Although this summer in British Columbia is forecast to be cooler and wetter compared to 2021, experts say the need to conserve Metro Vancouver's water supply is more important than ever. While a cool, damp spring has made the recent introduction of lawn watering restrictions appear unnecessary, such measures are required to preserve the region's water supply through to the end of summer. Unlike last year, when a deadly, record-breaking heat dome settled over the province in June, the hottest time in 2022 is predicted to be mid-July to mid-August, according to Environment Canada — when reservoir levels are much lower.