Bira Threshold Days by Year (RSM00031618)
3 fixed thresholds counted per year at Bira (RSM00031618): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Bira Thresholds
- Bira: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 1959 with 48.
- Bira: days with 25 mm (0.98 in) or more of precipitation in 52 years, most in 1991 with 15.
- Bira: days with 50 mm (1.97 in) or more of precipitation in 32 years, most in 1963 with 5.
- 3 fixed thresholds have at least one qualifying day at Bira.
Days with 10 mm (0.39 in) or more of precipitation
52 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1936 | 26 | 26.3 |
| 1937 | 29 | 26.3 |
| 1939 | 24 | 26.3 |
| 1940 | 19 | 24 |
| 1941 | 20 | 24 |
| 1942 | 33 | 24 |
| 1943 | 27 | 24 |
| 1944 | 20 | 24 |
| 1947 | 30 | 24 |
| 1948 | 24 | 24 |
| 1949 | 19 | 24 |
| 1950 | 21 | 28.9 |
| 1951 | 29 | 28.9 |
| 1952 | 18 | 28.9 |
| 1953 | 31 | 28.9 |
| 1954 | 18 | 28.9 |
| 1955 | 35 | 28.9 |
| 1956 | 28 | 28.9 |
| 1957 | 29 | 28.9 |
| 1958 | 32 | 28.9 |
| 1959 | 48 | 28.9 |
| 1960 | 33 | 26.4 |
| 1962 | 30 | 26.4 |
| 1963 | 29 | 26.4 |
| 1964 | 28 | 26.4 |
| 1965 | 26 | 26.4 |
| 1966 | 23 | 26.4 |
| 1967 | 23 | 26.4 |
| 1968 | 22 | 26.4 |
| 1969 | 24 | 26.4 |
| 1971 | 39 | 25.6 |
| 1972 | 32 | 25.6 |
| 1973 | 21 | 25.6 |
| 1974 | 21 | 25.6 |
| 1975 | 24 | 25.6 |
| 1976 | 22 | 25.6 |
| 1977 | 25 | 25.6 |
| 1978 | 22 | 25.6 |
| 1979 | 24 | 25.6 |
| 1980 | 29 | 28.1 |
| 1981 | 30 | 28.1 |
| 1982 | 27 | 28.1 |
| 1983 | 37 | 28.1 |
| 1984 | 35 | 28.1 |
| 1985 | 29 | 28.1 |
| 1986 | 17 | 28.1 |
| 1987 | 29 | 28.1 |
| 1988 | 21 | 28.1 |
| 1989 | 27 | 28.1 |
| 1990 | 25 | 30.3 |
| 1991 | 41 | 30.3 |
| 1992 | 25 | 30.3 |
| Year | First date | Last date |
|---|---|---|
| 1936 | 1936-03-23 | 1936-11-27 |
| 1937 | 1937-04-13 | 1937-10-12 |
| 1939 | 1939-04-21 | 1939-11-20 |
| 1940 | 1940-05-15 | 1940-10-24 |
| 1941 | 1941-02-19 | 1941-10-04 |
| 1942 | 1942-04-21 | 1942-10-22 |
| 1943 | 1943-03-19 | 1943-11-08 |
| 1944 | 1944-05-06 | 1944-11-09 |
| 1947 | 1947-03-03 | 1947-10-22 |
| 1948 | 1948-04-08 | 1948-10-25 |
| 1949 | 1949-05-12 | 1949-12-05 |
| 1950 | 1950-04-27 | 1950-11-19 |
| 1951 | 1951-04-29 | 1951-10-01 |
| 1952 | 1952-05-27 | 1952-09-17 |
| 1953 | 1953-02-11 | 1953-10-21 |
| 1954 | 1954-03-19 | 1954-10-23 |
| 1955 | 1955-02-27 | 1955-12-05 |
| 1956 | 1956-04-23 | 1956-10-31 |
| 1957 | 1957-04-25 | 1957-12-19 |
| 1958 | 1958-03-21 | 1958-10-18 |
| 1959 | 1959-03-11 | 1959-10-28 |
| 1960 | 1960-03-11 | 1960-11-19 |
| 1962 | 1962-04-03 | 1962-09-28 |
| 1963 | 1963-01-03 | 1963-10-04 |
| 1964 | 1964-03-30 | 1964-11-01 |
| 1965 | 1965-05-09 | 1965-10-15 |
| 1966 | 1966-04-23 | 1966-10-29 |
| 1967 | 1967-05-16 | 1967-10-30 |
| 1968 | 1968-03-05 | 1968-11-06 |
| 1969 | 1969-03-20 | 1969-11-10 |
| 1971 | 1971-03-29 | 1971-12-06 |
| 1972 | 1972-04-16 | 1972-11-23 |
| 1973 | 1973-04-10 | 1973-11-10 |
| 1974 | 1974-04-16 | 1974-10-31 |
| 1975 | 1975-04-12 | 1975-10-07 |
| 1976 | 1976-03-12 | 1976-11-20 |
| 1977 | 1977-03-23 | 1977-11-27 |
| 1978 | 1978-04-19 | 1978-12-02 |
| 1979 | 1979-04-09 | 1979-12-20 |
| 1980 | 1980-04-19 | 1980-12-03 |
| 1981 | 1981-05-03 | 1981-10-22 |
| 1982 | 1982-01-12 | 1982-12-23 |
| 1983 | 1983-04-03 | 1983-11-17 |
| 1984 | 1984-03-24 | 1984-11-08 |
| 1985 | 1985-04-08 | 1985-10-26 |
| 1986 | 1986-05-22 | 1986-09-27 |
| 1987 | 1987-05-16 | 1987-11-18 |
| 1988 | 1988-01-22 | 1988-11-25 |
| 1989 | 1989-04-22 | 1989-12-27 |
| 1990 | 1990-02-11 | 1990-10-06 |
| 1991 | 1991-04-08 | 1991-10-27 |
| 1992 | 1992-03-19 | 1992-10-01 |
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 | 52 | 48 | 1959 | 25 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 52 | 15 | 1991 | 10 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 32 | 5 | 1963 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1936.
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).