, LVdaily rain37.1 mm (1.5 in)11.0 mm (0.4 in)29 years34 of 100 (Routine)
1 August 2025Ruhnu, LVdaily rain26.3 mm (1.0 in)13.7 mm (0.5 in)2 years27 of 100 (Routine)
17 June 2025Ruhnu, LVdaily rain21.7 mm (0.9 in)1.8 mm (0.07 in)28 years20 of 100 (Routine)
2 January 2025Ruhnu, LVdaily rain13.0 mm (0.5 in)4.2 mm (0.17 in)34 years20 of 100 (Routine)
1 January 2025Ruhnu, LVdaily rain12.5 mm (0.5 in)4.7 mm (0.19 in)23 years20 of 100 (Routine)
29 July 2024Ruhnu, LVdaily rain34.5 mm (1.4 in)11.5 mm (0.5 in)84 years51 of 100 (Notable)
29 March 2024Ruhnu, LVdaily rain8.3 mm (0.33 in)1.6 mm (0.06 in)31 years20 of 100 (Routine)
24 February 2024Ruhnu, LVdaily rain9.5 mm (0.37 in)3.8 mm (0.15 in)117 years20 of 100 (Routine)

Climate Trend

18 complete years, 2007 to 2024
Annual mean temperature at Ruhnu as warming stripes, 2007 to 2024 One stripe for each of 18 complete years at Ruhnu, 2007 to 2024. Blue stripes are years cooler than the station's own mean of 8.3 C (46.9 F); red stripes are warmer. The coolest year was 2010, at 6.4 C (43.5 F), and the warmest was 2020, at 9.5 C (49.1 F). The strongest colour marks a difference of 1.9 C (3.4 F). 2007: 8.4 C, +0.2 C from the station mean2008: 8.6 C, +0.4 C from the station mean2009: 7.6 C, -0.7 C from the station mean2010: 6.4 C, -1.9 C from the station mean2011: 8.0 C, -0.3 C from the station mean2012: 7.3 C, -1.0 C from the station mean2013: 7.9 C, -0.3 C from the station mean2014: 8.6 C, +0.3 C from the station mean2015: 8.8 C, +0.6 C from the station mean2016: 8.2 C, 0.0 C from the station mean2017: 7.9 C, -0.4 C from the station mean2018: 8.6 C, +0.4 C from the station mean2019: 8.7 C, +0.4 C from the station mean2020: 9.5 C, +1.2 C from the station mean2021: 7.9 C, -0.3 C from the station mean2022: 8.4 C, +0.2 C from the station mean2023: 8.6 C, +0.4 C from the station mean2024: 9.2 C, +0.9 C from the station mean200720102012201420162018202020222024
One stripe for each of 18 complete years at Ruhnu, 2007 to 2024. Blue stripes are years cooler than the station's own mean of 8.3 C (46.9 F); red stripes are warmer. The coolest year was 2010, at 6.4 C (43.5 F), and the warmest was 2020, at 9.5 C (49.1 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Ruhnu as warming stripes, 2007 to 2024
YearAnnual mean temperatureDifference from the station mean
20078.4 C+0.18 C
20088.6 C+0.36 C
20097.6 C-0.70 C
20106.4 C-1.86 C
20118.0 C-0.27 C
20127.3 C-0.99 C
20137.9 C-0.32 C
20148.6 C+0.31 C
20158.8 C+0.56 C
20168.2 C-0.02 C
20177.9 C-0.40 C
20188.6 C+0.39 C
20198.7 C+0.44 C
20209.5 C+1.24 C
20217.9 C-0.31 C
20228.4 C+0.16 C
20238.6 C+0.38 C
20249.2 C+0.91 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1905 to 2026
Yearly extremes at Ruhnu: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)30.1 C (86.2 F)201826.7 C (80.0 F)28
Coldest night (TNn)-20.3 C (-4.5 F)2011-11.7 C (10.9 F)29
Wettest day (Rx1day)144.0 mm (5.7 in)202628.0 mm (1.1 in)115
Wettest five days (Rx5day)212.5 mm (8.4 in)202649.9 mm (2.0 in)114
Longest dry spell (CDD)85 days198524 days115

Hottest day (TXx)

Hottest day (TXx) at Ruhnu by year The hottest day of the year at Ruhnu, 1905 to 2026. The record is 30.1 C (86.2 F) in 2018, marked on the chart; the median year is 26.7 C (80.0 F). -10010203040192019401960198020002020Record: 30.1 C (86.2 F) in 2018
The hottest day of the year at Ruhnu, 1905 to 2026. The record is 30.1 C (86.2 F) in 2018, marked on the chart; the median year is 26.7 C (80.0 F).
Hottest day (TXx) at Ruhnu by year
YearHottest day (TXx)
1905n/a
1906n/a
1907n/a
1908n/a
1909n/a
1910n/a
1911n/a
1912n/a
1913n/a
1914n/a
1915n/a
1922n/a
1923n/a
1924n/a
1925n/a
1926n/a
1927n/a
1928n/a
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
197322.0 C (71.6 F)
197418.0 C (64.4 F)
197519.0 C (66.2 F)
1976-3.0 C (26.6 F)
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
200319.2 C (66.6 F)
200426.7 C (80.1 F)
200528.6 C (83.5 F)
200628.8 C (83.8 F)
200725.4 C (77.7 F)
200825.2 C (77.4 F)
200925.9 C (78.6 F)
201028.5 C (83.3 F)
201127.6 C (81.7 F)
201228.8 C (83.8 F)
201326.4 C (79.5 F)
201429.9 C (85.8 F)
201526.6 C (79.9 F)
201627.8 C (82.0 F)
201726.7 C (80.1 F)
201830.1 C (86.2 F)
201926.1 C (79.0 F)
202027.9 C (82.2 F)
202129.2 C (84.6 F)
202228.7 C (83.7 F)
202326.3 C (79.3 F)
202425.9 C (78.6 F)
202525.1 C (77.2 F)
202626.9 C (80.4 F)

Coldest night (TNn)

Coldest night (TNn) at Ruhnu by year The coldest night of the year at Ruhnu, 1905 to 2026. The record is -20.3 C (-4.5 F) in 2011, marked on the chart; the median year is -11.7 C (10.9 F). -30-20-100192019401960198020002020Record: -20.3 C (-4.5 F) in 2011
The coldest night of the year at Ruhnu, 1905 to 2026. The record is -20.3 C (-4.5 F) in 2011, marked on the chart; the median year is -11.7 C (10.9 F).
Coldest night (TNn) at Ruhnu by year
YearColdest night (TNn)
1905n/a
1906n/a
1907n/a
1908n/a
1909n/a
1910n/a
1911n/a
1912n/a
1913n/a
1914n/a
1915n/a
1922n/a
1923n/a
1924n/a
1925n/a
1926n/a
1927n/a
1928n/a
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973-9.0 C (15.8 F)
1974-7.0 C (19.4 F)
19750.0 C (32.0 F)
1976-16.0 C (3.2 F)
1977-5.0 C (23.0 F)
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003-5.0 C (23.0 F)
2004-11.7 C (10.9 F)
2005-13.5 C (7.7 F)
2006-17.3 C (0.9 F)
2007-13.3 C (8.1 F)
2008-7.9 C (17.8 F)
2009-11.1 C (12.0 F)
2010-16.6 C (2.1 F)
2011-20.3 C (-4.5 F)
2012-18.5 C (-1.3 F)
2013-14.3 C (6.3 F)
2014-10.4 C (13.3 F)
2015-7.4 C (18.7 F)
2016-12.1 C (10.2 F)
2017-12.9 C (8.8 F)
2018-13.9 C (7.0 F)
2019-7.9 C (17.8 F)
2020-4.9 C (23.2 F)
2021-14.1 C (6.6 F)
2022-7.9 C (17.8 F)
2023-7.8 C (18.0 F)
2024-13.4 C (7.9 F)
2025-6.7 C (19.9 F)
2026-12.6 C (9.3 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Ruhnu by year The wettest day of the year at Ruhnu, 1905 to 2026. The record is 144.0 mm (5.7 in) in 2026, marked on the chart; the median year is 28.0 mm (1.1 in). 050100150192019401960198020002020Record: 144.0 mm (5.7 in) in 2026
The wettest day of the year at Ruhnu, 1905 to 2026. The record is 144.0 mm (5.7 in) in 2026, marked on the chart; the median year is 28.0 mm (1.1 in).
Wettest day (Rx1day) at Ruhnu by year
YearWettest day (Rx1day)
19050.4 mm (0.02 in)
190632.3 mm (1.3 in)
190736.9 mm (1.5 in)
190830.3 mm (1.2 in)
190927.8 mm (1.1 in)
191023.3 mm (0.9 in)
191186.7 mm (3.4 in)
191267.0 mm (2.6 in)
191334.3 mm (1.4 in)
191417.3 mm (0.7 in)
191512.7 mm (0.5 in)
19227.0 mm (0.28 in)
192326.5 mm (1.0 in)
192424.3 mm (1.0 in)
192534.1 mm (1.3 in)
192630.4 mm (1.2 in)
192737.0 mm (1.5 in)
192850.2 mm (2.0 in)
192951.1 mm (2.0 in)
193054.0 mm (2.1 in)
193120.8 mm (0.8 in)
193245.6 mm (1.8 in)
193317.2 mm (0.7 in)
193420.8 mm (0.8 in)
193517.0 mm (0.7 in)
193622.6 mm (0.9 in)
193718.7 mm (0.7 in)
193830.3 mm (1.2 in)
193927.3 mm (1.1 in)
194035.6 mm (1.4 in)
19418.7 mm (0.34 in)
194321.0 mm (0.8 in)
194419.9 mm (0.8 in)
194517.4 mm (0.7 in)
194634.5 mm (1.4 in)
194714.8 mm (0.6 in)
194837.0 mm (1.5 in)
194923.3 mm (0.9 in)
195042.4 mm (1.7 in)
195121.6 mm (0.9 in)
195236.0 mm (1.4 in)
195332.0 mm (1.3 in)
195419.0 mm (0.7 in)
195534.2 mm (1.3 in)
195624.5 mm (1.0 in)
195727.6 mm (1.1 in)
195824.0 mm (0.9 in)
195940.9 mm (1.6 in)
196036.9 mm (1.5 in)
196127.1 mm (1.1 in)
196219.4 mm (0.8 in)
196324.2 mm (1.0 in)
196421.7 mm (0.9 in)
196520.3 mm (0.8 in)
196629.0 mm (1.1 in)
196724.8 mm (1.0 in)
196817.7 mm (0.7 in)
196923.3 mm (0.9 in)
197022.9 mm (0.9 in)
197122.3 mm (0.9 in)
197231.2 mm (1.2 in)
197330.2 mm (1.2 in)
197433.6 mm (1.3 in)
197520.9 mm (0.8 in)
197625.4 mm (1.0 in)
197724.5 mm (1.0 in)
197825.3 mm (1.0 in)
197923.3 mm (0.9 in)
198047.3 mm (1.9 in)
198137.7 mm (1.5 in)
198224.7 mm (1.0 in)
198321.5 mm (0.8 in)
198426.2 mm (1.0 in)
198522.0 mm (0.9 in)
198642.9 mm (1.7 in)
198732.6 mm (1.3 in)
198855.4 mm (2.2 in)
198921.0 mm (0.8 in)
199026.5 mm (1.0 in)
199126.3 mm (1.0 in)
199223.7 mm (0.9 in)
199335.5 mm (1.4 in)
199420.4 mm (0.8 in)
199536.4 mm (1.4 in)
199633.2 mm (1.3 in)
199729.7 mm (1.2 in)
199831.5 mm (1.2 in)
199932.6 mm (1.3 in)
200030.7 mm (1.2 in)
200140.3 mm (1.6 in)
200223.9 mm (0.9 in)
200337.2 mm (1.5 in)
200430.2 mm (1.2 in)
200529.4 mm (1.2 in)
200630.4 mm (1.2 in)
200748.2 mm (1.9 in)
200829.4 mm (1.2 in)
200941.6 mm (1.6 in)
201097.1 mm (3.8 in)
201129.6 mm (1.2 in)
201242.6 mm (1.7 in)
201324.3 mm (1.0 in)
201428.0 mm (1.1 in)
201529.0 mm (1.1 in)
201622.0 mm (0.9 in)
201726.0 mm (1.0 in)
201836.7 mm (1.4 in)
201944.1 mm (1.7 in)
202050.1 mm (2.0 in)
202135.5 mm (1.4 in)
202225.0 mm (1.0 in)
202323.7 mm (0.9 in)
202434.5 mm (1.4 in)
202526.3 mm (1.0 in)
2026144.0 mm (5.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Ruhnu by year The wettest five days of the year at Ruhnu, 1905 to 2026. The record is 212.5 mm (8.4 in) in 2026, marked on the chart; the median year is 49.9 mm (2.0 in). 050100150200250192019401960198020002020Record: 212.5 mm (8.4 in) in 2026
The wettest five days of the year at Ruhnu, 1905 to 2026. The record is 212.5 mm (8.4 in) in 2026, marked on the chart; the median year is 49.9 mm (2.0 in).
Wettest five days (Rx5day) at Ruhnu by year
YearWettest five days (Rx5day)
1905n/a
190657.1 mm (2.2 in)
190783.3 mm (3.3 in)
190835.2 mm (1.4 in)
190950.7 mm (2.0 in)
191050.0 mm (2.0 in)
1911191.3 mm (7.5 in)
1912104.9 mm (4.1 in)
191344.4 mm (1.7 in)
191428.3 mm (1.1 in)
191529.5 mm (1.2 in)
192215.4 mm (0.6 in)
192364.5 mm (2.5 in)
192431.6 mm (1.2 in)
192542.6 mm (1.7 in)
192642.9 mm (1.7 in)
1927103.4 mm (4.1 in)
192880.8 mm (3.2 in)
192986.2 mm (3.4 in)
193079.5 mm (3.1 in)
193144.1 mm (1.7 in)
193296.3 mm (3.8 in)
193334.9 mm (1.4 in)
193433.6 mm (1.3 in)
193547.5 mm (1.9 in)
193635.4 mm (1.4 in)
193738.1 mm (1.5 in)
193852.0 mm (2.0 in)
193935.4 mm (1.4 in)
194058.6 mm (2.3 in)
194113.3 mm (0.5 in)
194365.9 mm (2.6 in)
194427.3 mm (1.1 in)
194530.9 mm (1.2 in)
194661.5 mm (2.4 in)
194727.5 mm (1.1 in)
194853.7 mm (2.1 in)
194947.6 mm (1.9 in)
195058.2 mm (2.3 in)
195140.7 mm (1.6 in)
195256.0 mm (2.2 in)
195346.2 mm (1.8 in)
195441.0 mm (1.6 in)
195555.8 mm (2.2 in)
195654.7 mm (2.2 in)
195749.2 mm (1.9 in)
195833.3 mm (1.3 in)
195981.9 mm (3.2 in)
196049.3 mm (1.9 in)
196142.8 mm (1.7 in)
196248.2 mm (1.9 in)
196335.2 mm (1.4 in)
196439.9 mm (1.6 in)
196545.7 mm (1.8 in)
196651.9 mm (2.0 in)
196753.7 mm (2.1 in)
196830.7 mm (1.2 in)
196932.3 mm (1.3 in)
197029.6 mm (1.2 in)
197130.4 mm (1.2 in)
197241.2 mm (1.6 in)
197342.3 mm (1.7 in)
197468.3 mm (2.7 in)
197532.6 mm (1.3 in)
197635.5 mm (1.4 in)
197756.3 mm (2.2 in)
197842.6 mm (1.7 in)
197926.6 mm (1.0 in)
198090.3 mm (3.6 in)
198156.2 mm (2.2 in)
198258.5 mm (2.3 in)
198335.9 mm (1.4 in)
198450.2 mm (2.0 in)
198548.7 mm (1.9 in)
198662.2 mm (2.4 in)
198767.2 mm (2.6 in)
198881.0 mm (3.2 in)
198943.4 mm (1.7 in)
199049.2 mm (1.9 in)
199155.0 mm (2.2 in)
199243.4 mm (1.7 in)
199357.7 mm (2.3 in)
199443.4 mm (1.7 in)
199578.6 mm (3.1 in)
199660.8 mm (2.4 in)
199769.3 mm (2.7 in)
199860.4 mm (2.4 in)
199962.6 mm (2.5 in)
200037.4 mm (1.5 in)
200150.6 mm (2.0 in)
200264.2 mm (2.5 in)
200363.1 mm (2.5 in)
200442.7 mm (1.7 in)
200547.6 mm (1.9 in)
200641.8 mm (1.6 in)
200763.3 mm (2.5 in)
200853.3 mm (2.1 in)
200972.7 mm (2.9 in)
2010126.0 mm (5.0 in)
201156.2 mm (2.2 in)
201261.8 mm (2.4 in)
201348.1 mm (1.9 in)
201437.0 mm (1.5 in)
201539.1 mm (1.5 in)
201654.0 mm (2.1 in)
201752.7 mm (2.1 in)
201855.9 mm (2.2 in)
201998.8 mm (3.9 in)
202068.2 mm (2.7 in)
202161.1 mm (2.4 in)
202248.1 mm (1.9 in)
202349.7 mm (2.0 in)
202457.1 mm (2.2 in)
202543.7 mm (1.7 in)
2026212.5 mm (8.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Ruhnu by year The longest dry spell of the year at Ruhnu, 1905 to 2026. The record is 85 days in 1985, marked on the chart; the median year is 24 days. 0255075100192019401960198020002020Record: 85 days in 1985
The longest dry spell of the year at Ruhnu, 1905 to 2026. The record is 85 days in 1985, marked on the chart; the median year is 24 days.
Longest dry spell (CDD) at Ruhnu by year
YearLongest dry spell (CDD)
19051 day
190619 days
190728 days
190824 days
190922 days
191015 days
191124 days
191234 days
191323 days
191425 days
191520 days
19225 days
192323 days
192415 days
192514 days
192622 days
192719 days
192817 days
192917 days
193023 days
193119 days
193224 days
193322 days
193421 days
193520 days
193616 days
193726 days
193824 days
193920 days
194034 days
194119 days
194316 days
194417 days
194511 days
194626 days
194729 days
194834 days
194941 days
195027 days
195129 days
195218 days
195328 days
195427 days
195525 days
195638 days
195718 days
195826 days
195920 days
196023 days
196131 days
196220 days
196325 days
196424 days
196522 days
196631 days
196715 days
196819 days
196925 days
197025 days
197153 days
197243 days
197325 days
197430 days
197524 days
197623 days
197713 days
197822 days
197918 days
198025 days
198119 days
198226 days
198326 days
198420 days
198585 days
198624 days
198729 days
198820 days
198927 days
199050 days
199121 days
199221 days
199324 days
199445 days
199519 days
199624 days
199742 days
199827 days
199928 days
200032 days
200116 days
200234 days
200335 days
200413 days
200524 days
200627 days
200731 days
200828 days
200925 days
201022 days
201127 days
201214 days
201326 days
201424 days
201530 days
201623 days
201717 days
201839 days
201941 days
202021 days
202131 days
202242 days
202318 days
202421 days
202518 days
202641 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

103 years, 1906 to 2025

A day with at least 28.6 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 72.3 mm (2.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Ruhnu: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years28.6 mm (1.1 in)
5 years37.8 mm (1.5 in)
10 years44.8 mm (1.8 in)
25 years54.8 mm (2.2 in)
50 years63.1 mm (2.5 in)
100 years72.3 mm (2.8 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 103 years of values from 1906 to 2025.

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: 97.1 mm (3.8 in) in 2010; 67.0 mm (2.6 in) in 1912; 55.4 mm (2.2 in) in 1988.

Download the Data

  • Data for Ruhnu standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Ruhnu 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 (2026-10-16).