Mac Mac Bos Threshold Days by Year (SF005945390)
5 fixed thresholds counted per year at Mac Mac Bos (SF005945390): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Mac Mac Bos Thresholds
- Mac Mac Bos: days with 10 mm (0.39 in) or more of precipitation in 71 years, most in 1925 with 67.
- Mac Mac Bos: days with 25 mm (0.98 in) or more of precipitation in 71 years, most in 1925 with 30.
- Mac Mac Bos: days with 50 mm (1.97 in) or more of precipitation in 70 years, most in 1925 with 15.
- Mac Mac Bos: days with 100 mm (3.94 in) or more of precipitation in 36 years, most in 1923 with 4.
- 5 fixed thresholds have at least one qualifying day at Mac Mac Bos.
Days with 10 mm (0.39 in) or more of precipitation
71 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1919 | 36 | 36 |
| 1920 | 52 | 46 |
| 1921 | 52 | 46 |
| 1922 | 36 | 46 |
| 1923 | 40 | 46 |
| 1924 | 43 | 46 |
| 1925 | 67 | 46 |
| 1926 | 29 | 46 |
| 1927 | 44 | 46 |
| 1928 | 41 | 46 |
| 1929 | 56 | 46 |
| 1930 | 41 | 43.6 |
| 1931 | 40 | 43.6 |
| 1932 | 35 | 43.6 |
| 1933 | 45 | 43.6 |
| 1934 | 48 | 43.6 |
| 1935 | 29 | 43.6 |
| 1936 | 49 | 43.6 |
| 1937 | 45 | 43.6 |
| 1938 | 46 | 43.6 |
| 1939 | 58 | 43.6 |
| 1940 | 52 | 47 |
| 1941 | 38 | 47 |
| 1942 | 50 | 47 |
| 1943 | 47 | 47 |
| 1944 | 48 | 47 |
| 1945 | 39 | 47 |
| 1946 | 48 | 47 |
| 1947 | 53 | 47 |
| 1948 | 44 | 47 |
| 1949 | 51 | 47 |
| 1950 | 57 | 49.3 |
| 1951 | 43 | 49.3 |
| 1952 | 51 | 49.3 |
| 1953 | 53 | 49.3 |
| 1954 | 43 | 49.3 |
| 1955 | 58 | 49.3 |
| 1956 | 46 | 49.3 |
| 1957 | 44 | 49.3 |
| 1958 | 49 | 49.3 |
| 1959 | 49 | 49.3 |
| 1960 | 44 | 42.9 |
| 1961 | 52 | 42.9 |
| 1962 | 46 | 42.9 |
| 1963 | 45 | 42.9 |
| 1964 | 40 | 42.9 |
| 1965 | 44 | 42.9 |
| 1966 | 42 | 42.9 |
| 1968 | 34 | 42.9 |
| 1969 | 39 | 42.9 |
| 1970 | 27 | 48.8 |
| 1971 | 43 | 48.8 |
| 1972 | 61 | 48.8 |
| 1973 | 58 | 48.8 |
| 1974 | 47 | 48.8 |
| 1975 | 51 | 48.8 |
| 1976 | 54 | 48.8 |
| 1977 | 53 | 48.8 |
| 1978 | 55 | 48.8 |
| 1979 | 39 | 48.8 |
| 1980 | 48 | 43 |
| 1981 | 50 | 43 |
| 1982 | 30 | 43 |
| 1983 | 44 | 43 |
| 1984 | 44 | 43 |
| 1985 | 41 | 43 |
| 1986 | 47 | 43 |
| 1987 | 40 | 43 |
| 1988 | 52 | 43 |
| 1989 | 34 | 43 |
| 1991 | 35 | 35 |
| Year | First date | Last date |
|---|---|---|
| 1919 | 1919-01-02 | 1919-12-17 |
| 1920 | 1920-01-08 | 1920-12-30 |
| 1921 | 1921-02-02 | 1921-12-30 |
| 1922 | 1922-01-10 | 1922-12-27 |
| 1923 | 1923-01-01 | 1923-12-29 |
| 1924 | 1924-01-12 | 1924-12-30 |
| 1925 | 1925-01-05 | 1925-12-31 |
| 1926 | 1926-01-01 | 1926-12-22 |
| 1927 | 1927-01-01 | 1927-12-29 |
| 1928 | 1928-01-01 | 1928-12-30 |
| 1929 | 1929-01-10 | 1929-12-20 |
| 1930 | 1930-01-05 | 1930-12-30 |
| 1931 | 1931-01-01 | 1931-12-25 |
| 1932 | 1932-01-12 | 1932-12-27 |
| 1933 | 1933-01-04 | 1933-12-25 |
| 1934 | 1934-01-01 | 1934-12-29 |
| 1935 | 1935-01-07 | 1935-12-27 |
| 1936 | 1936-01-09 | 1936-12-30 |
| 1937 | 1937-01-04 | 1937-12-31 |
| 1938 | 1938-01-08 | 1938-12-31 |
| 1939 | 1939-01-01 | 1939-12-30 |
| 1940 | 1940-01-15 | 1940-12-31 |
| 1941 | 1941-01-03 | 1941-12-24 |
| 1942 | 1942-01-02 | 1942-12-31 |
| 1943 | 1943-01-01 | 1943-12-26 |
| 1944 | 1944-01-02 | 1944-12-31 |
| 1945 | 1945-01-04 | 1945-12-27 |
| 1946 | 1946-01-04 | 1946-12-21 |
| 1947 | 1947-01-02 | 1947-12-31 |
| 1948 | 1948-01-01 | 1948-12-31 |
| 1949 | 1949-01-12 | 1949-12-31 |
| 1950 | 1950-01-04 | 1950-12-31 |
| 1951 | 1951-01-12 | 1951-12-27 |
| 1952 | 1952-01-04 | 1952-12-31 |
| 1953 | 1953-01-02 | 1953-12-31 |
| 1954 | 1954-01-01 | 1954-12-29 |
| 1955 | 1955-01-02 | 1955-12-31 |
| 1956 | 1956-01-01 | 1956-12-27 |
| 1957 | 1957-01-08 | 1957-12-25 |
| 1958 | 1958-01-03 | 1958-12-29 |
| 1959 | 1959-01-01 | 1959-12-25 |
| 1960 | 1960-01-12 | 1960-12-30 |
| 1961 | 1961-01-08 | 1961-12-26 |
| 1962 | 1962-01-09 | 1962-12-24 |
| 1963 | 1963-01-06 | 1963-12-22 |
| 1964 | 1964-01-01 | 1964-12-30 |
| 1965 | 1965-01-06 | 1965-12-30 |
| 1966 | 1966-01-07 | 1966-12-31 |
| 1968 | 1968-01-06 | 1968-12-30 |
| 1969 | 1969-01-07 | 1969-12-28 |
| 1970 | 1970-01-26 | 1970-12-30 |
| 1971 | 1971-01-02 | 1971-12-27 |
| 1972 | 1972-01-02 | 1972-12-31 |
| 1973 | 1973-01-02 | 1973-12-27 |
| 1974 | 1974-01-03 | 1974-12-23 |
| 1975 | 1975-01-02 | 1975-12-31 |
| 1976 | 1976-01-01 | 1976-12-27 |
| 1977 | 1977-01-19 | 1977-12-31 |
| 1978 | 1978-01-01 | 1978-12-31 |
| 1979 | 1979-01-02 | 1979-12-27 |
| 1980 | 1980-01-05 | 1980-12-25 |
| 1981 | 1981-01-04 | 1981-12-30 |
| 1982 | 1982-01-01 | 1982-12-31 |
| 1983 | 1983-01-13 | 1983-12-27 |
| 1984 | 1984-01-02 | 1984-12-23 |
| 1985 | 1985-01-06 | 1985-12-31 |
| 1986 | 1986-01-01 | 1986-12-30 |
| 1987 | 1987-01-08 | 1987-12-28 |
| 1988 | 1988-01-06 | 1988-12-31 |
| 1989 | 1989-01-07 | 1989-12-31 |
| 1991 | 1991-01-08 | 1991-12-28 |
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 | 71 | 67 | 1925 | 35 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 71 | 30 | 1925 | 15 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 70 | 15 | 1925 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 36 | 4 | 1923 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 2 | 1 | 1934 | 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).