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Tool: Wind Chill Calculator — NWS Wind Chill Temperature | Printed on:
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Wind Chill Calculator — NWS Wind Chill Temperature
Calculate apparent "feels like" winter temperature based on air temperature and wind speed.
AI Generated Visual
UTILITY COMPUTATION
More in Weather & Atmosphere:
Project Specifications
National Weather Service Wind Chill Formula
Transparent mathematical methodology explained in plain English.
WC = 35.74 + 0.6215T - 35.75(V^0.16) + 0.4275T(V^0.16) Valid for air temperatures T at or below 50°F and wind speeds V above 3 mph.
Variables Explained:
- T: Air temperature in degrees Fahrenheit (°F).
- V: Wind speed in miles per hour (mph).
Real Project Example
Air Temperature 20°F with 25 MPH Sustained Wind
NWS calculation.
Sample Project Inputs:
Temperature: 20°F
Wind Speed: 25 mph
Step-by-Step Calculation:
- V^0.16 = 25^0.16 = 1.670.
- WC = 35.74 + (0.6215 × 20) - (35.75 × 1.670) + (0.4275 × 20 × 1.670).
- WC = 35.74 + 12.43 - 59.70 + 14.28 = 2.75°F.
Calculated Answer: Wind Chill feels like +3°F.
Knowledge Base
Frequently Asked Questions: Wind Chill Calculator
Click any question below to expand quick answers, formulas, and expert tips.
Can inanimate objects freeze below the actual air temperature?
No. Wind chill accelerates heat loss until an object matches the ambient air temperature, but an object can never cool below the actual air temperature regardless of wind speed.