It's best to go there if it's not raining or snowing. Since it's open place, it might actually be colder depending on the forecast.
I am not in PA anymore, but i think it will be less people because of schools
Summer time is the best
It should be fine on Tuesday.
Yes tomorrow is to be warmer than it's been in the last two weeks.
Less people is right
Any day is a good idea.
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