Sao Tome Threshold Days by Year (BR047182110)
4 fixed thresholds counted per year at Sao Tome (BR047182110): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Sao Tome Thresholds
- Sao Tome: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1980 with 21.
- Sao Tome: days with 25 mm (0.98 in) or more of precipitation in 39 years, most in 1970 with 11.
- Sao Tome: days with 50 mm (1.97 in) or more of precipitation in 23 years, most in 1976 with 4.
- Sao Tome: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1947 with 1.
- 4 fixed thresholds have at least one qualifying day at Sao Tome.
Days with 10 mm (0.39 in) or more of precipitation
41 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1938 | 10 | 11.5 |
| 1939 | 13 | 11.5 |
| 1943 | 13 | 10 |
| 1944 | 11 | 10 |
| 1945 | 8 | 10 |
| 1946 | 4 | 10 |
| 1947 | 16 | 10 |
| 1949 | 8 | 10 |
| 1950 | 3 | 7.2 |
| 1951 | 3 | 7.2 |
| 1952 | 9 | 7.2 |
| 1953 | 7 | 7.2 |
| 1954 | 11 | 7.2 |
| 1955 | 9 | 7.2 |
| 1956 | 5 | 7.2 |
| 1957 | 12 | 7.2 |
| 1958 | 12 | 7.2 |
| 1959 | 1 | 7.2 |
| 1960 | 20 | 12.9 |
| 1961 | 4 | 12.9 |
| 1962 | 10 | 12.9 |
| 1963 | 9 | 12.9 |
| 1964 | 20 | 12.9 |
| 1965 | 9 | 12.9 |
| 1966 | 14 | 12.9 |
| 1967 | 18 | 12.9 |
| 1968 | 9 | 12.9 |
| 1969 | 16 | 12.9 |
| 1970 | 17 | 13.2 |
| 1971 | 14 | 13.2 |
| 1972 | 17 | 13.2 |
| 1973 | 8 | 13.2 |
| 1974 | 19 | 13.2 |
| 1975 | 6 | 13.2 |
| 1976 | 13 | 13.2 |
| 1977 | 12 | 13.2 |
| 1978 | 14 | 13.2 |
| 1979 | 12 | 13.2 |
| 1980 | 21 | 11 |
| 1981 | 3 | 11 |
| 1982 | 9 | 11 |
| Year | First date | Last date |
|---|---|---|
| 1938 | 1938-02-05 | 1938-12-22 |
| 1939 | 1939-01-20 | 1939-12-15 |
| 1943 | 1943-01-20 | 1943-12-22 |
| 1944 | 1944-03-20 | 1944-12-15 |
| 1945 | 1945-03-28 | 1945-12-20 |
| 1946 | 1946-03-28 | 1946-10-29 |
| 1947 | 1947-01-24 | 1947-11-28 |
| 1949 | 1949-11-14 | 1949-12-21 |
| 1950 | 1950-04-15 | 1950-12-18 |
| 1951 | 1951-04-16 | 1951-12-13 |
| 1952 | 1952-11-01 | 1952-12-17 |
| 1953 | 1953-03-14 | 1953-12-19 |
| 1954 | 1954-02-02 | 1954-12-22 |
| 1955 | 1955-01-19 | 1955-12-31 |
| 1956 | 1956-03-01 | 1956-12-30 |
| 1957 | 1957-02-20 | 1957-11-10 |
| 1958 | 1958-01-20 | 1958-12-30 |
| 1959 | 1959-03-02 | 1959-03-02 |
| 1960 | 1960-01-01 | 1960-11-30 |
| 1961 | 1961-01-21 | 1961-12-10 |
| 1962 | 1962-01-16 | 1962-12-22 |
| 1963 | 1963-01-07 | 1963-12-24 |
| 1964 | 1964-01-13 | 1964-12-29 |
| 1965 | 1965-01-07 | 1965-11-23 |
| 1966 | 1966-02-03 | 1966-12-19 |
| 1967 | 1967-01-17 | 1967-12-29 |
| 1968 | 1968-01-29 | 1968-12-07 |
| 1969 | 1969-01-18 | 1969-12-28 |
| 1970 | 1970-01-13 | 1970-12-18 |
| 1971 | 1971-02-25 | 1971-12-23 |
| 1972 | 1972-01-19 | 1972-12-25 |
| 1973 | 1973-01-17 | 1973-12-31 |
| 1974 | 1974-01-19 | 1974-12-10 |
| 1975 | 1975-01-24 | 1975-12-22 |
| 1976 | 1976-02-03 | 1976-12-21 |
| 1977 | 1977-01-18 | 1977-12-27 |
| 1978 | 1978-01-11 | 1978-12-18 |
| 1979 | 1979-01-14 | 1979-12-18 |
| 1980 | 1980-01-03 | 1980-12-17 |
| 1981 | 1981-10-27 | 1981-12-28 |
| 1982 | 1982-03-04 | 1982-12-25 |
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 | 21 | 1980 | 9 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 39 | 11 | 1970 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 23 | 4 | 1976 | 3 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 3 | 1 | 1947 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1938.
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).