  The magnetic nature of low dimensional compound, CrCl$_3$, was investigated
by muon spin rotation, relaxation and resonance ($\mu^+$SR). The $\mu^+$SR
measurements revealed three distinct phases as a function of temperature: an
antiferromagnetic state (AF) for $T\leq T_{\rm N}=14.32(6)$~K, a ferromagnetic
short range ordered state (FM-SRO) for $T_{\rm N}<T<\sim18$~K and a
paramagnetic phase (PM) above $\sim18$~K. Moreover, the AF state exhibits
appreciable spin dynamics, which increases with decreasing temperature below
$T_{\rm N}$. These dynamics originate from out of plane fluctuations, which
seem to settle for $9.5$~K$\leq T\leq T_{\rm N}$, evidenced from measurements
in ZF and complementary local field calculations. Moreover, the presented muon
Knight shift measurements just above $T_{\rm N}$ represent a clear microscopic
evidence for the absence of the previously speculated long range quasi-2D FM
order.
