Currently, October is the cheapest month in which you can book a flight from Islip, New York to British Columbia (average of $258). Flying from Islip, New York to British Columbia in July is currently the most expensive (average of $417). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
In terms of precipitation, rainfall in British Columbia ranges from 1.4 - 7.4 inches per month. November is typically the wettest month, when rainfall can reach 7.4 in. July is typically the driest time to visit British Columbia when rainfall is around 1.4 in.
If weather is an important factor for your trip to British Columbia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).