Jamsa Halli Lentokentta Weather Records (FIE00143586)
Record envelope, standing records and threshold days for Jamsa Halli Lentokentta (FIE00143586), Finland, with 63 years of record.
Key Facts for Jamsa Halli Lentokentta
- Jamsa Halli Lentokentta (FIE00143586) is a weather station in Finland at 61.86 latitude and 24.79 longitude, 145 m (476 ft) above sea level.
- The station reports from 1964 to 2026, 63 years of record.
- 1,464 records set at Jamsa Halli Lentokentta still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Jamsa Halli Lentokentta set a daily record low minimum temperature of 4.1 C (39.4 F) on 22 July 2026.
About the Station
- Location: Finland, 61.86 latitude, 24.79 longitude.
- Elevation: 145 m (476 ft).
- Period of record: 1964 to 2026, 63 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
2 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 8.8 C (47.8 F) | -39.0 C (-38.2 F) | 0.7 C (33.3 F) | -26.6 C (-15.9 F) |
| Feb | 8.4 C (47.1 F) | -40.5 C (-40.9 F) | 3.4 C (38.1 F) | -30.2 C (-22.4 F) |
| Mar | 16.5 C (61.7 F) | -29.2 C (-20.6 F) | 11.4 C (52.5 F) | -5.8 C (21.6 F) |
| Apr | 23.7 C (74.7 F) | -16.8 C (1.8 F) | 16.3 C (61.3 F) | -7.5 C (18.5 F) |
| May | 29.2 C (84.6 F) | -8.2 C (17.2 F) | 24.8 C (76.6 F) | -4.4 C (24.1 F) |
| Jun | 33.4 C (92.1 F) | -1.7 C (28.9 F) | 26.7 C (80.1 F) | 6.9 C (44.4 F) |
| Jul | 33.1 C (91.6 F) | 1.5 C (34.7 F) | 28.6 C (83.5 F) | 4.1 C (39.4 F) |
| Aug | 31.6 C (88.9 F) | -1.7 C (28.9 F) | 23.7 C (74.7 F) | 6.4 C (43.5 F) |
| Sep | 26.4 C (79.5 F) | -7.1 C (19.2 F) | n/a | n/a |
| Oct | 18.2 C (64.8 F) | -17.6 C (0.3 F) | n/a | n/a |
| Nov | 12.5 C (54.5 F) | -25.8 C (-14.4 F) | n/a | n/a |
| Dec | 9.8 C (49.6 F) | -35.3 C (-31.5 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1964 | 5 |
| 1965 | 26 |
| 1966 | 31 |
| 1967 | 25 |
| 1968 | 31 |
| 1969 | 20 |
| 1970 | 7 |
| 1971 | 18 |
| 1972 | 18 |
| 1973 | 32 |
| 1974 | 9 |
| 1975 | 25 |
| 1976 | 23 |
| 1977 | 45 |
| 1978 | 39 |
| 1979 | 18 |
| 1980 | 18 |
| 1981 | 25 |
| 1982 | 17 |
| 1983 | 18 |
| 1984 | 19 |
| 1985 | 25 |
| 1986 | 16 |
| 1987 | 44 |
| 1988 | 22 |
| 1989 | 21 |
| 1990 | 31 |
| 1991 | 7 |
| 1992 | 34 |
| 1993 | 18 |
| 1994 | 23 |
| 1995 | 20 |
| 1996 | 14 |
| 1997 | 16 |
| 1998 | 20 |
| 1999 | 33 |
| 2000 | 19 |
| 2001 | 20 |
| 2002 | 30 |
| 2003 | 22 |
| 2004 | 11 |
| 2005 | 15 |
| 2006 | 40 |
| 2007 | 26 |
| 2008 | 15 |
| 2009 | 15 |
| 2010 | 30 |
| 2011 | 20 |
| 2012 | 14 |
| 2013 | 21 |
| 2014 | 32 |
| 2015 | 30 |
| 2016 | 12 |
| 2017 | 11 |
| 2018 | 28 |
| 2019 | 28 |
| 2020 | 42 |
| 2021 | 30 |
| 2022 | 27 |
| 2023 | 22 |
| 2024 | 38 |
| 2025 | 46 |
| 2026 | 7 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1994-07-28 | Record high maximum temperature | Record high maximum temperature 32.0 C (89.6 F) |
| 2010-07-27 | Record high minimum temperature | Record high minimum temperature 22.0 C (71.6 F) |
| 2010-07-29 | Record high maximum temperature | Record high maximum temperature 33.1 C (91.6 F) |
| 2021-06-22 | Record high maximum temperature | Record high maximum temperature 33.4 C (92.1 F) |
Wettest Day of Each Month
Aug: 56.8 mm (2.2 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 21.2 mm (0.8 in) | 25 January 2002 |
| Feb | 17.5 mm (0.7 in) | 4 February 1999 |
| Mar | 16.7 mm (0.7 in) | 3 March 2000 |
| Apr | 21.5 mm (0.8 in) | 29 April 1989 |
| May | 30.7 mm (1.2 in) | 13 May 2002 |
| Jun | 39.8 mm (1.6 in) | 13 June 1981 |
| Jul | 44.5 mm (1.8 in) | 6 July 1996 |
| Aug | 56.8 mm (2.2 in) | 12 August 1972 |
| Sep | 46.0 mm (1.8 in) | 10 September 2001 |
| Oct | 30.5 mm (1.2 in) | 7 October 2003 |
| Nov | 35.2 mm (1.4 in) | 5 November 2000 |
| Dec | 21.8 mm (0.9 in) | 6 December 1999 |
Period of Record Coverage
1964 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1964 | 244 | 67% | No |
| 1965 | 305 | 84% | No |
| 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 | 365 | 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 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 364 | 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 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 358 | 98% | Yes |
| 2010 | 359 | 98% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 353 | 96% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 365 | 100% | Yes |
| 2017 | 353 | 97% | Yes |
| 2018 | 349 | 96% | Yes |
| 2019 | 338 | 93% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 364 | 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 |
|---|---|---|---|---|---|---|
| 22 July 2026 | Jamsa Halli Lentokentta, FI | daily low min | 4.1 C (39.4 F) | 0.9 C (1.6 F) | 29 years | 16 of 100 (Routine) |
| 18 July 2026 | Jamsa Halli Lentokentta, FI | daily rain | 37.6 mm (1.5 in) | 4.8 mm (0.19 in) | 52 years | 28 of 100 (Routine) |
| 11 June 2026 | Jamsa Halli Lentokentta, FI | daily rain | 14.5 mm (0.6 in) | 4.6 mm (0.18 in) | 21 years | 20 of 100 (Routine) |
| 6 June 2026 | Jamsa Halli Lentokentta, FI | daily high min (Tie) | 15.1 C (59.2 F) | tie | 7 years | 2 of 100 (Routine) |
| 22 March 2026 | Jamsa Halli Lentokentta, FI | daily high max | 11.4 C (52.5 F) | 3.6 C (6.5 F) | 15 years | 18 of 100 (Routine) |
| 19 March 2026 | Jamsa Halli Lentokentta, FI | daily high min | 2.5 C (36.5 F) | 0.2 C (0.4 F) | 36 years | 16 of 100 (Routine) |
| 15 March 2026 | Jamsa Halli Lentokentta, FI | monthly high min | 4.0 C (39.2 F) | 0.3 C (0.5 F) | 0 years | 16 of 100 (Routine) |
| 14 March 2026 | Jamsa Halli Lentokentta, FI | daily high min | 3.3 C (37.9 F) | 2.0 C (3.6 F) | 32 years | 17 of 100 (Routine) |
| 12 March 2026 | Jamsa Halli Lentokentta, FI | daily high min | 2.4 C (36.3 F) | 0.4 C (0.7 F) | 28 years | 14 of 100 (Routine) |
| 28 February 2026 | Jamsa Halli Lentokentta, FI | daily high min | 0.8 C (33.4 F) | 0.3 C (0.5 F) | 36 years | 17 of 100 (Routine) |
| 26 February 2026 | Jamsa Halli Lentokentta, FI | daily rain | 9.1 mm (0.36 in) | 3.5 mm (0.14 in) | 18 years | 20 of 100 (Routine) |
| 25 December 2025 | Jamsa Halli Lentokentta, FI | daily high max | 5.8 C (42.4 F) | 0.3 C (0.5 F) | 10 years | 9 of 100 (Routine) |
| 20 December 2025 | Jamsa Halli Lentokentta, FI | daily high min | 4.4 C (39.9 F) | 2.8 C (5.0 F) | 18 years | 14 of 100 (Routine) |
| 19 December 2025 | Jamsa Halli Lentokentta, FI | daily high min | 2.7 C (36.9 F) | 2.4 C (4.3 F) | 16 years | 14 of 100 (Routine) |
| 19 December 2025 | Jamsa Halli Lentokentta, FI | daily high max | 6.2 C (43.2 F) | 1.6 C (2.9 F) | 10 years | 11 of 100 (Routine) |
| 18 December 2025 | Jamsa Halli Lentokentta, FI | daily high max | 5.9 C (42.6 F) | 2.4 C (4.3 F) | 27 years | 18 of 100 (Routine) |
| 17 December 2025 | Jamsa Halli Lentokentta, FI | daily high min | 3.7 C (38.7 F) | 1.1 C (2.0 F) | 32 years | 16 of 100 (Routine) |
| 16 December 2025 | Jamsa Halli Lentokentta, FI | daily high max | 5.4 C (41.7 F) | 1.1 C (2.0 F) | 32 years | 16 of 100 (Routine) |
| 16 December 2025 | Jamsa Halli Lentokentta, FI | daily high min | 1.9 C (35.4 F) | 0.4 C (0.7 F) | 32 years | 15 of 100 (Routine) |
| 29 November 2025 | Jamsa Halli Lentokentta, FI | daily high max | 6.8 C (44.2 F) | 0.1 C (0.2 F) | 26 years | 13 of 100 (Routine) |
Climate Trend
59 complete years, 1966 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1966 | 1.8 C | -2.07 C |
| 1967 | 3.5 C | -0.36 C |
| 1968 | 2.5 C | -1.38 C |
| 1969 | 2.1 C | -1.81 C |
| 1970 | 2.6 C | -1.31 C |
| 1971 | 3.0 C | -0.85 C |
| 1972 | 4.3 C | +0.46 C |
| 1973 | 3.3 C | -0.55 C |
| 1974 | 4.7 C | +0.82 C |
| 1975 | 4.6 C | +0.77 C |
| 1976 | 1.6 C | -2.31 C |
| 1977 | 2.7 C | -1.21 C |
| 1978 | 1.5 C | -2.36 C |
| 1979 | 3.1 C | -0.79 C |
| 1980 | 2.5 C | -1.34 C |
| 1981 | 2.8 C | -1.07 C |
| 1982 | 3.4 C | -0.48 C |
| 1983 | 3.9 C | +0.01 C |
| 1984 | 4.0 C | +0.14 C |
| 1985 | 1.2 C | -2.67 C |
| 1986 | 2.8 C | -1.07 C |
| 1987 | 1.3 C | -2.59 C |
| 1988 | 3.7 C | -0.20 C |
| 1989 | 5.4 C | +1.51 C |
| 1990 | 4.5 C | +0.65 C |
| 1991 | 4.1 C | +0.20 C |
| 1992 | 4.2 C | +0.31 C |
| 1993 | 3.6 C | -0.26 C |
| 1994 | 3.2 C | -0.63 C |
| 1995 | 4.1 C | +0.24 C |
| 1996 | 3.1 C | -0.72 C |
| 1997 | 4.1 C | +0.22 C |
| 1998 | 3.4 C | -0.43 C |
| 1999 | 4.1 C | +0.20 C |
| 2000 | 5.3 C | +1.47 C |
| 2001 | 3.7 C | -0.20 C |
| 2002 | 4.0 C | +0.09 C |
| 2003 | 3.8 C | -0.03 C |
| 2004 | 4.0 C | +0.15 C |
| 2005 | 4.7 C | +0.85 C |
| 2006 | 4.8 C | +0.93 C |
| 2007 | 4.9 C | +0.99 C |
| 2008 | 5.3 C | +1.44 C |
| 2009 | 4.1 C | +0.25 C |
| 2010 | 2.5 C | -1.36 C |
| 2011 | 5.1 C | +1.20 C |
| 2012 | 3.4 C | -0.43 C |
| 2013 | 5.0 C | +1.12 C |
| 2014 | 5.3 C | +1.47 C |
| 2015 | 5.8 C | +1.92 C |
| 2016 | 4.5 C | +0.64 C |
| 2017 | 4.4 C | +0.57 C |
| 2018 | 4.9 C | +1.01 C |
| 2020 | 6.5 C | +2.68 C |
| 2021 | 4.2 C | +0.38 C |
| 2022 | 5.1 C | +1.19 C |
| 2023 | 4.6 C | +0.72 C |
| 2024 | 5.4 C | +1.53 C |
| 2025 | 6.2 C | +2.33 C |
The annual mean temperature here has risen by 0.5 C (0.3 to 0.6) per decade over 1966 to 2025. In Fahrenheit: 0.8 F (0.6 to 1.1) per decade. The slope is a straight line fitted to 59 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.5 C (0.3 to 0.6) per decade | 0.8 F (0.6 to 1.1) per decade | 1966 to 2025 | 59 | Rise |
| Mean daily maximum | 0.5 C (0.3 to 0.6) per decade | 0.8 F (0.6 to 1.1) per decade | 1966 to 2025 | 59 | Rise |
| Mean daily minimum | 0.5 C (0.3 to 0.6) per decade | 0.8 F (0.6 to 1.1) per decade | 1966 to 2025 | 59 | 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
1964 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 33.4 C (92.1 F) | 2021 | 29.2 C (84.6 F) | 63 |
| Coldest night (TNn) | -40.5 C (-40.9 F) | 1966 | -30.2 C (-22.4 F) | 63 |
| Wettest day (Rx1day) | 56.8 mm (2.2 in) | 1972 | 29.4 mm (1.2 in) | 47 |
| Wettest five days (Rx5day) | 102.3 mm (4.0 in) | 1972 | 51.8 mm (2.0 in) | 47 |
| Longest dry spell (CDD) | 41 days | 1969 | 23 days | 47 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1964 | 29.8 C (85.6 F) |
| 1965 | 26.8 C (80.2 F) |
| 1966 | 29.7 C (85.5 F) |
| 1967 | 29.2 C (84.6 F) |
| 1968 | 29.5 C (85.1 F) |
| 1969 | 29.0 C (84.2 F) |
| 1970 | 27.4 C (81.3 F) |
| 1971 | 28.1 C (82.6 F) |
| 1972 | 30.8 C (87.4 F) |
| 1973 | 29.1 C (84.4 F) |
| 1974 | 26.5 C (79.7 F) |
| 1975 | 27.7 C (81.9 F) |
| 1976 | 25.2 C (77.4 F) |
| 1977 | 30.3 C (86.5 F) |
| 1978 | 28.5 C (83.3 F) |
| 1979 | 28.6 C (83.5 F) |
| 1980 | 29.3 C (84.7 F) |
| 1981 | 27.1 C (80.8 F) |
| 1982 | 28.5 C (83.3 F) |
| 1983 | 28.6 C (83.5 F) |
| 1984 | 27.5 C (81.5 F) |
| 1985 | 27.2 C (81.0 F) |
| 1986 | 29.2 C (84.6 F) |
| 1987 | 28.1 C (82.6 F) |
| 1988 | 31.5 C (88.7 F) |
| 1989 | 29.7 C (85.5 F) |
| 1990 | 25.8 C (78.4 F) |
| 1991 | 27.5 C (81.5 F) |
| 1992 | 30.3 C (86.5 F) |
| 1993 | 26.5 C (79.7 F) |
| 1994 | 32.0 C (89.6 F) |
| 1995 | 29.4 C (84.9 F) |
| 1996 | 26.6 C (79.9 F) |
| 1997 | 29.5 C (85.1 F) |
| 1998 | 28.0 C (82.4 F) |
| 1999 | 30.8 C (87.4 F) |
| 2000 | 29.6 C (85.3 F) |
| 2001 | 30.0 C (86.0 F) |
| 2002 | 28.9 C (84.0 F) |
| 2003 | 31.5 C (88.7 F) |
| 2004 | 27.8 C (82.0 F) |
| 2005 | 29.3 C (84.7 F) |
| 2006 | 31.1 C (88.0 F) |
| 2007 | 28.0 C (82.4 F) |
| 2008 | 27.9 C (82.2 F) |
| 2009 | 28.5 C (83.3 F) |
| 2010 | 33.1 C (91.6 F) |
| 2011 | 30.7 C (87.3 F) |
| 2012 | 27.4 C (81.3 F) |
| 2013 | 29.7 C (85.5 F) |
| 2014 | 30.9 C (87.6 F) |
| 2015 | 29.7 C (85.5 F) |
| 2016 | 26.7 C (80.1 F) |
| 2017 | 25.2 C (77.4 F) |
| 2018 | 31.6 C (88.9 F) |
| 2019 | 31.7 C (89.1 F) |
| 2020 | 31.7 C (89.1 F) |
| 2021 | 33.4 C (92.1 F) |
| 2022 | 30.5 C (86.9 F) |
| 2023 | 30.1 C (86.2 F) |
| 2024 | 30.2 C (86.4 F) |
| 2025 | 31.2 C (88.2 F) |
| 2026 | 28.6 C (83.5 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1964 | -18.7 C (-1.7 F) |
| 1965 | -30.6 C (-23.1 F) |
| 1966 | -40.5 C (-40.9 F) |
| 1967 | -35.3 C (-31.5 F) |
| 1968 | -36.9 C (-34.4 F) |
| 1969 | -31.2 C (-24.2 F) |
| 1970 | -32.6 C (-26.7 F) |
| 1971 | -28.2 C (-18.8 F) |
| 1972 | -29.8 C (-21.6 F) |
| 1973 | -30.8 C (-23.4 F) |
| 1974 | -18.4 C (-1.1 F) |
| 1975 | -28.8 C (-19.8 F) |
| 1976 | -32.3 C (-26.1 F) |
| 1977 | -32.8 C (-27.0 F) |
| 1978 | -35.3 C (-31.5 F) |
| 1979 | -35.5 C (-31.9 F) |
| 1980 | -31.4 C (-24.5 F) |
| 1981 | -29.2 C (-20.6 F) |
| 1982 | -33.4 C (-28.1 F) |
| 1983 | -28.7 C (-19.7 F) |
| 1984 | -23.5 C (-10.3 F) |
| 1985 | -35.5 C (-31.9 F) |
| 1986 | -31.7 C (-25.1 F) |
| 1987 | -39.0 C (-38.2 F) |
| 1988 | -26.4 C (-15.5 F) |
| 1989 | -27.2 C (-17.0 F) |
| 1990 | -25.1 C (-13.2 F) |
| 1991 | -27.4 C (-17.3 F) |
| 1992 | -24.4 C (-11.9 F) |
| 1993 | -27.4 C (-17.3 F) |
| 1994 | -33.4 C (-28.1 F) |
| 1995 | -32.8 C (-27.0 F) |
| 1996 | -32.0 C (-25.6 F) |
| 1997 | -26.0 C (-14.8 F) |
| 1998 | -30.4 C (-22.7 F) |
| 1999 | -32.7 C (-26.9 F) |
| 2000 | -26.0 C (-14.8 F) |
| 2001 | -33.1 C (-27.6 F) |
| 2002 | -34.1 C (-29.4 F) |
| 2003 | -36.4 C (-33.5 F) |
| 2004 | -27.7 C (-17.9 F) |
| 2005 | -25.6 C (-14.1 F) |
| 2006 | -31.3 C (-24.3 F) |
| 2007 | -35.1 C (-31.2 F) |
| 2008 | -20.1 C (-4.2 F) |
| 2009 | -24.7 C (-12.5 F) |
| 2010 | -31.1 C (-24.0 F) |
| 2011 | -34.1 C (-29.4 F) |
| 2012 | -32.9 C (-27.2 F) |
| 2013 | -30.2 C (-22.4 F) |
| 2014 | -27.0 C (-16.6 F) |
| 2015 | -23.8 C (-10.8 F) |
| 2016 | -31.5 C (-24.7 F) |
| 2017 | -25.6 C (-14.1 F) |
| 2018 | -28.9 C (-20.0 F) |
| 2019 | -28.6 C (-19.5 F) |
| 2020 | -15.9 C (3.4 F) |
| 2021 | -29.6 C (-21.3 F) |
| 2022 | -26.2 C (-15.2 F) |
| 2023 | -23.2 C (-9.8 F) |
| 2024 | -31.9 C (-25.4 F) |
| 2025 | -22.5 C (-8.5 F) |
| 2026 | -30.2 C (-22.4 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1964 | 11.3 mm (0.4 in) |
| 1965 | 17.8 mm (0.7 in) |
| 1966 | 25.6 mm (1.0 in) |
| 1967 | 15.0 mm (0.6 in) |
| 1968 | 22.6 mm (0.9 in) |
| 1969 | 28.3 mm (1.1 in) |
| 1970 | 27.8 mm (1.1 in) |
| 1971 | 21.3 mm (0.8 in) |
| 1972 | 56.8 mm (2.2 in) |
| 1973 | 24.0 mm (0.9 in) |
| 1974 | 32.8 mm (1.3 in) |
| 1975 | 27.5 mm (1.1 in) |
| 1976 | 29.5 mm (1.2 in) |
| 1977 | 20.0 mm (0.8 in) |
| 1978 | 23.1 mm (0.9 in) |
| 1979 | 15.4 mm (0.6 in) |
| 1980 | 31.1 mm (1.2 in) |
| 1981 | 39.8 mm (1.6 in) |
| 1982 | 37.8 mm (1.5 in) |
| 1983 | 38.2 mm (1.5 in) |
| 1984 | 22.2 mm (0.9 in) |
| 1985 | 36.7 mm (1.4 in) |
| 1986 | 38.3 mm (1.5 in) |
| 1987 | 45.1 mm (1.8 in) |
| 1988 | 29.4 mm (1.2 in) |
| 1989 | 30.0 mm (1.2 in) |
| 1990 | 49.4 mm (1.9 in) |
| 1991 | 31.8 mm (1.3 in) |
| 1992 | 38.8 mm (1.5 in) |
| 1993 | 22.3 mm (0.9 in) |
| 1994 | 18.0 mm (0.7 in) |
| 1995 | 25.5 mm (1.0 in) |
| 1996 | 44.5 mm (1.8 in) |
| 1997 | 27.7 mm (1.1 in) |
| 1998 | 25.4 mm (1.0 in) |
| 1999 | 23.4 mm (0.9 in) |
| 2000 | 35.2 mm (1.4 in) |
| 2001 | 46.0 mm (1.8 in) |
| 2002 | 32.7 mm (1.3 in) |
| 2003 | 30.5 mm (1.2 in) |
| 2004 | 30.0 mm (1.2 in) |
| 2005 | 38.6 mm (1.5 in) |
| 2006 | 36.5 mm (1.4 in) |
| 2007 | 27.1 mm (1.1 in) |
| 2008 | 29.2 mm (1.1 in) |
| 2009 | 13.5 mm (0.5 in) |
| 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 | n/a |
| 2020 | n/a |
| 2021 | n/a |
| 2022 | n/a |
| 2023 | n/a |
| 2024 | n/a |
| 2025 | n/a |
| 2026 | 37.6 mm (1.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1964 | 22.6 mm (0.9 in) |
| 1965 | 36.2 mm (1.4 in) |
| 1966 | 47.4 mm (1.9 in) |
| 1967 | 33.0 mm (1.3 in) |
| 1968 | 33.9 mm (1.3 in) |
| 1969 | 36.4 mm (1.4 in) |
| 1970 | 43.9 mm (1.7 in) |
| 1971 | 29.6 mm (1.2 in) |
| 1972 | 102.3 mm (4.0 in) |
| 1973 | 42.0 mm (1.7 in) |
| 1974 | 57.0 mm (2.2 in) |
| 1975 | 46.5 mm (1.8 in) |
| 1976 | 40.8 mm (1.6 in) |
| 1977 | 41.2 mm (1.6 in) |
| 1978 | 40.4 mm (1.6 in) |
| 1979 | 35.5 mm (1.4 in) |
| 1980 | 48.3 mm (1.9 in) |
| 1981 | 72.3 mm (2.8 in) |
| 1982 | 49.2 mm (1.9 in) |
| 1983 | 71.5 mm (2.8 in) |
| 1984 | 69.3 mm (2.7 in) |
| 1985 | 57.2 mm (2.3 in) |
| 1986 | 52.6 mm (2.1 in) |
| 1987 | 61.5 mm (2.4 in) |
| 1988 | 45.1 mm (1.8 in) |
| 1989 | 65.8 mm (2.6 in) |
| 1990 | 78.6 mm (3.1 in) |
| 1991 | 49.2 mm (1.9 in) |
| 1992 | 54.8 mm (2.2 in) |
| 1993 | 46.0 mm (1.8 in) |
| 1994 | 39.4 mm (1.6 in) |
| 1995 | 56.2 mm (2.2 in) |
| 1996 | 83.0 mm (3.3 in) |
| 1997 | 44.1 mm (1.7 in) |
| 1998 | 51.8 mm (2.0 in) |
| 1999 | 55.0 mm (2.2 in) |
| 2000 | 56.0 mm (2.2 in) |
| 2001 | 68.9 mm (2.7 in) |
| 2002 | 59.3 mm (2.3 in) |
| 2003 | 72.5 mm (2.9 in) |
| 2004 | 64.5 mm (2.5 in) |
| 2005 | 67.9 mm (2.7 in) |
| 2006 | 53.2 mm (2.1 in) |
| 2007 | 53.0 mm (2.1 in) |
| 2008 | 69.4 mm (2.7 in) |
| 2009 | 25.5 mm (1.0 in) |
| 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 | n/a |
| 2020 | n/a |
| 2021 | n/a |
| 2022 | n/a |
| 2023 | n/a |
| 2024 | n/a |
| 2025 | n/a |
| 2026 | 43.7 mm (1.7 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1964 | 15 days |
| 1965 | 29 days |
| 1966 | 24 days |
| 1967 | 13 days |
| 1968 | 20 days |
| 1969 | 41 days |
| 1970 | 29 days |
| 1971 | 29 days |
| 1972 | 37 days |
| 1973 | 22 days |
| 1974 | 24 days |
| 1975 | 21 days |
| 1976 | 28 days |
| 1977 | 19 days |
| 1978 | 25 days |
| 1979 | 24 days |
| 1980 | 39 days |
| 1981 | 31 days |
| 1982 | 20 days |
| 1983 | 40 days |
| 1984 | 20 days |
| 1985 | 15 days |
| 1986 | 21 days |
| 1987 | 29 days |
| 1988 | 16 days |
| 1989 | 29 days |
| 1990 | 20 days |
| 1991 | 16 days |
| 1992 | 34 days |
| 1993 | 24 days |
| 1994 | 36 days |
| 1995 | 18 days |
| 1996 | 20 days |
| 1997 | 20 days |
| 1998 | 18 days |
| 1999 | 25 days |
| 2000 | 20 days |
| 2001 | 15 days |
| 2002 | 26 days |
| 2003 | 24 days |
| 2004 | 19 days |
| 2005 | 20 days |
| 2006 | 21 days |
| 2007 | 23 days |
| 2008 | 21 days |
| 2009 | 25 days |
| 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 | n/a |
| 2020 | n/a |
| 2021 | n/a |
| 2022 | n/a |
| 2023 | n/a |
| 2024 | n/a |
| 2025 | n/a |
| 2026 | 36 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
59 years with a frostAcross 59 years with a frost, the median last spring frost at Jamsa Halli Lentokentta falls on 25 May and the median first autumn frost on 18 September, which leaves a median of 118 days between them.
Fitted over all years, the growing season changes by +3.9 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1995 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 25 May | n/a | 20 May | n/a | -2.6 days per decade |
| First autumn frost | 18 September | n/a | 20 September | n/a | +1.3 days per decade |
| Growing days | 118 days | n/a | 120 days | n/a | +3.9 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
44 years, 1965 to 2008A day with at least 29.5 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 57.4 mm (2.3 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 29.5 mm (1.2 in) | |
| 5 years | 38.0 mm (1.5 in) | |
| 10 years | 43.1 mm (1.7 in) | |
| 25 years | 49.2 mm (1.9 in) | |
| 50 years | 53.4 mm (2.1 in) | Longer than the 44 years of record |
| 100 years | 57.4 mm (2.3 in) | Longer than the 44 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, 44 years of values from 1965 to 2008.
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: 56.8 mm (2.2 in) in 1972; 49.4 mm (1.9 in) in 1990; 46.0 mm (1.8 in) in 2001.
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).