| 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 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 25l - Front Range Fans | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 80513 - Berthoud, CO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 13 | 18 | 25 | 33 | 42 | 51 | 56 | 54 | 45 | 34 | 23 | 15 | 34 |
| Avg Max Temp (°F) | 42 | 47 | 53 | 62 | 72 | 82 | 88 | 86 | 78 | 66 | 51 | 44 | 64 |
| Avg Precip (In.) | .41 | .38 | 1.24 | 1.93 | 2.52 | 1.81 | 1.38 | 1.3 | 1.33 | .89 | .8 | .51 | 14.47 |