Hillsboro Average Rainfall by Month

This page shows the average precipitation (including snowfall) in each month of the year in Hillsboro, Texas. It is based on NOAA data for the years 1991–2020.
What's the Rainiest Month in Hillsboro?
In Hillsboro, October has the greatest precipitation of any month. On average, Hillsboro gets 4.9 inches of precipitation in October.
However, May is the month with the greatest chance of precipitation. 27.7% of days in May will have at least some rain.
What's the Driest Month in Hillsboro?
In Hillsboro, July has the least precipitation of any month. On average, Hillsboro gets 1.65 inches of precipitation in July.
July is also the month where rain is least common. 13.4% of days in July will have measurable rain.
Month Precipitation % Chance
January 2.80 in 24.0
February 2.77 in 25.0
March 3.57 in 25.7
April 3.68 in 23.8
May 4.55 in 27.7
June 3.61 in 22.0
July 1.65 in 13.4
August 2.18 in 14.4
September 3.15 in 18.7
October 4.87 in 22.2
November 2.73 in 22.8
December 3.09 in 23.9
Year 38.14 in 21.9
Weather Station Details
Years Station Coordinates
1903–2024 Hillsboro location