Pack or skip
Insect repellent for Baltimore in May
Verdict
Pack it
Warm (74°F) plus 11 rainy days = mosquito conditions.
Why
Baltimore in May averages highs of 74°F, lows of 52°F, 11 rainy days.
That climate means insect repellent earns its space in the bag. Warm (74°F) plus 11 rainy days = mosquito conditions.