The Permian Basin stretching across West Texas including Midland, Odessa, and surrounding rural areas, has a semi-arid desert climate. Hot summers, low humidity, and limited rainfall make mosquito activity different from more humid regions of Texas. Here, mosquito populations rise and fall based on rare rain events, irrigation runoff, and temperature extremes.
Mosquito season typically begins in late spring when nighttime temperatures stay above 50°F. Though drier than East Texas, standing water from thunderstorms, livestock troughs, oilfield equipment, and irrigation canals creates ideal breeding conditions.
Spring (March–May)
Limited winter precipitation followed by warmer days triggers early mosquito emergence.
Rainfall is sporadic, but when it occurs, floodwater mosquitoes hatch quickly in roadside ditches, cattle tanks, and ranch pastures.
Warm, dry winds can temporarily reduce activity.
Summer (June–August)
Long, hot summers define the Permian Basin. Temperatures often exceed 95–100°F.
Extreme heat can slow mosquito survival unless moisture is present.
After summer thunderstorms or irrigation water pooling, mosquito populations spike within 5–7 days—especially around farms, oilfield yards, and residential areas with standing water.
Culex species thrive in livestock water tanks and stagnant urban drainage areas at night.
Fall (September–October)
Temperatures drop slightly, making conditions more favorable for mosquito survival.
Late-season rains and cooler evenings often create a secondary mosquito surge.
Activity slows only when nighttime lows fall below the 50°F threshold.
Winter (November–February)
Cold, dry conditions suppress activity.
Eggs from Aedes species overwinter in soil or containers, waiting for spring rainfall.
