The frost forecast percentage is calculated by combining data from several computer models.
The calculation is based on the number of runs forecasting temperatures to fall to or below 0C. Ground frost is considered possible at 3.5C or lower.
frost today, tomorrow or the day after?
frost during the following ten days?
ground frost today, tomorrow or the day after?
ground frost during the following ten days?
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See the Model inventory for the full list of model charts and data