Iron River Threshold Days by Year (CA003083480)
15 fixed thresholds counted per year at Iron River (CA003083480): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Iron River Thresholds
- Iron River: days with a maximum temperature at or below 0 C (32 F) in 41 years, most in 1951 with 147.
- Iron River: nights with a minimum temperature at or below 0 C (32 F) in 41 years, most in 1928 with 240.
- Iron River: nights with a minimum temperature at or below -10 C (14 F) in 41 years, most in 1951 with 142.
- Iron River: nights with a minimum temperature at or below -20 C (-4 F) in 41 years, most in 1927 with 98.
- 15 fixed thresholds have at least one qualifying day at Iron River.
Days at or above 30 C (86 F)
36 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1926 | 5 | 3.7 |
| 1927 | 3 | 3.7 |
| 1928 | 3 | 3.7 |
| 1932 | 4 | 5.8 |
| 1933 | 5 | 5.8 |
| 1936 | 6 | 5.8 |
| 1937 | 8 | 5.8 |
| 1938 | 5 | 5.8 |
| 1939 | 7 | 5.8 |
| 1940 | 4 | 5.7 |
| 1941 | 9 | 5.7 |
| 1942 | 5 | 5.7 |
| 1946 | 3 | 5.7 |
| 1947 | 2 | 5.7 |
| 1948 | 4 | 5.7 |
| 1949 | 13 | 5.7 |
| 1950 | 12 | 3.9 |
| 1951 | 2 | 3.9 |
| 1953 | 2 | 3.9 |
| 1954 | 4 | 3.9 |
| 1955 | 5 | 3.9 |
| 1956 | 2 | 3.9 |
| 1957 | 1 | 3.9 |
| 1958 | 6 | 3.9 |
| 1959 | 1 | 3.9 |
| 1962 | 1 | 2.9 |
| 1963 | 3 | 2.9 |
| 1964 | 5 | 2.9 |
| 1965 | 6 | 2.9 |
| 1967 | 3 | 2.9 |
| 1968 | 1 | 2.9 |
| 1969 | 1 | 2.9 |
| 1970 | 8 | 4.5 |
| 1971 | 4 | 4.5 |
| 1972 | 3 | 4.5 |
| 1974 | 3 | 4.5 |
| Year | First date | Last date |
|---|---|---|
| 1926 | 1926-06-26 | 1926-07-24 |
| 1927 | 1927-07-24 | 1927-08-04 |
| 1928 | 1928-05-21 | 1928-08-10 |
| 1932 | 1932-05-30 | 1932-08-09 |
| 1933 | 1933-06-14 | 1933-08-28 |
| 1936 | 1936-05-26 | 1936-06-24 |
| 1937 | 1937-06-13 | 1937-09-18 |
| 1938 | 1938-06-19 | 1938-09-04 |
| 1939 | 1939-04-29 | 1939-08-14 |
| 1940 | 1940-08-08 | 1940-08-31 |
| 1941 | 1941-07-04 | 1941-08-12 |
| 1942 | 1942-07-22 | 1942-08-10 |
| 1946 | 1946-07-21 | 1946-07-30 |
| 1947 | 1947-07-06 | 1947-07-15 |
| 1948 | 1948-05-22 | 1948-08-18 |
| 1949 | 1949-07-13 | 1949-09-08 |
| 1950 | 1950-06-11 | 1950-09-22 |
| 1951 | 1951-05-23 | 1951-06-15 |
| 1953 | 1953-06-12 | 1953-07-13 |
| 1954 | 1954-07-07 | 1954-07-18 |
| 1955 | 1955-07-13 | 1955-08-07 |
| 1956 | 1956-06-09 | 1956-06-20 |
| 1957 | 1957-05-06 | 1957-05-06 |
| 1958 | 1958-07-18 | 1958-08-25 |
| 1959 | 1959-05-16 | 1959-05-16 |
| 1962 | 1962-06-25 | 1962-06-25 |
| 1963 | 1963-07-07 | 1963-08-09 |
| 1964 | 1964-07-07 | 1964-07-13 |
| 1965 | 1965-06-11 | 1965-08-22 |
| 1967 | 1967-08-11 | 1967-09-01 |
| 1968 | 1968-07-05 | 1968-07-05 |
| 1969 | 1969-07-10 | 1969-07-10 |
| 1970 | 1970-06-02 | 1970-08-08 |
| 1971 | 1971-05-13 | 1971-08-21 |
| 1972 | 1972-05-30 | 1972-08-25 |
| 1974 | 1974-06-24 | 1974-07-19 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 36 | 13 | 1949 | 3 |
| 35 C (95 F): Days | 4 | 1 | 1937 | 1 |
| 90 F (32.2 C): Days | 13 | 4 | 1936 | 4 |
| 0 C (32 F): Ice days (max | 41 | 147 | 1951 | 113 |
| 0 C (32 F): Frost days (min | 41 | 240 | 1928 | 197 |
| -10 C (14 F): Days with min | 41 | 142 | 1951 | 118 |
| -20 C (-4 F): Days with min | 41 | 98 | 1927 | 51 |
| -30 C (-22 F): Days with min | 41 | 43 | 1950 | 13 |
| -40 C (-40 F): Days with min | 34 | 12 | 1937 | 2 |
| 20 C (68 F): Tropical nights (min | 1 | 1 | 1940 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 38 | 19 | 1954 | 9 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 33 | 6 | 1952 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 9 | 2 | 1970 | 2 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 32 | 5 | 1955 | 4 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 4 | 1 | 1942 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1926.
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).