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General monthly summary

How the weather affected your business

The General Monthly Summary (GMS) is a record of weather data, giving daily values, means and averages for a range of weather elements for 14 urban sites. It is a 'weather log' for companies that need to assess how the weather may have affected their business.

The weather elements covered are:

  • temperature, maximum and minimum;
  • rainfall;
  • wind, average and maximum gust;
  • sunshine;
  • significant weather - days when thunderstorms, hail, fog, snow and gales were reported.

For further information or to purchase one of our building and construction services, please send an e-mail to construction@metoffice.gov.uk or call our 24-hour Customer Centre.