Precipitation Intensity
Apollo Weather calculates precipitation intensity for hourly forecasts as follows.
Rain Precipitation
Light Rain
0.098 inches (2.49 mm) or less per hour.
Moderate Rain
More than 0.098 inches (2.5 mm) and less than 0.3 inches (7.62 mm) per hour.
Heavy Rain
More than 0.3 inches (7.62 mm) per hour.
Snow Precipitation
Light Snow
Over 5/8 mile (1.0 km) visibility and snow falling at less than 0.04 inches (1.0 mm) per hour.
Moderate Snow
1/2 mile (0.8 km) to 1/4 mile (0.4 km) visibility and snow falling between 0.04 inches (1.0 mm) and 0.098 inches (2.5 mm) per hour.
Heavy Snow
1/4 mile (0.4 km) or less of visibility and snow falling at more than 0.04 inches (1.0 mm) per hour.