Williamston Average Rainfall by Month

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

Average temperature by month

What's the Rainiest Month in Williamston?

In Williamston, September has the greatest precipitation of any month. On average, Williamston gets 6.9 inches of precipitation in September.

However, July is the month with the greatest chance of precipitation. 36.5% of days in July will have at least some rain.

What's the Driest Month in Williamston?

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

October is the month with the lowest chance of precipitation. 26.5% of days in October will have measurable rain.

Month	Precipitation	% Chance
January	3.69 in	35.2
February	3.22 in	34.4
March	4.13 in	36.3
April	3.75 in	32.9
May	3.69 in	33.5
June	5.12 in	33.2
July	5.75 in	36.5
August	5.70 in	34.9
September	6.92 in	34.2
October	4.20 in	26.5
November	3.39 in	28.2
December	3.56 in	35.1
Year	52.98 in	33.4

Weather Station Details

Years	Station	Coordinates
1930–2024	Williamston 1 E	location