The city has an average daily temperature range between , with little variation through the year. There are two rainy seasons annually, from February to June and from September to December. These are separated by two dry seasons: the major one from June to September, during which there is often no rain at all, and a shorter and less severe one from December to February. The wettest month is April, with an average rainfall of , while the driest month is July. Global warming has caused a change in the pattern of the rainy seasons. According to a report by the Strategic Foresight Group, change in climate has reduced the number of rainy days experienced during a year, but has also caused an increase in frequency of torrential rains. Strategic Foresight also characterise Rwanda as a rapidly warming country, with an increase in average temperature of between 0.7 °C to 0.9 °C over the 50 years to 2013.