I checked records. In the past year, we have received 11 rains of one inch or more. Only one 24 hour rainfall was over two inches, at 2.28 inches. Most were simply "grass growing rains", with no runoff. Yet, my new 1/4 acre pond has stayed mostly full or near full, with approximately a 2:1 watershed.

Our total for the year is 50.81 inches at my station, but the average rain was small.