Hattula Leteensuo Threshold Days by Year (FIE00142756)
12 fixed thresholds counted per year at Hattula Leteensuo (FIE00142756): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Hattula Leteensuo Thresholds
- Hattula Leteensuo: nights with a minimum temperature at or below 0 C (32 F) in 44 years, most in 1976 with 203.
- Hattula Leteensuo: nights with a minimum temperature at or below -10 C (14 F) in 44 years, most in 1963 with 92.
- Hattula Leteensuo: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1981 with 21.
- Hattula Leteensuo: days with a maximum temperature at or below 0 C (32 F) in 43 years, most in 1963 with 108.
- 12 fixed thresholds have at least one qualifying day at Hattula Leteensuo.
Days at or above 30 C (86 F)
15 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1963 | 1 | 1 |
| 1964 | 1 | 1 |
| 1966 | 1 | 1 |
| 1968 | 1 | 1 |
| 1969 | 1 | 1 |
| 1972 | 1 | 2 |
| 1975 | 1 | 2 |
| 1977 | 4 | 2 |
| 1980 | 1 | 2 |
| 1988 | 4 | 2 |
| 1989 | 1 | 2 |
| 1992 | 1 | 3.8 |
| 1994 | 8 | 3.8 |
| 1995 | 1 | 3.8 |
| 1999 | 5 | 3.8 |
| Year | First date | Last date |
|---|---|---|
| 1963 | 1963-08-01 | 1963-08-01 |
| 1964 | 1964-06-15 | 1964-06-15 |
| 1966 | 1966-06-19 | 1966-06-19 |
| 1968 | 1968-07-03 | 1968-07-03 |
| 1969 | 1969-07-31 | 1969-07-31 |
| 1972 | 1972-06-28 | 1972-06-28 |
| 1975 | 1975-08-08 | 1975-08-08 |
| 1977 | 1977-06-12 | 1977-06-15 |
| 1980 | 1980-07-31 | 1980-07-31 |
| 1988 | 1988-06-27 | 1988-07-18 |
| 1989 | 1989-07-08 | 1989-07-08 |
| 1992 | 1992-08-11 | 1992-08-11 |
| 1994 | 1994-07-13 | 1994-07-30 |
| 1995 | 1995-06-03 | 1995-06-03 |
| 1999 | 1999-06-14 | 1999-08-04 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 15 | 8 | 1994 | 5 |
| 90 F (32.2 C): Days | 1 | 4 | 1994 | 4 |
| 0 C (32 F): Ice days (max | 43 | 108 | 1963 | 76 |
| 0 C (32 F): Frost days (min | 44 | 203 | 1976 | 184 |
| -10 C (14 F): Days with min | 44 | 92 | 1963 | 52 |
| -20 C (-4 F): Days with min | 43 | 45 | 1985 | 13 |
| -30 C (-22 F): Days with min | 25 | 15 | 1985 | 3 |
| -40 C (-40 F): Days with min | 1 | 1 | 1966 | 1 |
| 20 C (68 F): Tropical nights (min | 1 | 1 | 1960 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 44 | 21 | 1981 | 10 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 30 | 3 | 1962 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 1 | 1 | 1996 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.
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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).