Q.Yellow cucumbers
My cukes never turned green..just yellow. I planted pumpkin right next to. Could this be why they’re not green? Or maybe not ripened yet? I only watered once a day but we did get a lot of rain for awhile. They seem to be growing really great just all of them never got green at all.
Since you mention heavy rain, I suspect a watering issue. Your container or soil may not be draining either fast enough. This can lead to yellowing of leaves and rotting of the fruit.
https://www.gardeningknowhow.com/edible/vegetables/cucumber/when-to-pick-a-cucumber-how-to-prevent-yellow-cucumbers.htm
https://www.gardeningknowhow.com/edible/vegetables/cucumber/cucumbers-in-containers.htm