LaSalle Parish Climate
LaSalle Parish, Louisiana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
65.0°F
Annual Precip
58.6"
Annual Snowfall
0.3"
Extreme Heat Days
83
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
6,033
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: LaSalle Parish
Climate Verdict
LaSalle Parish has a warm, averaging 65.0°F year-round, very wet conditions receiving 58.6 inches of precipitation annually, significant summer heat with 82.7 days annually above 90°F, light snow averaging 0.3 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 46.6°F. summers are hot, with July averaging 81.5°F. The 35°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
LaSalle Parish closely matches the Louisiana statewide average temperature of 67.0°F, it is somewhat drier than average for Louisiana.
Climate Profile
About LaSalle Parish Weather
Warm Temperatures and Heavy Rain
LaSalle Parish averages 65.0°F annually, which is roughly 10 degrees warmer than the national median. The area is also quite wet, recording 58.6 inches of annual precipitation.
Cooler than Southern Louisiana
At 65.0°F, LaSalle is cooler than the Louisiana state average of 67.0°F. It also receives 58.6 inches of rain, which is slightly less than the statewide average of 60.8 inches.
Similar to Northern Neighbors
LaSalle Parish shares a similar climate to Lincoln Parish, which averages 64.8°F. Both parishes sit in the interior of the state, away from the moderating influences of the Gulf of Mexico.
Prolonged Heat and Brief Chills
The parish experiences 83 extreme heat days above 90°F and a summer average of 80.5°F. Winters are cooler than the coast, with a January average of 46.6°F and 0.3 inches of annual snow.
Balance Cooling and Winter Prep
Residents should prepare for 83 days of extreme heat with reliable cooling systems. Because winter temperatures average 48.7°F, seasonal clothing and home insulation are important for the cooler months.
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.