Boston Sun Hours: Understanding Your Solar Investment
Solar Overview
Annual solar irradiation in Boston totals approximately 2,352 sun hours, peaking during July. Positioned at 42.36°, Boston benefits from moderate seasonal variation, making fixed-tilt systems highly effective. Boston presents workable conditions for solar energy, particularly when combined with energy efficiency measures and available incentives.
Geographic Impact
Located at 42.3601° latitude and -71.0589° longitude, Boston's geographical position significantly impacts its solar potential. The moderate latitude ensures that winter sun angles remain above 30°, providing viable year-round production without extreme seasonal fluctuations.
Rating Methodology
Boston receives a "Average" rating for solar potential, derived from comprehensive analysis of 2,352 annual sun hours, 11.9°C average temperature, and geographic factors. Cold conditions boost panel output due to improved electrical conductivity, making this climate favorable for solar generation. Boston's solar conditions enable systems to generate 1,000-1,200 kWh per installed kW annually, supporting meaningful energy bill reductions.
Understanding the Data
The chart below shows the monthly distribution of sun hours in Boston. Summer dominance is evident with 42% of annual production, while winter contributes a more modest 16%. This seasonal pattern is typical for locations at this latitude and influences the sizing and economics of solar installations.
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