It depends a lot on how often you fly.
The average TT is ~ 20 hours.
IMHO, flying a minimum once a week is highly desirable otherwise one just goes rusty.
You can do 20hrs between now and April, easily.
The conditions are not required to be VFR, which helps. For example I have been doing the FAA IR to JAA IR conversion, at an airport which has an 800ft decision height, and have so far done ~16hrs (only the 170A and the test to do now), and flying 2x a week I have not lost a single lesson due to weather. Most of the flights were in non-VFR conditions, and most in some rain.
But what has helped a lot is the unusually warm temperatures we are getting. It is was below zero at a few thousand feet, extended flight in IMC is a no-no in a spamcan.