Ultuna Threshold Days by Year (SWE00139128)
10 fixed thresholds counted per year at Ultuna (SWE00139128): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Ultuna Thresholds
- Ultuna: days with a maximum temperature at or below 0 C (32 F) in 56 years, most in 1985 with 98.
- Ultuna: nights with a minimum temperature at or below 0 C (32 F) in 56 years, most in 1956 with 184.
- Ultuna: nights with a minimum temperature at or below -10 C (14 F) in 56 years, most in 1985 with 72.
- Ultuna: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 1960 with 22.
- 10 fixed thresholds have at least one qualifying day at Ultuna.
Days at or above 30 C (86 F)
19 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1945 | 4 | 4 |
| 1947 | 6 | 4 |
| 1948 | 2 | 4 |
| 1953 | 1 | 3.7 |
| 1955 | 4 | 3.7 |
| 1959 | 6 | 3.7 |
| 1968 | 1 | 1.5 |
| 1969 | 2 | 1.5 |
| 1970 | 1 | 3 |
| 1973 | 1 | 3 |
| 1975 | 7 | 3 |
| 1982 | 3 | 2.8 |
| 1983 | 4 | 2.8 |
| 1986 | 1 | 2.8 |
| 1989 | 3 | 2.8 |
| 1994 | 6 | 3.3 |
| 1995 | 1 | 3.3 |
| 1999 | 3 | 3.3 |
| 2001 | 6 | 6 |
| Year | First date | Last date |
|---|---|---|
| 1945 | 1945-07-16 | 1945-07-19 |
| 1947 | 1947-06-29 | 1947-08-14 |
| 1948 | 1948-07-31 | 1948-08-01 |
| 1953 | 1953-06-28 | 1953-06-28 |
| 1955 | 1955-07-12 | 1955-07-31 |
| 1959 | 1959-07-06 | 1959-08-23 |
| 1968 | 1968-06-18 | 1968-06-18 |
| 1969 | 1969-07-31 | 1969-08-01 |
| 1970 | 1970-06-20 | 1970-06-20 |
| 1973 | 1973-07-07 | 1973-07-07 |
| 1975 | 1975-08-04 | 1975-08-10 |
| 1982 | 1982-08-03 | 1982-08-08 |
| 1983 | 1983-07-09 | 1983-08-09 |
| 1986 | 1986-06-26 | 1986-06-26 |
| 1989 | 1989-07-05 | 1989-07-08 |
| 1994 | 1994-07-13 | 1994-07-29 |
| 1995 | 1995-08-18 | 1995-08-18 |
| 1999 | 1999-07-11 | 1999-08-03 |
| 2001 | 2001-07-04 | 2001-07-09 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 19 | 7 | 1975 | 6 |
| 90 F (32.2 C): Days | 3 | 3 | 1975 | 3 |
| 0 C (32 F): Ice days (max | 56 | 98 | 1985 | 46 |
| 0 C (32 F): Frost days (min | 56 | 184 | 1956 | 149 |
| -10 C (14 F): Days with min | 56 | 72 | 1985 | 30 |
| -20 C (-4 F): Days with min | 42 | 28 | 1985 | 3 |
| -30 C (-22 F): Days with min | 4 | 4 | 1970 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 56 | 22 | 1960 | 17 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 37 | 4 | 1967 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 4 | 1 | 1951 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.
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).