Wind Chill Calculator
Calculate wind chill temperatures and get safety recommendations for cold weather conditions
Weather Conditions
Enter temperature and wind speed
Wind Chill Reference
Temperature and wind speed effects
Risk Levels
Wind Chill Facts
• Wind chill applies when temp ≤ 50°F (10°C)
• Requires wind speed ≥ 3 mph (5 km/h)
• Based on heat loss from exposed skin
• Used by NWS for weather warnings
Safety Tips
• Dress in layers
• Keep dry - wet clothing dangerous
• Cover exposed skin
• Watch for frostbite signs
• Stay hydrated
Wind Chill Formula & Information
National Weather Service Formula
WC = 35.74 + 0.6215×T - 35.75×V^0.16 + 0.4275×T×V^0.16
Where:
• WC = Wind Chill (°F)
• T = Air Temperature (°F)
• V = Wind Speed (mph)
• Valid for T ≤ 50°F and V ≥ 3 mph
Important Notes
• Wind chill is calculated for shaded areas
• Based on heat loss from exposed human skin
• Assumes walking speed of 3.1 mph
• Does not account for sun exposure
• More accurate than older formulas
Signs of Cold Weather Injury
Frostbite: Numbness, white/grayish skin, skin that feels unusually firm or waxy
Hypothermia: Shivering, exhaustion, confusion, fumbling hands, memory loss, slurred speech
If symptoms occur: Get medical attention immediately, move to warm area, remove wet clothing