Ash billows from the Eyjafjallajokull volcano on May 8, 2010 in Hvolsvoellur, Iceland. In 2010, Katla's neighboring volcano, Eyjafjallajokull, caused chaos across Europe and shut down most of the continent's airspace. Thousands of flights were grounded because of the volcanic ash following its eruption.
During winter overnight frost can occur. Usually no rainfall occurs between June and September. The annual precipitation average of the last 20 years for Windhoek is 370 mm. Of this 296 mm of rain were received from January until May, 5.2 mm from June to September and 76 mm from October to December.entral highlands around Windhoek. Between the Kalahari in the east and the Namib Desert in the west lies the Namibian central highland with the capital Windhoek in its centre. Due to its altitude of 1700 metres on average (at Windhoek even up to 2000m) this highland has moderate temperatures and average rainfalls.
With an average annual precipitation of 3,668 mm (144.4 in), Lago FrÃ­as in RÃ­o Negro Province is considered to be the wettest place in Argentina. Although an average annual precipitation of 6,251 mm (246.1 in) has been recorded in Lago Tromen in NeuquÃ©n Province, the validity of the data is dubious owing to fewer years of data. Lago FrÃ­as also has the record for wettest monthly precipitation in Argentina: 1,147 mm (45.2 in) of precipitation was recorded in May 1951.