Pack or skip
Insect repellent for Philadelphia in June
Verdict
Pack it
Warm (83°F) plus 10 rainy days = mosquito conditions.
Why
Philadelphia in June averages highs of 83°F, lows of 63°F, 10 rainy days.
That climate means insect repellent earns its space in the bag. Warm (83°F) plus 10 rainy days = mosquito conditions.