| 2023 Hardiness Zone: | 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. 11 - Oct. 20 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 47f - Rolling Loess Prairies |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 52761 - Muscatine, IA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 13 | 19 | 29 | 40 | 51 | 61 | 65 | 63 | 54 | 43 | 31 | 19 | 41 |
| Avg Max Temp (°F) | 30 | 37 | 49 | 63 | 74 | 83 | 86 | 84 | 77 | 65 | 48 | 35 | 61 |
| Avg Precip (In.) | 1.31 | 1.29 | 2.57 | 3.36 | 4.16 | 4.29 | 4.09 | 4.22 | 3.5 | 2.71 | 2.52 | 1.88 | 35.91 |