There's no "good time" to do this work - however, this might be one of the better times of the year for weather weenies:
Severe weather season has passed it's peak
Tropical hasn't reached it's prime season
Avoids winter months when people would complain loudly
Sure, weather of significance can happen at any time. Having said that, we're in a quieter period for active weather. Hopefully that remains true over the next few weeks.