The Climate of Knoxville, TN

Knoxville, Tennessee, located in the southeastern United States, experiences a climate characterized by its distinct seasonal variations and geographical influences. This comprehensive guide explores the climate of Knoxville in detail, including its general characteristics, seasonal variations, and the impact of local geography.

Overview of Knoxville’s Climate

Knoxville’s climate is classified as humid subtropical, with influences from both continental and marine air masses. This results in a climate with four distinct seasons, including hot, humid summers, mild to cool winters, and moderate spring and fall seasons.

Key Climate Characteristics

  • Temperature: Knoxville experiences a wide range of temperatures throughout the year.
  • Precipitation: The city receives a moderate amount of rainfall, with seasonal variations.
  • Humidity: The area is known for high humidity levels, especially in the summer months.
  • Seasonal Variation: Knoxville sees significant changes in weather patterns with each season.

Seasonal Climate Overview

Spring (March to May)

Temperature and Weather Patterns

Spring in Knoxville is characterized by mild temperatures and increasing warmth. Average high temperatures range from the mid-50s to the mid-70s Fahrenheit, while lows typically range from the mid-30s to mid-50s.

  • March: The beginning of spring is cool, with average highs around 55°F (13°C) and lows around 35°F (2°C).
  • April: Temperatures rise, with highs averaging 65°F (18°C) and lows around 45°F (7°C).
  • May: Spring reaches its peak, with highs often reaching 75°F (24°C) and lows around 55°F (13°C).

Precipitation

Spring is a relatively wet season, with April being the wettest month. Rainfall averages around 4 inches (102 mm) per month during spring, with occasional thunderstorms and showers.

Summer (June to August)

Temperature and Weather Patterns

Summers in Knoxville are hot and humid, with temperatures frequently exceeding 85°F (29°C). Average highs range from the upper 80s to low 90s Fahrenheit, while lows are typically in the 60s and 70s.

  • June: The start of summer brings high temperatures around 85°F (29°C) and lows in the mid-60s (18°C).
  • July: This is usually the hottest month, with highs averaging 90°F (32°C) and lows around 70°F (21°C).
  • August: Temperatures remain high, with averages around 88°F (31°C) for highs and 68°F (20°C) for lows.

Precipitation

Summer is a relatively wet period, with July being the peak of the rainfall season. Average monthly rainfall is around 4.5 inches (114 mm), and the city experiences frequent afternoon thunderstorms.

Fall (September to November)

Temperature and Weather Patterns

Fall in Knoxville is marked by gradually cooling temperatures and lower humidity. Average highs range from the mid-70s to mid-50s Fahrenheit, while lows drop to the 40s and 30s.

  • September: Early fall remains warm, with highs around 75°F (24°C) and lows in the 50s (10-15°C).
  • October: Temperatures decrease further, with highs around 65°F (18°C) and lows in the 40s (4-10°C).
  • November: The transition to winter brings cooler temperatures, with highs averaging 55°F (13°C) and lows around 35°F (2°C).

Precipitation

Fall is moderately wet, with rainfall averaging around 4 inches (102 mm) per month. The frequency of thunderstorms decreases, but the city can still experience occasional rainy days.

Winter (December to February)

Temperature and Weather Patterns

Winters in Knoxville are relatively mild compared to other regions. Average high temperatures range from the upper 40s to mid-50s Fahrenheit, while lows are typically in the 20s and 30s.

  • December: Winter begins with highs around 50°F (10°C) and lows in the 30s (1-4°C).
  • January: The coldest month, with highs averaging 45°F (7°C) and lows around 30°F (-1°C).
  • February: Temperatures start to warm, with highs around 50°F (10°C) and lows in the mid-30s (1-4°C).

Precipitation

Winter precipitation in Knoxville includes rain and occasional snow. Average monthly snowfall is around 3 inches (76 mm), with January typically receiving the most snow. Rainfall averages around 4 inches (102 mm) per month during winter.

Local Climate Influences

Geographical Factors

Knoxville’s climate is influenced by several geographical factors:

  • Elevation: Knoxville’s elevation is around 880 feet (268 meters) above sea level, which affects temperature and precipitation patterns.
  • Proximity to the Smoky Mountains: The nearby Great Smoky Mountains contribute to variations in local weather, including increased rainfall and cooler temperatures in higher elevations.

Urban Heat Island Effect

The urban heat island effect is noticeable in Knoxville, with urban areas experiencing slightly higher temperatures compared to surrounding rural areas due to human activities and infrastructure.

Climate Change Impacts

Like many regions, Knoxville is experiencing the effects of climate change, including:

  • Increased Temperature Variability: Higher average temperatures and more frequent heatwaves.
  • Changes in Precipitation Patterns: Variations in rainfall patterns, including more intense storms and changes in seasonal precipitation.

Climate Data Table

SeasonAverage High Temp (°F)Average Low Temp (°F)Average Precipitation (inches)Average Snowfall (inches)
Spring55-7535-554.00.0
Summer85-9065-704.50.0
Fall55-7535-554.00.0
Winter45-5520-354.03.0

Conclusion

Knoxville’s climate is defined by its humid subtropical characteristics, with distinct seasonal changes that impact local weather patterns. From hot, humid summers to mild winters and moderate spring and fall seasons, Knoxville experiences a range of temperatures and precipitation levels throughout the year. Understanding the city’s climate is crucial for residents and visitors alike, influencing everything from daily activities to long-term planning and environmental considerations.

Find us

Knoxville Water Damage Restoration
5507 Ball Camp Pike, Knoxville, TN 37921, United States
Working Hours – 24/7/365
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
10 am – 10 am
10 am – 10 am
10 am – 10 am
10 am – 10 am
10 am – 10 am
10 am – 10 am
10 am – 10 am