Rain to Snow Calculator
Convert between rain and snow amounts based on temperature and atmospheric conditions
Rain ↔ Snow Conversion Calculator
Amount of rainfall to convert
Temperature affects snow density and conversion ratio
Conversion Results
Temperature Analysis
Current: 25.0°F / -3.9°C
Range: 20-27°F (-7 to -3°C)
Snow Type: Moderate snow
Weather Conditions
Formula: Snow = Rain × Snow Coefficient
Note: Snow coefficients range from 0.1 (wet conditions) to 100+ (extremely cold, dry conditions)
Quick Examples
Temperature Guide & Snow Coefficients
| Temperature Range | Coefficient | Snow Type |
|---|---|---|
| 34°F+ (1°C+) | 0.1 | Mostly rain, wet snow possible |
| 27-34°F (-3 to 1°C) | 10 | Heavy, wet snow |
| 20-27°F (-7 to -3°C) | 15 | Moderate snow |
| 15-19°F (-9 to -7°C) | 20 | Light, fluffy snow |
| 10-14°F (-12 to -10°C) | 30 | Dry, powdery snow |
| 0-9°F (-18 to -13°C) | 40 | Very dry, light snow |
| -20 to -1°F (-29 to -18°C) | 50 | Extremely dry, powder snow |
| Below -20°F (Below -29°C) | 100 | Ultra-light, dry powder |
Snow Facts
Average Ratio
1 inch rain = 10 inches snow
General rule of thumb
Freezing Point
32°F (0°C)
Critical temperature threshold
Powder Snow
50:1 ratio possible
Very cold conditions
Weather Tips
Colder temperatures produce lighter, fluffier snow
Warmer conditions create heavier, wetter snow
Wind and humidity also affect snow density
Above 34°F, expect mostly rain with little snow
Understanding Rain to Snow Conversion
What Affects Snow Ratio?
The ratio of rain to snow depends on several atmospheric factors. Temperature is the primary factor, but humidity, wind chill, and atmospheric lift also play important roles in determining how much snow will fall from a given amount of precipitation.
Why Does Temperature Matter?
- •Colder air holds less moisture, creating lighter snow crystals
- •Warmer conditions produce denser, heavier snow
- •Temperature determines crystal structure and density
- •Above freezing, snow melts before reaching ground
Calculation Method
Snow = Rain × Snow Coefficient
Rain = Snow ÷ Snow Coefficient
- Snow Coefficient: Temperature-dependent multiplier
- Range: 0.1 (warm) to 100+ (extremely cold)
- Standard: 10:1 ratio is commonly used average
Remember: This calculator provides estimates. Actual snow amounts can vary based on local microclimate conditions, elevation, and storm dynamics.
Practical Applications
🌨️ Weather Forecasting
Predict snow accumulation from precipitation forecasts
🏂 Winter Sports
Estimate fresh powder for skiing and snowboarding
🚛 Snow Removal
Plan snow clearing operations and resource allocation