Remember the cardinal rule of riding in bad weather:
Conditions always seem worse from inside a warm house than they do from the saddle of your bike. If you get out there, properly equipped, cycling is not only possible, it’s fun. Some of your most memorable rides will be rainy ones.
And think of the psychological boost you’ll get from training in bad conditions. You’re riding and getting fitter while everyone else is cowering inside, moaning about the weather. You’re learning essential wet-road bike-handling techniques, too.
As the old saying goes, you’d better train in the rain because someday you’ll be racing in it (or riding a century in it, or touring in it).
But, OK — there’ll be some days when even a bombproof attitude won’t get you out the door. When the gale is too nasty or roads are dangerously slippery, it’s smarter to train indoors.
The best indoor workouts for April and May in a regular year are intense and short. Get on the trainer, warm up for 15 minutes, do a structured interval workout, cool down for 10 minutes, and shower. In most cases, 60 minutes is the maximum you should ever spend. You’ll find plenty of workouts like that using almost any smart trainer app like The Sufferfest, Zwift or Trainer Road.