UKCP09: 5km Gridded Mean Vapour Pressure for the UK, 1961-1990

UKCP09 provides monthly average mean vapour pressure data on a 5km grid for the United Kingdom. The dataset contains 12 files, one for each month, averaged over the 1961-1990 period. It was created with support from the UK Department for Environment, Food and Rural Affairs (Defra) and is promoted by the UK Climate Impacts Programme.

Use Cases

• Modeling historical atmospheric moisture content based on the mean vapour pressure variable.
• Analyzing seasonal humidity patterns based on the 12 monthly average files.
• Creating baseline climate maps for the UK based on the 5km gridded spatial resolution.
• Studying long-term climate averages for the 1961-1990 reference period.

Strengths

• Data is averaged over a 30-year climatological reference period (1961-1990).
• Spatial resolution is specified as a 5km grid covering the UK.
• Dataset consists of 12 distinct files, one for each calendar month.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data freshness should be verified; the last metadata update is 2026-07-08.

Provenance

Source

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

Collection Method

Likely derived from meteorological station observations and interpolation to a grid.

Time Range

1961-1990 (long-term average period).

Freshness

Last updated 2026-07-08 13:32:49.236851; freshness should be verified

Geography

United Kingdom, on a 5km grid.