According to several literature review, key historical climate trends include:
- Average annual temperature has increased in Afghanistan by 0.6° C between 1960 and 2008.
- The highest rate of increase occurred during the months of September-November, increasing at an average rate of 0.29° C per decade.
- The frequency of ‘hot’ days and nights in Afghanistan has increased in each season since 1960; the average number of ‘hot’ days per year increased by 25 days while ‘hot’ nights per year increased by 26 nights between 1960 and 2003. September through November saw the greatest rate of increase in ‘hot’ days and nights.
- The average number of ‘cold’ days and nights per year have decreased since 1960; the average number of ‘cold’ days per year decreased by 12 days and ‘cold’ nights experienced a similar amount of decrease between 1960 and 2003. December through February experienced the greatest rate of decrease in ‘cold’ days and nights.
- Average annual precipitation has decreased between 1960 and 2008, with an average rate of decrease of 0.5 mm per month per decade.
- Observations of maximum 1- and 5-day precipitation has decreased slightly in March-May rainfall, but has also slightly increased in other seasons. Drought cycle within Afghanistan in recent years has tended to occur more frequently.
- Heavy precipitation events have increased in frequency in South Asia while decreases have been observed in light rainfall events.
The section below allows you to explore climate temporal and spatial variability from 1901 to 2016. The dataset is produced by the Climatic Research Unit (CRU) of University of East Anglia (UEA).