Gilroy, Saturday, 8 August, 21:42
Clear. Feels like 63°. High 87°, low 61°.
In December, Gilroy, CA averages a high of 58.5° and a low of 41.5°. About 3.0 inches of precipitation fall over the month (8 wet days). The record high is 78.6° (2021) and the record low 25.7° (1990). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 61° | 43.2° | 23% | 78.6° (2021) | 33.4° (2004) |
| 2 | 60.6° | 43° | 22% | 72.3° (2021) | 30.7° (2022) |
| 3 | 61° | 43.2° | 25% | 73° (1979) | 32.7° (2004) |
| 4 | 60.8° | 43° | 23% | 73.4° (1979) | 34.2° (2004) |
| 5 | 60.8° | 43.7° | 23% | 73.9° (2023) | 32° (2013) |
| 6 | 60.4° | 43.5° | 25% | 71.2° (1962) | 32.2° (1960) |
| 7 | 60.3° | 43° | 27% | 72° (2020) | 31.8° (1960) |
| 8 | 59.5° | 42.3° | 15% | 73.8° (2020) | 29.8° (1978) |
| 9 | 59.9° | 41.9° | 22% | 73.6° (2020) | 27.7° (1972) |
| 10 | 59.5° | 41.9° | 23% | 71.8° (2017) | 29.1° (1972) |
| 11 | 59° | 41.4° | 28% | 74.5° (2017) | 28.8° (1972) |
| 12 | 58.3° | 41.5° | 25% | 70.3° (1988) | 28.2° (1972) |
| 13 | 57.4° | 42.1° | 15% | 68° (2017) | 27° (1972) |
| 14 | 57.6° | 41.2° | 23% | 69.8° (2017) | 28.8° (1972) |
| 15 | 58.1° | 40.8° | 23% | 68.7° (2023) | 28.9° (1967) |
| 16 | 59° | 39.9° | 15% | 72.3° (2023) | 31.6° (1971) |
| 17 | 58.8° | 41.5° | 30% | 70.5° (1979) | 30.7° (2008) |
| 18 | 57.7° | 41° | 23% | 66.9° (2023) | 30.2° (2022) |
| 19 | 57.7° | 41° | 30% | 67.8° (1985) | 31.6° (1992) |
| 20 | 57.2° | 40.8° | 28% | 67.8° (1985) | 31.5° (1978) |
| 21 | 57° | 40.6° | 28% | 68.4° (1999) | 28.2° (1990) |
| 22 | 57° | 41.5° | 35% | 67.5° (1999) | 25.9° (1990) |
| 23 | 57.9° | 40.3° | 18% | 70.5° (2024) | 25.7° (1990) |
| 24 | 57.7° | 40.8° | 27% | 69.8° (2005) | 28° (1990) |
| 25 | 57.6° | 40.1° | 23% | 68.9° (2013) | 28.4° (1990) |
| 26 | 57.4° | 40.6° | 27% | 71.8° (1980) | 29.3° (1990) |
| 27 | 57.2° | 41° | 27% | 70.2° (1980) | 30° (2015) |
| 28 | 56.7° | 40.6° | 32% | 70.5° (2017) | 30.7° (1966) |
| 29 | 57° | 40.6° | 33% | 74.3° (2017) | 29.3° (1988) |
| 30 | 57° | 40.3° | 28% | 71.8° (2017) | 28.9° (1990) |
| 31 | 56.5° | 40.8° | 20% | 69.6° (1980) | 29.8° (1978) |