South Falls Threshold Days by Year
5 fixed thresholds counted per year at South Falls (CA006117943): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for South Falls Thresholds
- South Falls: days with 10 mm (0.39 in) or more of precipitation in 16 years, most in 1965 with 41.
- South Falls: days with 25 mm (0.98 in) or more of precipitation in 16 years, most in 1923 with 10.
- South Falls: days with 10 cm (3.9 in) or more of snowfall in 16 years, most in 1922 with 15.
- South Falls: days with 25 cm (9.8 in) or more of snowfall in 10 years, most in 1922 with 2.
- 5 fixed thresholds have at least one qualifying day at South Falls.
Days with 10 mm (0.39 in) or more of precipitation
16 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1921 | 37 | 37 |
| 1922 | 36 | 37 |
| 1923 | 38 | 37 |
| 1924 | 37 | 37 |
| 1957 | 37 | 32.3 |
| 1958 | 22 | 32.3 |
| 1959 | 38 | 32.3 |
| 1960 | 39 | 33 |
| 1961 | 29 | 33 |
| 1962 | 35 | 33 |
| 1963 | 33 | 33 |
| 1964 | 25 | 33 |
| 1965 | 41 | 33 |
| 1966 | 34 | 33 |
| 1967 | 40 | 33 |
| 1968 | 21 | 33 |
| Year | First date | Last date |
|---|---|---|
| 1921 | 1921-01-16 | 1921-12-18 |
| 1922 | 1922-01-08 | 1922-12-31 |
| 1923 | 1923-01-24 | 1923-12-28 |
| 1924 | 1924-01-03 | 1924-12-25 |
| 1957 | 1957-01-04 | 1957-12-25 |
| 1958 | 1958-05-14 | 1958-12-15 |
| 1959 | 1959-01-01 | 1959-12-29 |
| 1960 | 1960-01-04 | 1960-12-28 |
| 1961 | 1961-01-27 | 1961-12-30 |
| 1962 | 1962-01-06 | 1962-12-25 |
| 1963 | 1963-01-12 | 1963-12-29 |
| 1964 | 1964-01-09 | 1964-12-24 |
| 1965 | 1965-01-02 | 1965-12-24 |
| 1966 | 1966-01-22 | 1966-12-07 |
| 1967 | 1967-01-16 | 1967-12-21 |
| 1968 | 1968-01-01 | 1968-12-27 |
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 | 16 | 41 | 1965 | 21 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 16 | 10 | 1923 | 5 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 4 | 1 | 1921 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 16 | 15 | 1922 | 7 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 10 | 2 | 1922 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1921.
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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).