| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | May 21 - May 31 |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate |
| Ecoregion: | 25c - Moderate Relief Plains |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 80016 - Aurora, CO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 19 | 25 | 32 | 41 | 50 | 56 | 54 | 46 | 35 | 24 | 17 | 34 |
| Avg Max Temp (°F) | 44 | 47 | 53 | 61 | 70 | 81 | 87 | 85 | 77 | 66 | 52 | 45 | 64 |
| Avg Precip (In.) | .45 | .46 | 1.33 | 1.91 | 2.7 | 1.92 | 2.26 | 2.01 | 1.31 | .94 | 1.01 | .57 | 16.87 |