Can a garden get too much rain?

I live in an area too that has clay soil. Yes, it is possible for a garden to get too much rain! That happened to all us area gardeners last year's growing season. With too much rain, the heavy clay soil gets compacted even more. None of my veggie plants did well in the garden last year...same for all my neighbors. I'm a farmer and have large fields of corn growing (acres & acres), last year we planted the corn and because of the rains it rotted in the ground before ever starting to grow. Planted a second time and the same thing happened. The 3rd time was almost just as bad, only a few of the seeds took off and produced plants, and those that did grow were poor quality. I think the answer for those of us with clay soil is to make sure we have added compost, sand, humus, etc, to make the drainage better so they don't sit in so much water. For draught years, I plant a plastic 2 liter bottle up to it's neck in the ground next to the plant, or in the middle of a few plants. With the bottom cut off, and the lid off, it's kind of like a giant funnel, and when you water or feed the plants, it goes straight to the roots where it's needed. I'm often asked how my garden can be so lush in a draught, and this is how I do it and not waste water with it. One 'funnel' fill up morning and night is all it ever needs because it's going directly to the roots.

Clay is not the most absorbent of soils, and it might be better in future to keep a compost bin and dig the resulting compost into your garden to break up the clay a little. I'm not sure what to tell you here, but as long as the rain isn't holding on the top of the soil, you should be ok with your garden, but if it's lying for long periods your plants may suffer water damage. I wish you all the luck in the world with it and hope you have a beautiful garden as a result of your hard work. Brightest Blessings.