Gerber Dam Threshold Days by Year
15 fixed thresholds counted per year at Gerber Dam (USC00353232): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Gerber Dam Thresholds
- Gerber Dam: days with 10 mm (0.39 in) or more of precipitation in 32 years, most in 1937 with 18.
- Gerber Dam: days with 25 mm (0.98 in) or more of precipitation in 19 years, most in 1926 with 3.
- Gerber Dam: days with 10 cm (3.9 in) or more of snowfall in 15 years, most in 1938 with 9.
- Gerber Dam: days with a maximum temperature at or above 30 C (86 F) in 14 years, most in 1951 with 64.
- 15 fixed thresholds have at least one qualifying day at Gerber Dam.
Days at or above 30 C (86 F)
14 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1946 | 41 | 34.3 |
| 1947 | 32 | 34.3 |
| 1948 | 28 | 34.3 |
| 1949 | 36 | 34.3 |
| 1950 | 55 | 54.8 |
| 1951 | 64 | 54.8 |
| 1952 | 50 | 54.8 |
| 1953 | 53 | 54.8 |
| 1954 | 43 | 54.8 |
| 1955 | 64 | 54.8 |
| 2018 | 40 | 35.5 |
| 2019 | 31 | 35.5 |
| 2020 | 52 | 56.5 |
| 2021 | 61 | 56.5 |
| Year | First date | Last date |
|---|---|---|
| 1946 | 1946-06-19 | 1946-09-24 |
| 1947 | 1947-05-01 | 1947-09-24 |
| 1948 | 1948-06-28 | 1948-09-13 |
| 1949 | 1949-05-25 | 1949-09-26 |
| 1950 | 1950-06-04 | 1950-09-06 |
| 1951 | 1951-06-14 | 1951-09-19 |
| 1952 | 1952-06-05 | 1952-10-04 |
| 1953 | 1953-07-02 | 1953-09-20 |
| 1954 | 1954-05-17 | 1954-09-27 |
| 1955 | 1955-06-06 | 1955-09-12 |
| 2018 | 2018-06-25 | 2018-09-28 |
| 2019 | 2019-06-12 | 2019-09-05 |
| 2020 | 2020-05-29 | 2020-10-03 |
| 2021 | 2021-06-01 | 2021-09-08 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 14 | 64 | 1951 | 61 |
| 35 C (95 F): Days | 10 | 19 | 1955 | 13 |
| 40 C (104 F): Days | 1 | 1 | 1955 | 1 |
| 90 F (32.2 C): Days | 14 | 47 | 1955 | 44 |
| 100 F (37.8 C): Days | 5 | 5 | 1955 | 2 |
| 0 C (32 F): Ice days (max | 14 | 29 | 1949 | 16 |
| 0 C (32 F): Frost days (min | 12 | 209 | 1948 | 178 |
| -10 C (14 F): Days with min | 12 | 58 | 1955 | 18 |
| -20 C (-4 F): Days with min | 9 | 23 | 1949 | 10 |
| -30 C (-22 F): Days with min | 3 | 6 | 1949 | 4 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 32 | 18 | 1937 | 6 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 19 | 3 | 1926 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 2 | 1 | 1934 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 15 | 9 | 1938 | 4 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 4 | 2 | 1948 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1946.
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 (2026-10-12).