Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1  riser(noun) a person who rises (especially from bed) he's usually a late riser. 2  riser, riser pipe, riser pipeline, riser main(noun) a vertical pipe in a building. 3  riser(noun) structural member consisting of the vertical part of a stair or step.
Noblesville Weather - Current Temperature: -12.5 Â°C, Clear, Today's Temperature : -12 / -22 Â°C, Weather in Noblesville Indiana noblesville online us local search
Average Weather in December in Brownsville Texas, United States. In Brownsville, the month of December is characterized by falling daily high temperatures, with daily highs decreasing by 5Â°F, from 76Â°F to 70Â°F over the course of the month, and rarely exceeding 84Â°F or dropping below 56Â°F.