McAdam Threshold Days by Year (CA008102600)
18 fixed thresholds counted per year at McAdam (CA008102600): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for McAdam Thresholds
- McAdam: days with 10 cm (3.9 in) or more of snowfall in 54 years, most in 1926 with 17.
- McAdam: nights with a minimum temperature at or below 0 C (32 F) in 53 years, most in 1920 with 234.
- McAdam: nights with a minimum temperature at or below -10 C (14 F) in 53 years, most in 1920 with 118.
- McAdam: nights with a minimum temperature at or below -20 C (-4 F) in 53 years, most in 1920 with 52.
- 18 fixed thresholds have at least one qualifying day at McAdam.
Days at or above 30 C (86 F)
51 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1919 | 8 | 8 |
| 1920 | 7 | 4.6 |
| 1922 | 5 | 4.6 |
| 1923 | 3 | 4.6 |
| 1924 | 7 | 4.6 |
| 1925 | 5 | 4.6 |
| 1926 | 1 | 4.6 |
| 1927 | 2 | 4.6 |
| 1928 | 5 | 4.6 |
| 1929 | 6 | 4.6 |
| 1930 | 6 | 7.6 |
| 1931 | 5 | 7.6 |
| 1932 | 3 | 7.6 |
| 1933 | 2 | 7.6 |
| 1934 | 2 | 7.6 |
| 1935 | 12 | 7.6 |
| 1937 | 15 | 7.6 |
| 1938 | 7 | 7.6 |
| 1939 | 16 | 7.6 |
| 1940 | 6 | 9.7 |
| 1941 | 8 | 9.7 |
| 1942 | 6 | 9.7 |
| 1943 | 7 | 9.7 |
| 1944 | 16 | 9.7 |
| 1945 | 11 | 9.7 |
| 1946 | 8 | 9.7 |
| 1947 | 11 | 9.7 |
| 1948 | 6 | 9.7 |
| 1949 | 18 | 9.7 |
| 1951 | 1 | 5.6 |
| 1952 | 15 | 5.6 |
| 1953 | 5 | 5.6 |
| 1954 | 3 | 5.6 |
| 1956 | 3 | 5.6 |
| 1957 | 6 | 5.6 |
| 1958 | 1 | 5.6 |
| 1959 | 11 | 5.6 |
| 1960 | 5 | 5.7 |
| 1961 | 7 | 5.7 |
| 1962 | 3 | 5.7 |
| 1963 | 9 | 5.7 |
| 1964 | 4 | 5.7 |
| 1965 | 9 | 5.7 |
| 1966 | 2 | 5.7 |
| 1967 | 3 | 5.7 |
| 1968 | 6 | 5.7 |
| 1969 | 9 | 5.7 |
| 1970 | 16 | 7.3 |
| 1971 | 4 | 7.3 |
| 1973 | 6 | 7.3 |
| 1974 | 3 | 7.3 |
| Year | First date | Last date |
|---|---|---|
| 1919 | 1919-06-04 | 1919-07-22 |
| 1920 | 1920-06-02 | 1920-08-29 |
| 1922 | 1922-06-06 | 1922-07-18 |
| 1923 | 1923-06-20 | 1923-07-19 |
| 1924 | 1924-06-25 | 1924-08-17 |
| 1925 | 1925-06-05 | 1925-08-26 |
| 1926 | 1926-07-26 | 1926-07-26 |
| 1927 | 1927-06-24 | 1927-07-13 |
| 1928 | 1928-07-04 | 1928-08-18 |
| 1929 | 1929-05-29 | 1929-07-30 |
| 1930 | 1930-06-04 | 1930-10-14 |
| 1931 | 1931-05-30 | 1931-08-07 |
| 1932 | 1932-05-17 | 1932-08-27 |
| 1933 | 1933-06-29 | 1933-08-22 |
| 1934 | 1934-06-06 | 1934-07-07 |
| 1935 | 1935-07-04 | 1935-08-21 |
| 1937 | 1937-05-30 | 1937-08-21 |
| 1938 | 1938-06-01 | 1938-08-16 |
| 1939 | 1939-06-20 | 1939-09-16 |
| 1940 | 1940-05-27 | 1940-08-18 |
| 1941 | 1941-06-19 | 1941-07-25 |
| 1942 | 1942-06-11 | 1942-09-02 |
| 1943 | 1943-06-25 | 1943-08-02 |
| 1944 | 1944-06-28 | 1944-08-17 |
| 1945 | 1945-06-15 | 1945-09-08 |
| 1946 | 1946-06-24 | 1946-08-09 |
| 1947 | 1947-06-29 | 1947-09-12 |
| 1948 | 1948-07-11 | 1948-09-07 |
| 1949 | 1949-06-04 | 1949-08-28 |
| 1951 | 1951-07-10 | 1951-07-10 |
| 1952 | 1952-07-03 | 1952-08-29 |
| 1953 | 1953-05-10 | 1953-08-30 |
| 1954 | 1954-06-21 | 1954-06-26 |
| 1956 | 1956-06-14 | 1956-08-18 |
| 1957 | 1957-05-08 | 1957-07-20 |
| 1958 | 1958-08-03 | 1958-08-03 |
| 1959 | 1959-05-27 | 1959-08-17 |
| 1960 | 1960-05-29 | 1960-09-08 |
| 1961 | 1961-05-14 | 1961-09-11 |
| 1962 | 1962-05-19 | 1962-06-16 |
| 1963 | 1963-06-03 | 1963-07-28 |
| 1964 | 1964-05-24 | 1964-07-28 |
| 1965 | 1965-06-21 | 1965-09-22 |
| 1966 | 1966-05-24 | 1966-06-27 |
| 1967 | 1967-06-03 | 1967-06-05 |
| 1968 | 1968-07-09 | 1968-09-21 |
| 1969 | 1969-05-17 | 1969-09-01 |
| 1970 | 1970-06-02 | 1970-08-16 |
| 1971 | 1971-06-30 | 1971-09-08 |
| 1973 | 1973-07-08 | 1973-08-31 |
| 1974 | 1974-08-13 | 1974-08-22 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 51 | 18 | 1949 | 3 |
| 35 C (95 F): Days | 3 | 3 | 1935 | 1 |
| 90 F (32.2 C): Days | 37 | 12 | 1944 | 1 |
| 100 F (37.8 C): Days | 1 | 1 | 1935 | 1 |
| 0 C (32 F): Ice days (max | 52 | 104 | 1926 | 83 |
| 0 C (32 F): Frost days (min | 53 | 234 | 1920 | 190 |
| -10 C (14 F): Days with min | 53 | 118 | 1920 | 74 |
| -20 C (-4 F): Days with min | 53 | 52 | 1920 | 12 |
| -30 C (-22 F): Days with min | 33 | 14 | 1923 | 1 |
| -40 C (-40 F): Days with min | 1 | 1 | 1962 | 1 |
| 20 C (68 F): Tropical nights (min | 15 | 5 | 1949 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 39 | 52 | 1959 | 36 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 39 | 24 | 1925 | 7 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 29 | 4 | 1970 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 4 | 2 | 1954 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 54 | 17 | 1926 | 11 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 31 | 3 | 1956 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 3 | 1 | 1933 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1919.
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).