<P> In the United Kingdom and Ireland, an April shower is rain during the month of April . One of the major causes of the often heavy downpours is the position of the jet stream . In early spring, the jet stream starts to move northwards, allowing large depressions to bring strong winds and rain in from the Atlantic . In one day the weather can change from springtime sunshine to winter sleet and snow . The track of these depressions can often be across Ireland and Scotland bringing bands of rain followed by heavy showers (often of hail or snow) and strong blustery winds . </P> <P> The proverb "March winds and April showers bring forth May flowers", first recorded in 1886, or the shorter, trochaic version "April showers bring May flowers" (originally "Sweet April showers / Do spring May flowers", part of a poem recorded in 1610) are common expressions in English speaking countries . The phrase is referenced in the General Prologue of The Canterbury Tales: "Whan that Aprill, with his shoures soote The droghte of March hath perced to the roote". </P>

Where does the term april showers come from
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