Waller County Climate
Waller County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
69.1°F
Annual Precip
43.9"
Annual Snowfall
0.0"
Extreme Heat Days
107
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
Minimum winter temperature range for plant survival
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Waller County
Climate Verdict
Waller County has a warm, averaging 69.1°F year-round, moderately wet with 43.9 inches of annual precipitation, significant summer heat with 106.5 days annually above 90°F, virtually no measurable snowfall. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 51.8°F. summers are hot, with July averaging 84.0°F. The 32°F seasonal variation provides noticeable but manageable change. January is typically the coldest month and August the warmest.
Outdoor & Gardening Guidance
Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.
Regional Context
Waller County is 3.6°F warmer than the Texas statewide average of 65.5°F, it is also noticeably wetter, receiving 12.0 inches more precipitation than the state average.
Frequently Asked Questions
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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.