Mc Mechen Dam 13 Threshold Days by Year (USC00465847)
5 fixed thresholds counted per year at Mc Mechen Dam 13 (USC00465847): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Mc Mechen Dam 13 Thresholds
- Mc Mechen Dam 13: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1937 with 47.
- Mc Mechen Dam 13: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 1940 with 14.
- Mc Mechen Dam 13: days with 50 mm (1.97 in) or more of precipitation in 22 years, most in 1943 with 4.
- Mc Mechen Dam 13: days with 10 cm (3.9 in) or more of snowfall in 10 years, most in 1950 with 3.
- 5 fixed thresholds have at least one qualifying day at Mc Mechen Dam 13.
Days with 10 mm (0.39 in) or more of precipitation
41 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1934 | 36 | 36.8 |
| 1935 | 37 | 36.8 |
| 1936 | 30 | 36.8 |
| 1937 | 47 | 36.8 |
| 1938 | 32 | 36.8 |
| 1939 | 39 | 36.8 |
| 1940 | 38 | 33 |
| 1941 | 29 | 33 |
| 1942 | 36 | 33 |
| 1943 | 36 | 33 |
| 1944 | 34 | 33 |
| 1945 | 38 | 33 |
| 1946 | 28 | 33 |
| 1947 | 24 | 33 |
| 1948 | 36 | 33 |
| 1949 | 31 | 33 |
| 1950 | 43 | 35.5 |
| 1951 | 37 | 35.5 |
| 1952 | 34 | 35.5 |
| 1953 | 24 | 35.5 |
| 1954 | 33 | 35.5 |
| 1955 | 37 | 35.5 |
| 1956 | 46 | 35.5 |
| 1957 | 33 | 35.5 |
| 1958 | 37 | 35.5 |
| 1959 | 31 | 35.5 |
| 1960 | 32 | 30.1 |
| 1961 | 43 | 30.1 |
| 1962 | 32 | 30.1 |
| 1963 | 20 | 30.1 |
| 1964 | 28 | 30.1 |
| 1965 | 26 | 30.1 |
| 1966 | 26 | 30.1 |
| 1967 | 35 | 30.1 |
| 1968 | 31 | 30.1 |
| 1969 | 28 | 30.1 |
| 1970 | 37 | 35.6 |
| 1971 | 27 | 35.6 |
| 1972 | 38 | 35.6 |
| 1973 | 34 | 35.6 |
| 1974 | 42 | 35.6 |
| Year | First date | Last date |
|---|---|---|
| 1934 | 1934-01-07 | 1934-12-26 |
| 1935 | 1935-01-01 | 1935-12-14 |
| 1936 | 1936-01-03 | 1936-12-20 |
| 1937 | 1937-01-02 | 1937-12-18 |
| 1938 | 1938-01-01 | 1938-12-27 |
| 1939 | 1939-01-14 | 1939-12-27 |
| 1940 | 1940-02-07 | 1940-12-30 |
| 1941 | 1941-01-27 | 1941-11-23 |
| 1942 | 1942-02-05 | 1942-12-31 |
| 1943 | 1943-02-11 | 1943-12-27 |
| 1944 | 1944-01-04 | 1944-12-28 |
| 1945 | 1945-01-01 | 1945-12-26 |
| 1946 | 1946-02-06 | 1946-12-30 |
| 1947 | 1947-01-02 | 1947-12-16 |
| 1948 | 1948-01-02 | 1948-12-30 |
| 1949 | 1949-01-05 | 1949-12-13 |
| 1950 | 1950-01-03 | 1950-12-08 |
| 1951 | 1951-01-04 | 1951-12-21 |
| 1952 | 1952-01-03 | 1952-12-11 |
| 1953 | 1953-01-01 | 1953-12-05 |
| 1954 | 1954-01-21 | 1954-12-30 |
| 1955 | 1955-02-06 | 1955-11-16 |
| 1956 | 1956-01-29 | 1956-12-21 |
| 1957 | 1957-01-10 | 1957-12-26 |
| 1958 | 1958-01-14 | 1958-11-29 |
| 1959 | 1959-01-02 | 1959-12-13 |
| 1960 | 1960-01-03 | 1960-12-21 |
| 1961 | 1961-01-01 | 1961-12-24 |
| 1962 | 1962-01-16 | 1962-12-30 |
| 1963 | 1963-01-11 | 1963-12-24 |
| 1964 | 1964-01-02 | 1964-12-28 |
| 1965 | 1965-01-02 | 1965-11-27 |
| 1966 | 1966-01-02 | 1966-12-11 |
| 1967 | 1967-02-03 | 1967-11-23 |
| 1968 | 1968-01-14 | 1968-12-28 |
| 1969 | 1969-01-29 | 1969-12-31 |
| 1970 | 1970-01-29 | 1970-12-24 |
| 1971 | 1971-01-04 | 1971-12-07 |
| 1972 | 1972-01-02 | 1972-12-22 |
| 1973 | 1973-01-04 | 1973-11-28 |
| 1974 | 1974-01-04 | 1974-12-16 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 10 mm (0.39 in): Days with 10 mm or more rain | 41 | 47 | 1937 | 42 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 41 | 14 | 1940 | 12 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 22 | 4 | 1943 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 10 | 3 | 1950 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 3 | 1 | 1950 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1934.
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).