Waterville Average Rainfall by Month

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

Average temperature by month

What's the Rainiest Month in Waterville?

In Waterville, October has the greatest precipitation of any month. On average, Waterville gets 4.9 inches of precipitation in October.

However, June is the month with the greatest chance of precipitation. 42.9% of days in June will have at least some rain.

What's the Driest Month in Waterville?

In Waterville, February has the least precipitation of any month. On average, Waterville gets 2.61 inches of precipitation in February.

March is the month with the lowest chance of precipitation. 31.9% of days in March will have measurable rain or snow.

Month	Precipitation	% Chance
January	3.06 in	34.0
February	2.61 in	33.2
March	3.05 in	31.9
April	3.68 in	37.6
May	3.17 in	41.0
June	3.87 in	42.9
July	3.40 in	39.5
August	3.44 in	34.0
September	3.79 in	33.9
October	4.88 in	38.7
November	3.85 in	37.4
December	3.91 in	38.9
Year	42.46 in	36.9

Weather Station Details

Years	Station	Coordinates
1958–2024	Waterville Treatment Plant	location
1895–1958	Waterville WWTP	location