2025 Compare Cities Climate:
Sumner, IA vs Grundy Center, IA

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Highlights
- Grundy Center has 0.6% less rainy days than Sumner.
- Grundy Center has 1.6% more Sunny Days than Sumner.
- On the BestPlaces comfort index, Grundy Center scores 1.5% better than Sumner
 Sumner, IAGrundy Center, IAUnited States
 Rainfall  Unlock3638
 Snowfall36  Unlock28
 Precipitation  Unlock98106
 Sunny188  Unlock205
 Avg. July High  Unlock8386
 Avg. Jan. Low7  Unlock22
 Comfort Index (higher=better)  Unlock6.87
 UV Index3.7  Unlock4.3
 Elevation  Unlock10272443
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