Lamar County Climate
Lamar County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
65.0°F
Annual Precip
48.9"
Annual Snowfall
—
Extreme Heat Days
96
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8a
Minimum winter temperature range for plant survival
6,223
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Lamar County
Climate Verdict
Lamar County has a warm, averaging 65.0°F year-round, moderately wet with 48.9 inches of annual precipitation, significant summer heat with 95.7 days annually above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 43.4°F. summers are hot, with July averaging 85.3°F. The 42°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.
Regional Context
Lamar County closely matches the Texas statewide average temperature of 65.5°F, it is also noticeably wetter, receiving 17.0 inches more precipitation than the state average.
Climate Profile
About Lamar County Weather
A Warm Humid Subtropical Climate
Lamar County maintains an average annual temperature of 65.0°F, placing it significantly higher than the national median. This climate provides a long growing season and consistent warmth throughout the year.
Typical Temperatures for the Lone Star State
The county's 65.0°F average temperature sits just below the Texas state average of 65.5°F. While it mirrors the state's warmth, it receives 48.9 inches of rain annually, which is much higher than the state average of 31.9 inches.
Lamar's Unique Rainfall Patterns
With nearly 49 inches of annual precipitation, Lamar is significantly wetter than its western neighbors. This moisture fuels a July average of 85.3°F and maintains the humid characteristics of Northeast Texas.
Long Summers and Frequent Heat
Residents face 96 extreme heat days per year where temperatures reach or exceed 90°F. While snowfall data is limited for this area, the winter average of 45.7°F ensures that cold snaps are generally short-lived.
Preparing for Humidity and High Heat
Effective HVAC systems are essential to handle 96 days of 90-degree weather. Additionally, the high annual rainfall of 48.9 inches requires residents to maintain clear drainage systems and invest in durable rain gear.
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.