| 2023 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 10a: 30°F to 35°F | |
| 2012 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 10a: 30°F to 35°F | |
| 1990 Hardiness Zone: | Zone 10b: 35F to 40F | |
| Average First Frost Date: | No Frost | |
| Average Last Frost Date: | No Frost | |
| Koppen-Geiger Climate Zone: | Csa - Hot-Summer Mediterranean Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 90621 - Buena Park, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 45 | 47 | 49 | 51 | 56 | 59 | 62 | 63 | 62 | 57 | 49 | 45 | 54 |
| Avg Max Temp (°F) | 68 | 69 | 69 | 73 | 74 | 79 | 83 | 85 | 83 | 79 | 73 | 68 | 75 |
| Avg Precip (In.) | 2.97 | 3.45 | 2.59 | .75 | .26 | .09 | .02 | .12 | .26 | .4 | 1.15 | 1.73 | 13.79 |