2025 Compare Cities Climate:
St. Thomas, PA vs Mercersburg, PA

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Highlights
- Mercersburg has 1.2% more rainy days than St. Thomas.
- Mercersburg has 1.5% more Sunny Days than St. Thomas.
- On the BestPlaces comfort index, Mercersburg scores 0.0% worse than St. Thomas
 St. Thomas, PAMercersburg, PAUnited States
 Rainfall  Unlock4138
 Snowfall31  Unlock28
 Precipitation  Unlock116106
 Sunny196  Unlock205
 Avg. July High  Unlock8586
 Avg. Jan. Low23  Unlock22
 Comfort Index (higher=better)  Unlock7.27
 UV Index3.9  Unlock4.3
 Elevation  Unlock5842443
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