| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F | |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 47b - Des Moines Lobe | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 50156 - Madrid, IA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 8 | 15 | 26 | 37 | 49 | 59 | 63 | 61 | 52 | 40 | 27 | 15 | 38 |
| Avg Max Temp (°F) | 28 | 34 | 46 | 61 | 72 | 81 | 84 | 82 | 76 | 64 | 46 | 32 | 59 |
| Avg Precip (In.) | .87 | .92 | 2.14 | 3.35 | 4.34 | 5.02 | 4.28 | 4.18 | 3.12 | 2.56 | 2 | 1.13 | 33.9 |