| 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 9a: 20°F to 25°F Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F | |
| 1990 Hardiness Zone: | Zone 10a: 30F to 35F | |
| Average First Frost Date: | Jan. 1 - Jan. 10 | |
| Average Last Frost Date: | Jan. 21 - Jan. 31 | |
| Koppen-Geiger Climate Zone: | Csa - Hot-Summer Mediterranean Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 92064 - Poway, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 41 | 43 | 45 | 47 | 53 | 56 | 60 | 61 | 59 | 53 | 45 | 41 | 50 |
| Avg Max Temp (°F) | 67 | 68 | 70 | 73 | 76 | 82 | 87 | 89 | 85 | 80 | 73 | 68 | 76 |
| Avg Precip (In.) | 3.08 | 2.76 | 3 | 1.09 | .36 | .1 | .01 | .11 | .28 | .5 | 1.34 | 1.71 | 14.34 |