| 2023 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F | |
| 2012 Hardiness Zone: | Zone 10a: 30°F to 35°F | |
| 1990 Hardiness Zone: | Zone 10a: 30F to 35F | |
| Average First Frost Date: | Jan. 21 - Jan. 31 | |
| Average Last Frost Date: | Jan. 21 - Jan. 31 | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 92056 - Oceanside, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 45 | 46 | 48 | 51 | 55 | 58 | 62 | 63 | 61 | 56 | 49 | 45 | 53 |
| Avg Max Temp (°F) | 67 | 67 | 69 | 70 | 71 | 75 | 79 | 80 | 80 | 76 | 71 | 67 | 73 |
| Avg Precip (In.) | 2.86 | 2.51 | 2.63 | .89 | .27 | .13 | .04 | .12 | .3 | .45 | 1.16 | 1.47 | 12.82 |