Virolahti Koivuniemi Threshold Days by Year (FIE00143211)
11 fixed thresholds counted per year at Virolahti Koivuniemi (FIE00143211): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Virolahti Koivuniemi Thresholds
- Virolahti Koivuniemi: days with a maximum temperature at or below 0 C (32 F) in 50 years, most in 2010 with 107.
- Virolahti Koivuniemi: nights with a minimum temperature at or below 0 C (32 F) in 50 years, most in 2002 with 198.
- Virolahti Koivuniemi: nights with a minimum temperature at or below -10 C (14 F) in 50 years, most in 2010 with 88.
- Virolahti Koivuniemi: days with 10 mm (0.39 in) or more of precipitation in 50 years, most in 1981 with 29.
- 11 fixed thresholds have at least one qualifying day at Virolahti Koivuniemi.
Days at or above 30 C (86 F)
13 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1983 | 1 | 1 |
| 1994 | 1 | 2 |
| 1999 | 3 | 2 |
| 2003 | 3 | 3 |
| 2010 | 8 | 2.8 |
| 2013 | 1 | 2.8 |
| 2014 | 1 | 2.8 |
| 2018 | 2 | 2.8 |
| 2019 | 2 | 2.8 |
| 2021 | 7 | 2.8 |
| 2023 | 1 | 2.8 |
| 2025 | 2 | 2.8 |
| 2026 | 1 | 2.8 |
| Year | First date | Last date |
|---|---|---|
| 1983 | 1983-07-10 | 1983-07-10 |
| 1994 | 1994-07-29 | 1994-07-29 |
| 1999 | 1999-06-25 | 1999-07-14 |
| 2003 | 2003-07-15 | 2003-07-31 |
| 2010 | 2010-07-13 | 2010-08-08 |
| 2013 | 2013-06-26 | 2013-06-26 |
| 2014 | 2014-07-26 | 2014-07-26 |
| 2018 | 2018-07-16 | 2018-07-17 |
| 2019 | 2019-07-27 | 2019-07-28 |
| 2021 | 2021-06-22 | 2021-07-16 |
| 2023 | 2023-08-07 | 2023-08-07 |
| 2025 | 2025-07-25 | 2025-07-30 |
| 2026 | 2026-07-12 | 2026-07-12 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 13 | 8 | 2010 | 1 |
| 90 F (32.2 C): Days | 1 | 1 | 1994 | 1 |
| 0 C (32 F): Ice days (max | 50 | 107 | 2010 | 54 |
| 0 C (32 F): Frost days (min | 50 | 198 | 2002 | 107 |
| -10 C (14 F): Days with min | 50 | 88 | 2010 | 41 |
| -20 C (-4 F): Days with min | 48 | 38 | 1985 | 15 |
| -30 C (-22 F): Days with min | 16 | 10 | 1987 | 2 |
| 20 C (68 F): Tropical nights (min | 8 | 2 | 1988 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 50 | 29 | 1981 | 12 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 39 | 6 | 1983 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 6 | 1 | 1978 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1983.
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 (2026-10-17).