Webster City Average Rainfall by Month

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

Average temperature by month

What's the Rainiest Month in Webster City?

In Webster City, June has the greatest precipitation of any month. On average, Webster City gets 5.8 inches of precipitation in June.

However, May is the month with the greatest chance of precipitation. 41.4% of days in May will have at least some rain or snow.

What's the Driest Month in Webster City?

In Webster City, January has the least precipitation of any month. On average, Webster City gets 0.90 inches of precipitation in January.

January is also the month where rain is least common. 18.3% of days in January will have measurable rain or snow.

Month	Precipitation	% Chance
January	0.90 in	18.3
February	1.20 in	22.1
March	1.90 in	23.8
April	3.69 in	32.9
May	5.26 in	41.4
June	5.76 in	38.8
July	4.41 in	27.4
August	4.87 in	29.0
September	3.29 in	25.8
October	2.65 in	25.5
November	1.67 in	18.8
December	1.34 in	19.7
Year	36.84 in	27.0

Weather Station Details

Years	Station	Coordinates
1893–2024	Webster City	location