Precipitation related variables

Number of consecutive dry days


Figure 34 - The maximum number of consecutive dry days each year for Scottish regions, from 1961 to 2004, with smoothed curves showing a running average.

Table 18 - Change in maximum number of consecutive dry days (in days) between 1961 and 2004.


North Scotland East Scotland West Scotland Scotland
Consecutive dry days (number of days) -0.2 1.1 0.1 0.3


Regional trends


  • From 1961 to 2004 there has been very little change in the maximum number of consecutive dry days (that is to say dry days in a row) in a year.
  • It is also clear that there is no obvious long-term trend in this index for this period.
  • The years with the highest values of consecutive dry days in each region often coincide. This shows a period of widespread dry weather. However, there are also many examples of years when correlation between the regions is not high.

Spatial trends


  • There is a clear east-west contrast in the change in number of dry days in a row.
  • This pattern does not correlate well with any of the rainfall change patterns already presented. This might possibly show that the change is unlikely to happen mainly in any one particular season.

Future trends


  • There are no estimates in the UKCIP02 report for this measure.


Figure 35 - Pattern of change in maximum number of consecutive dry days each year (number of days), from 1961 to 2004.