The 6 figures presented below show maximum and minimum values of total thickness (h - h) in dekametres. PLEASE READ THE CAUTIONARY NOTES BELOW:
HIGHEST BRITISH ISLES:.... 576 dam in July & August around the Channel Islands.
LOWEST BRITISH ISLES:..... 491 dam in January around the Shetland Islands.
- Locations/values are deliberately displayed in general terms as these data are extracted from small-scale charts. They are here given to roughly define the 'reasonable' limits of total thickness values.
- The series covers the period 1945 - 1993, so extremes may not be up to date. Also the early years analysis would not be as accurate as middle/latter parts of the series.
- Data are extracted from records held at the National Meteorological Library. They are displayed here purely for amateur/educational use. If you wish to use these values in any way - i.e. to support an article, you must contact the NML (see the uk.sci.weather FAQ for details), and obtain detail and permission.