Thetford Mines Threshold Days by Year (CA007028440)
17 fixed thresholds counted per year at Thetford Mines (CA007028440): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Thetford Mines Thresholds
- Thetford Mines: days with a maximum temperature at or below 0 C (32 F) in 39 years, most in 1939 with 121.
- Thetford Mines: nights with a minimum temperature at or below 0 C (32 F) in 39 years, most in 1936 with 222.
- Thetford Mines: nights with a minimum temperature at or below -10 C (14 F) in 39 years, most in 1924 with 109.
- Thetford Mines: nights with a minimum temperature at or below -20 C (-4 F) in 39 years, most in 1934 with 64.
- 17 fixed thresholds have at least one qualifying day at Thetford Mines.
Days at or above 30 C (86 F)
34 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1923 | 2 | 15.3 |
| 1928 | 16 | 15.3 |
| 1929 | 28 | 15.3 |
| 1930 | 14 | 6 |
| 1931 | 6 | 6 |
| 1932 | 2 | 6 |
| 1933 | 8 | 6 |
| 1934 | 2 | 6 |
| 1935 | 6 | 6 |
| 1936 | 2 | 6 |
| 1937 | 8 | 6 |
| 1938 | 7 | 6 |
| 1939 | 5 | 6 |
| 1940 | 1 | 5.5 |
| 1941 | 4 | 5.5 |
| 1942 | 4 | 5.5 |
| 1943 | 4 | 5.5 |
| 1944 | 13 | 5.5 |
| 1945 | 2 | 5.5 |
| 1946 | 4 | 5.5 |
| 1947 | 8 | 5.5 |
| 1948 | 4 | 5.5 |
| 1949 | 11 | 5.5 |
| 1951 | 1 | 5.1 |
| 1952 | 8 | 5.1 |
| 1953 | 4 | 5.1 |
| 1955 | 12 | 5.1 |
| 1956 | 1 | 5.1 |
| 1957 | 3 | 5.1 |
| 1959 | 7 | 5.1 |
| 1960 | 1 | 3.5 |
| 1961 | 3 | 3.5 |
| 1963 | 7 | 3.5 |
| 1964 | 3 | 3.5 |
| Year | First date | Last date |
|---|---|---|
| 1923 | 1923-06-19 | 1923-06-20 |
| 1928 | 1928-06-08 | 1928-08-14 |
| 1929 | 1929-05-28 | 1929-07-28 |
| 1930 | 1930-05-23 | 1930-07-23 |
| 1931 | 1931-06-14 | 1931-07-28 |
| 1932 | 1932-05-16 | 1932-08-26 |
| 1933 | 1933-06-09 | 1933-07-23 |
| 1934 | 1934-06-05 | 1934-07-15 |
| 1935 | 1935-07-09 | 1935-08-20 |
| 1936 | 1936-06-09 | 1936-06-10 |
| 1937 | 1937-05-31 | 1937-08-16 |
| 1938 | 1938-06-21 | 1938-08-17 |
| 1939 | 1939-06-11 | 1939-09-16 |
| 1940 | 1940-08-18 | 1940-08-18 |
| 1941 | 1941-06-21 | 1941-07-24 |
| 1942 | 1942-06-11 | 1942-06-30 |
| 1943 | 1943-07-11 | 1943-07-15 |
| 1944 | 1944-06-28 | 1944-08-16 |
| 1945 | 1945-07-25 | 1945-09-07 |
| 1946 | 1946-06-29 | 1946-07-11 |
| 1947 | 1947-06-11 | 1947-08-25 |
| 1948 | 1948-06-29 | 1948-08-27 |
| 1949 | 1949-06-13 | 1949-07-29 |
| 1951 | 1951-06-20 | 1951-06-20 |
| 1952 | 1952-07-07 | 1952-08-28 |
| 1953 | 1953-07-17 | 1953-09-05 |
| 1955 | 1955-06-18 | 1955-08-04 |
| 1956 | 1956-06-14 | 1956-06-14 |
| 1957 | 1957-06-17 | 1957-07-19 |
| 1959 | 1959-07-18 | 1959-08-17 |
| 1960 | 1960-08-19 | 1960-08-19 |
| 1961 | 1961-05-15 | 1961-08-10 |
| 1963 | 1963-06-30 | 1963-07-29 |
| 1964 | 1964-06-20 | 1964-07-29 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 34 | 28 | 1929 | 3 |
| 35 C (95 F): Days | 2 | 3 | 1929 | 1 |
| 90 F (32.2 C): Days | 16 | 13 | 1929 | 3 |
| 0 C (32 F): Ice days (max | 39 | 121 | 1939 | 98 |
| 0 C (32 F): Frost days (min | 39 | 222 | 1936 | 189 |
| -10 C (14 F): Days with min | 39 | 109 | 1924 | 90 |
| -20 C (-4 F): Days with min | 39 | 64 | 1934 | 20 |
| -30 C (-22 F): Days with min | 32 | 19 | 1934 | 2 |
| 20 C (68 F): Tropical nights (min | 20 | 7 | 1949 | 2 |
| 25 C (77 F): Days with min | 1 | 1 | 1939 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 36 | 53 | 1963 | 30 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 36 | 16 | 1937 | 6 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 22 | 5 | 1954 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1942 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 37 | 16 | 1933 | 7 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 26 | 5 | 1936 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 2 | 1 | 1936 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1923.
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).