Weather Comparison: Portland and Boston

This page compares weather averages and records between the cities of Portland, Maine and Boston, Massachusetts.
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Records and Averages Comparison

Portland Boston
☀️ Record high 103 °F 104 °F
🌙 Record low -39 °F -18 °F
💧 Most daily precipitation 11.7 inches 7.1 inches
💧 Most monthly precipitation 16.9 inches 17.1 inches
💧 Most yearly precipitation 66.4 inches 62.3 inches
💧 Average yearly precipitation 48.1 inches 43.5 inches
❄️ Most daily snow 22.3 inches 23.6 inches
❄️ Most monthly snow 62.4 inches 64.8 inches
❄️ Most yearly snow 150.1 inches 108.6 inches
❄️ Average yearly snow 69.4 inches 49.2 inches
Maximum Difference Between High Temperatures
This table shows the times in history when the daily high temperature in Portland was warmest relative to Boston, and vice versa.
Date Portland Boston
November 24, 1925 55 °F 37 °F
April 19, 1909 45 °F 83 °F