Onoto Threshold Days by Year
4 fixed thresholds counted per year at Onoto (ASN00037089): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Onoto Thresholds
- Onoto: days with 10 mm (0.39 in) or more of precipitation in 32 years, most in 1917 with 20.
- Onoto: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1917 with 10.
- Onoto: days with 50 mm (1.97 in) or more of precipitation in 22 years, most in 1977 with 5.
- Onoto: days with 100 mm (3.94 in) or more of precipitation in 9 years, most in 1916 with 1.
- 4 fixed thresholds have at least one qualifying day at Onoto.
Days with 10 mm (0.39 in) or more of precipitation
32 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1915 | 7 | 10.6 |
| 1916 | 13 | 10.6 |
| 1917 | 20 | 10.6 |
| 1918 | 7 | 10.6 |
| 1919 | 6 | 10.6 |
| 1920 | 19 | 8.1 |
| 1921 | 10 | 8.1 |
| 1922 | 7 | 8.1 |
| 1923 | 5 | 8.1 |
| 1924 | 9 | 8.1 |
| 1925 | 3 | 8.1 |
| 1926 | 4 | 8.1 |
| 1963 | 12 | 7.4 |
| 1964 | 5 | 7.4 |
| 1965 | 6 | 7.4 |
| 1966 | 8 | 7.4 |
| 1967 | 6 | 7.4 |
| 1968 | 9 | 7.4 |
| 1969 | 6 | 7.4 |
| 1970 | 8 | 9.5 |
| 1971 | 14 | 9.5 |
| 1972 | 3 | 9.5 |
| 1973 | 14 | 9.5 |
| 1974 | 8 | 9.5 |
| 1975 | 6 | 9.5 |
| 1976 | 13 | 9.5 |
| 1977 | 12 | 9.5 |
| 1978 | 11 | 9.5 |
| 1979 | 6 | 9.5 |
| 1980 | 8 | 6.7 |
| 1981 | 8 | 6.7 |
| 1982 | 4 | 6.7 |
| Year | First date | Last date |
|---|---|---|
| 1915 | 1915-05-14 | 1915-12-29 |
| 1916 | 1916-01-27 | 1916-12-30 |
| 1917 | 1917-01-03 | 1917-12-24 |
| 1918 | 1918-01-07 | 1918-03-12 |
| 1919 | 1919-01-20 | 1919-12-05 |
| 1920 | 1920-02-01 | 1920-12-05 |
| 1921 | 1921-01-14 | 1921-06-24 |
| 1922 | 1922-02-24 | 1922-12-20 |
| 1923 | 1923-04-25 | 1923-12-27 |
| 1924 | 1924-01-06 | 1924-12-12 |
| 1925 | 1925-03-19 | 1925-11-18 |
| 1926 | 1926-03-24 | 1926-09-25 |
| 1963 | 1963-01-11 | 1963-10-29 |
| 1964 | 1964-01-13 | 1964-10-08 |
| 1965 | 1965-01-25 | 1965-12-21 |
| 1966 | 1966-01-06 | 1966-11-07 |
| 1967 | 1967-02-25 | 1967-12-29 |
| 1968 | 1968-01-14 | 1968-07-09 |
| 1969 | 1969-02-24 | 1969-12-22 |
| 1970 | 1970-02-01 | 1970-12-07 |
| 1971 | 1971-02-08 | 1971-11-20 |
| 1972 | 1972-01-12 | 1972-03-04 |
| 1973 | 1973-01-12 | 1973-12-16 |
| 1974 | 1974-02-18 | 1974-11-11 |
| 1975 | 1975-01-02 | 1975-12-25 |
| 1976 | 1976-01-14 | 1976-12-21 |
| 1977 | 1977-01-15 | 1977-12-16 |
| 1978 | 1978-01-05 | 1978-11-19 |
| 1979 | 1979-01-20 | 1979-12-26 |
| 1980 | 1980-01-02 | 1980-10-13 |
| 1981 | 1981-01-14 | 1981-07-22 |
| 1982 | 1982-03-01 | 1982-12-07 |
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 | 32 | 20 | 1917 | 4 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 30 | 10 | 1917 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 22 | 5 | 1977 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 9 | 1 | 1916 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.
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).