The Weather API includes a unitGroup parameter that allows you to specify the units that will be used when returning weather data. This article describes the units within each group. The API uses four group ids to indicate the units that will be used – us, metric, uk and base.
us – United States
Weather Variable Measurement Unit Temperature, Heat Index & Wind Chill Degrees Fahrenheit Precipitation Inches Snow Inches Wind & Wind Gust Miles Per Hour Visibility Miles Pressure Millibars Solar Radiation W/m2 Solar Energy MJ/m2 Soil Moisture Inches
metric – Metric
Weather Variable Measurement Unit Temperature, Heat Index & Wind Chill Degrees Celcius Precipitation Millimeters Snow Centimeters Wind & Wind Gust Kilometers Per Hour Visibility Kilometers Pressure Millibars (Hectopascals) Solar Radiation W/m2 Solar Energy MJ/m2 Soil Moisture Millimeters
uk – United Kingdom
Weather Variable Measurement Unit Temperature, Heat Index & Wind Chill Degrees Celcius Precipitation Millimeters Snow Centimeters Wind & Wind Gust Miles Per Hour Visibility Miles Pressure Millibars Solar Radiation W/m2 Solar Energy MJ/m2 Soil Moisture Millimeters
base – Base or scientific units
Weather Variable Measurement Unit Temperature, Heat Index & Wind Chill Kelvin Precipitation Millimeters Snow Centimeters Wind & Wind Gust Meters Per Second Visibility Kilometers Pressure Millibars Solar Radiation W/m2 Solar Energy MJ/m2 Soil Moisture Millimeters
