I think its sunburn, I have other cucurbit plants do this also. Its wicked hot right now. As for your cucs not growing past an inch I would assume its a pollination issue. I get baby cukes and squashes all the time that the pollination doesnt seem to take. Cucumber blossoms are so small that hand pollination is hard too. You need bees, wasps or other pollinators to do that work for you. Also all my cucumber plants were trellised vertically and the plants died starting with the lowest leaves and working upward. Neem oil is good for preventing this. I believe its a combination of squash bugs, white powdery mildew and inconsistent watering!

"or if I notice they are a little wilted" Curcubits don't stand moisture stress very well. By the time they are wilting, it's already too late. How much damage? Depends on the extent of the stress, but at minimum wilting due to moisture stress will lead to bitter cucumbers. Consistent watering is key, and with your clay soil deep watering is preferable. Add a bit of compost tea or fish emulsion into a bi-weekly, 5 gallon deep watering and you will see a real boost. Steve Solomon calls it "fertigation".

I know that sick feeling all too well!! Eight weeks ago I picked a wood and color that I loved. It's a warm wood tone on beech with rustic knots. It's been so many weeks since I've since it that I began panicing all this week as the cabinets were scheduled to arrive. I was freaking out thinking I had ordered cabinets so rustic that I would need to hang antlers in the kitchen just to 'carry on the theme'!! :-) I've seriously lost sleep over this! Well, they arrived this afternoon and all my fears are gone - - they are stunning! With just the right amount of rustic to look Old World and the warm wood tones are gorgeous. I, too, have a creamy colored island and it's beautiful. Let's just hope it all comes together as pretty in real life as it is in my head! :-) I had visions of a creamy white kitchen as well, but when it didn't go with anything else in my house, I knew I had to lose the dream. But pictures of creamy kitchens will always make my heart beat quicker!! I hope you grow to LOVE your new kitchen - cherry wood and all! I look forward to seeing pictures!

Is it possible that my issue could be excessive N? http://www.haifa-group.com/knowledge_center/crop_guides/cucumber/plant_nutrient_functions/ I found another site that said to mix an Epsom salt solution and spray it directly on the foliage for Mg deficiency. I did that a few days ago but the plant continues to go downhill.