You can actually split wet logs using a firewood splitter, but the best time to do this is after several warm days when possible because that will speed up the drying process tremendously! You'll have better luck with dryer splits if you try and stack your cut pieces together in a sunny location out of any wind tunnels so they can lose moisture faster while being exposed to oxygen at all angles. It's also important not to forget about air circulation or stacking too tightly since these factors affect how quickly your logs reach equilibrium. If you've been thinking about getting a log compressor then now would be a good time since wetter woods may need extra help reaching proper EMC levels for indoor storage.