Pack or skip
Insect repellent for Boston in July
Verdict
Pack it
Warm (83°F) plus 9 rainy days = mosquito conditions.
Why
Boston in July averages highs of 83°F, lows of 67°F, 9 rainy days.
That climate means insect repellent earns its space in the bag. Warm (83°F) plus 9 rainy days = mosquito conditions.