Sentiment among U.S. homebuilders climbed to a six-month high in April, another indication that the housing market is gathering momentum during the crucial spring season.

The National Association of Home Builders/Wells Fargo Housing Market Index rose 1 point to 63, matching the median estimate in Bloomberg’s survey of economists, on improvements in present sales and buyer traffic, data released Tuesday showed. Readings over 50 indicate more builders view conditions as good than poor.