Untra Threshold Days by Year (SWE00139364)
11 fixed thresholds counted per year at Untra (SWE00139364): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Untra Thresholds
- Untra: days with 10 mm (0.39 in) or more of precipitation in 55 years, most in 1986 with 31.
- Untra: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 1981 with 5.
- Untra: days with a maximum temperature at or below 0 C (32 F) in 19 years, most in 1969 with 98.
- Untra: nights with a minimum temperature at or below 0 C (32 F) in 19 years, most in 1980 with 185.
- 11 fixed thresholds have at least one qualifying day at Untra.
Days at or above 30 C (86 F)
6 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1968 | 3 | 2.5 |
| 1969 | 2 | 2.5 |
| 1973 | 6 | 5 |
| 1975 | 4 | 5 |
| 1982 | 2 | 1.5 |
| 1983 | 1 | 1.5 |
| Year | First date | Last date |
|---|---|---|
| 1968 | 1968-06-15 | 1968-07-02 |
| 1969 | 1969-07-30 | 1969-08-01 |
| 1973 | 1973-06-23 | 1973-07-07 |
| 1975 | 1975-08-05 | 1975-08-10 |
| 1982 | 1982-06-04 | 1982-08-02 |
| 1983 | 1983-07-08 | 1983-07-08 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 6 | 6 | 1973 | 1 |
| 90 F (32.2 C): Days | 2 | 1 | 1975 | 1 |
| 0 C (32 F): Ice days (max | 19 | 98 | 1969 | 67 |
| 0 C (32 F): Frost days (min | 19 | 185 | 1980 | 157 |
| -10 C (14 F): Days with min | 19 | 63 | 1969 | 30 |
| -20 C (-4 F): Days with min | 17 | 17 | 1966 | 2 |
| -30 C (-22 F): Days with min | 4 | 2 | 1979 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 55 | 31 | 1986 | 21 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 43 | 5 | 1981 | 4 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 10 | 2 | 1981 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1981 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.
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).