Table compares two 10-year periods with the number of days when temperatures were between 50-95°F with a relative humidity of 42% or more. Studies by the National Institutes of Health say those are conditions when mosquitoes survive best.
| Location | Average 1980-89 | Average 2010-19 | Additional Days |
|---|---|---|---|
| State College, Pa. | 111 | 138 | 27 |
| Wilkes Barre, Pa. | 116 | 135 | 19 |
| Harrisburg, Pa. | 142 | 158 | 16 |
| Allentown, Pa. | 128 | 142 | 14 |
| Atlantic City, N.J. | 142 | 155 | 13 |
| Wilmingon, Del. | 148 | 158 | 10 |
| Philadelphia, Pa. | 153 | 163 | 10 |
| Newark, N.J. | 154 | 161 | 7 |
