This website uses cookies. By continuing to use this website you are agreeing to our use of cookies. 



Thunderstorm occurrence at ten sites across the UK digitsied from the UK Met Office Monthly Weather Records (1884-1993)

Latest Data Update: 2019-07-08
Status: Completed
Online Status: ONLINE
Publication State: Citable
Publication Date: 2019-08-12
DOI Publication Date: 2019-08-12
Download Stats: last 12 months
Dataset Size: 1 Files | 156KB


This dataset contains UK Met Office Daily Weather Reports (DWR) from ten sites from the UK Met Office Monthly Weather Records (1884-1993), using the recently-scanned UK Met Office Monthly Weather Reports (MWR). The data are presented as is, with no attempt to provide any corrections or calibration. Approximately half the stations exhibit sharp drops in thunderdays at various points between 1960 and 1990. Comparison with nearby Met Office Integrated Data Archive System (MIDAS) stations suggests the low thunderdays are the result of changes in observing practice, rather than genuine changes in thunderstorm occurrence. These potential data issues limit interpretation of the long-term trends.

DWR contain extensive logs of UK thunderstorm activity, in the form of thunderday observations. To date, only a very small fraction of these data have been digitised as part of the MIDAS dataset, and exclusively after 1950.

Citable as:  Valdivieso, M.; Owens, M. (2019): Thunderstorm occurrence at ten sites across the UK digitsied from the UK Met Office Monthly Weather Records (1884-1993). Centre for Environmental Data Analysis, 12 August 2019. doi:10.5285/2503df629a8a485e8582e5150876b210.
Abbreviation: Not defined
Keywords: Thunderstorms, UK, Weather reports


Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
Access to these data is available to any registered CEDA user. Please Login or Register for an account to gain access.
Use of these data is covered by the following licence: When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data originates from the Met Office it has been digitised by the data provider without further QC by the Met Office and therefore the Met Office is currently unable to confirm the accuracy of the keying. They have been digitised and deposited at the Centre for Environmental Data Analysis (CEDA) for archiving.

Data Quality:
The data was originally published by the Met Office shortly after its collection and was not subject to further Quality Control checks following publication. As a result it is possible that values from the Met Office MIDAS data base may differ from those held in the DWR and the MWR, and hence the data set available from the CEDA archive.
File Format:
Data are netCDF formatted

Related Documents

No documents related to this record were found.

Process overview

This dataset was generated by the computation detailed below.

UK Met Office Daily Weather Reports (DWR)


UK Met Office Daily Weather Reports (DWR) digitised from the Met Office.

Input Description


Output Description


Software Reference


  • long_name: Number of days of thunder heard per month
  • var_id: thunder
  • units: degrees_north
  • var_id: latitude
  • units: degrees_east
  • var_id: longitude
  • var_id: time

Co-ordinate Variables

Temporal Range
Start time:
End time:
Geographic Extent

Related parties
Funders (1)
Principal Investigators (2)