- Warmer growing season - mean temperatures have increased in all regions of Scotland and in all seasons
- Longer growing season - growing season length has increased in all regions of Scotland
- Milder winters - number of days of ground frost has decreased in all areas of Scotland
- Drier summers in south and east Scotland
- Wetter autumns and winters generally
- No change in mean wind speed - but more extreme high winds.
For a detailed discussion of the changes in Scotland's climate between 1961 and 2004 see:
By C. Barnett, J. Hossell, M. Perry, C. Procter, and G. Hughes.
Sniffer Project CC03, Scotland and Northern Ireland Forum for Environmental Research.
Measured changes in temperature and rainfall between 1961-2004
Regional variations in seasonal mean temperatures have occurred in the last 40 years. Between 1961 and 2004 winters have become milder by as much as 2°C in parts of south-east Scotland. Springs and summers are generally about 1°C warmer across Scotland now than in the early 1960s.
Regional changes have occurred in the total annual rainfall between western and eastern Scotland. Between 1961 and 2004, Scotland experienced a 20% increase in precipitation, due to a large increase (50%) in the total winter precipitation, particularly in northern and western Scotland. Eastern Scotland has experienced a smaller 30% increase in winter precipitation.