Using 52 rainfall amounts for Sundays in Boston, a test of the claim that > 0

Using 52 rainfall amounts for Sundays in Boston, a test of the claim that μ > 0 in. results in a P-value of 0.0091. What does the P-value suggest about the claim? In general, what does the following memory aid suggest about the interpretation of P-values: “If the P is low, the null must go. If the P is high, the null will fly.”