Chelmsford (MA) Precipitation: Average Monthly Rainfall and Snowfall
This graph shows the average amount of rainfall per month in Chelmsford (Massachusetts). The numbers are calculated over a 30-year period to provide a reliable average.
- A lot of rain (rainy season) falls in the months: February, March, May, June, July, August, October and December.
- On average, October is the wettest month with 129 mm of precipitation.
- On average, January is the driest month with 88 mm of precipitation.
- The average amount of annual precipitation is 1278 mm.
Current rainfall in Chelmsford (MA)
overcast and heavy rain
almost clear and no rain
partly cloudy and no rain