Pack or skip
Insect repellent for Washington DC in June
Verdict
Pack it
Warm (86°F) plus 10 rainy days = mosquito conditions.
Why
Washington DC in June averages highs of 86°F, lows of 67°F, 10 rainy days.
That climate means insect repellent earns its space in the bag. Warm (86°F) plus 10 rainy days = mosquito conditions.