Chart 2 of 3
Temperature vs Mosquito Activity Level
Activity index (0–100) across the full temperature range. Mosquitoes become active above 10°C (50°F) and reach peak activity between 25°C–30°C (77°F–86°F). Activity declines above 35°C due to heat stress.
Dormant Zone: Below 10°C
Active Range: 10°C–35°C
Peak Zone: 25°C–30°C
Heat Stress: Above 35°C
Sources: CDC, WHO, peer-reviewed entomology research