https://www.accuweather.com/en/us/seattle/98104/june-weather/351409 Wow, Seattle actually got to have 18 June days that were at least 70F. That's pretty sad that barely half of June got above 70F. Only 8 days in June reached or exceeded 80F. That's pretty sad to barely have just over a quarter of June in the 80s. However, only 6 days in June were at least 30C or 86F.
https://www.accuweather.com/en/us/anchorage/99501/june-weather/346835 At least Seattle was warmer than Anchorage, Alaska today.
Seattle usually has significantly hotter summer days than Vancouver, BC.
https://thedigitallabyrinth.blogspot.com/search?q=30C+and+86F