| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F | |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 52a - Savanna Section | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 53574 - New Glarus, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 7 | 12 | 23 | 34 | 46 | 55 | 60 | 58 | 49 | 37 | 26 | 13 | 35 |
| Avg Max Temp (°F) | 25 | 31 | 43 | 57 | 69 | 79 | 82 | 80 | 72 | 60 | 44 | 30 | 56 |
| Avg Precip (In.) | 1.24 | 1.27 | 2.26 | 3.42 | 3.59 | 4.38 | 4.16 | 4.32 | 3.44 | 2.46 | 2.44 | 1.64 | 34.63 |