2025 Compare Cities Climate:
Merrimack, NH vs Londonderry, NH

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Highlights
- Londonderry has 0.2% more rainy days than Merrimack.
- Londonderry has 0.5% more Sunny Days than Merrimack.
- On the BestPlaces comfort index, Londonderry scores 1.5% better than Merrimack
 Merrimack, NHLondonderry, NHUnited States
 Rainfall  Unlock4638
 Snowfall58  Unlock28
 Precipitation  Unlock123106
 Sunny199  Unlock205
 Avg. July High  Unlock8286
 Avg. Jan. Low13  Unlock22
 Comfort Index (higher=better)  Unlock6.87
 UV Index3.2  Unlock4.3
 Elevation  Unlock4132443
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