Climate in Chilliwack, Canada

Chilliwack, Canada has a humid continental climate. The annual average temperature is about 8.8°C, with around 1744 hours of sunshine; the national rainfall baseline is roughly 801 mm across 91 rainy days a year. The warmest month is Jul (highs near 24.4°C) and the coldest is Jan (lows near -6.8°C). These are deterministic planning estimates, not a forecast or measured station data. Temperature and sunshine follow the city's latitude; rainfall and the climate zone come from a country-level baseline that every city in the country shares (refined by region in the United States, Canada and Australia), so they do not show local differences. Check current conditions with an official meteorological service before travel.

Data year 2025; last updated 2026-05-16.

Chilliwack is classified as Humid Continental. The classification combines the city’s own temperature range, which follows its latitude, with a rainfall pattern taken at country level for Canada — so cities in the same country usually share a zone.

The rainfall baseline for Canada is about 801 mm a year over roughly 91 rainy days, with the wettest month Jun and the driest Jan. This figure is not specific to Chilliwack: every city in Canada carries the same baseline, so it will not show the difference between, say, a dry inland city and a wet coastal one. Use an official meteorological service for local rainfall.

Chilliwack sees an estimated 1744 hours of sunshine a year, concentrated in the warmer months around Jul.

By temperature and rainfall, the most comfortable months in Chilliwack are Aug, Jun, Sep. Conditions vary year to year — verify with a current forecast before booking.

Chilliwack has a climate comfort score of 64/100, a comfortable year-round climate by this measure. The score weights mild temperatures most, then rainfall balance, sunshine, low seasonality, and the absence of extreme winter cold or summer heat.

• Climate in Abbotsford — Oceanic, comfort 64/100
• Climate in Surrey — Oceanic, comfort 64/100
• Climate in Vancouver — Oceanic, comfort 64/100