Somerville, MA Weather & Climate Normals
Somerville's real weather, in one number
Somerville, MA scores 44/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Somerville's hottest and coldest months
Somerville's hottest month is Jul, averaging 74°F; its coldest is Jan, averaging 30°F, a 44.1°F swing across the year, a middling gap by national standards.
Somerville's weather across the year
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 37°F | 23°F | 3.39in | 14.3in |
| Feb | 39°F | 25°F | 3.21in | 14.4in |
| Mar | 46°F | 31°F | 4.17in | 9in |
| Apr | 56°F | 41°F | 3.63in | 1.6in |
| May | 67°F | 50°F | 3.25in | 0in |
| Jun | 76°F | 60°F | 3.89in | 0in |
| Jul | 82°F | 66°F | 3.27in | 0in |
| Aug | 80°F | 65°F | 3.23in | 0in |
| Sep | 73°F | 58°F | 3.56in | 0in |
| Oct | 62°F | 48°F | 4.03in | 0.2in |
| Nov | 52°F | 38°F | 3.66in | 0.7in |
| Dec | 42°F | 29°F | 4.3in | 9in |
May, Jun, Jul, Aug, and Sep are the best time to see Somerville at its mildest; the rest of the year, plan around Jan's cold.
Rain and snow in Somerville
Somerville averages 43.59in of precipitation a year across roughly 128 days with measurable rain or snow, and 49.2in of snow a year.
Where Somerville ranks
Somerville ranks 3664 of 4876 US cities in this dataset for comfort score, and 34 of 58 within MA. About 82,149 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Boston Logan Intl Ap, MA US, 5.1 miles from Somerville, not a prediction for any specific day.
More on how this is worked out
What a 30-year climate normal actually is · Why this uses the nearest NOAA station