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Snow and Frost API Parameters

Frost and Thaw Depth | Soil Frost | Ground Frost | Amount of Snow Melt | Amount of Fresh Snow | Snow Depth | Snow Water Equivalent | Snow Density | Snowfall Probability | Snow Drift | Rime Probability

Frost & Thaw Depth

The frost and thaw depth parameters indicate the depth to which the earth has frozen and the depth to which the earth has thawed in centimeters based on information from different soil layers. 
frost_depth:cm
Examples
  • Time series showing the frost and thaw depth: Frost thaw example Current situation: https://api.meteomatics.com/2025-04-23T00:00:00Z--2025-04-28T00:00:00Z:PT1H/frost_depth:cm,thaw_depth:cm/63.07604,-152.55482/html
  • An output of the corresponding csv file. 
    validdate;frost_depth:cm;t_2m:C
validdate;frost_depth:cm;thaw_depth:cm
2022-10-17T06:00:00Z;18.6;-666
2022-10-17T06:05:00Z;18.6;-666
2022-10-17T06:10:00Z;18.6;-666
2022-10-17T06:15:00Z;18.6;-666
...
2022-10-17T18:10:00Z;17.5;-666
2022-10-17T18:15:00Z;17.5;-666
2022-10-17T18:20:00Z;17.5;-666
2022-10-17T18:25:00Z;17.5;-666
2022-10-17T18:30:00Z;17.5;-666
2022-10-17T18:35:00Z;17.5;-666
2022-10-17T18:40:00Z;-666;5.1
2022-10-17T18:45:00Z;-666;5.7
2022-10-17T18:50:00Z;-666;6.3
2022-10-17T18:55:00Z;-666;6.8
2022-10-17T19:00:00Z;-666;7.2
2022-10-17T19:05:00Z;-666;7.3
2022-10-17T19:10:00Z;-666;7.5
2022-10-17T19:15:00Z;-666;7.6
...
2022-10-18T23:50:00Z;15.4;-666
2022-10-18T23:55:00Z;15.4;-666
2022-10-19T00:00:00Z;15.4;-666

Soil Frost

This parameter provides the probability in percent for the occurrence of soil frost based on surface and below ground temperatures. 
soil_frost:p
Examples

Ground Frost

This parameter provides the probability in percent for the occurrence of ground frost based on the surface temperature (0m), dew point temperature, wind speed and global radiation. 
prob_ground_frost_<interval>:p
Available intervals: 1h, 2h, 3h, 6h, 12h, 24h

Examples

Amount of Snow Melt

Following parameter returns the snow height that melted within the given interval, i.e. the difference in snow height in cm: 
snow_melt_<interval>:cm
Following parameter returns the height of the water equivalent of the melted snow in mm (that is the same as l/m²). Please note that it is not the height of the snow cover in mm. 
snow_melt_<interval>:mm
Available intervals: 1h, 3h, 6h, 12h, 24h

Examples

Amount of Fresh Snow

Gives the amount in centimeters of fresh snow accumulated on the ground during the indicated time interval. 
fresh_snow_<interval>:cm
Available intervals: 1h, 3h, 6h, 12h, 24h

Examples

Snow Depth

Gives the snow depth in any of the available units. 
snow_depth:<unit>

Available units: m, cm, mm

Examples

Snow Water Equivalent

Gives the snow height in water equivalent. 
snow_water_equivalent:<unit>

Available units: m, mm

Examples

Snow Density

Gives the snow density in kg m-3. For snow depths below 60 cm, a constant density of 250 kg m-3 is assumed. 
snow_density:kgm3
Examples

Snowfall Probability

This index provides the probability in percent for precipitation to occur in the form of snow. 
prob_snowfall:p
Examples

Snow Drift

The snow drift parameter describes how strong snow is carried over the surface due to environmental factors such as wind speed. The index ranges from 0 to 6 with higher values indicating a higher amount of fresh snow being transported because of high wind speeds. 
snow_drift:idx
Example

Rime Probability

This parameter describes the probability of rime occurrence. It is given in a range from 0 to 100% and is based on surface temperature (0m), dew point temperature, wind speed and global radiation. 
prob_rime:p
Example