Trump leads the poll, 46-45, with Libertarian Gary Johnson following at 4 percent and Green Party candidate Jill Stein at 1 percent.
The former Secretary of State came out ahead by five points, 39-34, among likely voters in a recent poll from Arizona Republic/Morrison Institute for Public Policy/Cronkite News.
Monmouth University has not recently polled the general election in Arizona.
The Monmouth University poll surveyed 401 likely Arizona voters via live telephone interview from Oct. 21-24, with a margin of error of plus or minus 4.9 percent.
TPM's PollTracker Average for the presidential election in Arizona shows a tossup, with Trump leading Clinton, 43 to 42.6.