How to make winter/summer insulatuion apply outside of season?

[VerryMerryBerry]

I have been working on making a character mod where they get stronger if they can keep their temperature above 60 degrees, though it becomes very difficult to do that during late spring/early autumn where winter insulation can't be used. I looked around the forums and couldn't find anything about how to change this for a character, though I did find the code that makes it happen within the game. I thought to try copying it into my character's file and edit it, but it causes the game to crash so I figured it shouldn't go there. Any ideas on how to do this?

Spoiler

-- Winter insulation only affects you when it's cold out, summer insulation only helps when it's warm
        if ambient_temperature >= TUNING.STARTING_TEMP then
            -- it's warm out
            if self.delta > 0 then
                -- If the player is heating up, defend using insulation.
                local winterInsulation, summerInsulation = self:GetInsulation()
                self.rate = math.min(self.delta, TUNING.SEG_TIME / (TUNING.SEG_TIME + summerInsulation))
            else
                -- If they are cooling, do it at full speed, and faster if they're overheated
                self.rate = math.max(self.delta, self.current >= self.overheattemp and -TUNING.THAW_DEGREES_PER_SEC or -TUNING.WARM_DEGREES_PER_SEC)
            end
        -- it's cold out
        elseif self.delta < 0 then
            -- If the player is cooling, defend using insulation.
            local winterInsulation, summerInsulation = self:GetInsulation()
            self.rate = math.max(self.delta, -TUNING.SEG_TIME / (TUNING.SEG_TIME + winterInsulation))
        else
            -- If they are heating up, do it at full speed, and faster if they're freezing
            self.rate = math.min(self.delta, self.current <= 0 and TUNING.THAW_DEGREES_PER_SEC or TUNING.WARM_DEGREES_PER_SEC)
        end