Hanko Russaro Weather Records (FIE00141925)
Record envelope, standing records and threshold days for Hanko Russaro (FIE00141925), Finland, with 68 years of record.
Key Facts for Hanko Russaro
- Hanko Russaro (FIE00141925) is a weather station in Finland at 59.77 latitude and 22.95 longitude, 5 m (16 ft) above sea level.
- The station reports from 1959 to 2026, 68 years of record.
- 1,464 records set at Hanko Russaro still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Hanko Russaro set a daily record precipitation of 17.0 mm (0.7 in) on 20 August 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Finland, 59.77 latitude, 22.95 longitude.
- Elevation: 5 m (16 ft).
- Period of record: 1959 to 2026, 68 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
6 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 7.6 C (45.7 F) | -33.6 C (-28.5 F) | 1.7 C (35.1 F) | -12.5 C (9.5 F) |
| Feb | 7.8 C (46.0 F) | -30.6 C (-23.1 F) | 2.2 C (36.0 F) | -17.6 C (0.3 F) |
| Mar | 10.2 C (50.4 F) | -21.2 C (-6.2 F) | 6.4 C (43.5 F) | -2.1 C (28.2 F) |
| Apr | 17.7 C (63.9 F) | -13.6 C (7.5 F) | 16.7 C (62.1 F) | -1.3 C (29.7 F) |
| May | 26.5 C (79.7 F) | -2.6 C (27.3 F) | 17.4 C (63.3 F) | 3.1 C (37.6 F) |
| Jun | 28.2 C (82.8 F) | 3.7 C (38.7 F) | 23.2 C (73.8 F) | 8.4 C (47.1 F) |
| Jul | 30.5 C (86.9 F) | 8.2 C (46.8 F) | 26.0 C (78.8 F) | 10.3 C (50.5 F) |
| Aug | 27.7 C (81.9 F) | 6.0 C (42.8 F) | 22.0 C (71.6 F) | 11.2 C (52.2 F) |
| Sep | 22.9 C (73.2 F) | 1.0 C (33.8 F) | n/a | n/a |
| Oct | 16.3 C (61.3 F) | -6.7 C (19.9 F) | n/a | n/a |
| Nov | 12.9 C (55.2 F) | -15.0 C (5.0 F) | n/a | n/a |
| Dec | 9.6 C (49.3 F) | -27.3 C (-17.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1959 | 25 |
| 1960 | 12 |
| 1961 | 21 |
| 1962 | 18 |
| 1963 | 28 |
| 1964 | 4 |
| 1965 | 32 |
| 1966 | 41 |
| 1967 | 16 |
| 1968 | 29 |
| 1969 | 37 |
| 1970 | 24 |
| 1971 | 13 |
| 1972 | 14 |
| 1973 | 38 |
| 1974 | 6 |
| 1975 | 15 |
| 1976 | 21 |
| 1977 | 36 |
| 1978 | 35 |
| 1979 | 28 |
| 1980 | 17 |
| 1981 | 10 |
| 1982 | 22 |
| 1983 | 17 |
| 1984 | 10 |
| 1985 | 24 |
| 1986 | 15 |
| 1987 | 42 |
| 1988 | 18 |
| 1989 | 12 |
| 1990 | 27 |
| 1991 | 11 |
| 1992 | 17 |
| 1993 | 11 |
| 1994 | 12 |
| 1995 | 11 |
| 1996 | 20 |
| 1997 | 12 |
| 1998 | 12 |
| 1999 | 5 |
| 2000 | 23 |
| 2001 | 8 |
| 2002 | 53 |
| 2003 | 21 |
| 2004 | 3 |
| 2005 | 10 |
| 2006 | 34 |
| 2007 | 23 |
| 2008 | 14 |
| 2009 | 3 |
| 2010 | 21 |
| 2011 | 15 |
| 2012 | 9 |
| 2013 | 6 |
| 2014 | 23 |
| 2015 | 33 |
| 2016 | 18 |
| 2017 | 8 |
| 2018 | 42 |
| 2019 | 22 |
| 2020 | 81 |
| 2021 | 21 |
| 2022 | 23 |
| 2023 | 32 |
| 2024 | 46 |
| 2025 | 47 |
| 2026 | 7 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1997-08-10 | Record high minimum temperature | Record high minimum temperature 21.8 C (71.2 F) |
| 2003-07-14 | Record high maximum temperature | Record high maximum temperature 30.5 C (86.9 F) |
| 2003-07-31 | Record high minimum temperature | Record high minimum temperature 22.0 C (71.6 F) |
| 2003-08-01 | Record high minimum temperature | Record high minimum temperature 22.5 C (72.5 F) |
Wettest Day of Each Month
May: 49.2 mm (1.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 27.1 mm (1.1 in) | 31 January 2004 |
| Feb | 25.6 mm (1.0 in) | 16 February 2024 |
| Mar | 20.9 mm (0.8 in) | 22 March 1983 |
| Apr | 38.4 mm (1.5 in) | 2 April 2024 |
| May | 49.2 mm (1.9 in) | 4 May 1988 |
| Jun | 30.3 mm (1.2 in) | 15 June 2026 |
| Jul | 47.0 mm (1.9 in) | 6 July 1996 |
| Aug | 48.2 mm (1.9 in) | 6 August 1967 |
| Sep | 47.8 mm (1.9 in) | 3 September 2000 |
| Oct | 41.0 mm (1.6 in) | 3 October 2023 |
| Nov | 37.3 mm (1.5 in) | 20 November 2024 |
| Dec | 35.1 mm (1.4 in) | 21 December 2003 |
Period of Record Coverage
1959 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 305 | 83% | No |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 364 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 361 | 99% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 359 | 98% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 355 | 97% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 364 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 243 | 67% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 20 August 2026 | Hanko Russaro, FI | daily rain (Provisional) | 17.0 mm (0.7 in) | 1.7 mm (0.07 in) | 65 years | 20 of 100 (Routine) |
| 15 June 2026 | Hanko Russaro, FI | monthly rain | 30.3 mm (1.2 in) | 0.3 mm (0.01 in) | 45 years | 29 of 100 (Routine) |
| 21 April 2026 | Hanko Russaro, FI | daily high max | 14.8 C (58.6 F) | 1.8 C (3.2 F) | 5 years | 13 of 100 (Routine) |
| 17 April 2026 | Hanko Russaro, FI | daily high max | 16.7 C (62.1 F) | 5.0 C (9.0 F) | 19 years | 28 of 100 (Routine) |
| 17 April 2026 | Hanko Russaro, FI | daily high min | 5.8 C (42.4 F) | 1.0 C (1.8 F) | 0 years | 10 of 100 (Routine) |
| 8 April 2026 | Hanko Russaro, FI | daily high max | 9.4 C (48.9 F) | 0.2 C (0.4 F) | 3 years | 6 of 100 (Routine) |
| 14 March 2026 | Hanko Russaro, FI | daily high min | 2.1 C (35.8 F) | 0.1 C (0.2 F) | 12 years | 9 of 100 (Routine) |
| 7 March 2026 | Hanko Russaro, FI | daily high max | 6.0 C (42.8 F) | 0.4 C (0.7 F) | 0 years | 7 of 100 (Routine) |
| 5 March 2026 | Hanko Russaro, FI | daily high max (Tie) | 4.7 C (40.5 F) | tie | 0 years | 1 of 100 (Routine) |
| 4 March 2026 | Hanko Russaro, FI | daily high max | 4.7 C (40.5 F) | 0.3 C (0.5 F) | 0 years | 6 of 100 (Routine) |
| 20 December 2025 | Hanko Russaro, FI | daily high min | 6.6 C (43.9 F) | 1.1 C (2.0 F) | 4 years | 9 of 100 (Routine) |
| 19 December 2025 | Hanko Russaro, FI | daily high min | 6.5 C (43.7 F) | 1.3 C (2.3 F) | 10 years | 11 of 100 (Routine) |
| 19 December 2025 | Hanko Russaro, FI | daily high max | 7.7 C (45.9 F) | 0.2 C (0.4 F) | 10 years | 9 of 100 (Routine) |
| 18 December 2025 | Hanko Russaro, FI | daily high min | 5.2 C (41.4 F) | 0.8 C (1.4 F) | 4 years | 8 of 100 (Routine) |
| 17 December 2025 | Hanko Russaro, FI | daily high min | 6.9 C (44.4 F) | 2.5 C (4.5 F) | 32 years | 20 of 100 (Routine) |
| 17 December 2025 | Hanko Russaro, FI | daily high max | 7.6 C (45.7 F) | 0.8 C (1.4 F) | 12 years | 11 of 100 (Routine) |
| 16 December 2025 | Hanko Russaro, FI | daily high max | 7.7 C (45.9 F) | 1.1 C (2.0 F) | 20 years | 14 of 100 (Routine) |
| 16 December 2025 | Hanko Russaro, FI | daily high min | 6.5 C (43.7 F) | 1.6 C (2.9 F) | 19 years | 14 of 100 (Routine) |
| 14 December 2025 | Hanko Russaro, FI | daily rain | 7.6 mm (0.30 in) | 0.4 mm (0.02 in) | 44 years | 20 of 100 (Routine) |
| 11 December 2025 | Hanko Russaro, FI | daily high max | 8.6 C (47.5 F) | 0.7 C (1.3 F) | 24 years | 14 of 100 (Routine) |
Climate Trend
66 complete years, 1959 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1959 | 6.4 C | +0.07 C |
| 1960 | 5.1 C | -1.25 C |
| 1961 | 7.1 C | +0.77 C |
| 1962 | 5.0 C | -1.32 C |
| 1963 | 4.7 C | -1.56 C |
| 1965 | 5.2 C | -1.10 C |
| 1966 | 4.0 C | -2.26 C |
| 1967 | 5.7 C | -0.57 C |
| 1968 | 5.0 C | -1.35 C |
| 1969 | 4.2 C | -2.12 C |
| 1970 | 4.5 C | -1.83 C |
| 1971 | 5.6 C | -0.69 C |
| 1972 | 6.1 C | -0.21 C |
| 1973 | 5.9 C | -0.36 C |
| 1974 | 6.8 C | +0.54 C |
| 1975 | 7.4 C | +1.12 C |
| 1976 | 4.7 C | -1.63 C |
| 1977 | 4.9 C | -1.43 C |
| 1978 | 4.4 C | -1.93 C |
| 1979 | 4.8 C | -1.51 C |
| 1980 | 5.4 C | -0.89 C |
| 1981 | 5.7 C | -0.64 C |
| 1982 | 6.1 C | -0.19 C |
| 1983 | 6.2 C | -0.09 C |
| 1984 | 6.2 C | -0.06 C |
| 1985 | 3.8 C | -2.49 C |
| 1986 | 5.0 C | -1.33 C |
| 1987 | 3.7 C | -2.62 C |
| 1988 | 6.2 C | -0.13 C |
| 1989 | 7.3 C | +1.03 C |
| 1990 | 7.3 C | +1.02 C |
| 1991 | 6.6 C | +0.34 C |
| 1992 | 6.9 C | +0.55 C |
| 1993 | 6.0 C | -0.29 C |
| 1994 | 5.8 C | -0.52 C |
| 1995 | 6.8 C | +0.49 C |
| 1996 | 5.1 C | -1.19 C |
| 1997 | 6.8 C | +0.52 C |
| 1998 | 6.0 C | -0.33 C |
| 1999 | 6.8 C | +0.52 C |
| 2000 | 7.5 C | +1.21 C |
| 2001 | 6.8 C | +0.46 C |
| 2002 | 6.9 C | +0.60 C |
| 2003 | 6.1 C | -0.20 C |
| 2004 | 6.8 C | +0.50 C |
| 2005 | 7.0 C | +0.68 C |
| 2006 | 7.0 C | +0.68 C |
| 2007 | 7.3 C | +0.98 C |
| 2008 | 7.9 C | +1.63 C |
| 2009 | 6.7 C | +0.44 C |
| 2010 | 5.3 C | -0.98 C |
| 2011 | 7.3 C | +1.02 C |
| 2012 | 6.4 C | +0.11 C |
| 2013 | 6.9 C | +0.63 C |
| 2014 | 7.7 C | +1.35 C |
| 2015 | 8.2 C | +1.87 C |
| 2016 | 7.0 C | +0.74 C |
| 2017 | 7.1 C | +0.78 C |
| 2018 | 7.5 C | +1.15 C |
| 2019 | 7.7 C | +1.44 C |
| 2020 | 9.0 C | +2.67 C |
| 2021 | 6.9 C | +0.63 C |
| 2022 | 7.7 C | +1.38 C |
| 2023 | 7.4 C | +1.11 C |
| 2024 | 8.1 C | +1.76 C |
| 2025 | 8.5 C | +2.18 C |
The annual mean temperature here has risen by 0.4 C (0.3 to 0.5) per decade over 1959 to 2025. In Fahrenheit: 0.8 F (0.6 to 1.0) per decade. The slope is a straight line fitted to 66 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.4 C (0.3 to 0.5) per decade | 0.8 F (0.6 to 1.0) per decade | 1959 to 2025 | 66 | Rise |
| Mean daily maximum | 0.5 C (0.4 to 0.6) per decade | 0.8 F (0.6 to 1.0) per decade | 1959 to 2025 | 66 | Rise |
| Mean daily minimum | 0.4 C (0.3 to 0.5) per decade | 0.7 F (0.5 to 1.0) per decade | 1959 to 2025 | 66 | Rise |
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
1959 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 30.5 C (86.9 F) | 2003 | 25.3 C (77.5 F) | 68 |
| Coldest night (TNn) | -33.6 C (-28.5 F) | 1987 | -17.4 C (0.6 F) | 68 |
| Wettest day (Rx1day) | 49.2 mm (1.9 in) | 1988 | 28.2 mm (1.1 in) | 55 |
| Wettest five days (Rx5day) | 98.3 mm (3.9 in) | 1996 | 45.5 mm (1.8 in) | 55 |
| Longest dry spell (CDD) | 41 days | 1963 | 24 days | 55 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1959 | 26.3 C (79.3 F) |
| 1960 | 21.6 C (70.9 F) |
| 1961 | 23.2 C (73.8 F) |
| 1962 | 18.8 C (65.8 F) |
| 1963 | 22.5 C (72.5 F) |
| 1964 | 24.2 C (75.6 F) |
| 1965 | 22.8 C (73.0 F) |
| 1966 | 25.1 C (77.2 F) |
| 1967 | 23.0 C (73.4 F) |
| 1968 | 22.9 C (73.2 F) |
| 1969 | 25.8 C (78.4 F) |
| 1970 | 22.5 C (72.5 F) |
| 1971 | 22.6 C (72.7 F) |
| 1972 | 27.0 C (80.6 F) |
| 1973 | 28.4 C (83.1 F) |
| 1974 | 21.0 C (69.8 F) |
| 1975 | 26.4 C (79.5 F) |
| 1976 | 22.9 C (73.2 F) |
| 1977 | 24.8 C (76.6 F) |
| 1978 | 24.9 C (76.8 F) |
| 1979 | 22.2 C (72.0 F) |
| 1980 | 25.2 C (77.4 F) |
| 1981 | 24.5 C (76.1 F) |
| 1982 | 26.0 C (78.8 F) |
| 1983 | 27.7 C (81.9 F) |
| 1984 | 24.5 C (76.1 F) |
| 1985 | 23.9 C (75.0 F) |
| 1986 | 23.6 C (74.5 F) |
| 1987 | 24.1 C (75.4 F) |
| 1988 | 26.4 C (79.5 F) |
| 1989 | 24.2 C (75.6 F) |
| 1990 | 22.9 C (73.2 F) |
| 1991 | 25.6 C (78.1 F) |
| 1992 | 23.1 C (73.6 F) |
| 1993 | 23.3 C (73.9 F) |
| 1994 | 27.4 C (81.3 F) |
| 1995 | 26.9 C (80.4 F) |
| 1996 | 22.9 C (73.2 F) |
| 1997 | 27.2 C (81.0 F) |
| 1998 | 20.3 C (68.5 F) |
| 1999 | 26.5 C (79.7 F) |
| 2000 | 23.8 C (74.8 F) |
| 2001 | 27.0 C (80.6 F) |
| 2002 | 26.0 C (78.8 F) |
| 2003 | 30.5 C (86.9 F) |
| 2004 | 25.3 C (77.5 F) |
| 2005 | 27.5 C (81.5 F) |
| 2006 | 26.1 C (79.0 F) |
| 2007 | 25.4 C (77.7 F) |
| 2008 | 27.9 C (82.2 F) |
| 2009 | 25.8 C (78.4 F) |
| 2010 | 27.5 C (81.5 F) |
| 2011 | 26.6 C (79.9 F) |
| 2012 | 23.5 C (74.3 F) |
| 2013 | 24.0 C (75.2 F) |
| 2014 | 29.0 C (84.2 F) |
| 2015 | 23.0 C (73.4 F) |
| 2016 | 23.8 C (74.8 F) |
| 2017 | 22.9 C (73.2 F) |
| 2018 | 28.9 C (84.0 F) |
| 2019 | 29.2 C (84.6 F) |
| 2020 | 28.2 C (82.8 F) |
| 2021 | 29.0 C (84.2 F) |
| 2022 | 26.6 C (79.9 F) |
| 2023 | 26.3 C (79.3 F) |
| 2024 | 25.3 C (77.5 F) |
| 2025 | 26.9 C (80.4 F) |
| 2026 | 26.0 C (78.8 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1959 | -15.5 C (4.1 F) |
| 1960 | -21.2 C (-6.2 F) |
| 1961 | -13.5 C (7.7 F) |
| 1962 | -17.5 C (0.5 F) |
| 1963 | -20.8 C (-5.4 F) |
| 1964 | -18.8 C (-1.8 F) |
| 1965 | -19.1 C (-2.4 F) |
| 1966 | -30.6 C (-23.1 F) |
| 1967 | -24.3 C (-11.7 F) |
| 1968 | -30.0 C (-22.0 F) |
| 1969 | -21.5 C (-6.7 F) |
| 1970 | -25.7 C (-14.3 F) |
| 1971 | -18.4 C (-1.1 F) |
| 1972 | -18.2 C (-0.8 F) |
| 1973 | -19.6 C (-3.3 F) |
| 1974 | -8.1 C (17.4 F) |
| 1975 | -14.7 C (5.5 F) |
| 1976 | -19.5 C (-3.1 F) |
| 1977 | -23.0 C (-9.4 F) |
| 1978 | -27.3 C (-17.1 F) |
| 1979 | -26.7 C (-16.1 F) |
| 1980 | -23.5 C (-10.3 F) |
| 1981 | -17.4 C (0.7 F) |
| 1982 | -22.9 C (-9.2 F) |
| 1983 | -11.8 C (10.8 F) |
| 1984 | -15.1 C (4.8 F) |
| 1985 | -26.7 C (-16.1 F) |
| 1986 | -21.8 C (-7.2 F) |
| 1987 | -33.6 C (-28.5 F) |
| 1988 | -14.8 C (5.4 F) |
| 1989 | -14.0 C (6.8 F) |
| 1990 | -11.6 C (11.1 F) |
| 1991 | -14.4 C (6.1 F) |
| 1992 | -10.8 C (12.6 F) |
| 1993 | -14.1 C (6.6 F) |
| 1994 | -18.9 C (-2.0 F) |
| 1995 | -14.9 C (5.2 F) |
| 1996 | -18.3 C (-0.9 F) |
| 1997 | -15.3 C (4.5 F) |
| 1998 | -15.2 C (4.6 F) |
| 1999 | -24.5 C (-12.1 F) |
| 2000 | -10.3 C (13.5 F) |
| 2001 | -22.2 C (-8.0 F) |
| 2002 | -19.5 C (-3.1 F) |
| 2003 | -25.5 C (-13.9 F) |
| 2004 | -14.6 C (5.7 F) |
| 2005 | -15.8 C (3.6 F) |
| 2006 | -19.1 C (-2.4 F) |
| 2007 | -18.9 C (-2.0 F) |
| 2008 | -8.4 C (16.9 F) |
| 2009 | -12.1 C (10.2 F) |
| 2010 | -19.6 C (-3.3 F) |
| 2011 | -20.2 C (-4.4 F) |
| 2012 | -17.3 C (0.9 F) |
| 2013 | -15.1 C (4.8 F) |
| 2014 | -12.8 C (9.0 F) |
| 2015 | -10.1 C (13.8 F) |
| 2016 | -18.8 C (-1.8 F) |
| 2017 | -15.5 C (4.1 F) |
| 2018 | -17.3 C (0.9 F) |
| 2019 | -12.0 C (10.4 F) |
| 2020 | -7.0 C (19.4 F) |
| 2021 | -16.8 C (1.8 F) |
| 2022 | -9.4 C (15.1 F) |
| 2023 | -11.1 C (12.0 F) |
| 2024 | -14.8 C (5.4 F) |
| 2025 | -9.3 C (15.3 F) |
| 2026 | -17.6 C (0.3 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1959 | 14.8 mm (0.6 in) |
| 1960 | 38.6 mm (1.5 in) |
| 1961 | 34.9 mm (1.4 in) |
| 1962 | 31.1 mm (1.2 in) |
| 1963 | 16.6 mm (0.7 in) |
| 1964 | 15.4 mm (0.6 in) |
| 1965 | 17.9 mm (0.7 in) |
| 1966 | 28.2 mm (1.1 in) |
| 1967 | 48.2 mm (1.9 in) |
| 1968 | 25.0 mm (1.0 in) |
| 1969 | 16.7 mm (0.7 in) |
| 1970 | 35.9 mm (1.4 in) |
| 1971 | 15.0 mm (0.6 in) |
| 1972 | 29.6 mm (1.2 in) |
| 1973 | 15.7 mm (0.6 in) |
| 1974 | 43.9 mm (1.7 in) |
| 1975 | 17.9 mm (0.7 in) |
| 1976 | 12.8 mm (0.5 in) |
| 1977 | 23.6 mm (0.9 in) |
| 1978 | 20.9 mm (0.8 in) |
| 1979 | 34.5 mm (1.4 in) |
| 1980 | 30.0 mm (1.2 in) |
| 1981 | 21.1 mm (0.8 in) |
| 1982 | 31.8 mm (1.3 in) |
| 1983 | 21.1 mm (0.8 in) |
| 1984 | 29.1 mm (1.1 in) |
| 1985 | 16.1 mm (0.6 in) |
| 1986 | 34.0 mm (1.3 in) |
| 1987 | 43.8 mm (1.7 in) |
| 1988 | 49.2 mm (1.9 in) |
| 1989 | 18.5 mm (0.7 in) |
| 1990 | 28.5 mm (1.1 in) |
| 1991 | 28.5 mm (1.1 in) |
| 1992 | 32.9 mm (1.3 in) |
| 1993 | 42.3 mm (1.7 in) |
| 1994 | 21.6 mm (0.9 in) |
| 1995 | 23.1 mm (0.9 in) |
| 1996 | 47.0 mm (1.9 in) |
| 1997 | 22.6 mm (0.9 in) |
| 1998 | 24.9 mm (1.0 in) |
| 1999 | 25.5 mm (1.0 in) |
| 2000 | 47.8 mm (1.9 in) |
| 2001 | 41.7 mm (1.6 in) |
| 2002 | 24.0 mm (0.9 in) |
| 2003 | 35.1 mm (1.4 in) |
| 2004 | 47.1 mm (1.9 in) |
| 2005 | 26.0 mm (1.0 in) |
| 2006 | n/a |
| 2007 | n/a |
| 2008 | n/a |
| 2009 | n/a |
| 2010 | n/a |
| 2011 | n/a |
| 2012 | n/a |
| 2013 | n/a |
| 2014 | n/a |
| 2015 | n/a |
| 2016 | n/a |
| 2017 | n/a |
| 2018 | n/a |
| 2019 | 25.7 mm (1.0 in) |
| 2020 | 31.8 mm (1.3 in) |
| 2021 | 26.0 mm (1.0 in) |
| 2022 | 21.8 mm (0.9 in) |
| 2023 | 46.3 mm (1.8 in) |
| 2024 | 38.4 mm (1.5 in) |
| 2025 | 22.0 mm (0.9 in) |
| 2026 | 30.3 mm (1.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1959 | 35.7 mm (1.4 in) |
| 1960 | 59.3 mm (2.3 in) |
| 1961 | 39.7 mm (1.6 in) |
| 1962 | 38.4 mm (1.5 in) |
| 1963 | 38.3 mm (1.5 in) |
| 1964 | 33.5 mm (1.3 in) |
| 1965 | 40.9 mm (1.6 in) |
| 1966 | 43.4 mm (1.7 in) |
| 1967 | 82.5 mm (3.2 in) |
| 1968 | 37.4 mm (1.5 in) |
| 1969 | 34.4 mm (1.4 in) |
| 1970 | 62.3 mm (2.5 in) |
| 1971 | 25.4 mm (1.0 in) |
| 1972 | 43.8 mm (1.7 in) |
| 1973 | 40.6 mm (1.6 in) |
| 1974 | 55.7 mm (2.2 in) |
| 1975 | 28.7 mm (1.1 in) |
| 1976 | 25.2 mm (1.0 in) |
| 1977 | 51.9 mm (2.0 in) |
| 1978 | 45.1 mm (1.8 in) |
| 1979 | 73.9 mm (2.9 in) |
| 1980 | 49.6 mm (2.0 in) |
| 1981 | 36.3 mm (1.4 in) |
| 1982 | 50.8 mm (2.0 in) |
| 1983 | 39.8 mm (1.6 in) |
| 1984 | 50.3 mm (2.0 in) |
| 1985 | 32.5 mm (1.3 in) |
| 1986 | 54.2 mm (2.1 in) |
| 1987 | 51.3 mm (2.0 in) |
| 1988 | 59.8 mm (2.4 in) |
| 1989 | 33.3 mm (1.3 in) |
| 1990 | 46.0 mm (1.8 in) |
| 1991 | 42.3 mm (1.7 in) |
| 1992 | 75.3 mm (3.0 in) |
| 1993 | 59.7 mm (2.4 in) |
| 1994 | 42.8 mm (1.7 in) |
| 1995 | 43.6 mm (1.7 in) |
| 1996 | 98.3 mm (3.9 in) |
| 1997 | 33.9 mm (1.3 in) |
| 1998 | 54.4 mm (2.1 in) |
| 1999 | 54.0 mm (2.1 in) |
| 2000 | 67.4 mm (2.7 in) |
| 2001 | 46.8 mm (1.8 in) |
| 2002 | 34.7 mm (1.4 in) |
| 2003 | 63.6 mm (2.5 in) |
| 2004 | 50.8 mm (2.0 in) |
| 2005 | 84.8 mm (3.3 in) |
| 2006 | n/a |
| 2007 | n/a |
| 2008 | n/a |
| 2009 | n/a |
| 2010 | n/a |
| 2011 | n/a |
| 2012 | n/a |
| 2013 | n/a |
| 2014 | n/a |
| 2015 | n/a |
| 2016 | n/a |
| 2017 | n/a |
| 2018 | n/a |
| 2019 | 42.8 mm (1.7 in) |
| 2020 | 51.9 mm (2.0 in) |
| 2021 | 56.4 mm (2.2 in) |
| 2022 | 44.5 mm (1.8 in) |
| 2023 | 89.4 mm (3.5 in) |
| 2024 | 52.9 mm (2.1 in) |
| 2025 | 33.6 mm (1.3 in) |
| 2026 | 45.5 mm (1.8 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1959 | 28 days |
| 1960 | 23 days |
| 1961 | 29 days |
| 1962 | 17 days |
| 1963 | 41 days |
| 1964 | 27 days |
| 1965 | 26 days |
| 1966 | 24 days |
| 1967 | 22 days |
| 1968 | 36 days |
| 1969 | 23 days |
| 1970 | 35 days |
| 1971 | 24 days |
| 1972 | 37 days |
| 1973 | 35 days |
| 1974 | 26 days |
| 1975 | 20 days |
| 1976 | 26 days |
| 1977 | 17 days |
| 1978 | 22 days |
| 1979 | 18 days |
| 1980 | 23 days |
| 1981 | 36 days |
| 1982 | 24 days |
| 1983 | 32 days |
| 1984 | 20 days |
| 1985 | 17 days |
| 1986 | 28 days |
| 1987 | 20 days |
| 1988 | 20 days |
| 1989 | 24 days |
| 1990 | 22 days |
| 1991 | 22 days |
| 1992 | 20 days |
| 1993 | 34 days |
| 1994 | 40 days |
| 1995 | 19 days |
| 1996 | 39 days |
| 1997 | 25 days |
| 1998 | 21 days |
| 1999 | 25 days |
| 2000 | 23 days |
| 2001 | 19 days |
| 2002 | 34 days |
| 2003 | 32 days |
| 2004 | 25 days |
| 2005 | 20 days |
| 2006 | n/a |
| 2007 | n/a |
| 2008 | n/a |
| 2009 | n/a |
| 2010 | n/a |
| 2011 | n/a |
| 2012 | n/a |
| 2013 | n/a |
| 2014 | n/a |
| 2015 | n/a |
| 2016 | n/a |
| 2017 | n/a |
| 2018 | n/a |
| 2019 | 15 days |
| 2020 | 14 days |
| 2021 | 17 days |
| 2022 | 37 days |
| 2023 | 18 days |
| 2024 | 22 days |
| 2025 | 14 days |
| 2026 | 28 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.
Frost Dates and Growing Season
66 years with a frostAcross 66 years with a frost, the median last spring frost at Hanko Russaro falls on 25 April and the median first autumn frost on 31 October, which leaves a median of 192 days between them.
In 1996 to 2025 the median growing season was 201 days. That is 14 days more than in 1959 to 1989.
Fitted over all years, the growing season changes by +2.8 days per decade at this station.
| Measure | Median, all years | Earliest period (1959 to 1989) | Recent period (1996 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 25 April | 28 April | 23 April | 5 days earlier | -1.1 days per decade |
| First autumn frost | 31 October | 30 October | 5 November | 6 days later | +1.7 days per decade |
| Growing days | 192 days | 187 days | 201 days | 14 days more | +2.8 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
52 years, 1959 to 2025A day with at least 27.8 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 59.9 mm (2.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 27.8 mm (1.1 in) | |
| 5 years | 37.6 mm (1.5 in) | |
| 10 years | 43.6 mm (1.7 in) | |
| 25 years | 50.6 mm (2.0 in) | |
| 50 years | 55.4 mm (2.2 in) | |
| 100 years | 59.9 mm (2.4 in) | Longer than the 52 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, 52 years of values from 1959 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: 49.2 mm (1.9 in) in 1988; 48.2 mm (1.9 in) in 1967; 47.8 mm (1.9 in) in 2000.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
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 (2026-10-13).