You can mow damp grass with a reel mower. If you wait for the grass to dry, it may grow too high for you to cut with your reel mower. However, wet grass clumps and the blades cannot cut it cleanly. Use sharp blades to do the least amount of damage.
About this Author
Lee Roberts has written professionally in different capacities throughout her career. She has written for not-for-profit and commercial entities since she received her B.A in sociology from the University of Michigan in 1986. She has been published on eHow.com. She is currently writing an extensive work of fiction.