inland destination · city of 140,847 · warmest in Aug · mid-range
Open Fullerton on the live value map →| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 14 | 15 | 15 | 17 | 19 | 21 | 23 | 24 | 23 | 20 | 16 | 14 |
| High °C | 20 | 21 | 21 | 23 | 24 | 27 | 29 | 30 | 29 | 27 | 23 | 20 |
| Low °C | 7 | 8 | 9 | 11 | 13 | 15 | 17 | 18 | 17 | 14 | 10 | 7 |
| Rain (days) | 85 | 88 | 76 | 24 | 5 | 2 | 1 | 3 | 8 | 12 | 40 | 54 |
Warmest month: Aug. Driest: Jul.