Research Article
Five Decadal Trends in Averages and Extremes of Rainfall and Temperature in Sri Lanka
Table 2
Number of stations exhibiting statistically significant trends in measures listed in Table
1 for daily total rainfall from 1961 to 2015.
| | Total | Wet days | Extreme days | Maximum values | | Total | − | + | − | + | − | + | − | + | − | + |
| Annual | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | Monthlies | 1 | 1 | SWM | 0 | 0 | 3 | 1 | 0 | 0 | 0 | 3 | Jan | 0 | 0 | FIM | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | Feb | 0 | 0 | NEM | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | Mar | 0 | 0 | SIM | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 3 | Apr | 0 | 0 | | Mean events for the duration | May | 2 | 0 | | 2 d | 3 d | 5 d | 7 d | Jun | 0 | 0 | | − | + | − | + | − | + | − | + | Jul | 1 | 0 | | 0 | 3 | 1 | 2 | 1 | 0 | 1 | 2 | Aug | 1 | 0 | | Max events for the duration | Sep | 0 | 0 | | 2 d | 3 d | 5 d | 7 d | Oct | 0 | 1 | | − | + | − | + | − | + | − | + | Nov | 0 | 1 | | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | Dec | 0 | 0 | | Number of heavy events for the duration | | | | | | 2 d | 3 d | 5 d | 7 d | | | | | | − | + | − | + | − | + | − | + | | | | | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | | | | | Dry events | | | | | | | | Mean duration | Max duration | | | | | | | | | | − | + | − | + | | | | | | | | | | 0 | 7 | 0 | 4 | | | | | | |
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