Brockton Average Rainfall by Month

This page shows the average precipitation (including snowfall) in each month of the year in Brockton, Massachusetts. It is based on NOAA data for the years 1991–2020.

Average temperature by month

What's the Rainiest Month in Brockton?

In Brockton, March has the greatest precipitation of any month. On average, Brockton gets 5.3 inches of precipitation in March.

However, May is the month with the greatest chance of precipitation. 41.3% of days in May will have at least some rain.

What's the Driest Month in Brockton?

In Brockton, July has the least precipitation of any month. On average, Brockton gets 3.22 inches of precipitation in July.

August is the month with the lowest chance of precipitation. 30.0% of days in August will have measurable rain.

Month	Precipitation	% Chance
January	4.02 in	35.5
February	3.62 in	37.4
March	5.32 in	38.8
April	4.60 in	41.1
May	3.44 in	41.3
June	4.13 in	38.1
July	3.22 in	31.1
August	3.65 in	30.0
September	4.07 in	31.4
October	5.10 in	36.8
November	4.39 in	36.7
December	5.06 in	39.7
Year	50.52 in	36.5

Weather Station Details

Years	Station	Coordinates
1894–2024	Brockton	location