2025 Compare Cities Climate:
Upper Montclair, NJ vs Iselin, NJ

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Highlights
- Iselin has 1.2% less rainy days than Upper Montclair.
- Iselin has 0.5% less Sunny Days than Upper Montclair.
- On the BestPlaces comfort index, Iselin scores 0.0% worse than Upper Montclair
 Upper Montclair, NJIselin, NJUnited States
 Rainfall  Unlock4938
 Snowfall26  Unlock28
 Precipitation  Unlock115106
 Sunny205  Unlock205
 Avg. July High  Unlock8686
 Avg. Jan. Low20  Unlock22
 Comfort Index (higher=better)  Unlock7.27
 UV Index3.7  Unlock4.3
 Elevation  Unlock662443
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