The long-term Metro Vancouver weather forecast includes warmer-than-average temperatures through the summer.
Environment Canada meteorologist Lisa Erven tells V.I.A. that weather models indicate that the remainder of May will feature temperatures above the seasonal average. However, the May long weekend is expected to see temperatures trending closer to normal.
Temperatures around the seasonal average are expected through the week and into the weekend. The average is a high of 17 C and a low of 8 C, based on Environment Canada's historical weather data.
Erven notes that the May forecast includes an average of the month's daytime highs and overnight lows, meaning it doesn't show individual weather events and anomalies. Instead, it indicates an overall trend or "overarching umbrella."
This warmer trend is expected to continue into the first month of meteorological June, with the Canadian and other international weather models showing a "moderate" signal.
"The signal increases to moderate to strong for a warmer signal in July and August," she adds.
Erven notes that the precipitation signal for may shows "slight hints of a drier signal" for parts of the B.C. south coast, but they aren't necessarily supported by foreign guidance.
For summer, June through August, Environment Canada doesn't currently have a precipitation forecast.
"Summertime precipitation relies on afternoon showers, which are more small-scale features and aren't well defined by these broader, larger-scale climate models," she describes.
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