Unit Explanations
The parameter units in the point request can be set to english, metric, or raw. Here is a lookup list of what units and precision those values will return.
English units
FORECAST VARIABLES
Temperature
Fahrenheit rounded to the nearest degree
Feels Like
Fahrenheit rounded to the nearest degree
Dewpoint
Fahrenheit rounded to the nearest degree
Relative Humidity
percentage rounded to the nearest 1% (0100%)
Wind_Direction (10m, 60m, 120m)
Degrees rounded to the nearest degree (0359) North is 0, East is 90, South is 180, and West is 270
Wind_Speed (10m, 60m, 120m)
Miles per hour rounded to the nearest mph
Wind_Gust
Miles per hour rounded to the nearest mph
Clouds
This is a derived value based on the overall cloudiness of a location by taking various relative humidity samples throughout the atmospheric column.
05 
Clear 
520 
Mostly Clear 
2070 
Partly Cloudy 
7090 
Mostly Cloudy 
>90 
Cloudy 
Accumulated Rain
Inches rounded to the nearest hundredth of an inch
Accumulated Snow
Inches rounded to the nearest tenth of an inch
Accumulated Ice
Inches rounded to the nearest hundredth of an inch
Supercell Index
1100 index rounded to the nearest digit
Traffic Index
1100 index rounded to the nearest digit
High Clouds
percentage rounded to the nearest 1% (0100%)
Mid Level Clouds1
percentage rounded to the nearest 1% (0100%)
Mid Level Clouds2
percentage rounded to the nearest 1% (0100%)
Low Clouds
percentage rounded to the nearest 1% (0100%)
Probability of Precipitation
percentage rounded to the nearest 1% (0100%)
RADAR VARIABLES
Precip Type
PrecipType Value 
Precipitation Type 
0 
No Precip 
1 
Rain 
2 
Mixed Precipitation 
5 
Snow 
3 and 4 
Reserved for Later Use 
Reflectivity
decibels rounded to the nearest digit
DBZ 
Precipitation Intensity 
010 
No Precipitation or Drizzle 
1025 
Light Precipitation 
2540 
Moderate Precipitation 
40+ 
Heavy Precipitation 

Level2 Reflectivity
decibels rounded to the nearest digit
DBZ 
Precipitation Intensity 
Less than 10 
No Precipitation or Drizzle 
1025 
Light Precipitation 
2540 
Moderate Precipitation 
40+ 
Heavy Precipitation 

Hailvision
Inches rounded to the nearest hundredth of an inch
Rainvision
Inches rounded to the nearest hundredth of an inch
Snowvision
Inches rounded to the nearest hundredth of an inch
Icevision
Inches rounded to the nearest hundredth of an inch
METRIC UNITS
FORECAST VARIABLES
Temperature
Celsius rounded to the nearest tenth of a degree
Feels Like
Celsius rounded to the nearest tenth of a degree
Dewpoint
Celsius rounded to the nearest tenth of a degree
Relative Humidity
percentage rounded to the nearest 1% (0100%)
Wind_Direction (10m, 60m, 120m)
Degrees rounded to the nearest degree (0359) North is 0, East is 90, South is 180, and West is 270
Wind_Speed (10m, 60m, 120m)
meters per second rounded to the nearest m/s
Wind_Gust
meters per second rounded to the nearest m/s
Clouds
This is a derived value based on the overall cloudiness of a location by taking various relative humidity samples throughout the atmospheric column.
05 
Clear 
520 
Mostly Clear 
2070 
Partly Cloudy 
7090 
Mostly Cloudy 
>90 
Cloudy 
Accumulated Rain
millimeters rounded to the nearest mm
Accumulated Snow
centimeters rounded to the nearest cm
Accumulated Ice
millimeters rounded to the nearest mm
Supercell Index
1100 index rounded to the nearest digit
Traffic Index
1100 index rounded to the nearest digit
High Clouds
percentage rounded to the nearest 1% (0100%)
Mid Level Clouds1
percentage rounded to the nearest 1% (0100%)
Mid Level Clouds2
percentage rounded to the nearest 1% (0100%)
Low Clouds
percentage rounded to the nearest 1% (0100%)
Probability of Precipitation
percentage rounded to the nearest 1% (0100%)
RADAR VARIABLES
Precip Type
PrecipType Value 
Precipitation Type 
0 
No Precip 
1 
Rain 
2 
Mixed Precipitation 
5 
Snow 
3 and 4 
Reserved for Later Use 
Reflectivity
decibels rounded to the nearest digit
DBZ 
Precipitation Intensity 
010 
No Precipitation or Drizzle 
1025 
Light Precipitation 
2540 
Moderate Precipitation 
40+ 
Heavy Precipitation 

Level2 Reflectivity
decibels rounded to the nearest digit
DBZ 
Precipitation Intensity 
Less than 10 
No Precipitation or Drizzle 
1025 
Light Precipitation 
2540 
Moderate Precipitation 
40+ 
Heavy Precipitation 

Hailvision
millimeters rounded to the nearest digit
Rainvision
millimeters rounded to the nearest digit
Snowvision
millimeters rounded to the nearest digit
Icevision
millimeters rounded to the nearest digit
METRIC ALTERNATIVE1 UNITS
FORECAST VARIABLES
Temperature
Celsius rounded to the nearest tenth of a degree
Feels Like
Celsius rounded to the nearest tenth of a degree
Dewpoint
Celsius rounded to the nearest tenth of a degree
Relative Humidity
percentage rounded to the nearest 1% (0100%)
Wind_Direction (10m, 60m, 120m)
Degrees rounded to the nearest degree (0359) North is 0, East is 90, South is 180, and West is 270
Wind_Speed (10m, 60m, 120m)
kilometers per hour rounded to the nearest km/h
Wind_Gust
kilometers per hour rounded to the nearest km/h
Clouds
This is a derived value based on the overall cloudiness of a location by taking various relative humidity samples throughout the atmospheric column.
05 
Clear 
520 
Mostly Clear 
2070 
Partly Cloudy 
7090 
Mostly Cloudy 
>90 
Cloudy 
Accumulated Rain
millimeters rounded to the nearest mm
Accumulated Snow
centimeters rounded to the nearest cm
Accumulated Ice
millimeters rounded to the nearest mm
Supercell Index
1100 index rounded to the nearest digit
Traffic Index
1100 index rounded to the nearest digit
High Clouds
percentage rounded to the nearest 1% (0100%)
Mid Level Clouds1
percentage rounded to the nearest 1% (0100%)
Mid Level Clouds2
percentage rounded to the nearest 1% (0100%)
Low Clouds
percentage rounded to the nearest 1% (0100%)
Probability of Precipitation
percentage rounded to the nearest 1% (0100%)
RADAR VARIABLES
Precip Type
PrecipType Value 
Precipitation Type 
0 
No Precip 
1 
Rain 
2 
Mixed Precipitation 
5 
Snow 
3 and 4 
Reserved for Later Use 
Reflectivity
decibels rounded to the nearest digit
DBZ 
Precipitation Intensity 
010 
No Precipitation or Drizzle 
1025 
Light Precipitation 
2540 
Moderate Precipitation 
40+ 
Heavy Precipitation 

Level2 Reflectivity
decibels rounded to the nearest digit
DBZ 
Precipitation Intensity 
Less than 10 
No Precipitation or Drizzle 
1025 
Light Precipitation 
2540 
Moderate Precipitation 
40+ 
Heavy Precipitation 

Hailvision
millimeters rounded to the nearest digit
Rainvision
millimeters rounded to the nearest digit
Snowvision
millimeters rounded to the nearest digit
Icevision
millimeters rounded to the nearest digit
Raw units
FORECAST VARIABLES
Temperature
Kelvin rounded to the nearest thousandth of a degree
Feels Like
Kelvin rounded to the nearest thousandth of a degree
Dewpoint
Kelvin rounded to the nearest thousandth of a degree
Relative Humidity
percentage rounded to the nearest hundredth of a percent (0100%)
Wind_Direction (10m, 60m, 120m)
Radians rounded to the thousandth (02pi)
Wind_Speed (10m, 60m, 120m)
meters per second rounded to the nearest thousandth m/s
Wind_Gust
meters per second rounded to the nearest thousandth m/s
Clouds
This is a derived value based on the overall cloudiness of a location by taking various relative humidity samples throughout the atmospheric column.
05 
Clear 
520 
Mostly Clear 
2070 
Partly Cloudy 
7090 
Mostly Cloudy 
>90 
Cloudy 
Accumulated Rain
Inches rounded to the nearest thousandth of an inch
Accumulated Snow
Inches rounded to the nearest thousandth of an inch
Accumulated Ice
Inches rounded to the nearest thousandth of an inch
Supercell Index
1100 index rounded to the nearest digit
Traffic Index
1100 index rounded to the nearest digit
High Clouds
percentage rounded to the nearest hundredth of a 1% (0100%)
Mid Level Clouds1
percentage rounded to the nearest hundredth of a 1% (0100%)
Mid Level Clouds2
percentage rounded to the nearest hundredth of a 1% (0100%)
Low Clouds
percentage rounded to the nearest hundredth of a 1% (0100%)
Probability of Precipitation
percentage rounded to the thousandth of a percent (0100%)
RADAR VARIABLES
Precip Type
PrecipType Value 
Precipitation Type 
0 
No Precip 
1 
Rain 
2 
Mixed Precipitation 
5 
Snow 
3 and 4 
Reserved for Later Use 
Reflectivity
decibels rounded to the nearest thousandth of a digit
DBZ 
Precipitation Intensity 
010 
No Precipitation or Drizzle 
1025 
Light Precipitation 
2540 
Moderate Precipitation 
40+ 
Heavy Precipitation 

Level2 Reflectivity
decibels rounded to the nearest thousandth of a digit
DBZ 
Precipitation Intensity 
Less than 10 
No Precipitation or Drizzle 
1025 
Light Precipitation 
2540 
Moderate Precipitation 
40+ 
Heavy Precipitation 

Hailvision
millimeters rounded to the nearest hundredth of a millimeter
Rainvision
millimeters rounded to the nearest hundredth of a millimeter
Snowvision
millimeters rounded to the nearest hundredth of a millimeter
Icevision
millimeters rounded to the nearest hundredth of a millimeter
