UKCP09: 1961-1990 Baseline Averages for Ground Frost Days by UK Region

Long-term monthly and annual averages for days of ground frost across 14 UK administrative regions and 23 river basins. The Met Office produced these regional values by averaging 5 x 5 km grid cell data for the 1961-1990 climate baseline. Data access requires registration on the Met Office website.

Use Cases

• Analyzing regional climate variability based on monthly ground frost averages.
• Establishing historical baselines for climate impact studies using the 1961-1990 period.
• Comparing frost day trends between administrative regions and river basins.

Strengths

• Data covers a 30-year climate baseline period (1961-1990).
• Provides values for 14 administrative regions and 23 river basins.
• Values are derived from a spatial average of 5 x 5 km grid cells.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Met Office, with support from the UK Department for Environment, Food and Rural Affairs (Defra).

Collection Method

Regional values are averages of 5 x 5 km grid cell data within each boundary.

Time Range

1961-1990

Freshness

Last updated 2026-07-08 13:32:51.057678; freshness should be verified.

Geography

United Kingdom (14 administrative regions, 23 river basins)