About personal dangerous tolerance, I am the wrong fellow to follow often enough .... but I won't send someone else into the way of fire either -- unless they want a lesson.
Early March should be ok, but could be a gamble. Even this week, look at the weather in PDP. It can be cooler or hotter than average and that variability is what gives me some hesitation about PDP for heat-lovers -- especially when going past February. (Note: I am a mountain/snow-lover. I don't know what is "too cold" for me.

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I know more about PDP from December through January than about PDP in February and March, so I may have too few data points. Perhaps someone who has spent more time then has better info. Anyone? Anyone?