Riddarhyttan Threshold Days by Year (SWE00139126)
12 fixed thresholds counted per year at Riddarhyttan (SWE00139126): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Riddarhyttan Thresholds
- Riddarhyttan: days with 10 mm (0.39 in) or more of precipitation in 77 years, most in 2000 with 40.
- Riddarhyttan: days with 25 mm (0.98 in) or more of precipitation in 64 years, most in 1951 with 6.
- Riddarhyttan: days with a maximum temperature at or below 0 C (32 F) in 23 years, most in 1947 with 101.
- Riddarhyttan: nights with a minimum temperature at or below 0 C (32 F) in 23 years, most in 1980 with 187.
- 12 fixed thresholds have at least one qualifying day at Riddarhyttan.
Days at or above 30 C (86 F)
13 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1945 | 8 | 5.4 |
| 1946 | 2 | 5.4 |
| 1947 | 11 | 5.4 |
| 1948 | 4 | 5.4 |
| 1949 | 2 | 5.4 |
| 1953 | 3 | 3 |
| 1969 | 2 | 2 |
| 1970 | 3 | 3 |
| 1972 | 1 | 3 |
| 1973 | 3 | 3 |
| 1975 | 7 | 3 |
| 1977 | 1 | 3 |
| 1982 | 5 | 5 |
| Year | First date | Last date |
|---|---|---|
| 1945 | 1945-07-12 | 1945-07-19 |
| 1946 | 1946-07-04 | 1946-07-05 |
| 1947 | 1947-06-18 | 1947-08-16 |
| 1948 | 1948-07-29 | 1948-08-01 |
| 1949 | 1949-07-10 | 1949-07-24 |
| 1953 | 1953-06-26 | 1953-06-30 |
| 1969 | 1969-07-30 | 1969-07-31 |
| 1970 | 1970-06-19 | 1970-06-21 |
| 1972 | 1972-06-29 | 1972-06-29 |
| 1973 | 1973-07-03 | 1973-07-07 |
| 1975 | 1975-08-04 | 1975-08-10 |
| 1977 | 1977-06-15 | 1977-06-15 |
| 1982 | 1982-07-31 | 1982-08-05 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 13 | 11 | 1947 | 5 |
| 35 C (95 F): Days | 1 | 1 | 1945 | 1 |
| 90 F (32.2 C): Days | 6 | 6 | 1947 | 3 |
| 0 C (32 F): Ice days (max | 23 | 101 | 1947 | 58 |
| 0 C (32 F): Frost days (min | 23 | 187 | 1980 | 158 |
| -10 C (14 F): Days with min | 23 | 75 | 1969 | 44 |
| -20 C (-4 F): Days with min | 16 | 19 | 1970 | 7 |
| -30 C (-22 F): Days with min | 1 | 1 | 1970 | 1 |
| 20 C (68 F): Tropical nights (min | 2 | 2 | 1975 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 77 | 40 | 2000 | 12 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 64 | 6 | 1951 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 5 | 2 | 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 (2026-10-12).